abcGoodefg KSC-24 Rapid Quick Charger for Kenwood Battery 2 Way Radio KNB14 KNB15 KNB16 KNB17A KNB17B KNB20N KNB21N KNB22N TK2100 TK3100 TK272 TK372 TK373 TK280 TK380 TK290 TK390 TK480 TK481 KSC-24 Rapid Quick Charger for Kenwood Radio Battery. This charger has a built-in microprocessor that can detect change in voltage. It terminates in the fast charging process up to 90% and switches into trickle charge mode automatically until the batteries are full. It is automatic with reverse polarity protection and overcharge protection This KSC-24 charger compatible with Kenwood radio: TK2100, TK2101, TK2102, TK2107, TK3100, TK3101, TK3102, TK3107, TK5400, THK2AT, THK2E, THK2ET, THK4AT, THK4E, TK190, TK260, TK260G, TK270G, TK272, TK272G, TK278, TK278G, TK280, TK360, TK370, TK372, TK372G, TK373, TK378, TK378G, TK380, TK388, TK388G, TK390, TK480, TK481. And for Kenwood batteries: KNB-14, KNB-14A, KNB-15, KNB-15A, KNB-16, KNB-16A, KNB-17, KNB-17B, KNB-20N, KNB-21, KNB-21N, KNB-22, KNB-22N, PB-43, PB-43N, Ni-CD, Ni-MH