6A smart charger, for both 6V and 12V vehicles. Recommended for START/STOP batteries as well as being compatible with lead, gel, calcium, AGM and EFB battery types. Keeps batteries in good condition without risk of overcharging. One button operation and large backlit digital display for ease of use as well as reverse polarity and short-circuit protection for safety. Connect and be sure that there won't be any over charging as a result of using the smart charger with the charger adjusting automatically to long-term maintenance mode when the vehicle's battery is full.