silent cooling fan: Greatly extend the life of the charger with an aluminum radiator anti- freeze pure copper softcore wire and full wrapped alligator clip; cold and frost resistant and universal wide voltage intelligent digital display: Display data automatic carousel, can display temperature / current / voltage / power simple operation: Precise control of the CPU, intelligent charging, no need for adjustment, automatic charging when the battery is plugged in pure copper high-frequency transformer: Powerful power and fast charging the detection voltage and power: Connect the battery without plugging in the power, it can display the battery residual voltage. Keep track of your battery status and see if you need to charge. one-button repair for activating the battery: Using high and low- frequency pulse repair technology, for the Undervoltage battery, the battery that has been idle for a long time, and the battery that is not charged, which has a good repair and activation effect. winter and summer mode, voltage sub-charge: The charger automatically detects the outdoor temperature, automatically starts the winter and summer mode? automatically selects the appropriate charging voltage according to the temperature without adjustment. Features; - LCD screen display - voltage detection - pulse to repair - short- circuit protection - full power auto stop - overvoltage protection - 7 Stage Charging - Desulfurization - Trickle Charging - Constant current and voltage charging - Battery current detection - Compensation and floating charging.