How to fix any dead car battery back to life again? (2024)

Cars are our most trusted and preferred means of transport. The automobile industry has grown and progressed exponentially in the last century. People pay a lot of money to buy the cars of their choice but are rarely aware of the working of their automobile. A car battery is one the very important components of your automobile and it is very important to be aware of its functioning. Knowledge about the car battery will help you avoid any emergency breakdowns.

In recent times, there are manufacturers who have released products such as the instant power jump box which are similar to smartphone power banks and can be a handy device to have during emergencies.

How to fix any dead car battery back to life again? (1)

Below is simple steps are methods to fix any dead car battery and bring it back to life again:

1.Basic requirements:

The process of reconditioning your dead battery will require assembling simple ingredients such as Safety goggles, safety rubber gloves, apron, battery charger, voltmeter, jump starter, basic tool kit, funnel, water buckets, distilled water, Epsom salt, baking soda, cleaning tools, etc. These ingredients will gradually be used step by step in the entire process.

2. Clean Battery terminals:

Battery Terminals are made from metal and will often have a layer of rust on them. Prepare a solution of baking soda and distilled water and by use of a brush clean the rust away.

3. Check voltage:

How to fix any dead car battery back to life again? (2)

This step will require using the voltage meter to check the voltage status of your battery. Connect the voltage meter with the terminals of your battery and check the reading. If the reading is anything lower than 12.6 V then reconditioning will help revive your battery.

4. Clean battery acid:

Before this step wear the safety goggles & gloves, apron to ensure personal safety. By use of a screwdriver open the battery lid and gently & carefully pour out the old battery acid in an empty plastic bucket. Place the empty battery away carefully and add around half-pound of baking soda into the bucket filled with the old battery acid. The baking soda will neutralize the acid.

5.Clean Cells of the Battery:

Prepare a mixture of baking soda mixed in distilled water and by use of a funnel pour the solution into the cells of the battery. Once they are full, close the lids and shake the battery for a minute or two. The solution will cleanse the inside of the batteries. Once done empty the solution into another clean bucket.

6.Recondition Battery:

How to fix any dead car battery back to life again? (3)

This step requires the preparation of an electrolyte solution by mixing half a pound of Epsom salt in boiling distilled water. Once the solution is crystal clear you can start pouring it into the battery cell by use of a clean funnel. The cells should be filled completely and then carefully close the lids. The electrolyte solution will increase the voltage and amps which your car will need from your battery.

7.Charge Reconditioned battery:

This step will require the use of a car battery charger. Affix the correct terminals of between both the devices and leave it on slow charge for over a day. In case of breakdowns caused by dead batteries storing a device such as car battery charger portable power packcan be very useful.

8.Battery Test:

Use a voltmeter and test the voltage level of the battery. If the voltmeter reads 12.4 V then your battery reconditioning is complete. If not leave it on charging for another day until your reading reaches 12.4V.

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How to fix any dead car battery back to life again? (2024)

FAQs

How to fix any dead car battery back to life again? ›

If your battery is sulfated, which results in low power and difficulty in recharging to full capacity, it can sometimes be recovered using proper pulse charging techniques. Wehmeyer warns, however, that there are an infinite variety of pulse charging techniques used by a wide variety of equipment sold for this purpose.

Can you bring a dead car battery back to life? ›

If your battery is sulfated, which results in low power and difficulty in recharging to full capacity, it can sometimes be recovered using proper pulse charging techniques. Wehmeyer warns, however, that there are an infinite variety of pulse charging techniques used by a wide variety of equipment sold for this purpose.

Can you fix a completely dead car battery? ›

Whenever you have a completely dead battery, there is no way of reviving or fixing it. You must replace it. However, whenever you have a dying or weak battery, there is room for a fix. The following discussed methods will help you fix your dying or weak battery for a short period.

How to make dead batteries work again? ›

Charge the battery slowly. Sometimes old batteries just need a recharge to recover capacity. Connect the battery to a trickle charger or charger designed for recharging old batteries. Charge at 1-2 amps for maximum charge retention.

Can a completely dead battery be recharged? ›

Can a completely dead battery be recharged? If the battery is your only problem and the car is in otherwise good working order, it is quite possible to completely recharge a completely dead battery. Using the charger or a jump start or push start and then letting the engine idle with electrical items switched off.

How do you fix a dead car battery without another car? ›

Can you jump-start a car without another car? You can, but you'll need something called a portable jump-starter. These devices store power that can be output directly toward a dead battery. These are a much better option than jumper cables as they eliminate the need for another car.

How do you revive a dying car battery? ›

You can do this by applying an overcharge to a fully charged battery using a regulated current of around 200mA (milliAmps) for a period of roughly 24 hours. This allows the battery's terminal voltage to rise between 2.50 and 2.66 volts per cell, which helps to dissolve sulfate crystals.

Can a dead car battery be saved? ›

The simple answer is- try to charge the battery. That may seem overly simplistic, but the truth is, many batteries that are thought to be "dead" are just deeply-discharged and work fine, when properly-recharged.

Is a car battery ruined if it goes completely dead? ›

Leaving a car battery drained for just a few hours will leave permanent damage. Think back to the battery chemistry we've covered. Your car battery is lead plates, coated with sensitive materials, sitting in cups of liquid electrolyte.

How do you force a dead battery to start? ›

6 Steps To Jumping a Car with a Dead Battery
  1. Position the Booster Vehicle.
  2. Locate Battery Terminals.
  3. Connect Jumper Cables.
  4. Jump-Start the Car.
  5. Disconnect Jumper Cables.
  6. Drive the Jumped Car.

Can you rejuvenate a car battery? ›

A standard car battery contains six cells, each producing about 2.1 volts. Therefore, a healthy battery will read 12.6V. Between 10V and 12.6V will mean you can recondition the battery. At less than 10V, replace the battery instead.

How do you reactivate a battery? ›

If your lithium-ion battery dies, here are the actions you need to take to jumpstart it:
  1. Step 1 get the charger ready. ...
  2. Step 2, plug in the charger. ...
  3. Step 3, Verify Voltage. ...
  4. Step 4, Alligator clips should be attached in. ...
  5. Step 5, Keep an Eye on the Charger. ...
  6. Step 6, Disconnect the power source. ...
  7. Step 7, Check the Battery.
Sep 15, 2023

How to fix a dead car battery at home? ›

Jumpstart
  1. Step 1: Make sure the car is off.
  2. Step 2: Identify the negative and positive terminals of your battery.
  3. Step 3: Identify the positive and negative clamps of the portable jump starter. ...
  4. Step 4: Connect the clamps to the car's battery.
  5. Step 5: Turn on the portable jump starter and then turn on the car.
Jul 28, 2021

Can a battery be too dead to jump? ›

If the battery is completely dead, it won't always have enough power to turn over the engine, even with a jump start. In this case, you'll need to replace the battery to get your car running again. Another reason why a car battery won't jump is because there is a problem with the charging system.

What to do when battery is completely dead? ›

"If your car does not start after a jump, your battery is likely completely dead and will need to be replaced. Your choices are to call for a towing service to bring your car to a repair shop or your residence, or roadside assistance, which may make their own attempt at jump-starting.

Can a dead car battery start again? ›

The portable jump-starter solution is sometimes the easiest. Most have electrical leads you need to attach to the dead battery, which will provide enough spark to restart your car. Some, but not all, are able to supply power to completely discharged batteries.

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