How to replace a car battery yourself?

Car batteries lose most of their capacity and performance with age. On average, they need to be changed every five years, although this figure is individual. With a significant decrease in performance, replacement is necessary, because you can find yourself in the middle of the road without the ability to start the car.



Preparatory stage
Replacing the battery with your own hands is quite simple, if you follow a few simple rules. The main difficulties may be with the choice of a particular variety. It is better to select in a car shop, where there is a search by make, model and year of manufacture of the car. It is necessary to take into account the specification specified by the manufacturer in the instructions.

Violation of the recommended characteristics can be critical, since batteries have different mounting methods, placement of electrodes and pressure plates. Even the shape and size can get in the way of putting the battery back in place. And the starting current and capacity are the main indicators. You need to prepare the following tools:

1. A pair of gloves to protect your hands.
2. Socket, open-end or adjustable wrench.
3. Adjustable holding pliers.
4. Hammer and terminal cleaner.
5. sanding paper.

The last two items may be needed in case of oxidation of compounds. A new battery should also be treated with a cleaning agent, it protects against rust and oxidation. It is advisable to pick up several keys, among them there is always an option with a 10 mm socket. This is the most common type of nut.



Procedure for replacement
Replacing it is easy if you follow a step-by-step plan:

1. Wear acid protective clothing.
2. Arrange the necessary items within walking distance.
3. Check the instructions for the location of the battery.
4. Loosen the union nut with a wrench.
5. Remove the negative and then the positive terminal.
6. Unscrew the bolts on the clamping plate and remove it.
7. Remove the old battery, set aside.
8. Check the terminals for rust or deposits.
9. Clean the terminals with sandpaper.
10. Treat the connection with a protective compound.
11. Install a new battery and screw on the bar.
12. Attach the positive, then the negative terminal.
13. Take the old battery to a recycling station.

It is necessary to adhere to safety rules, especially in the case of serviced models. Acid can bring a lot of trouble. After installing a new battery, you should check the correct placement. The connections must not be touched by metal parts to avoid fire.