Do you connect solar panels to one or both AC500s (master and slave)?
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Does each AC500 manage the SOC of only the batteries connected to each unit, or is there some overall battery management acting as one in split phase configuration.
@St8kout
You can charge one AC500 with solar, or charge two at the same time. It will not affect system stability. If conditions allow, charging two units will result in a more balanced power distribution. Each AC500 will individually monitor and control the SOC of the connected battery.