The ThermaCELL Proflex Heated Insoles Extra Battery Pack is for the ThermaCELL ProFlex Heated Insoles. Keep the heat going with these extra battery units that will ensure you are charged and ready to go on cold days. Simply reload batteries without even removing the insoles from your boots or shoes.
- Compatible with ThermaCELL ProFlex Heated Insoles
- Change batteries without removing the insoles for your boots
- Charge in 4 hours or less
- Lasts for up to 5 hours