1: Connect the wire between the battery charger and battery and make sure the connection is right and good.
2: Put the plug of battery charger into the AC power source.
3: Wait 3 second the charger will start to charge the battery.
4: Press” battery selection” button to choose the suitable battery type.
5: You can control the charge current via choosing the” batter selection”.6: With charging current selection 5A,10A,15A,20A.