Panasonic KX-TG2431W Cordless Phone Battery 2.4 Volt, Ni-MH 830mAh - Replacement For PANASONIC HHR-P105 Cordless Phone Battery Replacement Battery for PANASONIC HHR-P105 - Ni-MH, 2.4 Volt, 830 mAh. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark