<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>483</ContextCount>
  <ElementCount>539</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>148</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>9</UnitCount>
  <MyReports>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>75000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>75010 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>75020 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>75030 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveLoss</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>75050 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveIncomeLossParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>75060 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' (DEFICIT) EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfChangesInShareholdersDeficitEquity</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' (DEFICIT) EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>75070 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' (DEFICIT) EQUITY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfChangesInShareholdersDeficitEquityParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' (DEFICIT) EQUITY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>75080 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995447 - Disclosure - Insider Trading Policies and Procedures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc</Role>
      <ShortName>Insider Trading Policies and Procedures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995457 - Disclosure - Cybersecurity Risk Management, Strategy and Governance</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureCybersecurityRiskManagementStrategyAndGovernance</Role>
      <ShortName>Cybersecurity Risk Management, Strategy and Governance</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995467 - Disclosure - Description of Business and Organization</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureDescriptionOfBusinessAndOrganization</Role>
      <ShortName>Description of Business and Organization</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995477 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995487 - Disclosure - Accounts Receivable, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccountsReceivableNet</Role>
      <ShortName>Accounts Receivable, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995497 - Disclosure - Inventories, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureInventoriesNet</Role>
      <ShortName>Inventories, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995507 - Disclosure - Prepayments and Other Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePrepaymentsAndOtherAssets</Role>
      <ShortName>Prepayments and Other Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995517 - Disclosure - Property and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePropertyAndEquipmentNet</Role>
      <ShortName>Property and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995527 - Disclosure - Operating Lease</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOperatingLease</Role>
      <ShortName>Operating Lease</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995537 - Disclosure - Short-term Borrowings</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureShorttermBorrowings1</Role>
      <ShortName>Short-term Borrowings</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995547 - Disclosure - Convertible Debts</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureConvertibleDebts</Role>
      <ShortName>Convertible Debts</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995557 - Disclosure - Accrued Expenses and Other Current Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccruedExpensesAndOtherCurrentLiabilities</Role>
      <ShortName>Accrued Expenses and Other Current Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995567 - Disclosure - Financial Liability</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureFinancialLiability</Role>
      <ShortName>Financial Liability</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995577 - Disclosure - Fair Value Measurement</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureFairValueMeasurement</Role>
      <ShortName>Fair Value Measurement</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995587 - Disclosure - Mezzanine Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureMezzanineEquity</Role>
      <ShortName>Mezzanine Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995597 - Disclosure - Ordinary Shares, Series Angel Shares and Series Seed Preference Shares</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOrdinarySharesSeriesAngelSharesAndSeriesSeedPreferenceShares1</Role>
      <ShortName>Ordinary Shares, Series Angel Shares and Series Seed Preference Shares</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995607 - Disclosure - Share-Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSharebasedCompensation</Role>
      <ShortName>Share-Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995617 - Disclosure - Income Tax</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTax</Role>
      <ShortName>Income Tax</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995627 - Disclosure - Loss Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureLossPerShare</Role>
      <ShortName>Loss Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995637 - Disclosure - Related Party Balance And Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRelatedPartyBalanceAndTransactions1</Role>
      <ShortName>Related Party Balance And Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>995647 - Disclosure - Revenue Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRevenueInformation</Role>
      <ShortName>Revenue Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>995657 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>995677 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>995687 - Disclosure - Parent Company Only Condensed Financial Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureParentCompanyOnlyCondensedFinancialInformation</Role>
      <ShortName>Parent Company Only Condensed Financial Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>995697 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>995707 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>995717 - Disclosure - Accounts Receivable, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccountsReceivableNetTables</Role>
