One of the things I was going to get at Wally World was a small space heater for the lithium batteries, because I know they aren't supposed to tolerate cold very well, but since we are here at Flying J, and I don't want to unhook the toad, I just plugged in my 75 watt drop light and put it in the compartment. We went to bed, and the temps got down to 9 degrees. BRRR!!! I set my alarm for 6, to get an early start, and when I was awakened by my iphone, i noticed it was still warm, but dark. No lights...