Vtech LS6425-3 Cordless Phone Battery Ni-MH, 2.4 Volt, 500 mAh - Ultra Hi-Capacity - Replacement for VTECH 89-1348-01-00, BT183482/BT283482 Rechargeable Batteries Synergy Digital Replacement Battery for VTECH 89-1348-01-00, BT183482/BT283482 Ni-MH, 2.4 Volt, 500 mAh. Made with high quality Japanese cells. 100% compatible with your OEM battery - 3 year warranty. Synergy Digital is a Registered Trademark