Charging a car battery with home electricity might be confusing to you. But, Yes, you can charge your car battery with home electricity. There are many ways to charge a car battery without a charger.
As a car owner, you might have had an experience of a dead car battery. You go somewhere and notice your car battery is dead; you don’t have a car battery charger; what do you do then? You can charge the car battery at home with inverter.
Surprisingly, most car owners don’t know the proper way to charge a car battery at home. If you don’t know, you don’t need to worry.
In modern times, people really tend to be at home and work from home. People also want to maintain their cars at home.
If you are one of these men, then this tutorial will help you to stay at home. I will show you how you can charge your car battery at home. So, Let’s know the proper way to charge car battery with home electricity.
How To Charge Car Battery With Home Electricity
When you charge a car battery with home electricity, you can charge your car battery using a home inverter or charge your car battery using a battery charger. Both ways help you to charge your car battery at home.
First of all, you need to remember that a car battery is a significant part of a car. Without a car battery, your car doesn’t go anywhere. That’s why you should always try to take care of your car battery.
Be aware of car battery leaking and dead cells is good practice to maintain your car batteries’ good health. Frequently checking the car battery also will keep your car battery from any failure.
Here are some methods of charging your car battery with home electricity:
Method 1: Using a Home Inverter
You can charge your car battery at home using your home inverter. The home inverter is a device that can provide power to electric appliances.
A household inverter or home inverter is just like a battery that consumes the power and transfers the power when needed.
Nowadays, home inverters have become more affordable and much more powerful than earlier. Usually, a home inverter has a 12V lead-acid battery.
Although the home inverter is 12V, a home inverter can be compatible with a high range of voltage. The car battery will take less time to be fully charged than a battery charger.
But, you should always remember, home inventors or household inverters are not designed or made to charge car batteries.
You should not charge car battery at home with inverter frequently. If you charge your car battery with home electricity too frequently, your car battery’s voltage may get fluctuation problems.
However, you can follow this charging process when it’s an emergency. This process of charging your car battery is easy and more accessible.
Step 1: Setup The Connection
Whenever you need to charge a car battery, you have to make the connection. Whether you charge your car battery with home electricity or battery charger, if your battery and charging connection is not right, the battery can’t get the proper charge.
- Make sure your home inverter is not connected to the power supply before setting up the connection. We will connect to the power supply after connecting all connections properly. If your home inverter is connected to the power supply, it can damage or harm your battery.
- After you checked the home inverter, now you need to connect the battery’s ground or negative cable to the black wire of the home inverter. Test battery cables if needed.
- You need to connect the battery’s positive cable to the red port of the output’s positive port in the home inverter.
Step 2: Supply The Power From The Home Inverter
If you have a home inverter at home, you might know that a home inverter uses your house outlets’ direct power.
- Before turning the power supply on, you have to check all connections properly.
- If every connection between the car battery and home inverter is alright. After that, you need to plug the inverter into the power outlet of your home.
Step 3: Let The Battery Get Charged And Finish Up
After you connect all of the connections properly and plug the inverter, you just need to leave it to recharge.
Charge a car battery using a home inverter; it might take less time to charge completely. The battery takes around 1.5 or 2 hours to be charged completely.
You already know that a home inverter or household inverter is a high voltage power supply. That’s why if you want to fast charge with home electricity, this method can help you.
But, you should not charge a car battery with a home inverter frequently. A car battery won’t be able to hold charge for charging a car battery with a home inverter frequently.
Remember, if connecting wires are not properly connected or wrong, car batteries might explode. Exploding a car battery is a total mass; I’m sure you don’t want that.
Even if your car battery didn’t explode, the car battery could face some serious issues, including acid leaking for the battery and so on.
So, you need to be extra careful when you charge a car battery using a home inverter.
Method 2: Using A Car Battery Charger
Charging your car battery with a battery charger is another way to charge car battery with home electricity.
From car manufacturers, you will get battery charger recommendations and read the process of battery charger properly.
Modern car battery chargers are more advanced and well equipped. One feature you will love about a modern car battery charger because the charger will automatically discharge after completely charging your battery. Using a modern battery charger, you can avoid overcharged your car battery.
Step 1: Prepare The Car Battery For The Charge
Prepare the car battery properly for the charge. Make sure you use a compatible car battery charger to charge the battery.
