Warm & Safe Battery 7.4 Volt 5.2 Amp with Controller
7.4V 5200mAh Li-Ion Battery with built in 4 level controller, Digital Display & temperature control. To be used with the 7.4V Base Layer, Socks, Glove Liners or Gloves. Battery will not work in line with a heat-troller. If you need a battery, we suggest you order the Battery 7.4 Volt 5.2 Amp without Controller.If you do not have the charger, then you need to order that as well