Fully automatic microprocessor controlled battery charger and maintainer, featuring patented Speed Charge technology. Charges the battery up to three times faster than conventional battery chargers without damaging the battery. Heavy-duty sturdy case with no-nonsense controls and LED status indicators. Battery presets include conventional lead acid, calcium, AGM/GEL, leisure and stop/start batteries. Fully automatic float mode ensures the battery is kept fully charged, maintained and ready to use.