Replacement Battery for AT&T BT8001 / BT8000 / BT8300  / BT184342 / BT284342 / 89-1335-00 / 89-1344-01 / BATT-6010 / CPH-515D (Bulk Packaging) Replacement Battery for AT&T BT8001 / BT8000 / BT8300 / BT184342 / BT284342 / 89-1335-00 / 89-1344-01 / BATT-6010 / CPH-515D (Bulk Packaging) Voltage: 2.4V - Capacity: 550mAh - Composition: Ni-MH Replaces Batteries: BT8001 / BT8000 / BT8300 / BT18433 / BT28433 / BT184342 / BT284342 / 89-1335-00 / 89-1344-01 / BATT-6010 / CPH-515D Compatible with the Following AT&T Cordless Telephones: CL80109 CL81109 CL81209 CL81309 CL82109 CL82209 CL82309 CL82300 CL82359 CL82409 CL82509 CL82659 CL82859 CL84100 CL84109 CL84209 EL51109 EL51209 EL52109 EL52209 EL52300 EL52309 EL52419 SL81108 SL82118 SL81208 SL82208 SL82218 SL82308 SL82318 SL82408 SL82418 SL82518 SL82558 SL82618 SL82658 SL80108 TL92278 TL92328 TL92378 SB67030 SB67040