V Tech 402420 Cordless Phone Battery Ni-MH, 3.6 Volt, 1300 mAh - Ultra Hi-Capacity - Replacement for Panasonic P-P592, Type 92 Rechargeable Battery Replacement Battery for Panasonic P-P592, Type 92 - Ni-MH, 3.6 Volt, 1300 mAh. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark