Product Description Give yourself up to 10 hours of extra battery life with the 6500mAh Gobi Heat lithium-ion battery.Works with all Gobi HeatA(R) Jackets, Hoodies, and Vests. Replacement battery, 6500 mAh, 7.4v, hard shell at Everest Browse all Everest deals $59.00 In Stock at Everest Buy Now at Everest Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Gobi Heat Gobi Heat