Hey guys - Just wanted to update the thread concerning my operation of the heating system. Last week my coach was exposed to temperatures of 14 degrees, yet the heater kept the battery and BMS temperature and compartment right at 41 degrees. Lithium battery manufactures recommend that lithium not be stored in extreme lower temperatures.
The heater is primarily designed for when the coach is parked to prevent the BMS from shutting down the 12 volt power system, allowing the battery to be charged in colder weather where otherwise it would not be possible.
This heater system serves a few other purposes since I store some of my drones and their lithium batteries in this same compartment. It’s important to keep the drones IMU and lithium batteries within proper temperatures as well.
The heaters secondary use is for traveling in cold weather where the battery that powers the RV and heater circuit is charged by the engine alternator.
Thanks Mike
