[The All New 6-Amp Battery Charger]If your battery is weak or low, our battery charger automotive detects battery sulfation and acid stratification, using high-quality pure copper high-frequency transformer, precise CPU control system, motor protection and heat dissipation function design, to achieve the best car battery charging and car battery maintenance. [Multi-functional safety protection]Built-in circuit protection. It has protection circuits such as overcurrent protection, short circuit protection, reverse connection protection, overheat protection, overvoltage protection, and Undervoltage protection. [High efficiency pulse repair]If your battery drains to empty, it be sulfated. This device take newest pulse repair function to restore lost battery performance for stronger engine starts and extended battery life. [Wide application]6 amp battery charger maintains and charges all type of , GEL, SLA, Flooded(WET), calcium type deep cycle automotive or marine 4Ah-100Ah 12V battery.