Heating lipos

[Peter Wibe Enevoldsen]

I know some people will think thats its unsafe. The problem is where i am in sweden its about degrees 10c out most days my lipos arent liking it.
Im looking for tips:
safe temps
Heating metods
If its a bad idear

Im just trying to learn and have some fun boating even as it gets colder

 

[Mark Anderson]

I put mine in a cooler with a heating pad (the kind for sore muscles) set on medium. Older heating pads did not have a safety timer built in so they stay on new ones turn off after a while.