How To Charge a Laptop In a Car? Guide In 2023

With the help of all the emerging modern technologies, it is possible to charge your laptop in the car. However, certain cars come with wireless charging plates for charging high-capacity cameras or smartphones. You have to learn how to charge a laptop in a car because you need special equipment to complete your work in regular cars.

How to charge a laptop in a car?

You can quickly charge your laptop in the car with the help of this power inverter, which converts DC to AC. It provides the usual means to charge your laptop with your 12V cigarette socket.

If you have already tried to find a car charger for your laptop, you should be well aware of this task as the price for a specific charger is 60. However, it is a bit expensive and can be expected to come with the right tip, so you don’t miss it.

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Any inverter easily allows you to use 240V maximum critical devices from your car socket so that the cigarette lighter can be used to charge your laptop or other devices where most come with a USB socket.

#1 Use a power inverter.

Use a power inverter

A power inverter is usually a universal solution – it will work with any car and any laptop. 

Models such as the BASTEK 300 watt power inverter are plugged into the car’s outlet and include two standard three-prong plugs and a pair of USB ports to plug your laptop’s power adapter directly into the inverter. You will also have one or two USB ports for your second portable gear).

However, power inverters have some disadvantages. For example, they can be enormous, and cheap models do not produce pure pocket waves, damaging sensitive electronics.

1.1) Foval 200W Power Inverter

It is a 3.2-inch portable device that easily fits anywhere in your car and is 12 inches long. It has the fuse capability to protect your laptop and ensure safe charging from overheating, overvoltage, overloading, overcharging, and short circuit.

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Also, it protects the laptop from droplets and collisions when the metal is rolled up while charging. I would recommend this power inverter (attached link) on Amazon as it is integrated with a silent cooling fan, reducing heat and preventing shortages. Converting DC to AC is a great option.

1.2) Pure sine wave 600W power inverter with 1200W peak

It is the most popular heavy-duty car power inverter with 600W constant power. It comes with a 1200W instant load capacity. You can charge a laptop or two with this device, but in most cases, over-use for most. I like and would recommend this 600W power inverter. It’s not very expensive, but it gets fantastic reviews.

Those who know how to charge a laptop in a car are well aware that this inverter comes with integrated cooling fans and four internal fuses. It provides advanced protection for overheating, short circuits, overvoltage, Undervoltage, and low battery. It comes with the following accessories.

  • Two main sockets of 240V
  • 1x USB port 2.4A
  • Battery clips 
  • An additional four-screw fuse to permanently mount the inverter

1.3) Will an inverter cause to drain the car’s battery?

As I mentioned above, power inverters come in different ratings: 150W, 240W, 300W, 1200W, 2000W, and 5000W. People who do not know the exact procedure can damage their laptop by short-circuiting it. So you need to know how to charge a laptop in a car before choosing an inverter.

150W and 300W rated inverters are more than enough to charge your laptop in the car; it will speed up your car battery. You can use an inverter to cost your laptop computer even when the engine is off.

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A power inverter is useful for charging a laptop, but it will drain your car’s battery if you accidentally connect it overnight. Therefore, it is advisable not to use inverters while your car is parked; otherwise, your car battery will run out quickly.

1.4) Does power inverters harmful for your car?

If you use power inverters safely, it will not harm your car as the 12V cigarette socket is designed for a maximum 12V supply. However, the risk is what power inverter you are using to charge your laptop or other devices.

Use a branded inverter to charge your laptop in the car. Cheap inverters can damage the port or device as well as cause a broken fuse.

#2 Use a laptop charger.

Use a laptop charger

Another strategy is to use a laptop computer automotive charger explicitly designed for a specific laptop computer mannequin as an alternative to getting three-prong retailers. You can discover laptop computer chargers on-line for many laptop computer fashions, and they usually are relatively reasonably priced. Plug the charger into your automotive’s outlet, join the opposite finish to your laptop computer, and begin charging.

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#3 Use a power bank

Use a power bank

If you have a new laptop with a USB or Thunderbolt charging port, you can charge your computer in the car without adding a car. All you need is Power Delivery (PD) Power Bank. Power Delivery Power banks can provide enough power to charge a laptop via a USB-C port. Unfortunately, this solution is not an option if your laptop uses a proprietary charging port.

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Can you charge a laptop with 12v?

No, since most laptops require a 16V power supply, it has a 19.5V, 4.5MPS charger. The 12V battery may not power the laptop.

What’s the best way to charge a laptop?

Whenever possible, you should have your laptop plugged into a wall socket. You do not need to drain your laptop’s lithium-ion battery entirely whenever you use it. The battery keeps charging even when the laptop is off. If you use a laptop while recharging, it doesn’t take long to recharge the battery.

Can I use 12v charger for 19v laptop?

Well, if it only delivers 12V, it won’t work much, but if it has a box at the end that can increase the voltage to 19V, it will work fine.

Can a car charge a laptop?

To charge your laptop in the car:
1) Turn on your engine.
2) Plug your car charger into your car’s charging port (you won’t even need a car charger because many newer vehicles have USB ports that you can plugin).
3) Plug the USB-C connector into your laptop.


I hope this article has solved your question of “how to charge a laptop in a car” and will help you choose the right power inverter for you. To be extremely informative, I have suggested the best laptop car charger and the basic science behind it.

This article can help you make a knowledgeable choice, and if a friend of yours asks about this new component in your car, it will help.