Can You Revive a Totally Dead Car Battery? (Find the Truth)

Published on: September 29, 2022
Written by Chris Dominic / Fact-checked by Nova Scarlett

If you have a totally dead car battery, there is a way to revive it. However, it is important to note that this will only work if the battery is not damaged beyond repair. To revive a totally dead car battery, you will need to charge it for at least 24 hours using a charger that delivers at least 10 amps.

can you revive a totally dead car battery

Once the battery is fully charged, you should be able to start your car. If the battery is still dead, then it may be time to replace it.

  • Start by checking the battery terminals to see if they are corroded
  • If they are, you’ll need to clean them off before proceeding
  • Next, check the voltage of the battery using a voltmeter
  • If it reads 12 volts or less, the battery is dead and will need to be replaced
  • If the battery voltage is above 12 volts, try jump-starting the car with jumper cables attached to another working car’s battery
  • If the car still won’t start, there may be an issue with the starter motor or alternator and you’ll need to have those checked by a mechanic

Can a Completely Dead Car Battery Be Recharged?

In short, yes a completely dead car battery can be recharged, but it may not hold a charge as well as it did before. The reason being is that when a battery dies, it loses some of its capacity to hold a charge. This is why it’s important to not let your battery die completely; if you do, you may notice that it needs to be recharged more often than usual.

What Do You Do If Your Car Battery is Completely Dead?

Most people have experienced a dead car battery at some point. It’s always a pain, especially when it happens at an inopportune time. If you find yourself with a dead battery, you may be able to push start it. This is only possible if your car has a manual transmission. there are a few things you can do to try and get it started again:

Check the connectionsThe first thing you should do is check the connections. Make sure the cables are properly connected to the battery terminals. Sometimes corrosion can build up on the terminals and prevent a good connection.
Try jump-starting the carIf the connections are good, then try jump-starting the car. If jump starting doesn’t work, then your next step is to replace the battery. You can take it to a mechanic or an auto parts store to have it done, or you can do it yourself if you’re feeling ambitious.
Replacing the batteryReplacing the battery is usually pretty straightforward and shouldn’t take too long. Once you’ve replaced the battery, be sure to drive around for a while so that the new battery can charge up. Then park in a safe place and disconnect the negative cable from the battery (this will help prevent any accidents).
Clean up any corrosionFinally, clean up any corrosion on the terminals and reconnect everything properly before driving off into the sunset!

How Do You Revive a Dead Car Battery at Home?

If your car battery dies, you may be able to revive it with a simple at-home trick.

  • First: Check the battery terminals to make sure they are clean and free of corrosion.
  • Next: Attach a set of jumper cables to the dead battery and then to a live battery. You can fully charge a car battery with jumper cables.
  • Finally: Start the car with the working battery and let it run for a few minutes before trying to start your own car. If this doesn’t work, you may need to replace your battery.

If your car has a bad battery, it may not run. The starter needs electricity to turn the engine over, and if the battery can’t provide that power, the car won’t start.

How Can I Get My Dead Battery to Work Again?

If your battery is completely dead, it’s probably not going to work again. But if it’s just partially discharged, there are a few things you can try to get it working again. First, connect the battery to a charger and let it charge for a few hours.

If that doesn’t work, try using a jump starter or booster pack to jump-start the battery. If that still doesn’t work, you may need to replace the battery.

how can i get my dead battery to work again?

How to Bring a Completely Dead Car Battery Back to Life?

A battery is considered dead when it can no longer hold a charge. If your car battery is completely dead, there are a few things you can do to try and bring it back to life.

1. First: Check the connections. Make sure the terminals are clean and tight.

2. Next: Give the battery a full charge using a charger or jump starter. Once the battery is charged, test it by starting the car and letting it run for a few minutes.

If the car starts and runs without issue, then your battery is most likely fine. However, if the car still won’t start, then your battery may be beyond repair and will need to be replaced.

How to Make a Dead Battery work again?

Do you have a car battery that won’t hold a charge? If so, you’re not alone. Even the best batteries will eventually die.

But just because your battery is dead doesn’t mean it’s time for a new one. With a little effort, you may be able to bring it back to life and extend its lifespan. Here are some tips on how to make a dead battery work again:

1. Start by cleaning the battery terminals with a wire brush or other similar tool. This will help remove any build-up of corrosion that may be preventing the flow of electricity.

2. Once the terminals are clean, use a voltmeter to test the voltage of the battery. If it’s below 12 volts, it’s considered dead and will need to be recharged.

3. To recharge a dead battery, hook up an external charger and let it run for several hours until the voltage is back up above 12 volts.

4. Once the battery is recharged, try starting your car again and see if it works.

If not, there may be other issues at play and you’ll need to consult with a mechanic for further diagnosis.

Flat Battery Vs Dead Battery

“Flat battery” and “dead battery” are two terms that are often used interchangeably, but there is a big difference between the two. A flat battery is one that has lost its charge and needs to be recharged. A dead battery, on the other hand, is one that can no longer hold a charge and needs to be replaced.

So, what causes a battery to go flat? There are actually a few different things that can contribute. For starters, if your car sits for too long without being driven, the battery will slowly lose its charge.

This is why it’s always a good idea to give your car a quick drive around the block every now and then even if you’re not going anywhere specific. Another common cause of batteries going flat is leaving lights on overnight or for extended periods of time. Even something as seemingly innocuous as leaving your dome light on can draw enough power to flatten your battery over time!

So, be sure to check all your lights before you leave your car unattended for an extended period of time. If you find yourself with a flat battery, the best thing to do is hook up a charger and give it some juice. You can also try jump-starting it with another car if you have jumper cables handy (just be sure not to follow the instructions!).

If neither of those options works, then you’re probably looking at replacing the entire battery.

flat battery vs dead battery

Car Battery Dead After Sitting

If you find yourself with a dead car battery after sitting, there are a few things you can do to try and revive it. First, check the terminals to make sure they’re clean and tight. If they are, then you can try charging the battery with a trickle charger or jump-starting the car.

If neither of those work, then unfortunately the battery may be beyond repair and will need to be replaced.

People Also Asked

Can a Completely Dead Battery Be Recharged?

A battery is considered dead when it is unable to hold a charge or power any device. While there are ways to revive some types of batteries, others cannot be revived once they are completely dead. The most common type of battery used in electronic devices is the lithium-ion battery.

These batteries can sometimes be recharged even after they appear to be completely dead. This is because lithium-ion batteries do not have a memory, meaning that they do not need to be fully discharged before being recharged. However, if a lithium-ion battery has been left uncharged for too long, it may no longer be able to hold a charge and will need to be replaced.

Other types of batteries, such as lead-acid batteries, cannot be recharged once they are completely dead. Lead-acid batteries contain lead and sulfuric acid, which react together when the battery is in use. Over time, this reaction slowly damages the battery until it reaches a point where it can no longer hold a charge and must be replaced.

How to Revive a 12-Volt Battery?

If your 12-volt battery is dead, there’s no need to replace it – you can revive it with a little elbow grease. All you need is some time, patience, and the right supplies. With a little bit of effort, you can bring your battery back to life and extend its lifespan.

To revive a 12-volt battery, you’ll need:

  • Distilled water A clean cloth or paper towel
  • Safety goggles Rubber gloves A funnel (optional)

First, put on your safety goggles and rubber gloves. Next, remove the battery from the car or other device it powers. If the battery terminals are dirty, clean them off with a cloth or paper towel.

Once the terminals are clean, open the caps on top of the battery cells. You should see either water or white powder inside – if the powder is black or brown, that means the cell is sulfated and cannot be revived. If all the cells look like this, it’s time to buy a new battery.

If at least one of the cells contains clear water, proceed to step three. Using distilled water (not tap water!), slowly fill each cell until the liquid reaches just below the level of the lead plates inside – don’t overfill! You can use a funnel to make this easier, but be careful not to spill any water on yourself or nearby surfaces. mostly, you will need to add about 1/2 cup (120 ml) of distilled water per cell.

How to Charge a Dead Car Battery at Home?

If your car won’t start, it may be because the battery is dead. You can charge a dead car battery at home with a few simple supplies. First, you’ll need a charger.

You can use a standard household outlet or a jump box. If you’re using a household outlet, make sure it’s one that you can easily access from your car. Next, connect the positive terminal of the charger to the positive terminal of the battery.

Finally, connect the negative terminal of the charger to the negative terminal of the battery. Once everything is connected, turn on the charger and let it run for about 30 minutes. After 30 minutes, turn off the charger and disconnect all of the cables.

Start your car and see if it starts up! If not, repeat this process until your car does start.

How to Bring a Dead Lead Acid Battery Back to Life?

Lead acid batteries are one of the most popular types of batteries used in vehicles and other applications. However, they can die if not properly maintained. Luckily, there are ways to bring them back to life.

If you have a lead acid battery that won’t hold a charge, it’s likely because the cells have sulfated. This happens when the lead sulfate crystals build up on the lead plates inside the battery, preventing electrical current from flowing freely. While this may seem like a death sentence for your battery, there is hope.

There are a few methods you can use to de-sulfate a lead acid battery and get it working again. One popular method is called “pulse charging.” This involves applying short bursts of high-voltage electricity to the battery to break up the sulfate crystals.

You can also try using an acidic solution to dissolve the sulfates. Be careful with this method, as it can be dangerous if not done correctly. If you’re not comfortable working with chemicals, it’s best to leave this one to the professionals.

Once you’ve desulfated your battery, it’s important to take steps to prevent future sulfation. This includes regularly cleaning your battery terminals and keeping them free of corrosion. You should also keep your battery charged as much as possible – at least above 50%. It’s important to know that If you have a newer car, the battery will charge while driving. 


If your car battery is totally dead, it’s possible to revive it with the help of a jump start. However, you’ll need to take some precautions to avoid damaging your battery or your car. Once you’ve jump-started your car, be sure to drive around for at least 15 minutes so that the battery can recharge itself.

Used Resources:

Rate this post

Leave a Comment