Smart Car Battery Charger: The car charger uses 9-stage automatic charging, including battery detection, desulfation, trickle charging, etc., to achieve the best and most efficient charge. The repair mode is used to repair and activate old and weak batteries. Wide Applications: The car battery charger is only for 12V/24V LiFePo4 batteries, lithium batteries, and lead-acid batteries (AGM, calcium, GEL, MF, EFB, SLA, VRLA, WET, etc.). It is widely used to efficiently and safely charge cars, motorcycles, boats, lawn mowers, etc. Multiple Safety Protection: Spark protection, short circuit protection, reverse protection, undervoltage protection, overvoltage protection, overcurrent protection, overheat protection. Flame-retardant material shell. Sturdy power cord and alligator clip to ensure your safety. Easy to Use: The 12V/24V charger can switch 4 charging modes with one button and automatically detect the battery type. With LCD screen, display battery voltage, charging current, charging