... warranty after ship 14.8V 4400mAh lithium ion battery Rechargeable battery pack specification Model No.TLH-2S1P-222Cell BrandPanasonicVoltage14 ... Advantages:1, High energy density2, High working voltage for single battery cells3, Pollution-free4, Long cycle life5, No ... , anti-overload3.Compose Type : Injection Technology to make battery more stable4.Certifications : CE,UL,FCC, RoHS,ISO90015. ...