Motorola SNN4135A Cordless Phone Battery Ni-MH 3/320/B (clover), 3.6 Volt, 320 mAh - Ultra Hi-Capacity - Replacement for Rechargeable Battery Replacement Battery for Rechargeable - Ni-MH 3/320/B (clover), 3.6 Volt, 320 mAh. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark