... chemistry; high capacity; 12 months' warranty; New product for KNB17 two way radio battery packTwo-way radio batteryChemistry: NI-MHVoltage: 7.2Capacity: 2100 mAHOEM ... , TK290, TK380, TK390, TK480, TK481 Replacement battery for KNB17A two way radio. This battery is compatible with TK280, TK290, TK380, TK390, TK480, TK481 ...