Water in a Car Battery. How to Check Water Level in a Car Battery?

Posted by

does a car battery need water

Distilled Water in a Car Battery

The majority of car owners are interested in finding out why there should be distilled water in their car batteries. They also wonder if they should add distilled water in their car batteries from time to time, how to do it and how much water should be added. If you’re one of those car owners who know everything about the electrochemical liquid inside a car battery, we believe you know the answers to all the questions mentioned. This article will be useful for those who don’t know the answers to the questions mentioned.

What’s distilled water?

Distilled water is the liquid that’s contained in the electrolyte inside your car battery. This water guarantees that the electrolyte is dense enough and that the car battery works properly. According to the standard adopted worldwide, the electrolyte should contain not less than 65% of distilled water (all the rest is sulphuric acid). This is exactly the distilled water that allows a car battery to accumulate charge and then use it when necessary. Unlike the water that we drink every day, distilled water contains no contaminants.

water in car battery

Don’t ever add the water we drink in your card battery instead of distilled water. The contaminants contained in the water will settle down on the plates thus decreasing the service life of a car battery!

If there isn’t enough distilled water in a car battery, the sulpuric acid will start to damage the plates thus damaging the car battery itself.

How Much Water Should be in a Car Battery?

It’s very important to check the level of distilled water in your battery during summertime. This is the season of the year when your car battery starts to heat up. Consequently, the distilled water contained in the electrolyte starts to vapour away. You’re to add as much water as necessary in order to compensate for the loss of water.

how much water should be in a car battery

A car battery has several plates that’re submerged in the electrolyte. Once the water evaporates, some parts of the plates get to the surface. They become dry. Due to it, they’re more likely to get damaged. In other words, the need to add distilled water in your car battery arises when you see that the level of the electrolyte has dropped down. Some car batteries have special marks that allow a car owner see whether there is a need to add distilled water. If your car battery has no such like marks, you’re to control the level of electrolyte by looking at the plates inside.

Before adding distilled water in your car battery, find out whether you have a car battery that demands maintenance or not. If you’re lucky to have a car battery that demands no maintenance, you won’t have to ever bother adding distilled water in it. The thing is that the case of such like batteries is hermetically sealed. Once such a battery cools down, the drops of water on the walls of the case drop down in the electrolyte. You can add distilled water only into car batteries that demand maintenance.

How to Check Water Level and to Add Distilled Water into a Car Battery?

Before you can start adding distilled water into your car battery, you should check that there are no cracks on it. The water may leak out of these cracks.

There are some things you should do before adding distilled water in your car battery:

  • – Buy distilled water
  • – Clean dust and dirt off your car battery
  • – Take rubber gloves. If electrolyte gets on your skin, you may get a chemical burn.
  • – If it’s the first time you carry out the procedure, make sure that your car battery is disconnected. (Some car owners don’t disconnect the battery terminals before adding water)
  • – Make sure that the temperature in the room where you carry out the procedure is above zero.

Video: How to Check Water Level in Car Battery

How to add distilled water in a car battery?

1. Clean dust off your car battery and open it up.

2. Check the level of the electrolyte. Many car batteries have a special mark showing the necessary level of electrolyte. If there is no such mark on your car battery, take a flashlight and look inside your battery. The electrolyte should fill all the battery in, up to its neck. If the level is lower, there is a need to add distilled water.

3. If you have a densitometer, you may use it in order to do both, measure the density of the electrolyte and add the necessary amount of distilled water. If you don’t have the device, you may use either a syringe or a dropping pipette in order to add distilled water into the battery. This way you can be sure that you won’t add too much water.

4. Don’t use your car battery right after you add distilled water into it. Wait a bit. Let the different liquids inside your battery mix with each other.

5. If you want, you may charge your car battery a bit before connecting it to your car.

Attention! No dirt or dust should get inside a car battery. It may result in your car battery being broken.

Pay attention to the fact once you open your car battery up, the car battery itself may be not covered by warranty anymore. (The majority of car battery manufacturers tend to do so). That’s why if your warranty is still valid, you’d better contact the official service centre and ask for help in carrying out the procedure.

Useful articles:

How Often to Replace a Car Battery?
How to Test a Car Battery?
How to Prolong Car Battery Life?

Video: How to Add Water to a Car Battery

Leave a Reply

Your email address will not be published. Required fields are marked *