I've seen lots of threads about low temperature protection for LiFESO4 cells. Most seem to just be disconnecting the battery below 32F/0C. But LiFESO4 can still discharge just fine usually down to -4F/-20C. Is there any system that takes advantage of this? For instance I would like to show up to my cabin in the winter and turn on my inverter and use my batteries below freezing but be ensured that the batteries will not start charging (generator or solar) until the cabin and batteries have warmed up. Does anyone make a temperature sensor reverse current controller? I'm looking at all-in-one systems but I don't mind putting an extra component inline if it does what I want it to.