Product Features: Protections: short circuit/overload/overheat This feature is inaccessible for ordinary battery chargers It is widely used worldwide in auto after market for luxurious cars SOLARY's battery charger 14V50A is designed to provide consistent voltage and current output Stable, controllable output of voltage and current are essential to protect electronic equipment and important data in high-end cars like AUDI,BENZ,BMW, while charging car and entering data into car computer Product Specification: Input Voltage: 85-264V AC, 120-360V DC Input Frequency(HZ): 43-63 Cold Start: 12A/115V AC,25A/230V AC Power factor: >0.99/115V AC ,>0.95/230V AC Output Voltage(V): 14?.5 Over load protection: 105%~135%, Constant current protection,auto-recovery Setup, Rise, Hold up time:800ms,50ms,20ms at /230V AC