Uniden BT-0003 Cordless Phone Battery Ni-MH, 3.6 Volt, 900 mAh - Ultra Hi-Capacity - Replacement for Uniden BT-003, BBTY0545001, CLX series, TCX-400 Rechargeable Battery Replacement Battery for Uniden BT-003, BBTY0545001, CLX series, TCX-400 - Ni-MH, 3.6 Volt, 900 mAh. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark