1.The brand 6 amp battery charger: If your battery is low or low, our car battery charger detects the sulphation and acid layering of the battery and uses a highquality highfrequency transformer made of pure copper, a precise CPU control system, motor protection and a design of heat dissipation function to achieve the car battery charge and maintenance of car batteries. 2.Multifunctional protection: builtin circuit protection. It has protection circuits such as overcurrent protection, short circuit protection, reverse polarity protection, overheating protection, overvoltage protection and undervoltage protection. 3.Highly efficient pulse repair: when your battery is almost empty, it is sulphated. This device uses the latest pulse repair function to restore lost battery power for stronger engine start and longer battery life. 4.Wide application: the 6 amp battery charger maintains and charges all types of 4 to 100 Ah 12 V AGM, GEL, SLA, wet and calcium deep cycle car batteries or ship batteries. Perfect for keeping your vehicles fully charged and maintained during yearround battery maintenance or long term storage.