1. The function of battery

2. Symptoms of battery replacement
1) The battery fault light comes on

2) Battery bulge and leakage

3) Continuous ignition failure or difficulty in ignition

4) Batteries that have experienced multiple power losses
Some car owners may continue to use vehicle electronic devices after turning off the engine. If this continues in the long run, it may easily cause the battery to over-discharge, which directly affects the service life of the battery.
If the battery is over-discharged (i.e., depleted) many times, it is recommended to check and replace it to avoid affecting future use of the car.

5) Daily maintenance

6) Voltage changes before and after starting
The normal voltage of the battery is about 12V. After starting, due to the charging of the generator, the voltage will increase to about 13-14V. Many vehicles have a voltage detection function. Paying attention to the voltage before and after starting is also a good way to judge the battery life. Vehicle If it is lower than 12V when not started or lower than 13V after starting, you should consider whether there is a problem with the battery.
The car battery is always a consumable item and it has a lifespan. The service life of the battery is generally about 2-3 years. When the replacement cycle comes or when your vehicle shows the above symptoms, you should go to the repair shop to check and replace the battery in time! Otherwise, if you suddenly can't get a taxi one day, you will have to ask others for help or wait for rescue.