I have my solar system with LFP 24v battery at an of grid cabin that, in the winter, can get to -25c during cold snaps. I'm using an overkill BMS so I have low temp cutoff but my question is how have others solved the issue of wanting the system to keep running in low temps?
While the place warms up relatively quickly when I'm there, it could go a couple of weeks without heat and at cold temps. I've seen Will's tip of using RV tank hearing pads, which at first seems like an ideal solution, but every pads I find seem to have at least one review where the pad sorted out and could have started a fire so I'm less keen.
One option is to simply only have it charging when I'm there and the battery is warmed up but that's hardly ideal with solar. I'd rather the system charge itself when I'm away.
Anyone already solved this for themselves?
While the place warms up relatively quickly when I'm there, it could go a couple of weeks without heat and at cold temps. I've seen Will's tip of using RV tank hearing pads, which at first seems like an ideal solution, but every pads I find seem to have at least one review where the pad sorted out and could have started a fire so I'm less keen.
One option is to simply only have it charging when I'm there and the battery is warmed up but that's hardly ideal with solar. I'd rather the system charge itself when I'm away.
Anyone already solved this for themselves?