The replacement of auto batteries is relatively simple, requiring a wrench and a multimeter (for testing).

　　1). First, turn off the car, open the engine hood, and find the location of the battery.

　　2). Use a digital multimeter to check the battery voltage. If the battery voltage is lower than 12V, charge the battery and perform a battery load test to determine whether the battery is good or bad.

　　3). After confirmation, first remove the battery negative cable, and then remove the battery positive cable.

　　4). Next, remove the battery fixing clip. At this time, the battery can be taken out. Be careful not to tilt the battery during the removal process, or cause liquid leakage on the side.

　　5). After cleaning the battery tray, put the new battery into it and reinstall the battery fixing clip.

　　6). Next, connect the positive cable first, and then connect the negative cable.

　　7). After the new battery is installed, start the engine and check the charging system with a digital multimeter. The battery voltage should be between 13.5-14.5V.

　　One of the most worrying questions when users replace batteries by themselves should be: Will changing batteries of other brands be worse than the original brand. This worry is completely unnecessary. In fact, as long as you buy regular products, they will generally not be bad, such as VARTA, AC Deco, Uni-President, Fengfan, Delphi, Bosch, Camel, Kejian, etc. If you buy the correct model, you can find the item number on the official website, or buy it in a franchise store, the general quality will still be guaranteed, and the car owner can rest assured.