Gobi Heat 7.4V Wall ChargerSpare wall charger for your Gobi Heat 4400 mAh or 6700 mAh battery.Features:7.4VWorks with 4.0mm Gobi Heat 4400 mAh or 6700 mAh batteries onlyBattery sold separately Gobi Heat Wall Charger for 7.4V 4.0mm DC Battery - Jacket, Hoodie, Vest Battery Charger