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How to Recondition a Car Battery that won’t Hold Charge Properly!

There are lots of queries about car batteries and none of them are ignorable. Knowing all of them literally impossible at a time but crucial ones are make sense.

Here you are going to find out how to recondition a car battery that won’t hold charge?

If you are looking for the best solution to this very common issue, you are in the right direction. Here we have provided a complete guide.

The car battery is the vehicle’s source of energy, an essential element that ensures that the engine and electrical systems work.

While its condition is not adequate, it could negotiate your safety and care on the road. Hence, it is vital to provide optimal maintenance to the car battery.

The lifespan of an average car battery is generally somewhere between 3 and 5 years.

For the battery to last as long as possible. However, you must make sure that you keep it fully charged at all times, as well as ensure that the battery is clean and free of corrosion.

Allowing the battery to discharge, become covered in-ground, or get corroded terminals will negatively affect the performance of the battery. If the car battery dies, however, it is possible to recondition it.

How to Recondition a Car Battery that Won’t Hold Charge: The Process

Reconditioning dead batteries for your vehicle saves money, and recycling old batteries helps the environment by keeping excess waste out of the garbage dump.

Therefore, reconditioning old batteries can save a person anywhere from $ 40 to $ 70 per battery depending on the type of battery being recycled.

The process is quick and easy; the hardest part is moving the heavy battery around.

Step: 1: Wear Safety Gears

Put on safety glasses and rubber gloves before starting to work on the battery. If the battery you are reconditioning is in the car, remove the battery from the car.

Using a wrench that fits the nuts of the battery cable connection terminals, loosen the terminal clamps of the positive and negative cables.

Step: 2: Loosen the Bracket

Loosen the bracket nut that holds the battery in the compartment and remove the battery from the vehicle. Place the battery on a wooden or plastic top table or bench to work on the battery.

Step: 3: Remove the Cell Caps

Remove the cell caps from the top of the battery by firmly gripping a cap, and moving the cap while pulling up.

If the battery is a sealed battery that does not have removable covers, look for the circular print on the top of the battery. This is where the battery cells are.

Step: 4: Set Your Drill Bit

Set your drill bit to 1/4 inch deep using the manufacturer’s instructions for your drill. This prevents the bit from drilling too deep inside the battery.

If you penetrate it too deeply, it could damage the metal plates inside the cells. Puncture a hole in the center part of every circular print.

Tilt the battery into a plastic container and carefully pour out the liquid. Set the fluid aside for later disposal by the disposal regulations for your area. Mix 7 oz.

Of Epsom salts with a quarter of purified water in another container which is made of plastic. Stir it with the plastic made spoon till the salt has dissolved completely.

Step: 5: Put the Funnel

Place the funnel in the first open cell hole, and pour in the Epsom salt mixture until the cell is full. Repeat the procedure for the other cells.

If more of the Epsom salt mix is ​​needed, use the ratio above to mix more. Replace the caps, or use rubber battery sealing plugs on the cells on top of the battery.

Attach the red wiring clamp from the battery charger to the positive side battery post and then black wiring to the negative side battery post.

Set the battery charger according to the manufacturer’s instructions, and charge the battery in trickle charge for 7 to 10 hours. After charging the battery, it is ready for use.

Why is the Car Battery not Working?

There definitely numerous reasons behind automotive battery failures and you need to find the actual one.

Once you get the assurance of what’s happening with your car battery then it will be very easy to fix it.

Here we have to describe some causes which could be the reasons for a dead battery, let’s dig it down.

Battery not working?

One of the worst nightmares for a driver is realizing that the battery does not work and therefore the car will not start. The most normal cause of a car being unresponsive is a dead battery.

If your vehicle has been stopped for a long time and you forgot to turn off the lights, there is no doubt. But don’t worry because you can charge it to get it working again.

The battery has Come to an End: about to Expire

Another reason is that the car will not start because the life of the car battery has reached the end. Then, it is time to substitute it with a new one.

