Category: battery reconditioning chemicals

Car Battery Reconditioning How To – Complete Guide

The good news is that with the right guide, car battery reconditioning can be done by almost anyone. Everybody who has owned a car for a few years would probably have experienced this sinking feeling – Instead of their prized possession roaring to life when the key is turned, the only thing they get is a tkkk tkkk sound. Car batteries often fail when we least expect them to.

A car battery is essentially a rechargeable battery, specifically known as a lead acid battery. A lead acid battery works in a neat little loop – The battery produces power to kick start the car, and gets recharged by the alternator while you are driving.

Lead acid batteries can be divided into two types: Sealed and Flooded Cell. Sealed batteries requires no maintenance while flooded cell batteries have detachable caps and needs to be checked occasionally for water levels.

Battery reconditioning works on both battery types. The important thing is use only distilled water for topping (no tap water or bottled water). Distilled water is

demineralised so it doesn’t contain minerals that would interfere with the

chemical operation of the battery.

The next time that you check your oil while

refuelling, take a peek at the battery terminals as well to see if they are

tightened properly. A loose connection will cause all sorts of

electrical hassles.

Stuck with a dead car battery? For older cars with a stick shift, it is possible to

push start the car. A car with an automatic transmission should never be

push started.

In either case, it is safer and easier to jump start or fix the car

battery by connecting the flat battery using jump leads to a working

battery. Just follow our DIY car battery reconditioning advice below:

1. Consult your car manual first as some cars have special terminals that can be

used to charge the car battery. If not, proceed to the next step.

2. Position the car with the good battery next to the car with battery problem.

3. Open the hood of both cars. Turn on anything that uses electricity in the car with the flat

battery. This sounds counter productive but it prevents a

power surge from damaging any sensitive electronics.

4. Keep the car with the good battery running.

5. Using battery jumper cables , attach the red cable to the positive (+) of the good battery and then to the positive of the flat battery.

6. Attach the black cable to the negative (-) of the good battery.

7.Do not attach the other end to the flat battery. Instead, attach it to

an unpainted surface such as a nut on the suspension mount.

8.Try to start the car with the flat battery. It may help to wait a

minute or two and possibly step lightly on the gas of the working car.

Make sure it is in park!

9. When the car starts, remove the

leads in reverse order to which you attached them i.e. black on the flat

car, black on the good car, red on the flat car and red on the good


10. Lastly, make sure you leave the car running for a while to allow the alternator to properly charge the flat battery.


way of car battery reconditioning is to use a plug in battery charger.

There are different types of chargers, so follow the instructions for

your model. When you’re reconditioning a car battery, make sure that the

battery remains well ventilated. If it becomes hot or swollen, stop


Sometimes you need to do a few minutes on ‘fast

charge’. This will help remove the sulfation if there is any. If you are

charging your battery on a charger that has a ‘fast charge’ setting be

sure not to leave on that setting longer than a minute or two.

If you

leave it much longer than that you will find the fluid in your battery

boiling and creating hydrogen gas. This gas is flammable and could

explode if an ignition source is present.

It is also possible that your battery is fine and keeps going flat

because of an

electrical fault or a malfunctioning alternator. A quick stop to a

battery or auto shop will reveal if your battery can be reconditioned or

needs to be replaced.

All batteries degrade over time. Eventually all batteries will run down and can no longer be charged. Reasons for battery degradation and failure include:

No car battery conditioning guide in the world is going to work for a degraded or failed battery. In most of the cases above, your car battery is permanently fried and needs to be replaced – Click here for my complete guide to changing a car battery.

If you plan on going the DIY route, you should

always disconnect the negative terminal first to remove the “ground.”

This will prevent accidentally creating a short circuit. The ground is

normally attached to the car body meaning it is easier to create a short

and possibly hurt yourself than you may think.

A car battery is not difficult to replace but be aware that car

batteries do contain acid and can cause bodily harm. Safety goggles

and work gloves should be wore at all times. I have ruined many a good shirt

just poking around with car batteries.

Recommended Tools and Parts for Changing Car Batteries

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