Capacity: 2200mAh Standard Voltage: 3.7V Input: DC8.4V 600-1000 mAh Charging time: 3-4H Output Power: 7.5W Max Resistance Load: 4© ~ 100© Working time: 6-8 H Size: 22mm* 33mm* 70mm Battery net weight: 60g Design for : Electrical Heating Glove, Electrical Heating Shoe Insole, Electrical Heating Belt , support insulation products Series How to Use: Li-ION Battery is Humanization design. A pair of batteries can be charged by the same one chargers at the same time. The matched charger has two output, two charging circuit, two sets of indicator lights.It can simultaneously to the two Li-ion battery charging and constant voltage constant current charging.When the lithium battery pack is fully charged, lights in the charger will chang from red to green.