3-stage IUOU charge automatic chargers, independent outlets to charge 3 banks at the same time- full power battery.Technical data:- Aluminium frame- Universal supply: 90/265VAC - 90/400 VDC - 45/65 Hz- Analogic ammeter- Internal temperature sensors, forced ventilation- Protections against short circuit, overheating- Acid-GEL-AGM battery selection.