- First, you need to take safety measures.
- Where you place the car battery, check the surface properly. Make sure the surface is clean and dry, not wet.
- Before you connect any wire, you should read the battery charger’s user manual to know it properly.
Step 2: Take Out The Car Battery And Clean
Removing the car battery is relatively easy. If you are a car owner, I hope you already know how to remove the battery from the car.
Another thing, if your car battery is dirty or you haven’t cleaned the battery for a long time, you should clean the battery and battery terminal.
For those who don’t know how to remove the battery from the car. Follow these steps below:
- To remove your car battery, you have to open the hood of your car.
- After opening the car hood, you will see your car battery. Now, disconnect the battery’s wire. First, disconnect the negative (black color) wire and then disconnect the positive (red color) wire.
- Now you just take out the battery from your car.
If your car battery has so much dirt on the surface, it can impact the battery’s power absorbance. That’s why you need to clean the battery surface in the first place.
Here are quick ways to clean the battery surface:
- The easiest way to clean the battery surface is to rub the surface with sandpaper to clean the battery surface.
- With baking soda and a wet cloth, you can clean the battery by rubbing it properly.
- Mix water and baking soda in a glass and then apply on the battery and rub with a toothbrush.
Step 3: Setup The Battery Charger And Battery Connection
Connecting setup is the same as method one. But, as I said earlier, you should be more careful whenever you charge car battery with home electricity.
- First thing first, you need to make sure your car charger doesn’t connect with the power outlet of your house.
- Now, you make the connection between your car battery and charger. The negative or ground (black color) wire needs to connect to the negative port of your car battery charger. And positive (red color) wire needs to connect to the positive port of the charger. Better to remember is learning the proper grounding process of a car battery is necessary for every car owner.
- Check all of the connections between the car battery and the car battery charger. If everything is right, you should carefully connect the charger to the power outlet of your house.
- If you do the whole process rightfully then, your car battery and battery charger’s connection is completely set up to charge.
You need to remember when you work around car battery charging, you need to be careful about this, especially when you charge your car battery with home electricity.
After you set up the connection between the car battery and charger, do not touch the wire with your hands. Make connections properly; otherwise, the fire might be caught in the connection.
Step 4: Let The Battery Get Charged And Finish Up
After you have connected properly, you need to give the battery charge and wait for it to be completely charged.
Your car battery will take a longer time to charge using a battery charger than a house inverter.
Your car battery may take 3 hours or 8 hours, and even more; charge time depends on your power supply’s car battery capacity and voltage.
If you use a modern car battery charger, you get notified when the battery will be charged completely. So, a modern charger can help you not to overcharge your car battery.
You can also learn how to charge a car battery with home electricity from YouTube:
Safety Tips For Changing A Car Battery
Whether you charge your car battery with portable charger or home electricity, you have to take proper safety measures.
As you know, an automobile car battery fills up with acid. The most common automobile car battery is a Lead-acid car battery.
A lead-acid car battery contains hydrogen-oxygen gases that can explode. Another thing your car battery contains is sulfuric acid which can cause severe burns. And it’s better to neutralize battery acid before work.
Follow these safety tips for charging a car battery with home electricity:
- Wear safety glasses or goggles.
- Wear proper clothing to protect your face, hands, and body.
- Place a damp rag on top of the battery.
- Make sure battery vent caps are tight enough no to fall easily.
- Where you place your car battery, make sure that area is well-ventilated.
- Do not forget to keep the battery out of the reach of children.
How To Charge A Car Battery With A Wall Outlet
Charging a car battery with a wall outlet is quite simple and easy. Charging a car battery with a wall outlet is another method of charging a car battery with home electricity.
In order to charge a car battery with a wall outlet, you will need a car battery charger. The process of charging a car battery with a wall outlet is almost the same as charging with a charger.
You can charge your car battery inside the car, but as a car mechanic, I recommend you remove your car battery then charge it. Place your car battery to charge outdoors or in a garage.
Here is the process of charging a car battery with a wall outlet:
Step 1: Safety Measure
Take proper safety measures. You should wear safety glasses or goggles. Make sure to wear clothing that covers your face and hand.
Another thing you need to make sure there is no gasoline or flammable substances like rags, paper near the car battery. The car battery surface should be dry and clean.
