Dead car battery tricks can help you to start your dead car battery instantly. Your car battery can die anywhere, so some simple dead car battery hack can get you back on the road.
Whether you drive a car with a new or old car battery, a car battery can die anywhere for any reason. Therefore it’s necessary to know flat car battery tricks.
Especially now, vehicle manufacturers are also sharing some useful dead car battery tricks for car owners to try when the car battery dies.
Here, as a car mechanic, I’m going to give you and show you the most useful dead car battery tricks to start your car with a dead battery.
Dead Car Battery Tricks
Here are the top ten dead car battery tricks:
- Leave The Car For A Couple Of Minutes
- Use A Portable Jump Starter
- Trick The Car Computer By Accelerator
- Smear Petroleum Jelly On The Battery
- Jumper Cables To Jump The Dead Battery
- Use Soda To Clean The Corrosion
- Whack The Starter With A Wrench
- Rubbing The Battery Terminal
- Use Emergency Trunk Access Feature
- Connect With The Nearest Auto Repair Shop
1. Leave The Car For A Couple Of Minutes
Giving a car some time is the most useful and also the underrated dead car battery trick out there.
Inside automobile batteries, electrochemical reactions are happening all the time to provide power to the car’s electrical components.
For various and uncertain reasons, sometimes the battery stops doing electrochemical reactions; that’s why your vehicle is not able to be started.
By leaving the car for a couple of minutes, the battery can start doing electrochemical reactions again, and your car will be able to start.
But, the most common practice every car owner does is panic. When your car battery is dead, the first hack you must utilize is to give the battery some time to bring back.
I always suggest before implementing any tricks on your dead car battery, you first leave your car for a couple of minutes and then try to start the engine.
Related: What Can Drain A Car Battery When The Car Is Off
2. Use A Portable Jump Starter
Another most useful dead car battery hack is to jump-start a dead car battery with a portable jump starter.
Your car battery goes dead anytime, anywhere; even a brand new car battery can go dead; that’s why carrying a portable jump starter with your car is a great idea.
A portable jump starter adds immediate power to the dead battery to run again.
Getting help to jump-start your dead car battery from a stranger’s car is tough, especially these busy days. That’s why if you use a portable jump starter, you don’t need another car to jump-start your car.
To jump-start your dead car battery, you just need to make a connection between your car battery and the portable jump starter and also leave to get charged.
The average cost of a portable jump starter is between $150 to $270 but make sure to purchase a better quality portable jump starter.
In general, the size of a portable jump starter is minimal, so you can carry it on your car truck easily anywhere you go.
3. Trick The Car Computer By Accelerator
Tricking the car computer by pressing the accelerator is the most common trick to start a dead car battery.
We car owners sometimes find that the car battery is completely fine, still, the car makes trouble to start, but by implementing simple tips, you can trick the car computer into starting the engine again.
Now every car is controlled by the car computer. That is why if the car computer detects any issue, it doesn’t let the engine start until the issue gets fixed.
In most cases, the car computer does not allow the engine to start because of the car’s bad Coolant Temperature Sensor; for too much air, this problem arises.
Using this flat car battery trick can fix the car’s Coolant Temperature Sensor issue to get the car back on the road.
You can fix this issue instantly by pressing your car accelerator pedal or gas pedal before starting the engine.
When you press the gas pedal, it delivers more fuel to the engine so that engine gets enough fuel to start the engine.
See Also: Can A Completely Dead Battery Be Recharged?
4. Smear Petroleum Jelly On The Battery
I know you get confused after reading this dead car battery trick, but it’s worth mentioning.
Any petroleum jelly that we use for our skin in winter can help you when your car battery is dead.
The petroleum jelly contains electrical conduction, which assists the battery in supplying power to the engine efficiently.
Another benefit of smearing petroleum jelly on the battery terminal is that it can keep the battery terminal from corrosion free in all seasons.
Especially in winter, keeping a car battery from corrosion is becoming a major problem, and the excessive level of corrosion leads the car battery to die gradually.
So, to keep your car battery from dying, you should smear any types of petroleum jelly on your car battery terminal regular bases.
5. Jumper Cables To Jump The Dead Battery
The most common trick every vehicle owner does when the battery is dead is jump-starting the car with the help of jumper cables and another car.
Jump-starting the dead car using jumper cables is the best thing to do when the car battery dies completely.
To jump-start a car with a dead car battery, you are going to need quality jumper cables.
All auto manufacturers and mechanics highly recommend keeping jumper cables in the car.
You are also going to need another car with a properly functioning battery to jump-start your dead car battery.
Jump-starting the dead car is also required sometimes, but you must know the process of jump-starting a car.
Therefore, as a car owner, you should learn how to jump-start a dead car battery, and you also keep quality jumper cables in the battery all the time.
6. Use Soda To Clean The Corrosion
When your car battery dies, you might be searching why your car battery keeps dying, and among all the potential reasons, you always find corrosion.
But did you know a bottle of coke cola or Pepsi or any soda can clean the corrosion from your car battery terminal? And you might already know that corrosion is the most common sign of a dead car battery.
Using any carbonated soft drinks to clean the corrosion is a simple but effective dead car battery trick.
Corrosion on the car battery can bring various issues to the car, such as car electrical problems and decreased battery performance in the car.
Detecting corrosion on the car battery is easy and simple. If you see a greenish or white substance on your car battery terminals, that is a strong sign of corrosion.
If your car battery is dead and you also find your car battery has corrosion using this trick, you can start a car with a dead battery.
To clean corrosion from the battery, first, disconnect the battery and then pour coke or Pepsi or any carbonated drinks on the battery. Secondly, let leave the battery for a couple of minutes after then try to start the vehicle again.
