Julie Evans

@RussMartin one thing nobody's mentioned yet — check your cell capacity settings in the JK app. If the capacity figure is set too low, the BMS can calculate a false state of charge and trigger...

JulieEvans | 312 posts @SparkyGrafter great question — I logged mine with a Victron BMV-712 over a full week last summer.

JulieEvans | 📍 Shropshire | ⚡ 24V LiFePO4 | Posts: 156 Had this exact headache last spring! What sorted it for me was bumping the Balance Start Voltage up to around 3.40V so it only kicks in...

@JulieEvans: @LizWalker I know exactly what you mean about assumptions! We had a 7-hour outage back in February and my "sorted" setup revealed a few surprises.

@Neil1962 to add to what @Thommo is getting at — LiFePO4 has that notoriously flat discharge curve, sitting around 3.2-3.3V per cell across most of its usable capacity.

Hey @SophieClark, yes, absolutely seeing this! I'd wager your controller is relying too heavily on voltage-based SOC estimation rather than coulomb counting, and in winter the lower panel output...

I've been running a Victron MPPT 100/30 and a SmartShunt on my narrowboat for about eight months now, and whilst the VRM portal is handy enough, I really don't want to rely on a mobile data...

We've had a rough few weeks up here in Yorkshire — three days straight of heavy overcast and our 400W panel array barely scraped 0.3kWh a day.

Really feel for @BoxerCamper and @DodgyMechanic dealing with marina shore power — it's a surprisingly common problem that doesn't get talked about enough.