Rapid Rate charger for two way radio battery NNTN4851, NNTN4496, GP3688, EP450,CP150,CP20, CP040, CP140, CP160, CP180 etc For two way radio battery NNTN4851,NNTN4496,GP3688,EP450,CP150,CP20,CP040,CP140,CP160,CP180 etcfor NI-MH ,NI-Cd ONLY,NOT charge Li-Ion batteriesUSA , Eur ,UK or Au plug230/110 Volt.