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, Power Sport, 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.