How many volts is the car battery?

Generally, the voltage of automobile battery is 12V or 24V, and that of domestic engine is 12V. However, the principle of diesel engine is different from that of engine, which requires better voltage, so more batteries with 24V voltage are selected.

If the battery voltage is too high or too low, it will cause certain harm. Therefore, it is usually necessary to check the operation of the battery. Once the battery voltage is lower than 10.8V, the battery must be charged immediately. If the battery voltage is too low, the car will not be able to run or even start; If the battery voltage is too high, it may damage the battery.

Method for recovering electric power from battery loss of vehicle

1, pulse repair

Use positive and negative pulses to depolarize and charge the battery. After complete discharge, cycle for three times. If the capacity shows signs of recovery, recycle it several times.

2. Water remediation method

Open the lid on the battery and you can see six round holes. Inject a certain amount of distilled water into the round hole and soak it for more than 24 hours. Vehicle battery, also called storage battery, is a kind of battery, and its working principle is to convert chemical energy into electrical energy. The normal service life of vehicle batteries varies from 1 to 8 years, which is closely related to the loss of the first rail of the vehicle.

A better way to eliminate sulfide in storage battery is to use pulse repair method. When repairing with this method, the instantaneous voltage is between 60 V and 300 V. It should be noted that the voltage used in the repair process should not be too large. If the pulse voltage is too large, it will damage the battery plate and affect the service life of the battery.