Available September 2016
Keep the heat happening with additional ProFLEX Heavy Duty insole extended life batteries. These spare units allow you to have extra batteries charged and ready to go when and wherever you need them. Simply reload batteries without removing the insoles from your boots or shoes.
The ProFLEX HD insole extended life battery pack (sold separately) includes a wall charger (with a USB cable) and two cushioned battery packs. Extend heating without removing insoles from shoes or boots. Batteries recharge in 2 hours or less and last up to 8.5 hours per charge. The charging system can also be unplugged and used as a protective carrying case for the batteries.