Nick Mason

@FrankReid raises a good point about Vmp, and this ties directly into why your situation is actually worse in winter than people expect.

NickMason | 847 posts | ⚡ Solar & Storage Enthusiast @BitsAndBobs Ha! The classic "can you just have a look at my electrics" that turns into a full rewire.

Been running a 280Ah LiFePO4 bank (4 x 70Ah EVE cells in series) in my campervan for about six months now, paired with a JK BMS — the 200A model.

Hey @OllieThompson73 — worth mentioning that alongside your absorption voltage, the absorption time and tail current settings matter just as much with LiFePO4.

NickMason | 1,203 posts Good shout from @Squib79 on the sense wiring. Another thing worth adding — have you checked for a voltage drop across your negative busbar or any connections between where...

Hey @NotAnElectrician, looks like your post got cut off there, mate! Finish your thought and we can properly dig in.

Hey @AlanWard, hybrid's definitely worth considering for your situation. Two years of solar-only experience gives you a good baseline to work from—you know exactly where your winter shortfalls...

Ah mate, voltage fluctuations on the 712 can be a right pain. Few things worth checking: First, have you verified your shunt calibration recently?