Tips and Warnings

  • Do not store batteries on a specific surface. The battery loses its charge faster on a concrete surface.
  • Work in a well-ventilated place. Be careful, and keep the battery liquids off your skin. They can cause severe chemical burns.

How to Recondition a Car Battery that won’t Hold Charge: Costing Details

The main objective of a reconditioned battery is to eliminate the sulfation which is developed in the battery. It is done by parting some additives and leaving the remaining battery for some time.

Straightly, it leads to a plaque sulfation breakdown. It processes also reasons the charge of the battery in a proper way to its fullest capacity and upsurges the life expectancy of the battery.

To charge the car battery, doesn’t serve the aim of sulfation breaking. Thus, if you will recharge the car battery, reconditioning is the best solution and advisable.

With some important tools, you can do it at the house. There are many easy methods to recondition the batteries.

If you will be reconditioning your car battery, you will save 25% to 50% approximately on the cost of a new car battery. Its average price ranges between $75 to $100.

Advantages & Disadvantages of Reconditioning Car Battery

If you’re not sure about the advantages and disadvantages of reconditioning your car battery, let us find out here:

Advantages We Love

Longevity: It is definitely that a new car battery will surely last longer than a reconditioning one. Did you know reconditioning car batteries lasts longer than charged batteries?

If the reconditioned battery is properly and professionally recharged, it can surely last for a long period.

Reliable Power: A reconditioning battery can be reliable as a brand new one. If you do not have much budget or have an old car, a reconditioning battery is just the perfect option for you. 

Readily Available: For many car models or brands, finding a new battery is a very tough task especially when that car’s model is old.

However, many professional suppliers keep reconditioned batteries for old models also.

So, when you need a battery in an emergency for your car, you will probably get the reconditioned option.

Affordable: A high-quality reconditioning car battery comes at the best affordable price than the newer car battery.

So, the reconditioned car battery is the best option for those who are looking for a cheap battery. 

Eco-friendly: While you can’t charge your car’s battery, it is a good method to power your car than simply buying a new one.

Thus, you can reduce the effect on the environment by recycling a battery that can cause a substantial amount of damages.

Moreover, pollutions are because by the battery acid inside of the car battery.

Disadvantages We Have Faced

Poor Quality: When you find reconditioned batteries in the market, many of them have low quality if you will compare them with the new car batteries.

It will be a risk to install in the car as it can be dead at any point in time.

Thus, you can expect that such batteries can die quickly. Also, these reconditioned batteries are not that reliable in comparison to the newer ones.

No Guarantee: There is no guarantee of a reconditioned car battery. When you buy a new car battery, it is covered with a guarantee from its manufacturer.

On the other hand, a reconditioned battery does not have any guarantee. So, it is risky always to use it.

Can be Failed Anytime: Since it does not cover any warranty or guarantee, it can stop working at any time on the road.

Many times, it is also possible that it stops working while you start the engine in the morning. And so, such conditions can cause any serious accident.

So, after going through all these advantages and disadvantages, you should decide whether you should go with the reconditioned battery or not.

Symptoms of a Car Battery won’t Charge

Next, we will learn about the symptoms of car battery won’t charge:

01. Warning Light on the Instrument Panel

Cars have a dashboard for a reason: It’s a way to alert you to potential problems so you can fix them in time.

If you’re wondering how to tell if my car battery is failing, then constantly check that a battery image on your dashboard isn’t lit.

02. Slow Engine Start

If your vehicle is taking longer than usual to start the engine then it could be a battery problem.

The boot should be fast and powerful, so if you feel that it is weak and slow check it, change it if necessary.

03. Malfunction of Electronic Devices

Another indicator of how to know if the car battery is good is the section of the electronic component that the vehicles incorporate.

A battery in perfect condition must be able to supply power to the radio, rear camera, onboard computer, internal and external lighting, as well as heating and air conditioning.

