Charging a Car Battery without a Charger

by Phil Borges // in Car

Has your car battery failed you in the past? Have you ever been stranded with a dead battery and no way to charge it up?

It's pretty frustrating when you're out on the road and your car battery dies. If so, then this article is for you.

The good news is, it doesn't have to be a total disaster! We're going to get you back on the road in no time.

There are a few clever ways that you can charge up your battery without using an actual charger. We're going to cover some clever ways that can get a car running again.

These methods are easy and anyone can do them - from kids to grandparents. They require little effort but will help save the day if you find yourself in need of an emergency solution.

How To Charge a Car Battery Without a Charger?

We need to diagnose first the causes of a dead battery and learn some tricks to empower you with information about how it happened so that if a similar situation arises again, then not you will be able to identify what is wrong but also find out more ways of charging your car without an external charger like using jumper cables or other things around us!

Your car battery is the perfect partner for your engine: it gives the power to start the motor and charges up when you drive. It powers the lights and other electrical components of the vehicle and can be replaced without a lot of fuss if need be. 

Your vehicle needs a functioning battery because, without one, there's no way for electricity to reach important systems like lights or ignition.  But what do you do when it's dead?

The most common cause for this issue is simply not driving enough to start up all necessary systems in order to charge them adequately before running out of juice.

So, here are several different techniques that are both simple and inexpensive to charge a car battery without a charger:

Jumpstart the car

To get a dead battery up and working, find some jumper cables. Make sure to pick the right ones for your car as different gauges have different thickness of cable which will help you decide what is best suited for it.

The most important thing when using these wires is that they are fresh and not old or corroded because this can damage both batteries in an instant by sending them too much power before one has had enough time to recover from drainage.

You have to make sure that there are no children near the working area as safety is the best top priority to be considered.

Take time to read your user manual before performing any tasks in your car.

One of the most common causes of electrical shock is when handling jumper wires. It's important to make sure that you're not touching any metal while connecting them up or getting in contact with anything else they might touch because this could cause a circuit that would zap your body and give you an electric shock.

For safety, it's best if you wear protective glasses as well as gloves so that there isn't even the slightest chance of accidental skin-to-skin contact happening during these processes.

1.Jumpstart by using another car

This is a relatively easy process of connecting jumper cables to the other car.

First Step: Park both vehicles side by side and turn off the engine to avoid any electrical issues.

Second Step: Clean the terminals with a wire brush or cloth. The battery is usually located on top of the engine, but it can vary depending on your make and model. Use caution when handling batteries because they are heavy and contain acid which will burn you if not handled properly.

If you look around for a while, it should be easy to find where the positive terminal is located with its red cover labeled (+) next to an all-black negative terminal (-). Cleaning these terminals can ensure that your car starts up again in times of need.

Third Step: Connect the red cable to the positive terminal of your car battery and connect a black cable to the negative connector. Make sure that the connection is tight.

Fourth Step: Connect one end of the other red jumper cable to the positive terminal on the good car's battery, then attach a second black cable from that same side onto its negative terminal.

You're now ready to start the working vehicle and wait a minute or maybe a bit longer depending on the other car's condition.

Fifth Step: If your car won’t start after the first attempt, and if the vehicle just cranks over with no sound when starting or if this is only happening after a few tries, don't give up. Keep trying and you might be able to get it started.

Sixth Step: Now that both cars are running, disconnect the cables in the exact opposite order they were connected.

If you're not sure how to do this, refer back to your manual on what color cable goes where and follow those steps carefully so that wires don't get crossed or mixed up by accident.

Seventh Step: Take a short drive with your car to allow recharge to take place and let the alternator do its work.

Another option - with the help of a home inverter

The process of using a home inverter to charge up your car battery is one that not many people are aware of but it can be done with the right equipment and if used properly, shouldn’t present any issues.

The idea behind charging up your car battery by plugging in an inverter into household power isn't well known, which means you'll need some extra gear for this method; however since it doesn't produce as much voltage from sources like solar panels or generators due to safety reasons (among others), once every so often will work just fine without causing any problems.

The Inverter is an electrical device that is used to convert the alternate current (AC) from a wall outlet to a direct current (DC). This is essential for reliable, battery-powered operations. Here are some ways on how you can apply this method safely and efficiently in your car.

  • To set up the inverter, first, disconnect it from all power sources. Connect one of its negative terminals to a battery's black terminal and then attach another wire on the other end that connects with any red port found on an inverter panel board or breakers box.
  • Double-check all the connections and make sure they're in place. Next, plug this inverter into an available power outlet.
  • Some may find this process an easy way to charge the battery through the use of an inverter. This will typically take 1-3 hours, but it's worth doing in a hurry if you need the energy right away.


Is there any way to re-juice a dead battery?

Yes, dead batteries can be recharged in many ways like jump-starting the dead one with another functioning vehicle or using chargers and wall outlets.

Is it safe to charge the car battery through a wall socket?

Yes, it’s safe to charge the car battery through a wall socket as long as safety precautions have been taken.

How do you know when to charge the battery?

The best way to tell is by checking your car’s voltage and if it drops below 12 volts, then it might be time for a recharge. You can also check this with a voltmeter which will measure how much power is being put out in.

Why is my car battery dead?

The most common reason why cars batteries die is that they need recharging and power from other sources like jump-starting or inverters.

How long does it take to charge up a battery?

Charging time varies depending on how deeply discharged your battery is, but you should have enough juice to start most cars after about 30 minutes of charging for smaller batteries and up to an hour or two for larger batteries.

Is there an auto parts shop that offers free charging services?

Yes, some auto parts shops offer free charging services to their customers.

One good example is Autozone which is a company that offers free battery testing and jump-starting too. They also have a battery charging station in many of their stores.


To avoid having an issue with your car battery it is always best to charge it up or use an appropriate charger when necessary.

But in cases where chargers are not available, it is good to learn some clever emergency solutions on how to charge a car battery without a charger which was detailed in this article.

You may not have known how easy it is, it may not be the best option for everyone but it is worth knowing about and it might just work in an emergency.

We hope that the instructions given above will help you out if you ever find yourself stuck with no way of charging up your car battery because the charger is not working or simply unable to work as it should.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.