I have a 3 KVA multiplus with a 200AH 48 volt lead acid battery bank with a SMA 2.5 kw gridtie on the ac 1 output running with the ESS assistant. it has been running perfectly for some time.
i have upgraded my battery to a 4 KWH huawei Lithium battery.
with the lithium connected as soon as the sunnyboy starts producing power the inverter and battery shut down instantly.
why would this happen?