How to Charge Car Battery with Home Electricity

Your car battery is the central power supplying part in your car. It preserves most of the electric energy of your car and provides electricity to the electric components in your car. Even, it starts the engine with electricity at first, then the engine starts the car. So you can imagine how important it is to charge a car battery.

A car battery gets recharged on its own when it’s running in the streets. The problem occurs when the battery goes out of charge due to some malfunctions or misuses. However, you can charge the car battery at home with some tips and tools. So how to charge a car Battery with home electricity?

In this article, You’ll know how to charge car batteries with home electricity. You’ll find ways to use an inverter and Charger to charge your car battery. We also mentioned here the different ways to charge your car battery at home. 

Charge a Car Battery with Home Electricity 

Basically, you have proven methods to charge your car battery at home. Both are quite similar and easy enough to do with comprehensive guidelines. Though they are easy, you have to keep in mind that you are dealing with electricity and your expensive car battery. However, the two methods are charging with a car battery charger and the other one is charging with home inverters.

You can recharge your car battery with any of these methods at home with some tricks and tools. Here is a step-by-step guide for the two ways to charge your car battery with home electricity. 

  • Battery Charger

Charging with a car battery charger is the first method to charge your car battery using a power supply from home. For this, you need a compatible battery charger for your car battery. Modern battery chargers have high-end technologies that can charge a car battery with no hassle.

However, here are the steps to charge a car battery with a battery charger.

  • Preparation to charge a car Battery

As you are dealing with electricity, give first priority to overall safety. Use electricity-repellent gloves in your hand. Make sure you are on a dry surface and your hands, feet, and surroundings are dry also. 

  • Remove the battery

You can’t recharge a car battery while it’s in a car. It can be dangerous. So open the hood of your car. Get to the car then disconnect the negative wire first which is black in color. Then remove the positive wire that is red. Now remove the entire battery from the car and keep it in a dry place. 

  • Setting the charger with the battery

Keep your charger disconnected from the power outlet. Attach the negative port of the battery charger to the black-colored negative wire of the car battery. Then connect the positive wire to the red port of the charger. Check all the connected wires again. Be aware of touching the wires with your bare hand. 

  • Charge your Car Battery

After setting the charger with the battery, it’s almost done. Now connect the charger to the power outlets carefully. In this phase, your car battery is recharging. It takes a few hours to charge fully, then you’ve to disconnect the power supply and charge. 

 So, How long does it take to charge a car battery? It takes 3 hours to 12 hours to charge a car battery properly. Most car batteries charge within 12 hours. But it depends on the voltage of the power supply and the capacity of your battery. In modern chargers, there is an indicator and sensor to alarm when the battery is fully charged.

  • Charging with home inverter

Charging with a home inverter is as easy as charging with a battery charger. Both of the methods are similar also. But it takes less time to charge a car battery with a home inverter. Nevertheless, you should avoid this idea if you’ve another way to recharge your car battery. Because it lessens the lifespan of a battery.

However, the main difference between a home inverter battery and a car battery is capacity. A car battery has a capacity of only 50Ah while the inverter battery has 120 Ah- 200 Ah. That’s why it can recharge a car battery so fast.

Steps to charge a battery with a home inverter-

  • Connection setup

First, make sure the inverter is not connected to the power supply. Now connect the negative port of the battery to the black wire negative port of the inverter. Then connect the positive port of the battery to the red wire positive port of the inverter. 

  • Power supply

Now check all the wire connections again. If they are all okay then plug in the inverter to the power outlet. Basically, inverters use the direct power supply of your home outlets. So wire connections in the wrong manner can cause an explosion. Be aware of it.

  •  Charging phase

As you plug the inverter into the power supply it gets into the charging phase. A home inverter takes approximately 1.5 to 3 hours to recharge a car battery. 

Safety tips for car battery

Normally the alternator recharges a car battery while it’s running in the street. If you maintain some rules, you can avoid the death of your car battery.  These rules will prevent the battery from draining. 

  • Regular driving allows the alternator to supply sufficient energy to charge the battery. So Drive regularly. 
  • Turn off the headlights, radio, and other electronic devices of your car when you park your car.
  • If you’re an irregular driver then drive your car at least once a week for a few hours. 
  • Don’t play music for a long time when your car is parked.
  • Check your car battery on a regular basis.

Final words

Charging a dead car battery at home is not such a difficult task. You can charge a 12v car battery at home with the following two methods. Both are quite similar but charging a car battery without a charger is not a good idea. Charging with a home inverter shortens battery lifespan. 

So if you’re stuck by a dead car battery, then you know the methods to charge a car battery at home. Recharge your battery with these methods and drive your car again.

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