      <ShortName>Accounts Receivable, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccountsReceivableNet</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995727 - Disclosure - Inventories, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureInventoriesNetTables</Role>
      <ShortName>Inventories, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureInventoriesNet</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995737 - Disclosure - Prepayments and Other Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePrepaymentsAndOtherAssetsTables</Role>
      <ShortName>Prepayments and Other Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePrepaymentsAndOtherAssets</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>995747 - Disclosure - Property and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePropertyAndEquipmentNetTables</Role>
      <ShortName>Property and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePropertyAndEquipmentNet</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>995757 - Disclosure - Operating Lease (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOperatingLeaseTables</Role>
      <ShortName>Operating Lease (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOperatingLease</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>995767 - Disclosure - Short-term Borrowings (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureShorttermBorrowingsTables</Role>
      <ShortName>Short-term Borrowings (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureShorttermBorrowings1</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>995777 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables</Role>
      <ShortName>Accrued Expenses and Other Current Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccruedExpensesAndOtherCurrentLiabilities</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>995787 - Disclosure - Fair Value Measurement (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureFairValueMeasurementTables</Role>
      <ShortName>Fair Value Measurement (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureFairValueMeasurement</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>995797 - Disclosure - Mezzanine Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureMezzanineEquityTables</Role>
      <ShortName>Mezzanine Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureMezzanineEquity</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>995807 - Disclosure - Share-Based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSharebasedCompensationTables</Role>
      <ShortName>Share-Based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSharebasedCompensation</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>995817 - Disclosure - Income Tax (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTaxTables</Role>
      <ShortName>Income Tax (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTax</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>995827 - Disclosure - Loss Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureLossPerShareTables</Role>
      <ShortName>Loss Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureLossPerShare</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>995837 - Disclosure - Related Party Balance And Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRelatedPartyBalanceAndTransactionsTables</Role>
      <ShortName>Related Party Balance And Transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRelatedPartyBalanceAndTransactions1</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>995847 - Disclosure - Revenue Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRevenueInformationTables</Role>
      <ShortName>Revenue Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRevenueInformation</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>995867 - Disclosure - Parent Company Only Condensed Financial Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureParentCompanyOnlyCondensedFinancialInformationTables</Role>
      <ShortName>Parent Company Only Condensed Financial Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xcharge.com/20251231/taxonomy/role/DisclosureParentCompanyOnlyCondensedFinancialInformation</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>995877 - Disclosure - Description of Business and Organization - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureDescriptionOfBusinessAndOrganizationAdditionalInformationDetails</Role>
      <ShortName>Description of Business and Organization - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>995887 - Disclosure - Summary of Significant Accounting Policies - Summary of Cash and Cash Equivalents, Excluding Cash on Hand are Deposited in Financial Institutions at Locations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfCashAndCashEquivalentsExcludingCashOnHandAreDepositedInFinancialInstitutionsAtL</Role>
      <ShortName>Summary of Significant Accounting Policies - Summary of Cash and Cash Equivalents, Excluding Cash on Hand are Deposited in Financial Institutions at Locations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>995897 - Disclosure - Summary of Significant Accounting Policies - Reconciliation of Cash and Cash Equivalents and Restricted Cash Reported Within Consolidated Balance sheets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesReconciliationOfCashAndCashEquivalentsAndRestrictedCashReportedWithinConsolidatedBalanceShe</Role>
      <ShortName>Summary of Significant Accounting Policies - Reconciliation of Cash and Cash Equivalents and Restricted Cash Reported Within Consolidated Balance sheets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>995907 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>995917 - Disclosure - Summary of Significant Accounting Policies - Summary of Property and Equipment Estimated Useful Lives (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentEstimatedUsefulLivesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Summary of Property and Equipment Estimated Useful Lives (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>995927 - Disclosure - Summary of Significant Accounting Policies - Summary of Changes in Contract Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfChangesInContractLiabilitiesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Summary of Changes in Contract Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>995937 - Disclosure - Summary of Significant Accounting Policies - Summary of Concentration of Customers and Suppliers (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfConcentrationOfCustomersAndSuppliersDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Summary of Concentration of Customers and Suppliers (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>995947 - Disclosure - Accounts Receivable, Net - Schedule of Accounts Receivable, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccountsReceivableNetScheduleOfAccountsReceivableNetDetails</Role>
