1、3-stage full automatic battery charge device, constant voltage and constant current, automatic stop when fully charged, preventing battery overcharge. 2、With multiple protections of over-voltage, over-temperature, overcharge, short circuit, reverse connection, overcurrent, low current, etc. safer for use. 3、It will automatically detect the outdoor temperature, starts the winter or summer mode, and choose the appropriate charging voltage according to the temperature. 4、With a LCD high-clear digital display, which can real-time display of voltage, current, temperature, battery capacity, etc., easy to read. 5、Equipped with a silent cooling fan and an aluminum radiator, it is not easy to get hot after long-term use, which greatly prolongs the service time of the chargers. 6、Premium ABS housing with nice durability, insulation and high temperature resistant. With antifreeze soft copper core wire and alligator clips, it is sturdy and practical. 7、It is suitable for 12 V motorcycle, car, off-road vehicle, SUV, drybattery, wet battery, leadacid, maintenance-free battery (lithium battery is forbidden to charge).