The Alpenheat Battery Pack Extension Cord is a 90cm extension charging cable for Alpenheat Comfort, Lithium and Trend foot warmers. It allows you to attach the battery pack to more convinient points at the chest or waist with the cable running down the inside of clothing. These are supplied as a pair allowing you to extend the charging cable on both insoles.
Please Note This will only fit Alpenheat Comfort, Lithium and Trend models