Manufacturer: Sanyo Energy • RoHS/pb-free: Pb-free • Battery Type: Nickel Cadmium • Voltage - Rated: 6V • Capacity: 4000mAh • Battery Cell Size: D - Button Top • Number of Cells: 5 • Structure: 1 Row x 5 Cells Front to Back • Termination Style: Solder Tab • Rechargeability: Yes • Other PartNo: SY130-L051