GP GP30AAK2BML Cordless Phone Battery Ni-CD 2-1/2 AA w/Molex, 2.4 Volt, 350 mAh - Ultra Hi-Capacity - Replacement for GE BT-28, Panasonic P-03RM-F2G3, Radio Shack 23-290 Rechargeable Battery Replacement Battery for GE BT-28, Panasonic P-03RM-F2G3, Radio Shack 23-290 - Ni-CD 2-1/2 AA w/Molex, 2.4 Volt, 350 mAh. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark