<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: Weichai Power Hong Kong International Development Co., Ltd -->
          <cik>0002095418</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001453015</issuerCik>
      <issuerName>Ballard Power Systems Inc.</issuerName>
      <secFileNumber>000-53543</secFileNumber>
      <issuerAddress>
        <com:street1>9000 Glenlyon Parkway</com:street1>
        <com:city>Burnaby</com:city>
        <com:stateOrCountry>A1</com:stateOrCountry>
        <com:zipCode>V5J 5J8</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>604-454-0900</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Weichai Power Hong Kong International Development Co., Limited</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>10% Shareholder</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>CLSA Limited</name>
        <address>
          <com:street1>18/F, One Pacific Place</com:street1>
          <com:city>88 Queensway</com:city>
          <com:stateOrCountry>K3</com:stateOrCountry>
          <com:zipCode>0000</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>15000000</noOfUnitsSold>
      <aggregateMarketValue>57150000.00</aggregateMarketValue>
      <noOfUnitsOutstanding>301475849</noOfUnitsOutstanding>
      <approxSaleDate>07/06/2026</approxSaleDate>
      <securitiesExchangeName>Nasdaq Global Market</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <acquiredDate>11/13/2018</acquiredDate>
      <natureOfAcquisitionTransaction>Investment</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>46131712</amountOfSecuritiesAcquired>
      <paymentDate>11/13/2018</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Weichai Power Hong Kong International Development Co., Limited</name>
        <address>
          <com:street1>2102-03 China Merchants Twr, Shun</com:street1>
          <com:street2>Tak Ctr,168-200 Connaught Rd</com:street2>
          <com:city>Central</com:city>
          <com:stateOrCountry>K3</com:stateOrCountry>
          <com:zipCode>00000</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <saleDate>05/08/2026</saleDate>
      <amountOfSecuritiesSold>2111111</amountOfSecuritiesSold>
      <grossProceeds>9023310.64</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Weichai Power Hong Kong International Development Co., Limited</name>
        <address>
          <com:street1>2102-03 China Merchants Twr, Shun</com:street1>
          <com:street2>Tak Ctr,168-200 Connaught Rd</com:street2>
          <com:city>Central</com:city>
          <com:stateOrCountry>K3</com:stateOrCountry>
          <com:zipCode>00000</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <saleDate>05/11/2026</saleDate>
      <amountOfSecuritiesSold>2399353</amountOfSecuritiesSold>
      <grossProceeds>10021377.68</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Weichai Power Hong Kong International Development Co., Limited</name>
        <address>
          <com:street1>2102-03 China Merchants Twr, Shun</com:street1>
          <com:street2>Tak Ctr,168-200 Connaught Rd</com:street2>
          <com:city>Central</com:city>
          <com:stateOrCountry>K3</com:stateOrCountry>
          <com:zipCode>00000</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <saleDate>05/12/2026</saleDate>
      <amountOfSecuritiesSold>2368422</amountOfSecuritiesSold>
      <grossProceeds>9986925.05</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Weichai Power Hong Kong International Development Co., Limited</name>
        <address>
          <com:street1>2102-03 China Merchants Twr, Shun</com:street1>
          <com:street2>Tak Ctr,168-200 Connaught Rd</com:street2>
          <com:city>Central</com:city>
          <com:stateOrCountry>K3</com:stateOrCountry>
          <com:zipCode>00000</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <saleDate>05/13/2026</saleDate>
      <amountOfSecuritiesSold>3330000</amountOfSecuritiesSold>
      <grossProceeds>13894425.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Weichai Power Hong Kong International Development Co., Limited</name>
        <address>
          <com:street1>2102-03 China Merchants Twr, Shun</com:street1>
          <com:street2>Tak Ctr,168-200 Connaught Rd</com:street2>
          <com:city>Central</com:city>
          <com:stateOrCountry>K3</com:stateOrCountry>
          <com:zipCode>00000</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <saleDate>05/14/2026</saleDate>
      <amountOfSecuritiesSold>923000</amountOfSecuritiesSold>
      <grossProceeds>3802575.40</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Weichai Power Hong Kong International Development Co., Limited</name>
        <address>
          <com:street1>2102-03 China Merchants Twr, Shun</com:street1>
          <com:street2>Tak Ctr,168-200 Connaught Rd</com:street2>
          <com:city>Central</com:city>
          <com:stateOrCountry>K3</com:stateOrCountry>
          <com:zipCode>00000</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <saleDate>05/15/2026</saleDate>
      <amountOfSecuritiesSold>3897000</amountOfSecuritiesSold>
      <grossProceeds>15856113.60</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>* As of July 2, 2026.** As of March 31, 2026, the Issuer has 301,475,849 Common Shares outstanding, as reported on the Issuer's First Quarter 2026 Interim Financial Statements, attached as Exhibit 99.1 to the Form 6-K filed by the Issuer with the Securities and Exchange Commission on May 5, 2026.</remarks>
    <noticeSignature>
      <noticeDate>07/06/2026</noticeDate>
      <signature>/s/ Yunyun HU</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
