Replacing a car battery is generally done in a repair shop by a mechanic, but apparently you can do it yourself in a fairly easy way.
New car owners seem to be able to go through the reviews regarding how to replace this battery, because usually the battery is replaced due to problems and occurs in vehicles aged 2-5 years and over.
Moreover, changing the battery is usually experienced by those who have just bought a used car.
The battery in the vehicle has a very important role to flow electric current. If the battery starts to weaken, the vehicle usually has signs before the battery is completely dead.
But it must be known, how to replace the battery for modern cars is actually quite different from old cars. Moreover, the current average new car has adopted the injection system.
Wrong-wrong, if you are not careful to pay attention to the process of changing the car battery, the ECU will have problems.
This affects when you want to replace the battery which requires some special steps. Well, this step is actually not widely known by car owners.
So that Carmudian can understand better, let’s just talk about how to replace injection and non-injection car batteries!
How to Change a Non-Injection Car Battery
First of all, we will discuss about how to replace a non-injection car battery. Usually to replace this type of car battery is arguably very easy and does not require special skills.
Although it is fairly easy, there are still some people who do not understand how.
Prepare the Wrench
The first thing to do is prepare a wrench. Usually the battery head lock uses a size 12 or 14 nut.
Try to open the battery head when the engine is off. When the engine is off, you can immediately remove the battery head.
Release Negatives First
Try to remove the minus or negative (-) or black battery head first. The goal is to avoid the potential for a short circuit when the battery head hits the hood.
After that just remove the positive (+) or red cable. After the two battery heads are removed, don’t forget to position the positive cable in a safe place and not rub against the car body.
Release the Old Battery
After both cables are removed, Carmudian can immediately remove the old battery and replace it with a new one. Do not forget to replace the battery with the specifications required by the car.
For example, the battery needed is 70 amperes, then it can be replaced with an equivalent or slightly larger. Try not to choose a smaller amperage capacity.
Clean the Battery Bottom Area
If you previously used a wet battery, there will usually be white residue marks. When you remove the battery, try to clean the dirt before putting the new battery back in.
How to clean it can also use a soft wire brush or toothbrush. Also check to see if there is any corrosion at the bottom of the battery or not. Usually the bottom of the battery is prone to porous due to exposure to the battery fluid that comes out.
Install New Battery
After the battery holder is clean of dirt, you can install a new battery. Position the new battery like the old battery and make sure the position is not rocking.
Install the Battery Head
The next step can be to install the battery head by starting from the positive (+) pole first. Also make sure the pole is tight before installing the negative (-) pole.
Tighten the two poles and make sure the battery head is attached properly. When you want to tighten it, try not to touch the lock on the hood so that there is no electric short circuit.
After completely installed, check the condition of the cables again. Do not let any cables that are loose or less tight.
The last thing you can do is cover the positive (+) battery head with the rubber or plastic cover provided. If not, then the part can be covered with plastic or rubber to avoid the potential for rubbing against the metal.
Once completely installed, the car engine is ready to start. Turn on the car engine and let it sit for about 10 minutes so that the battery charging can be maximized.
How to Change the Injection Car Battery
Meanwhile, how to replace the battery which we will discuss next is an injection car battery. To replace an injection car battery requires a little different handling.
For some European car brands and modern cars that already use full electronics, the way to replace the battery can be by leaving the car on.
Prepare Jumper Cables
To replace the battery, first prepare the jumper cable. These cables can be purchased at many stores online nor offline.
After that, prepare a spare battery that will be a temporary power source when the battery is about to be removed. Then attach the jumper cable at the head of the red positive (+) pole of the old battery with the red positive (+) pole on the spare battery.
Then attach the negative (-) jumper cable to the head on the old battery with the negative (-) pole on the car body, for example on the hood or fender. After the two poles are attached, Carmudian can begin to slowly remove the battery head.
Clean the Bottom of the Battery
When the battery is removed, you should first clean the bottom. Also check if there is any corrosion on the bottom deck of the battery.
If there is, Carmudian can coat the area with paint that was previously sanded to prevent rust from spreading. Then the new battery can be installed immediately.
Tighten Aki’s Head
After the new battery is installed, tighten the battery head nuts on both poles. Try to tighten the positive part first and then the negative part after.
When tightening do not let the key rub against the body. It’s better to go slowly but with minimal risk than rush but the risk of short circuit is big.
Disconnect the Jumper Cable
After the two battery heads are tight, Carmudian can remove the jumper cables. Try to remove the black jumper cable (-) first that is attached to the vehicle body. After that remove the black jumper cable (-) attached to the spare battery.
Then the red jumper cable (+) attached to the battery head is removed. While the jumper cable (+) attached to the spare battery can be removed at the end.
This method is generally used when you want to replace a modern car battery.
This is intended so as not to eliminate the existing memory in electricity such as power windows, clocks, head units, and other electrical devices. In addition, it can also reduce the risk of interference with the ECU when completely removing the car battery.
Some modern cars have encountered cases of ECU or computer damage when replacing the battery. As much as possible, modern cars that are fully electronic must use the method above when they want to replace the car battery.
If you don’t have tools such as jumper cables and a spare battery, you should go to a trusted battery installation place.
Or if there is no such tool, then Carmudian can do a scan at the repair shop after replacing the battery to restore the settings that were lost due to battery replacement.
Penulis: Rizen Panji
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