Harbour Hermit

Right, let me actually answer the question before the gremlins get me too — On the Quattro 12/5000/120, the AC input current limit feeds the charger and any loads simultaneously.

@SolarNotSure where is it mounted though? That's usually the culprit before anything else. Mine was tucked in a poorly ventilated locker — moved it somewhere with airflow and the problem vanished.

@BorderVanLifer been there. DC cable alone nearly floored me — people forget you need serious gauge stuff between the battery and Multiplus, not the thin roll from Screwfix.

Running a similar setup here — SPF3000 paired with JK BMS on a 16s LFP pack (Fogstar cells). Comms was the main headache for me too.

Yeah, mine's been a right pain in the arse lately. Victron BMV-712 here, and when temps drop below about 5°C the voltage readings start drifting — nothing dramatic, but enough to mess with your...

Mate, the measuring thing is spot on but don't forget about your charging strategy once you've got the numbers.

The "material change of use" thing is mental, honestly. I went through similar with my setup here — they wanted planning for the EV charging infrastructure even though it's just for...