... after confirm order 7.4V 2200mAh li ion battery packRechargeable battery pack specification Model No.TLH-2S1P-222Cell BrandPanasonicVoltage7. ... 1, High energy density2, High working voltage for single battery cells3, Pollution-free4, Long cycle life5, No memory ... overcurrent, anti-overload3.Compose Type : Injection Technology to make battery more stable4.Certifications : CE,UL,FCC, RoHS,ISO90015. ...