How to Charge a Car Battery Without a Charger

One of the worst moments of driving a car is the sudden failure or won’t Stay Running the start that never gives an earlier alert before it happens; one of them is when you come to take your car and you are too late for your work or a meeting, and finds that your vehicle doesn’t start you try to turn the key but there is no hope, the first glimpse that pops in your mind that there no fuel, or dead battery, you have to know what you can do in this embarrassing moments that and how to handle this situation in order to get your vehicle up and running.

How to charge a car battery without a charger

In this guide, we’re going to figure out what it means to have a dead battery, the symptoms, how to diagnose it like an expert, and how to charge a car battery without a charger using any possible element around you.

Having a battery in your vehicle is an essential part of it because it supplies needed current to the vehicle and the main purpose of having a battery is to feed the starter motor which starts the engine, once your engine running the electrical systems of the vehicle is supplied through the battery being charged with the alternator.

So, getting your battery dead means that you won’t be able to start your vehicle normally. Also, any electrical system connected to the car is dead, so here are some techniques to awaken your battery without a charger.

how to charge a car battery without a charger or another car

Jumpstart your car

This means getting your battery up and working using the power of the other battery through a jumper cable; you don’t need many tools or deep mechanical knowledge to get this job done important thing is to pick a good set of jumper wires, jumper wires usually come in a variety of lengths ranging from 10-20 feet, but never prefer the longer ones because the longer the cable the more energy might be lost, so the shorter ones may be better, another tip helps you choose the right jumper cables is the thickness of the cable the thicker the cables the stronger they are trying to choose gauge 6.

Some safety tips are also something you have to know and keep in mind; you should consider all safety risks before performing any maintenance or repair in your vehicle. first make sure that there are no children near the working area; take a moment to read the user manual of your car to know if there is an additional step in jumping start your car, you should be careful of electric shocks when you handle jumper wires once you connected them to the cars you should not touch metal clamps it is also recommended to wear protective glass and gloves

Charge a car battery with a wall outlet using a home inverter

Using a home inverter to charge up your car battery isn’t a very well-known method and requires some more equipment; you shouldn’t use this method frequently; you can use it once in a while

Inverters are the electrical device that is used to convert alternate current (AC) provided from a wall outlet to the direct current (DC) that is supported by a car battery here is how to apply this method

Step 1: The first thing the inverter should be disconnected from the power supply before setting up connections, connect the negative port of the battery to the black wire of the inverter, and the positive port should be connected to the red port of the positive port of the inverter

Step 2: double-check the connections and make sure that it is as above, then plug the inverter into the power outlet.

Step 3: the high power supply that comes from inverters may charge the battery from 1.5 to 3 hours, this easy method should only be used when you are in a hurry.

Frequently Asked Questions (FAQs)

Q: Can a completely dead battery be recharged?

Yes, a completely dead battery can be recharged using many ways such as jump-starting your car, using chargers, or using wall outlets with inverters.

Q: How do I charge a car battery with a wall outlet?

Yes, using inverters to convert the AC current to DC that comply with car batteries

Q: Can you charge a battery in the car?

Yes, by plugging the charger in the car and letting it do its job, might take some time depending on the capacity and technology of the charger.

Q: How long does it take to recharge a dead car battery?

The speed of charging depends on the result that you want to acquire because fast charging may damage the battery cells, the best-case scenario is long time charging on low Amps, usually standard car charger giving 4-15 amperes but for maintenance usage for dead battery 2-4 amperes it will take 24 hours to fully charge.

You May like: How Long Does it take to replace a car Battery: All that you need to know 

Q: Does AutoZone charge batteries for free?

Sure AutoZone can charge your battery for free while you are waiting, they have dura last fast chargers that can charge your 12V battery in 30 minutes.

Final Words

You have to keep in your mind that this situation usually strikes you when you’re in hastiness, so make yourself ready for this kind of situation by keeping the charging gear with you whenever you go because it may get you saved from many bad situations, and be careful when dealing with batteries because making short circuit wiring connections may be led to system failure and burnt chips, so if you confused something or having any doubts working with it you have to seek advice from some expert mechanics or go to the professional garage.

We hope you already understand how to charge a car battery without a charger safely. If you have any quarries or observations no hesitate to just let us know our expert teams will guide you better understand.

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Hi there, I am R. Hasan Tito, a mechanic, and owner of this website. My friend and I created this website to share our knowledge, expertise, and experience with our fellow mechanics' community and car users. I am a specialist and certified automotive mechanic (Both Heavy Commercial and Private Cars). I worked as a Mechanic and Mechanic Supervisor for over fifteen years at Global Rebound Automotive companies - Toyota, TATA, BMW, Nissan, TVs, and Others. Now, I enjoy my new role of leading a team of automotive experts (in their respective fields) and publish new content on a regular basis on my website and social media.

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