Quote:
Originally Posted by Stubby79
Garden tractor battery or one of the high output SLA's from a jumper pack come to mind.
Any reasonable option(s) to keep the li-ion warm or warm them up before use?
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Keep the car plugged in overnight, or get a much larger battery, a heating element and go out to the car an hour or two before you leave (ever) and start warming it. I'm not sure if it's really even safe to freeze them at all. Maybe take the battery inside every time you park? A big enough battery to always have a heating element running?