18650 li-ion battery Voltage: 3.7V Capacity: 2200mah Cycle life>500 times 18650 li-ion ... memory effect6, Capacity, resistance, Voltage, platform time consistency is good7, With short-circuit production function, safe and reliable8, Factory price& High ... are available4, We could design and produce the battery pack with plastic shell and assembly procession for customized configurations is available ...