ActionHeat 3.7V 2200maH Rechargeable Battery Kit for Socks

The ActionHeat 3V batteries are super slim, sleek, and powerful. They are designed specifically for ActionHeat socks. They fit perfectly into the battery pocket on the top of the socks.Specifications:• Lithium-Polymer Core• Battery Voltage: 3-Volt/1 amp output max• Charging Time: 3-4+ hoursBattery Care:• It is important to maintain at least 25% of your battery power when not in use. Failure to do so may result in performance problems and reduced battery life• Disconnect the battery packs from the socks when not in use• Do not wash batteriesCompatible with:• ActionHeat 3.7V Wool Heated Socks• ActionHeat 3.7V Cotton Heated Socks• ActionHeat AA Wool Heated Socks• ActionHeat AA Cotton Heated Socks• Sock Battery Set Includes:• (2) 3.7V 2200maH Rechargeable Batteries• (1) Charger Wire