Which cars can’t be powered off when changing the battery, the whole car is constantly charged

Generally, the service life of a car battery is 2-3 years. If the battery has been used for a long time and there is no charge or charge, it may be that the battery life has expired and needs to be replaced. However, it is generally necessary to cut off the power to replace the battery. However, some cars may have some problems when the power is cut off. What kind of cars cannot be cut off when the battery is changed? Let's find out below.

As long as the negative pole of the battery is disconnected, the circuit of the car will not be able to form a loop, the battery will stop supplying power, and the electrical equipment in the car will stop working.For cars with an on-board computer (ECU), a power outage will cause the on-board computer to reset, data may be lost, and even someerror code. Moreover, some functions on the car, such as anti-theft, driving record, etc., will also fail due to power failure, and may also be restored to factory settings and need to be reset.

Battery replacement tutorial for the whole car

In order to keep the whole vehicle uninterrupted, the replacement battery should be replaced by the lap method, that is, use a wire with a clip, connect the spare battery in parallel with the old one, remove the old battery, and then install the new battery.

1. First find a spare battery, which can be the battery of another car, connect the positive and negative electrodes of the spare battery to the car with wires, the positive electrode of the spare battery is connected to the positive electrode of the original car's battery pile head, and the negative electrode is connected to the metal part of the body;

2. Then unscrew the pole head connection on the old battery and remove the old battery;

3. Then install the new battery on the car, and connect the positive and negative poles of the original car accordingly;

4. Finally, remove the tie wire.