HardKorr's 4A AC Chargers make charging your batteries from mains/AC power easy. Suitable for charging both 6V and 12V batteries ranging from 4-120Ah, the charger is ideal for use on deep-cycle batteries such as those found in, caravans, 4×4 dual battery setups, or other recreational vehicles. Simply plug the unit into any available mains AC port and connect the other end to the battery to begin charging. The charger will display the battery voltage and a state of charge display via the in-built LCD screen while connected to your battery. Also on the front of the charger is a function button that allows you to change between a dedicated 12V standard lead acid, 12V LiFePO4, 12V maintenance, 12V reconditioning, and a 6V standard charge setting. The charger also has a range of inbuilt safety features including short circuit, overload, reverse polarity, overcharge, and over-temperature protections. The HardKorr Guarantee All Hardkorr products are manufactured using the highest quality materials. They are confident that they are the most durable in the market and will give you many years of reliable service.