      <ShortName>Accounts Receivable, Net - Schedule of Accounts Receivable, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>995957 - Disclosure - Accounts Receivable, Net - Schedule of Allowance for Doubtful Accounts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccountsReceivableNetScheduleOfAllowanceForDoubtfulAccountsDetails</Role>
      <ShortName>Accounts Receivable, Net - Schedule of Allowance for Doubtful Accounts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>995967 - Disclosure - Inventories, Net - Summary of Inventories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetails</Role>
      <ShortName>Inventories, Net - Summary of Inventories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>995977 - Disclosure - Inventories, Net - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureInventoriesNetAdditionalInformationDetails</Role>
      <ShortName>Inventories, Net - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>995987 - Disclosure - Prepayments and Other Assets - Summary of Prepayments and Other Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePrepaymentsAndOtherAssetsSummaryOfPrepaymentsAndOtherAssetsDetails</Role>
      <ShortName>Prepayments and Other Assets - Summary of Prepayments and Other Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>995997 - Disclosure - Prepayments and Other Assets - Summary of Prepayments and Other Assets (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePrepaymentsAndOtherAssetsSummaryOfPrepaymentsAndOtherAssetsParentheticalDetails</Role>
      <ShortName>Prepayments and Other Assets - Summary of Prepayments and Other Assets (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>996007 - Disclosure - Property and Equipment, Net - Summary of Property Plant and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePropertyAndEquipmentNetSummaryOfPropertyPlantAndEquipmentDetails</Role>
      <ShortName>Property and Equipment, Net - Summary of Property Plant and Equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996017 - Disclosure - Property and Equipment, Net - Summary of Depreciation Expense on Property and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosurePropertyAndEquipmentNetSummaryOfDepreciationExpenseOnPropertyAndEquipmentDetails</Role>
      <ShortName>Property and Equipment, Net - Summary of Depreciation Expense on Property and Equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996027 - Disclosure - Operating Lease - Summary Of Right-of-use Assets And Lease Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOperatingLeaseSummaryOfRightofuseAssetsAndLeaseLiabilitiesDetails</Role>
      <ShortName>Operating Lease - Summary Of Right-of-use Assets And Lease Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996037 - Disclosure - Operating Lease - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOperatingLeaseAdditionalInformationDetails</Role>
      <ShortName>Operating Lease - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>996047 - Disclosure - Operating Lease - Summary Of Supplemental Cash Flow Information Related To Operating Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOperatingLeaseSummaryOfSupplementalCashFlowInformationRelatedToOperatingLeasesDetails</Role>
      <ShortName>Operating Lease - Summary Of Supplemental Cash Flow Information Related To Operating Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>996057 - Disclosure - Operating Lease - Summary Of Maturity Of Lease Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOperatingLeaseSummaryOfMaturityOfLeaseLiabilitiesDetails</Role>
      <ShortName>Operating Lease - Summary Of Maturity Of Lease Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>996077 - Disclosure - Operating Lease - Summary of lease modifications (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOperatingLeaseSummaryOfLeaseModificationsDetails</Role>
      <ShortName>Operating Lease - Summary of lease modifications (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>996087 - Disclosure - Short-term Borrowings - Summary of Short-Term Borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureShorttermBorrowingsSummaryOfShorttermBorrowingsDetails</Role>
      <ShortName>Short-term Borrowings - Summary of Short-Term Borrowings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>996097 - Disclosure - Short-term Borrowings - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureShorttermBorrowingsAdditionalInformationDetails</Role>
      <ShortName>Short-term Borrowings - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>996107 - Disclosure - Short-term Borrowings - Summary of Outstanding Short-Term Bank Loan Balances Payable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureShorttermBorrowingsSummaryOfOutstandingShorttermBankLoanBalancesPayableDetails</Role>
      <ShortName>Short-term Borrowings - Summary of Outstanding Short-Term Bank Loan Balances Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>996117 - Disclosure - Convertible Debts - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureConvertibleDebtsAdditionalInformationDetails</Role>
      <ShortName>Convertible Debts - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>996127 - Disclosure - Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesSummaryOfAccruedExpensesAndOtherCurrentLiabilitiesDetails</Role>
      <ShortName>Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>996137 - Disclosure - Financial Liability - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureFinancialLiabilityAdditionalInformationDetails</Role>
      <ShortName>Financial Liability - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>996147 - Disclosure - Fair Value Measurement - Schedule of Fair Value, Liabilities Measured on Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureFairValueMeasurementScheduleOfFairValueLiabilitiesMeasuredOnRecurringBasisDetails</Role>
