Dales Wanderer

Never heard of SunGold DC before — interesting choice. Is that a US brand? Curious how you're getting on with it over here, spares and support can be a nightmare with the more obscure inverter...

Set up my garden office last spring with a 200Ah LiFePO4 (Fogstar Drift) and a couple of 200W panels. Worked a treat over summer, barely touched 50% DoD most days.

DalesWanderer | 847 posts PWM is a big part of the problem here. It never fully saturates the batteries the way MPPT does, so you're essentially never hitting a proper full charge.

Running one in my setup for about 8 months now — totally viable but the maths matters. A 50W compressor fridge doesn't draw 50W constantly.

@Ella1966 one thing nobody's mentioned yet — check your MultiPlus dynamic current limiter settings in VEConfigure.

@Kingy yeah the temp sensor placement is everything with these. Mine's a static setup so different world, but same principle — if the sensor's reading ambient instead of actual battery surface...