Electric Foot Warmers Battery 3v 6800mAh (AC211)  

The AC11NC-3V6800 is 3.7v 6800mAh version of AC211 li ion rechargeable battery pack. Application: heated clothing, heat holder socks, hot socks, rechargeable heated socks, battery powered socks.  This NC battery has no adjustable setting, it is good for heated socks like ActionHeat 3.7V Rechargeable Battery Heated Socks. With 6800mAh~7000mAh in most compact size it will allow you to Stay Warmer & Enjoy Outdoor Winter Activities Longer Than Ever Before. Other Application: heated womens coats, heated silver shoes, electric heated coats, heating winter jacket, battery heated socks.  Battery Case ID: AC211NC-3V6800 Cell inside: 2pcs li ion 18650 cell  Capacity: 3.7v 6800mAh Input:  4.2v 2.5A max Output: 4.2v~3V 2.5A max, Constant DC. Dimension: 41.5*73.5*21.5mm  Input/Ouput Terminal: 3.5*1.35mm coax type,  Weight: 118g  Function Code: NC The AC11NC-3V6800 is made of Samsung/LG/Panasonic 3400mAh/3500mAh 18650 b…