Step 2: Add Distilled Water To The Battery
After you take proper safety measures, you need to add distilled water into your car battery until the water covers the battery’s internal plates.
It’s not necessary for a maintenance free battery. Do not overfill the battery with distilled water.
Step 3: Make A Connection To The Battery Charger
Car battery and battery charger connection should be in the proper way. Connect the battery charger’s red cable to the positive pole on the battery.
And connect the battery charger’s black cable to the negative pole on the battery. You should wiggle the connection a few times to know the connection is working properly and securely.
Step 4: Finish It Up
Now, you just need to plug the charger into the wall outlet. And leave your battery for charging.
Remember, the connection between the car battery and battery charger is most important. So, follow the instructions properly and surely.
How To Charge A Car Battery With A Portable Charger
A portable car battery charger is the charger that you carry on your car, and using a portable charger; you can recharge your car battery anywhere and anytime.
The portable charger is different from a typical battery charger. The Portable chargers don’t need to be plugged in a household outlet or anywhere to recharge the battery because it holds the charge.
Here is how to charge a car battery with a portable charger:
In order to charge your car battery with a portable charger, you have to have a portable battery charger, jumper cable, driver’s manual and safety gloves. Do not skip the safety measures to charge a car battery.
Step 1: Check The Driver’s Manual
Most of the time, car owners charge their car battery with a car battery charger at home. But, sometimes, a portable car battery charger would be the only way to recharge the battery.
For less experienced, you should check the car manual before hook up the portable battery charger.
Step 2: Connect The Jumper Cable
The battery positive terminal has a red post cap and has a + sign. The negative terminal has an opposite, black color post cap.
Connect the red cable to the positive terminal of your car battery and attach the black cable to any heavy metal within the engine.
Step 3: Turn On The Portable Charger
You need to turn on the portable charger to recharge the car battery. You also should set the proper charge level on the charger.
Step 4: Start The Engine
Wait two to four minutes for the portable charger to recover the battery first. Place the key to ignition and try to start your vehicle. If the car doesn’t start, try to hold the key for a few seconds.
Step 5: Remove The Cables
If the car starts, then leave the car to be the engine running. When the portable battery charger shows your battery is charged, you will need to remove the cables and keep them in your car again.
Frequently Asked Questions (FAQs)
How long does car battery last without driving?
Good condition car battery charge will stay at least 2 to 3 weeks or 14 to 18 days without recharging the battery or running the car.
If your car battery charge gets empty before 2 weeks, that means your car battery is not right.
To keep your battery charged, you should recharge the battery when it’s needed, and you have to run your car at least once a week.
How can I charge my car battery at home?
There are several ways you can charge your car battery at home. The best way to charge your car battery at home is using the battery charger.
But, you should use a compatible battery charger to charge your car battery and avoid overcharging the battery.
Is it safe to charge a car battery with a home inverter?
Charging a car battery with a home inverter is safe. But, you need to remember that Frequently charging a car battery with a home inverter is bad, which can harm your car battery cells.
You should charge your car battery with a home inverter when you don’t have another option.
As you know, all car battery manufacturers recommend charging your car battery with a car battery charger.
What’s the difference between a home Inverter battery and a car battery?
The main difference between a home inverter battery and a car battery is the amount of current provided.
Car batteries can consistently contain huge amounts of current and produce into the car electrical system.
On the other hand, the home inverter can’t contain huge currents, and it produces less current than a car battery.
How can I tell if my car battery is fully charged?
In order to tell your car battery, you need a voltmeter. A voltmeter reading will display your car battery volts.
If the voltmeter displays a voltage of about 12.7 to 12.9 volts, this means your battery is fully charged.
If your car battery’s voltage shows above 13.8, that means your car battery is overcharged. Overcharging a car battery is not good for your car battery.
This is the complete guide on how you can charge your car battery with home electricity.
If you follow this process of charging your battery, you will not need to be a professional but you have to be more careful.
But, you shouldn’t charge your car battery with a home inverter frequently.
Your car battery might get hurt and be dead if you frequently charge your car battery with an inverter, power supply or wall outlet.
These processes you can follow only when you are in an emergency situation.
Proper safety measures are mandatory if you want to charge your car battery.
Follow the safety tips for charging your car battery to avoid any coincidence. And if you didn’t do it before, then you should be more aware.
Now It’s Your Turn
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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.