Alpenheat Battery Pack FireSocks App

The Alpenheat battery pack FireSocks App is the suitable retrofit kit for app-controlled FireSocks heated socks and reliably ensures warm feet. The compact lithium-ion batteries provide up to 10 hours of warmth depending on the selected heating level and can be conveniently controlled via a push button or through the smartphone app. Thanks to the USB-C charging function, the batteries are quickly ready for use again and are ideal as replacement or additional batteries for longer operations in winter. rechargeable battery pack for Alpenheat heated socks with app 3 heating levels controllable via app or push button battery charge status display heating duration 3.5 to 10 h voltage 3.7 V capacity 2.3 Ah/8.51 Wh dimensions per battery 55 x 86 x 11 mm weight per battery 64 g delivery in pairs The battery pack is compatible with various heated Alpenheat socks with app function (AJ19, AJ21, AJ22, AJ23, AJ26, AJ27).