... , GCA 6-12V/20A, GCA 6-12V/30A, GCA 6-24V/5A, GCA 6-24V/10A, GCA 6-24V/20A, GCA 6-24V/30A, GCA 6 ... -36V/5A, GCA 6-36V/10A, GCA 6-36V/20A ... modes: manual switching for GCAFrequency: 50Hz -60HzCharging voltage: 6V, 12V, 24V, 36V, 48V, 72VAmbient temperature: 10±40°COverall temperature rise: ≤60 ...