Intelligent digital displaycarousel automatic data display, can display / current / voltage / power easy to use: precise control of CPU temperature, intelligent charging, no adjustment needed, automatic charging when the battery is connected to the red power terminals to connect the battery positive (+) black with clamp for mounting the battery negative (-) Pure copper high frequency transformer: powerful charging Protection Multiple Overvoltage protection, reverse polarity protection (for positive and negative connection faults) Short circuit protection, overcurrent protection, overheating protection, overvoltage protection Applicability It is strictly prohibited to charge the lithium battery. Suitable for 12V-24V 6AH-150AH lead-acid batteries (AGM, GEL, MF, SLA, VRLA), can diagnose and repair battery problems of cars, trucks, motorcycles, mowers or boats, and ;extend battery life Voltage and power detection Connect the battery without connecting the power, it can display the remaining voltage of the battery. Keep track of your battery status and see if you need to charge. Intelligent charging, full charge automatic shutdown, repair button Cooling fan There is a cooling fan at the bottom of the charger, which can be used to extend the life of the charger in conjunction with an aluminum radiator. Features: TECHNICAL EXPLANATIONS: TYPESMART AND AUTOMATIC AC INPUT: 100-240V 50/60Hz Output voltage: auto 12v/24v Output current: 12v 8A and 24v 4A Voltage no-load output 8 13.8V Minimum voltage to start: 3.2W Size (L * W * H): 170 * 98 * 58mm