<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-11-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001827871</issuerCik>
        <issuerName>Electriq Power Holdings, Inc.</issuerName>
        <issuerTradingSymbol>ELIQ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001180454</rptOwnerCik>
            <rptOwnerName>LAWRIE JOHN M</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>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

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        <nonDerivativeHolding>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>600000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>600000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By JMLElectric LL</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents the transfer of 1,562,500 shares of the Issuer's Common Stock (&quot;Common Stock&quot;) from the Reporting Person to JMLElectric LLC (&quot;JML&quot;), which is wholly owned by the Reporting Person.</footnote>
        <footnote id="F2">Represents restricted shares previously granted to the Reporting Person.</footnote>
        <footnote id="F3">The Reporting Person is the manager of JML and has sole voting and dispositive power over the shares held by JML.</footnote>
        <footnote id="F4">Pursuant to the Distribution Agreement, dated November 6, 2023 (the &quot;Distribution Agreement&quot;), among TLG Acquisition Founder LLC (the &quot;Sponsor&quot;), TLG Capital Partners, LLC (&quot;TLG Capital&quot;), Fenway 07 LLC and JML, the Sponsor made a pro rata distribution of 1,846,852 shares of Common Stock to its members.  As a result of such pro rata distribution, TLG Capital received 1,108,111 shares of Common Stock.</footnote>
        <footnote id="F5">The Reporting Person was the manager of the Sponsor and had sole voting and dispositive power over the shares held by Sponsor.</footnote>
        <footnote id="F6">The Reporting Person wholly owns TLG Capital and had sole voting and dispositive power over the shares held by TLG Capital.</footnote>
        <footnote id="F7">Pursuant to the Distribution Agreement, TLG Capital transferred 1,108,111 shares of Common Stock to JML.</footnote>
        <footnote id="F8">The Reporting Person is the manager of the general partner of TLG Fund I, LP (&quot;TLG Fund I&quot;), who has sole voting and dispositive power over the shares held by TLG Fund I. The Reporting Person disclaims beneficial ownership of all of the securities that are or may be beneficially owned by TLG Fund I or any of its affiliates except to the extent of his pecuniary interest therein. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the &quot;Exchange Act&quot;), this filing shall not be deemed an admission that the Reporting Person is, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of any equity securities held by TLG Fund I for purposes of Section 16 of the Exchange Act or otherwise.</footnote>
        <footnote id="F9">Represents the transfer of 675,000 shares of the Issuer's Series A Cumulative Redeemable Preferred Stock (&quot;Preferred Stock&quot;) from the Reporting Person to JML, which is wholly owned by the Reporting Person.</footnote>
        <footnote id="F10">Pursuant to the Distribution Agreement, the Sponsor made a pro rata distribution of 378,318 shares of Preferred Stock to its members.  As a result of such pro rata distribution, TLG Capital received 226,991 shares of Preferred Stock.</footnote>
        <footnote id="F11">Pursuant to the Distribution Agreement, TLG Capital transferred 226,991 shares of Preferred Stock to JML.</footnote>
        <footnote id="F12">Pursuant to the Distribution Agreement, the Sponsor made a pro rata distribution of 1,000,000 warrants to purchase shares of Common Stock at an exercise price of $6.57 per share (&quot;Warrants&quot;) to its members.  As a result of such pro rata distribution, TLG Capital received 600,000 Warrants.</footnote>
        <footnote id="F13">Pursuant to the Distribution Agreement, TLG Capital transferred 600,000 Warrants to JML.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John Michael Lawrie</signatureName>
        <signatureDate>2023-11-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