      <ShortName>Fair Value Measurement - Schedule of Fair Value, Liabilities Measured on Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>996157 - Disclosure - Fair Value Measurement - Schedule of Reconciliation from Balances of Recurring Fair Value As Level 3 (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureFairValueMeasurementScheduleOfReconciliationFromBalancesOfRecurringFairValueAsLevel3Details</Role>
      <ShortName>Fair Value Measurement - Schedule of Reconciliation from Balances of Recurring Fair Value As Level 3 (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>996167 - Disclosure - Fair Value Measurement - Summary of Fair Values of Financial Liability (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureFairValueMeasurementSummaryOfFairValuesOfFinancialLiabilityDetails</Role>
      <ShortName>Fair Value Measurement - Summary of Fair Values of Financial Liability (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>996177 - Disclosure - Mezzanine Equity - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureMezzanineEquityAdditionalInformationDetails</Role>
      <ShortName>Mezzanine Equity - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>996187 - Disclosure - Mezzanine Equity - Summary of Activities of Preference Shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureMezzanineEquitySummaryOfActivitiesOfPreferenceSharesDetails</Role>
      <ShortName>Mezzanine Equity - Summary of Activities of Preference Shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>996197 - Disclosure - Ordinary Shares, Series Angel Shares And Series Seed Preference Shares - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureOrdinarySharesSeriesAngelSharesAndSeriesSeedPreferenceSharesAdditionalInformationDetails</Role>
      <ShortName>Ordinary Shares, Series Angel Shares And Series Seed Preference Shares - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>996207 - Disclosure - Share-Based Compensation - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSharebasedCompensationAdditionalInformationDetails</Role>
      <ShortName>Share-Based Compensation - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>996217 - Disclosure - Share-Based Compensation - Summary of Compensation Expenses Recognized for Share-based Compensation Granted (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSharebasedCompensationSummaryOfCompensationExpensesRecognizedForSharebasedCompensationGrantedDetails</Role>
      <ShortName>Share-Based Compensation - Summary of Compensation Expenses Recognized for Share-based Compensation Granted (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>996227 - Disclosure - Share-Based Compensation - Summary of Restricted Shares Units Granted (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSharebasedCompensationSummaryOfRestrictedSharesUnitsGrantedDetails</Role>
      <ShortName>Share-Based Compensation - Summary of Restricted Shares Units Granted (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>996237 - Disclosure - Share-Based Compensation - Summary of Restricted Shares Units Granted Under the 2025 Plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSharebasedCompensationSummaryOfRestrictedSharesUnitsGrantedUnderThe2025PlanDetails</Role>
      <ShortName>Share-Based Compensation - Summary of Restricted Shares Units Granted Under the 2025 Plan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>996247 - Disclosure - Income Tax - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTaxAdditionalInformationDetails</Role>
      <ShortName>Income Tax - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>996257 - Disclosure - Income Tax - Schedule of Components of Income (Loss) Before Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTaxScheduleOfComponentsOfIncomeLossBeforeIncomeTaxesDetails</Role>
      <ShortName>Income Tax - Schedule of Components of Income (Loss) Before Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>996277 - Disclosure - Income Tax - Schedule of Reconciliation Between PRC statutory Income tax rate and Effective Income Tax rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTaxScheduleOfReconciliationBetweenPrcStatutoryIncomeTaxRateAndEffectiveIncomeTaxRateDetails</Role>
      <ShortName>Income Tax - Schedule of Reconciliation Between PRC statutory Income tax rate and Effective Income Tax rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>996287 - Disclosure - Income Tax - Summary of Income Taxes Paid (Net of Refunds) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTaxSummaryOfIncomeTaxesPaidNetOfRefundsDetails</Role>
      <ShortName>Income Tax - Summary of Income Taxes Paid (Net of Refunds) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>996297 - Disclosure - Income Tax - Schedule of Deferred Income tax Assets and Deferred Income Tax Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTaxScheduleOfDeferredIncomeTaxAssetsAndDeferredIncomeTaxLiabilitiesDetails</Role>
      <ShortName>Income Tax - Schedule of Deferred Income tax Assets and Deferred Income Tax Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>996307 - Disclosure - Income Tax - Schedule of Tax Loss Carryforwards (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTaxScheduleOfTaxLossCarryforwardsDetails</Role>
      <ShortName>Income Tax - Schedule of Tax Loss Carryforwards (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>996317 - Disclosure - Income Tax - Schedule of Changes in Valuation Allowance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureIncomeTaxScheduleOfChangesInValuationAllowanceDetails</Role>
      <ShortName>Income Tax - Schedule of Changes in Valuation Allowance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>996327 - Disclosure - Loss Per Share - Summary of Loss Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureLossPerShareSummaryOfLossPerShareDetails</Role>
      <ShortName>Loss Per Share - Summary of Loss Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>996337 - Disclosure - Loss Per Share - Summary of Ordinary Shares Equivalents Excluded from the Computation to Eliminate Antidilutive Effect (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureLossPerShareSummaryOfOrdinarySharesEquivalentsExcludedFromTheComputationToEliminateAntidilutiveEffectDetails</Role>
