Manufacturer: Panasonic - BSG  •  RoHS/pb-free: Pb-free  •  Battery Type: Nickel Metal Hydride (NiMH)  •  Voltage - Rated: 10.8V  •  Capacity: 4200mAh  •  Battery Cell Size: 4/3 A - Flat Top  •  Number of Cells: 9  •  Structure: 1 Row x 9 Cells Side to Side  •  Termination Style: Solder Tab  •  Rechargeability: Yes  •  Other PartNo: HHR450AB17F9, HHR450AB21F9, P214-F091