Features:100% new high quality This battery charger uses a micro MCU controller to manage the battery charging process.With online battery detection, short circuit protection, over-voltage protection, reverse connection protection, and other functions.The smart charging indicator directly displays the charging process, making it easy for users to manage battery current.Dual digital LED displayHigh power rechargeable automatic smart car battery charging 12 / 24V.Specifications:Product Name: Smart Pulse Multifunction Repair ChargerVoltage Range: 110V-250VSpecifications: 18.5 * 14 cmWorking Efficiency: 98%Rated Power: 400WWorking Temperature: -30 to + 50 Working Mode: pre-charge-constant current-constant voltage-trickleThe actual output current for charging a 12V battery is about 40AThe actual output current for charging a 24V battery is about 20AOperation method:Step 1: Detect the voltage of the battery, the voltage of the 12V battery is higher than 11V (do not plug in the 220V, just clip the charger clip to the positive and negative poles of the battery, the display shows the current voltage). The voltage is lower than 11V, there is a repair operation laterStep 2: The charger is not connected to the battery, only 220V is plugged in, and the display is on. Manual/repair gear, the display voltage is about 16V; automatic/intelligent, the display voltage is about 15VStep 3: The charger, plug in the 220V, clip the battery to the battery, and the display will show the current (the full charge may be directly to the no-load state, and the full charge will have a current value, not equal to 0)Package Included:1 x Battery Charger1 x User Manual