Panasonic KX-TG2336 Cordless Phone Battery 3.6 Volt, Ni-MH 850mAh - Replacement For PANASONIC HHR-P104 Replaces PANASONIC HHR-P104 3.6V 850mAh Rechargeable Ni-MH Battery Empire model CPH-496 High Quality - Long Lasting Cordless Phone Battery