If any of these items do not work or provide the poor performance it could mean battery problems.

04. Swollen Battery

If the car won’t start and you don’t know why then you can open the hood and see the physical appearance of the battery.

When they have been exposed to large amounts of heat they swell causing the exterior walls to escape. 

At that time, you will have to change the battery as it will not work again.

The same is true when you leave a vehicle unused during a freezing winter, allowing the battery to freeze, at which point it will be mandatory to change it.

05. Smell of Rotten Eggs

A battery that has been frozen or overcharged will release a gas that smells like rotten eggs.

If you think of this unpleasant smell, you should change immediately its battery as sulfuric acid is harsh and it can also affect other car engine parts, leaving your vehicle damaged. 

Keep in mind that the most common batteries usually last a period of 3 to 5 years, so if yours has been working that amount of time and has any of the symptoms mentioned, it may be the right time to change it. 

By paying attention to the aforementioned signals, you can anticipate uncomfortable events and keep your car in optimal condition. 

Do not forget to do an exhaustive review, from time to time, of all the functions that depend on the battery and thus you will avoid having problems.

Car Battery Maintenance Tips & Tricks

Here in the following section, we will learn how to take care of the car battery:

01. Check the Battery Periodically

The first point you need to do is include the battery in the periodic reviews of the car.

Every time you visit the mechanic for a check-up or an appointment ask him to also check the battery to see if it is in good condition or if it needs to be changed.

02. Monitor the Temperature

You should also take into account that factors such as the outside temperature of the car influence the performance of the battery.

The extreme cold could prevent starting due to lack of amperage, so in winter, especially in cold spells, it is preferable to park undercover

03. Disconnect the Battery in Long Periods without Using the Car

Another problem to note is that the battery discharges even if we do not touch the car. This is something that not all drivers take into account.

Moreover, if you are going to be a long period without using your vehicle you should disconnect it so that it does not consume electricity.

All you need to do is detach the terminals, first the black (negative) and then the red (positive).

Of course, when you are going to use the vehicle again, make sure you connect the terminals first, starting with the positive.

04. Check the Battery Status Indicator

Gauge batteries are history, and most of those sold today require hardly any maintenance beyond the precautions we’ve seen before. In such a way, we evade dangers like sulphation.

What they do have is an indicative indicator that indicates the status of the battery. But being a guide, it is not 100% accurate, so you should not completely trust this integrated density meter.

So, we are going to see how to check the alternator and the battery with a multimeter. The only thing you have to do is turn off the car and any electrical consumer.

Such as the radio or the lights before opening the hood and putting the multimeter in the continuous voltage measurement position.

The red terminal is placed on the red terminal and the black on the black or any bare part of the body.

A result of 12.7 volts indicates that the battery is fully charged, while the battery below 11.9 volts is completely discharged. If it is at 12 volts it has a 25% charge, and at 12.2 volts it is half.

05. Know the Proper Way to Charge the Car Battery

A method known to all is the clamps, which allow us to borrow electricity from another vehicle’s battery to charge our own and start the car.

Remember that you must follow the order of the red terminal for the car without battery and red for the car with battery.

Additionally, black is for the car with a battery, and black is for the car with no charge. The other option is to jump-start, an emergency remedy that many manufacturers do not recommend.


We are sure, with this guide, now you have learned how to recondition a car battery that won’t hold charge.

Our cars have more and more complex electrical systems. The batteries have not escaped this evolution, they are becoming more complex, safe, and efficient.

But even so, it is necessary to carry out good maintenance of the car battery. Despite we do not want to get the unpleasant surprise of getting behind the wheel and that the car does not start.

Our mechanic is the most suitable for this, but there are a series of measures that we can take ourselves, such as checking consumption or the alternator.

For the owner, it is also important to know how to charge the battery correctly to avoid problems in the future. If you’ve run out of battery, the best thing to do is replace the battery. 

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