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I am having an issue I can't quite figure out. I have (2) Multiplus II 48v/3kva in a split-phase 120v/240v arrangement. I have a temporary battery bank installed consisting of (4) 12v 100ah AGM batteries wired in series for 48v. I have set the system to "Charge Only" with a 50A grid current limit so I am effectively bypassing the inverters. When drawing more than 3k watts per leg from the grid, the battery bank voltage spikes over 60v.
Why is this happening?
Check your dvcc max battery voltage setting. And your essential settings. Please add some screen shots of your master inverter setup . Remove any bms system settings. In your assistants.
I am presuming you have removed a set of lfp batteries and add a set of agm batteries.
Also as much info about your setup and what's connected.
VE Bus voltage can be totally different to battery voltage especially if it is processing alot of power. Even with it "bypassed" the power is still pouring through the bus.
If you had a shunt you would be able to compare the two different readings.
