How to charge the car battery?

To charge a car battery with a charger, the first thing to look at is the volt number of the car battery. If it is a battery, adjust the charging voltage to 12V, and then adjust both to 24v. Then after seeing clearly which is the positive electrode of the battery (generally, the positive electrode leads to the motor and the negative electrode leads to the ground), clamp the positive electrode with the red clamp of the charger, clamp the negative electrode with the black clamp, and plug in the power cord to charge. At this time, the ammeter and voltmeter on the charger are rising. Then adjust the charging current button to control the charging size. So you can charge it.