Designed for use with ThermaCELL heated insoles
Batteries recharge in 4 hrs. or less; lasts 5 hrs.
Operates via a USB or wall outlet
Can also be used as a protective carrying case
Don't let dead batteries give you cold feet! This two-battery pack extends the run time of your ThermaCELL ProFLEX heated insoles for shoes or boots. Batteries recharge in 4 hours or less and last up to 5 hours per charge. The charging system operates via a USB port or wall outlet, and can also be unplugged for use as a protective carrying case for the batteries. One-year warranty.