      <ShortName>Loss Per Share - Summary of Ordinary Shares Equivalents Excluded from the Computation to Eliminate Antidilutive Effect (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>996347 - Disclosure - Loss Per Share - Summary of Ordinary Shares Equivalents Excluded from the Computation to Eliminate Antidilutive Effect (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureLossPerShareSummaryOfOrdinarySharesEquivalentsExcludedFromTheComputationToEliminateAntidilutiveEffectParentheticalDetails</Role>
      <ShortName>Loss Per Share - Summary of Ordinary Shares Equivalents Excluded from the Computation to Eliminate Antidilutive Effect (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>996357 - Disclosure - Related Party Balance And Transactions - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRelatedPartyBalanceAndTransactionsAdditionalInformationDetails</Role>
      <ShortName>Related Party Balance And Transactions - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>996367 - Disclosure - Related Party Balance And Transactions - Schedule of Major Transactions with Related Parties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRelatedPartyBalanceAndTransactionsScheduleOfMajorTransactionsWithRelatedPartiesDetails</Role>
      <ShortName>Related Party Balance And Transactions - Schedule of Major Transactions with Related Parties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>996377 - Disclosure - Related Party Balance And Transactions - Schedule of Balance of Amounts Due from Related Parties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRelatedPartyBalanceAndTransactionsScheduleOfBalanceOfAmountsDueFromRelatedPartiesDetails</Role>
      <ShortName>Related Party Balance And Transactions - Schedule of Balance of Amounts Due from Related Parties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>99</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>996387 - Disclosure - Related Party Balance And Transactions - Schedule of Movements of the Allowance for Doubtful Accounts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRelatedPartyBalanceAndTransactionsScheduleOfMovementsOfTheAllowanceForDoubtfulAccountsDetails</Role>
      <ShortName>Related Party Balance And Transactions - Schedule of Movements of the Allowance for Doubtful Accounts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>996397 - Disclosure - Related Party Balance And Transactions - Schedule of Balance of Amounts Due to a Related Party (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRelatedPartyBalanceAndTransactionsScheduleOfBalanceOfAmountsDueToARelatedPartyDetails</Role>
      <ShortName>Related Party Balance And Transactions - Schedule of Balance of Amounts Due to a Related Party (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>996407 - Disclosure - Revenue Information - Summary of Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRevenueInformationSummaryOfRevenueDetails</Role>
      <ShortName>Revenue Information - Summary of Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>102</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>996417 - Disclosure - Revenue Information - Summary of Revenue (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRevenueInformationSummaryOfRevenueParentheticalDetails</Role>
      <ShortName>Revenue Information - Summary of Revenue (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>996427 - Disclosure - Revenue Information - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureRevenueInformationAdditionalInformationDetails</Role>
      <ShortName>Revenue Information - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>996437 - Disclosure - Commitments and Contingencies - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails</Role>
      <ShortName>Commitments and Contingencies - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>996447 - Disclosure - Subsequent Events - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureSubsequentEventsAdditionalInformationDetails</Role>
      <ShortName>Subsequent Events - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>106</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>996457 - Disclosure - Parent Company Only Condensed Financial Information - Summary of Consolidated Balance Sheets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureParentCompanyOnlyCondensedFinancialInformationSummaryOfConsolidatedBalanceSheetsDetails</Role>
      <ShortName>Parent Company Only Condensed Financial Information - Summary of Consolidated Balance Sheets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>107</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>996467 - Disclosure - Parent Company Only Condensed Financial Information - Summary of Condensed Statements of Comprehensive Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureParentCompanyOnlyCondensedFinancialInformationSummaryOfCondensedStatementsOfComprehensiveLossDetails</Role>
      <ShortName>Parent Company Only Condensed Financial Information - Summary of Condensed Statements of Comprehensive Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="ck0001979887-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>996487 - Disclosure - Parent Company Only Condensed Financial Information - Summary of Condensed Statements of Cash Flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xcharge.com/20251231/taxonomy/role/DisclosureParentCompanyOnlyCondensedFinancialInformationSummaryOfCondensedStatementsOfCashFlowsDetails</Role>
      <ShortName>Parent Company Only Condensed Financial Information - Summary of Condensed Statements of Cash Flows (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>109</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="20-F" isDefinitelyFs="true" isUsgaap="true" original="ck0001979887-20251231.htm">ck0001979887-20251231.htm</File>
    <File>ck0001979887-20251231.xsd</File>
  </InputFiles>
  <SupplementalFiles>
    <File>img218398555_0.gif</File>
    <File>img218398555_1.jpg</File>
    <File>img218398555_2.jpg</File>
    <File>img218398555_3.jpg</File>
    <File>img218398555_4.jpg</File>
    <File>img218398555_5.gif</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="3">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="1226">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="11">http://xbrl.sec.gov/cyd/2025</BaseTaxonomy>
    <BaseTaxonomy items="52">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="1">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>false</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>