Axiom Rechargeable Battery For V-Tech BT-18443 / BT-28443 / CPH-518D (3-Pack) Long-Lasting Axiom BT18443/BT28443 Ni-MH Rechargeable Battery Capacity (Power): 500mAh Brand New: Axiom Rechargeable Ni-MH Battery Package Includes: 3x Axiom BT18443/BT28443 Ni-MH Rechargeable Battery