1、Automatic Charging: Automatic detection and identification of 12V and 24V batteries without manual selection. The CPU monitors the charging process intelligently. When fully charged, it automatically enters trickle charging, detects sulfate layer and acid layer, and adopts the latest pulse repair function to restore lost battery performance and extend battery life. You can select charging current and battery type. 2、Widely Used: Intelligent automatic recognition of 12/24V battery, quick charging, 12V 20Amp, 24V 10Amp ultra high power, deep cycle battery charging, does not damage the battery. Suitable for lithium, AGM, GEL, EFB, MF, Flooded battery, VRLA, SLA, wet battery. 3、Protecting and Maintenance: 7 level fast intelligent charger, temperature compensation, cooling system, over current, over voltage, short circuit and reverse connection protecting, no spark, refractory material. 4、Safe Charging: Intelligent charger, large LCD display of charging and battery status. Charge voltage and current, internal temperature, charge percentage, summer, winter mode, etc. When the battery is low, the maximum charging current can be up to 20A. 5、Easy to Use: The operation procedure is simple, just plug in the power, select the battery type and charging current, and charge the battery intelligently. Essential tools for your home and let you charge more secure.