Original 2.4V 500mAh Replacement Battery for CPH-518D BT-28443 BT18443 Home Phone Walkie Talkie 2.4v NIMH Rechargeable Battery Original 2.4V 500mAh Replacement Battery for CPH-518D BT-28443 BT18443 Home Phone Walkie Talkie 2.4v NIMH Rechargeable Battery. Sale price : $18.06 Category : Consumer Electronics