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