question

I'm experiencing a similar problem, but the system installation is still pretty new as I'm trying various VEconfigure parameter changes with the Multiplus. I have a topic open to address enabling "dynamic current limiter" enable at max "AC current limit" crashes the Multiplus this on the forum.

If you are expecting "AC input current limit" as the max value from Shore (like 30amps or 50amps) - wondering, have you tried disabling the "dynamic current limiter" parameter within the Multiplus general tab to see if Shore power at max current rating does not crash the Multiplus?

Thanx for the reply. I guess the current limiter was disabled, but I can check later, I turned the inverter off so I'm not able to access it right now remotely.

Actually I found out the battery is dead. I have lead-acid 550Ah 24V battery and while charging it was >27 volts and right after disabling charger it went to 18 volts.

So I guess what happened was the charger (regulator) started charging the dead battery in the morning, inverter switched to battery and there was not enough power, but I still do not understand why it cut out the shore power and did not restore the power from shore power.

I was draining 2.5kW off it, so I guess it wasn't too happy getting even several cycles a day when some clouds were passing by. I'm going to get a new battery, I just need the minimum set to utilize the produced energy, so I'm currently investigating two options, maximum drain is 100A 24V, so cheapest option might be 6S LiPo 8Ah 25C, but I haven't figured out balancing yet, it will keep the drain for only 4 minutes and it will be a fire hazard.

So I guess i will put together a LiFePo4 8 cell 120Ah pack and balance it with a Daligreen 200A Bms with seprate charge and discharge terminals.