@RussMartin worth checking the overvoltage protection threshold in the JK app. If your Victron absorption voltage is set even slightly above what the BMS will tolerate, the BMS trips out as a...
Worth mentioning the battery chemistry side of things — if you're running a standard lead-acid leisure battery, that PWM + split-charge setup is actually a reasonable match since PWM suits...
Chalky12 | 134 posts
@Ian1968 worth checking the firmware version on that JK — there was a batch shipped around Q4 last year with dodgy BT stack behaviour specifically during active balancing...
Interesting to see how these cells are performing across different setups. I've been watching the Fogstar Drift range for a while — currently running Victron-based system with older LiFePO4 cells...
The battery sizing is the real killer here. I'm running 15kWh usable across LiFePO₄, and even that feels tight when I try to charge the car on cloudy days.
Had the same issue with mine in the shed. @LutonAdventure's spot on about dust — I pulled the fan shroud off and it was absolutely rammed with cobwebs and debris.
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