Replacement Kenwood 7.2v 1800mah Ni-mh Two-way Radio Battery for Kenwood Knb-16A Knb-17A Knb-21A Tk-390 TK-480 TK-481 TK-5400, 7.2 Volt 1.8 Ah Ni-MH Brand new and high quality 100% OEM Compatible Provides excellent discharge characteristic Please ensure the product that you are going to buy fits the brand, model and part number of your device.