Know More: If your car battery dies can it recharge itself?
7. Whack The Starter With A Wrench
The starter motor or shortly only starter is an essential component to start the vehicle. A starter delivers power to rotate the engine.
The car battery is also responsible for operating the starter. The battery also needs to supply enough energy to the starter motor, which is going to operate the engine.
But when you have a dead car battery, the starter does not deliver enough power to the engine to operate properly.
In several cases, I find for various technical issues; a starter motor can not start the engine while the battery supplies the power appropriately.
Grinding noise and starter cranks are the most common signs of a failing starter motor in a car.
To make the starter work again, you can whack the starter motor with a wrench or hammer that you have in your car.
You are going to find a starter motor on the driver’s side of your car between the transmission and your car engine.
8. Rubbing The Battery Terminal
Car battery terminals are the electrical contacts used to connect a load or a charger to the battery.
By rubbing and tapping the battery terminal, you can help the battery to supply the power to the engine while the battery is not connected properly.
As I mentioned earlier, corrosion is another common sign of a dead car battery. And corrosion also can grow inside the battery terminal.
So, tapping the battery terminal with a wrench or any metal components can shake off some corrosion from the terminal and let the battery release power to the engine.
Also, rubbing around the battery terminal also helps the battery to supply electricity to electrical components in your car.
Avoid tapping the battery terminal too hard because a strong whack on the battery terminal can damage the battery.
Use this dead car battery trick after cleaning the corrosion from your dead car battery.
Related Also: How to move your car if the battery is dead
9. Use Emergency Trunk Access Feature
When your car battery is dead, access to the car trunk becomes necessary to find anything to start the engine again.
Every car’s essential tools are stored in the trunk, from jumper cables to wrench. That’s why you must open the car trunk when your car battery dies.
In most modern cars, you have a feature called “Emergency Trunk Access” that allows you to open your car trunk even if you have a dead car battery.
Using this feature in the car, you can open the trunk while the battery is dead completely, and you don’t need to open the trunk with the key.
Therefore, use the Emergency Trunk Access feature to open the trunk while the battery is dead.
10. Connect With The Nearest Auto Repair Shop
After you have tried all the tricks to start your car with a dead battery and found out your car does not start, it’s time to call a professional.
Modern days getting car service in the middle of nowhere is also possible. Roadside service is very popular and also easy to connect. An auto repair shop is also the option where you can call to jump-start your dead car.
By using your smartphone, you can connect with the closest auto professional who can get your dead car back on the road again.
The internet is the easiest way to connect with the nearest auto repair shop.
Open up your Google Maps on your smartphone, submit your current location where you are standing, and search auto repair shops around that location.
You are going to find several auto repair shops or professional options to choose from. Now choose the service that is the closest to your location.
Call them directly from your smartphone, tell them your situation and send them your exact location.
In the United States, roadside service is very popular and convenient, so you can get help from any roadside assistance.
But before making a call to connect with any auto mechanic or roadside service, you should try some tricks to start your dead car battery first.
Related: Car Keeps Dying, Battery And Alternator Are Good
What Are The Signs Of A Dead Car Battery
The Car battery gives you some signs that the car battery is going dead or going flat. So, it’s necessary to know what are the signs of a dead car battery.
By noticing a few warning signs that the battery is going to fail, you can make enough preparation that saves your time and also money.
Some most common signs of a dead car battery:
- Check Engine Light ON
Vehicle check engine light flashes or on for various issues in a car. Check the engine light to determine that your car is experiencing any engine issues. Fortunately, if your car battery goes dead, check engine light also stays on, so don’t forget to inspect your car battery.
- Bump on Battery or Swollen
When you see a bump on the battery, that is called a swollen battery. Swollen battery size is another common dead car battery sign. For alternator overcharging, the battery becomes swollen, which leads the battery to be dead completely.
- Car Headlights Dim
The battery supplies power to every car’s electrical competence, and headlights are a major electrical component of a vehicle. When the car battery is falling, you are going to see headlights dim frequently.
- Vehicle Start Then Dies Immediately
A battery provides electrical power to the starter to crank the engine. But when the car battery is dead, it already has a lack of power; that’s why you are going to see the car start and then die immediately.
- Excessive Corrosion On The Battery
Excessive corrosion on the battery terminal is the most common sign of a dead car battery. Corrosion doesn’t let the battery supply electrical energy to the car’s electrical components.
- Odd Smell From The Battery
A car battery smells when the battery is leaking acid, and this is a strong sign that your car battery is going to flat. The smell of rotten eggs is very common from the battery you might experience when the battery is dead.
Conclusion – Dead Car Battery Tricks
Dead car battery tricks are easy to follow, and car owners should know them before going for a drive, especially for a long drive.
The most important trick to starting a dead car battery is keeping a portable jump starter on the car because using a portable jump starter; you can start your dead car battery anytime without another car.
The most common practice is jump-starting the vehicle when the battery goes flat; that’s why you must keep quality jumper cables in your car.
Another useful dead car battery hack is leaving the car for a couple of minutes and then trying to start the engine if your car battery is dead.
Try to notice dead car battery signs so that you can repair or replace the dead car battery before getting in any trouble.
For a new car owner who has no experience with a dead car battery, I always suggest calling a professional when the car battery is dead.
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Hey there,
How is it going?
I’m Meraj Sarker. I am a Car Mechanic and a student of Automobile Restoration here in Florida, USA. I’ve been studying automotive for around 9 years now. So you can rely on my recommendation. For me, studying and getting knowledge about automobile it’s really fun and entertaining. I will help you to get solutions for your car through this website. If you need any help let me know.
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Hello, Alex
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