This is OSAKA multi-functional automatic battery charger with input AC 170V-250V, adjustable output voltage:6V/8V/12V, rated charging current 15A and max power 150W. Equipped with real-time DC ampere meter, adjustable high-low charging current knob and independent voltage selector switch. Built-in overheat automatic power-off protection to avoid overcharging damage. Widely applicable for lead-acid batteries of car, motorcycle, marine equipment, generator and electric sprayer. Solid metal housing, durable and easy to operate for daily battery maintenance.