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        <issuerName>Electriq Power Holdings, Inc.</issuerName>
        <issuerTradingSymbol>ELIQ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001827870</rptOwnerCik>
            <rptOwnerName>TLG Acquisition Founder LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ELECTRIQ POWER HOLDINGS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>625 NORTH FLAGLER DRIVE, SUITE 1003</rptOwnerStreet2>
            <rptOwnerCity>WEST PALM BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33401</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
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            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
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    </reportingOwner>

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                <value>2028-07-31</value>
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    <footnotes>
        <footnote id="F1">On July 31, 2023, TLG Acquisition Founder LLC (the &quot;Sponsor&quot;) received 756,635 shares of Class A Common Stock of the Issuer (&quot;Class A Common Stock&quot;) upon the conversion of working capital loans in connection with the completion of the Issuer's business combination with Electriq Power, Inc. (&quot;Electriq&quot;).</footnote>
        <footnote id="F2">Shares of Class F Common Stock of the Issuer (&quot;Class F Common Stock&quot;) were convertible into shares of Class A Common Stock as described under the heading &quot;Description of Securities-Founder Shares&quot; in the Issuer's registration statement on Form S-1 (File No. 333-252032) and the shares of Class F Common Stock had no expiration date.</footnote>
        <footnote id="F3">On July 31, 2023, in connection with the closing of the Issuer's business combination, the Sponsor forfeited and surrendered for no consideration 3,270,652 shares of Class F Common Stock pursuant to the terms of the Sponsor Agreement, dated November 13, 2022 (as amended on June 8, 2023), by and among the Issuer, the Sponsor, TLG Fund I, LP, Electriq and the other parties thereto.</footnote>
        <footnote id="F4">The Issuer consummated its initial Business Combination on July 31, 2023, whereby, among other things, the shares of Class F Common Stock converted into shares of Class A Common Stock.</footnote>
        <footnote id="F5">On July 31, 2023, the Sponsor received 1,000,000 warrants to purchase shares of Class A Common Stock for $6.57 per share upon the conversion of $1,500,000 of working capital loans in connection with the completion of the Business Combination.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John Michael Lawrie, as manager</signatureName>
        <signatureDate>2023-08-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
