Motorola 53615 Talkabout Rechargeable Battery Pack Easy to carry and easy to change Minimize your downtime due to a depleted battery Not compatible with AA alkaline-battery-based radios Don't get caught without power, have a spare, rechargeable NiMH battery on hand. This helps reduce downtime due to a depleted battery Compatible with: MS, MT, MR, T9680R, MJ, MC, MD series talkabout radios