Hi - I have a question on Mini BMS installed in my camper van.
I have a 25W heater on my LiFePO4 battery to keep it warm for winter operations, and it's reading 10 degC and 13V via bluetooth. No errors or warnings shown. The 10degC is backed up by my battery heater thermostat controller / thermistor.
The battery is connected to a Mini BMS via the circular connectors, +12V, GND. The load and charge control leads are connected to the remote inputs on two separate Battery Protect devices (one for charge, and one for discharge). The system works fine (charges and discharges) during normal temperatures.
The battery temperature and voltage seem fine, yet the Mini BMS "Temp or OVP" light is illuminated and the charge output to the Battery Protect is off. The ambient air is cold (~0 degC) right now. Does the Mini BMS also sense ambient and shut down charge on cold ambient???
I am stumped at the moment.
Thanks!