... : 50Hz-60Hz GCA 6-12V/5A, GCA 6-12V/10A, GCA 6-12V/20A, GCA 6-12V/30A, GCA 6-24V ... widely applied to the charging of batteries in various motor vehicles, tractors, diesel engine sets, shipping generator/electric ... manual switching for GCAFrequency: 50Hz -60HzCharging voltage: 6V, 12V, 24V, 36V, 48V, 72VAmbient temperature: 10±40°COverall ... of charging voltage: GCA exchangeable GCA battery Charger 12V/10A