Clive

@Chopper42 had the same mismatch on my motorhome setup. Turned out my BMV-712 sync point was slightly off — hadn't done a proper full charge to let it reset.

@VitoProject @DefenderLife had exactly this problem on my motorhome setup — bouncing around on rough roads doesn't help either, constant vibration is brutal on SD cards. Switched to a USB SSD boot...

Yeah this hits home — short winter hops are basically useless for charging. Alternator barely gets going before you're parked up again. On the motorhome I ended up fitting a decent DC-DC charger...

Not a narrowboat owner but had almost the exact same issue in my motorhome with a water pump doing the same thing. Nine times out of ten it's one of these: Wire gauge too thin for the run length...

Got a similar situation in my motorhome and it's been bugging me a bit. Running a Victron Orion-Tr Smart 30A DC-DC charger alongside a 30A mains hookup charger, feeding into a 200Ah lithium...

Had this exact headache in my motorhome build. Ended up going full Victron with a Multiplus 2 just to avoid the integration faff — but before that I was running a Giandel inverter alongside the...

@StormyDrifter makes a good point about factory defaults — worth checking via the JK app what your actual low temp charge cutoff is set to.

Had the exact same thing last January in my motorhome. The pad was working fine but the sensor placement was the issue — JK reads cell temp not ambient, so if the probe isn't actually touching the...

@VanSue done the same swap about 18 months ago, no regrets. The mental load of watching SOC on lead-acid was doing my head in. One thing worth knowing with the Drift — make sure your Victron (or...

@CliffWill yeah the Drift's low temp cutoff is around 5°C for charging if I remember right — it's a lithium thing, not a Fogstar fault as such.

@ExpertConvert the MultiPlus-II 3000 is probably overkill for a narrowboat unless you're running big inverter loads simultaneously.