... confirm order 7.4V 2200mAh li ion battery packRechargeable battery pack specification Model No.TLH-2S1P-222Cell BrandPanasonicVoltage7 ... energy density2, High working voltage for single battery cells3, Pollution-free4, Long cycle life5, No memory effect6, Capacity, resistance ... , safe and reliable8, Factory price& High quality9, Good consistency, low self discharge10, Light weight, small sizeBattery ...