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        <title>EG4 — northernarizona-windandsun</title>
        <link>https://forum.solar-electric.com/</link>
        <pubDate>Thu, 04 Jun 2026 02:14:04 +0000</pubDate>
        <language>en</language>
            <description>EG4 — northernarizona-windandsun</description>
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        <title>EG4 WallMount AW + Schneider XW Pro: External BMS or Custom/2-Stage?</title>
        <link>https://forum.solar-electric.com/discussion/358701/eg4-wallmount-aw-schneider-xw-pro-external-bms-or-custom-2-stage</link>
        <pubDate>Fri, 15 May 2026 20:11:16 +0000</pubDate>
        <category>Advanced Solar Electric Technical Forum</category>
        <dc:creator>DeadSparky</dc:creator>
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        <description><![CDATA[<p>I have an EG4 WallMount All Weather 51.2 V / 280 Ah battery on a Schneider XW Pro 6848 with InsightLocal.</p><p> </p><p>Current XW battery settings:<br /><br />Battery Type: Custom<br />Charge Cycle: 2 Stage<br />SOC Control Enable: Enabled<br />Capacity: 280 Ah<br />Bulk/Boost: 55.2 V<br />Absorb: 55.3 V<br />Low SOC Cut Out: 15%<br />High SOC Cut Out: 99%<br /><br />But the XW status page says:<br /><br />Battery Control Mode: Voltage Control<br /><br /><i>Question</i>: For EG4 WallMount AW + Schneider XW Pro, should this be left as <strong>Custom + 2 Stage + SOC Control Enabled</strong>, or changed to <strong>Li-Ion + External BMS + SOC Control Enabled</strong>?<br /><br /><i>Also</i>: is <strong>P03-SCH</strong> normal on older EG4 firmware? Current docs seem to say Schneider is <strong>P04-SCH</strong>, but mine says <strong>P03-SCH </strong>and the BMS data is clearly coming through.<br /><br />External BMS is available in the Charge Cycle dropdown. Li-Ion is available in Battery Type.<br /><br />Battery screen:<br /><br />RS485: P03-SCH<br />CAN: P07-LUX<br />BMS: Z02T13<br />LCD: V1.1.0<br />SOC: ~70%<br />Voltage: ~53.47 V<br />Cells: 3.339–3.342 V<br />Temps: 28–29 °C<br /><br />InsightLocal sees the BMS:<br /><br />BMS 0 online<br />Battery Type: SEMB_BMS<br />Associated to: House Battery Bank 1<br />SOC/SOH/voltage/current/temp all visible<br />Charge permitted: 1<br />Discharge permitted: 1<br />No BMS faults/warnings</p>]]>
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