PowerDriver 3.6V 700mAh 2 two way radio Rechargeable Battery for Motorola 53615 KEBT-071 HKNN4002A HKNN4002B Talkabout 5950 T4800 T4900 Series T5000 T5320 T5400 T5500 T5600 T5700 T5800 T5900 T6500 FV500 Series (1) Compatible with original manufacturer equipments and chargers. High quality and reasonable price; More durable and more environmental. It has the function as same as original battery, but it is more of tangible benefits. Not compatible with AA alkaline-battery-based radios,If you have a two-way radio that runs on AA alkaline batteries, you'll need Motorola's rechargeable battery upgrade kit instead (model number 53614), which includes two batteries and AA-style adapters and powers up to two radios when radios are docked within the Ni-Cd charging unit. Voltage: 3.6V. Capacity: 700mAh. Chemistry: ni-mh.