| Model No | CTB51 | | Description | Cordless Telephone Battery | | Application | Cordless Telephone | | Replacement for: | | Panasonic | HHR-P401, HHR-P401A, KX-TG2400, KX-TG2500ALB, KX-TG2550, KX-TG2570ALS, PQHHR115AA31 | | | Chemistry | Nickel Metal Hydride (NiMH) | | Voltage | 3.6V | | Brand | Master (this battery is a compatible alternative to that of the original brand) | | Width | 14.5mm | | Height | 44mm | | Length/Breadth/Depth | 44mm | | Weight | 72g | |