I work in a warehouse and i can't take in anything like phones or pretty much anything but my keys. I just leave my phone in my truck while I'm working at night. It's been cold and I was wondering if anyone has a way I could keep the mod warm while i left it outside. I thought about buying a thermos and putting it inside or buying a small piece of fleece and making a pocket to keep it in. Not sure if either of these would work but i would rather not mess up my SVD or battery. Pretty sure I already messed up my phone battery like this. Any suggestions would be appreciated.