I have 2 AC300’s (4 batteries each) set up on split phase.
The batteries on the slave AC300 are all being dispensed equally,but the master Ac300 uses one of the batteries down to 10% before using one of the other ones. They are all connected exactly alike.
Any idea what could be going on? I’ve had them for a couple of months now and this just started.

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@Jmac352 Could you please provide me with the SN of the AC300 and the firmware version of all batteries?

I am having the same issues.
Almost nonstop BMS Communication errors