Manufacturer: Sanyo Energy • RoHS/pb-free: Pb-free • Battery Type: Nickel Metal Hydride (NiMH) • Voltage - Rated: 4.8V • Capacity: 4100mAh • Battery Cell Size: 4/3 FA - Flat Top • Number of Cells: 4 • Structure: 2 Rows x 2 Cells Side to Side • Termination Style: Solder Tab • Rechargeability: Yes • Other PartNo: SY136-F022