Many drivers have experienced difficulty starting their vehicles. Sometimes, the fault lies with the main body of the vehicle, but often this is due to deposits on the car battery terminals. Learn how to clean a car battery that has corroded below to save on repair costs and get rid of your worries.
Step
Method 1 of 2: Cleaning with Baking Soda
Step 1. Make sure the car is off
This is done to prevent the risk of being electrocuted.
Step 2. Determine the battery configuration
There are two types of configuration on the battery.
- If the battery terminals are on the sides, you will need an 8 mm wrench to loosen the two cable nuts.
- If the terminal is above the car battery, you will need a 100mm or 13mm wrench.
Step 3. Loosen the nut on the negative (-) cable clamp
Remove the cable from the post.
Step 4. Do the same with the positive (+) cable
If you have trouble removing the cable, try twisting and pulling the cable at the same time.
Step 5. Check if the battery is cracked and emitting acid
If you find a leak, the battery must be replaced.
Step 6. Check for tears in the cables and clamps of the car battery
If you find a large tear, this part should be replaced.
Step 7. Mix one tablespoon (15 ml) of baking soda with 1 cup (250 ml) of hot water
Dip an old toothbrush in the solution and scrub the top of the car battery to remove corrosion deposits.
You can even dip the ends of the battery cables to dissolve the corrosion on the wires
Step 8. Use a toothbrush to check the clamps and posts of the car battery
Remember, wet your toothbrush with as much baking soda as needed.
Step 9. Rinse the battery and cables with cold water
Make sure all the baking soda and corrosion are washed off. Dry the car battery and the tongs with a clean cloth.
Step 10. Lubricate any visible metal on the car battery terminals, posts, and clamps
Use petroleum jelly or an over-the-counter battery terminal spray.
Step 11. Reattach the positive cable clamp to the appropriate terminal
Tighten the nut with a wrench.
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Repeat with negative (-) staples. Try turning the terminal with one hand to make sure it is firmly seated.
Clean Corroded Car Battery Terminals Step 10Bullet1
Method 2 of 2: Emergency Cleaning
Step 1. Keep gloves and wrenches of various sizes in your car
Step 2. Loosen each terminal with a wrench
Do not disconnect all cables completely.
Step 3. Pour the cola drink from the center of the battery and then move it outwards in one direction
Repeat this pose in the opposite direction.
Step 4. Leave the car battery wet for two minutes, then rinse with water
Tighten the battery terminals again and try to start the car again.
Tips
- You can buy a car battery cleaning spray. Some of these sprays have an acid detecting formula. Usually, these products are more practical, but you must follow the directions on the packaging because each brand has a different way of using it.
- You can use a battery terminal brush or sandpaper if the deposits are too heavy for a toothbrush.
Warning
- The negative wire MUST be disconnected first and installed last to prevent a short circuit.
- Remove all your jewelry and accessories before working. Rings or bracelets can conduct electricity and get caught in the engine.
- Always wear safety clothing.
