1)3.7V 18650 li-ion battery 2)used for led torch,and games,toys 3)with safe protection circuit 4)No memory effect ... SpecificationsBattery capacity: 3200 mAhNominal voltage: 3.7 VThe battery resistance: more than 80 m ΩDischarge the ... °C ~ 45 °CStore 90 days:-20 °C ~ 35 °C Supply 3.7V 18650 Li-ion batteries,industial packing,3000mAh