5 amp battery charger, battery maintenance and battery desulfator desulphator device The GENIUS5 is a 6-volt and 12-volt battery charger, battery maintenance unit and battery desulphator device with a rated capacity of 5 amp for lead-acid automotive batteries, moped and scooter batteries, marine batteries and deep cycle batteries, including flooded, gel-type, AGM and maintenance-free batteries and lithium-ion batteries. Similar to the G3500, but even better: 34% smaller, but 65% more power. And more user-friendly than ever before. - Precise charging - An integrated heat sensor detects the ambient temperature and changes the charging process to prevent overcharging in hot climate and undercharging in cold climate. - Charging flat batteries - Charges empty batteries up to 1 volt. - Simple to set up and easy to use - Plug in, connect to the battery, select a charging mode and charge the battery. A fully automatic, carefree charger for year-round use. - Battery recovery - Detects sulfation sulphation and acid stratification and restores power loss for stronger engine starts and longer battery life. - Compatible with all vehicle types - Loading and maintenance of car, motorcycle, scooter, lawn mower, off-road vehicle, ATV or quad, tractor, truck, SUV, boat, classic car.