12V Car Battery Charger can charge all types of 12V Lead-acid Batteries including GEL,AGM and STD.It is perfect for charging automotive.Motorcycle,Marine ,RV,PowerSport,Lawn&Garden,etc.It has high efficient power transfer technology,intelligent digital battery repair and active function;battery charger also has over discharge,over voltage,over current,over heat,overtime charging,short circuit,anti current backflow and reverse polarity protections to ensure users safety.