Can You Charge a Laptop With USB | Complete Guide

Can You Charge a Laptop With USB

A laptop is a mobile device, and as such, it must be charged regularly. If you own a laptop and find yourself away from an electrical outlet, you might be wondering how you can charge your laptop. While there are several different ways to do this, USB is one of the simplest ways to get your laptop back up and running.

It is possible to charge a laptop with a USB, but there are some things to consider before doing so. In this article, we will discuss the pros and cons of charging a laptop with a USB and provide some tips on how to do it safely.

Different Ways to Charge a Laptop

There are several methods by which you can charge your laptop if the battery drains and your work is interrupted. Some of the most noticeable methods are discussed next.

Using a Universal Power Adapter: A universal power adapter is the most basic and easiest way to charge a laptop. It is used to charge all laptops, regardless of their model.

This adapter is very useful when you are using your laptop for work or studying and want to charge it at the same time. You can use this adapter to charge your laptop in places like homes, hotels, and even airports.

Using a Power Bank: The most obvious way to charge your laptop is by using a power bank. It is the simplest way to charge a laptop and can be used when you are on the go.

These are portable battery packs that can be connected to your laptop easily. They can also be used to charge other devices like mobile phones, tablets, and cameras and are not very expensive. Moreover, they are also available in many sizes and can be easily carried around.

Using a Smartphone: Most of the time when you are on the go and your laptop battery drains, you can charge it using a smartphone. 

You can use a smartphone to charge your laptop easily. All you have to do is to connect the phone to the laptop via a USB cable and charge the laptop with it. It is a simple process, but it may not be the most convenient way to charge your laptop.

Using a USB Type-C Adapter: This is the most recent standard for charging, and it is what you will find on the newest MacBooks and other laptops. Plus, it is one of the most traditional methods to charge a laptop. 

There are two ways to charge a laptop with a USB Type-C Adapter. The first is to use the adapter as a power source, so it charges the battery. The second on the other hand is to use the adapter as a data transfer device. You can use the adapter to charge the battery or transfer data to your laptop.

Using a Super Battery: Super batteries are available for charging laptops and other devices. They are known for their high power capacity and long life and are also known to be the best option for long-term power backup.

However, these batteries are more expensive than regular batteries. So, if you are not in a position to buy a super battery, then regular batteries can also be a good option to charge your laptop.

Using a Car Battery: This is one of the simplest methods to charge a laptop. All you need is a car battery, a charger, and a laptop. Moreover, the car battery should be of the same capacity as the laptop battery. 

This method is good because it is very fast and it is one of the easiest ways to charge your laptop. However, it has a disadvantage because it is not as safe as the other methods.

Pros of Charging a Laptop with a USB

Mentioned below are the advantages of charging a laptop with a USB:

  • Increased Speed and Power: The USB is a type of universal connector, which is connected to the USB port of the laptop and provides increased speed and charging power.  
  • It is a great choice for laptops, is highly reliable, and is easy to use.  In addition, it also has a power delivery capability of 1.5A.
  • Charging a laptop with a USB is faster than charging it with an AC adapter. However, the speed of charging depends on the type of laptop and its power consumption. 
  • Convenient and Easy Process: Charging a laptop with a USB is very convenient and easy since the USB port is present on almost every laptop. It takes only a few minutes to charge a laptop with a USB and it also saves a lot of electricity.
  • Portable Method: A USB is a portable method to charge a laptop. If you are traveling or want to take your laptop on the go, then you can use this method for charging your device without any hassle.
  • Environment Friendly: Charging a laptop with a USB is environment friendly because there is no need of plugging in a wall charger and also it does not generate any kind of waste. This process is noise-free and easy to apply.

Cons of Charging a Laptop with a USB

Mentioned below are the drawbacks of charging a laptop with a USB:

  • Takes a while to Charge: One of the major drawbacks of charging a laptop with a USB is that it takes a long time to charge. This is because you need to charge the laptop from the power adapter since the power consumption of a laptop is high and a lot of power is required to charge a laptop.
  • Potentially Damage Battery: If you charge a laptop with a USB then you can potentially damage the battery. The charger uses the laptop’s own charging system and may use up the battery’s own power.
  • So, if the laptop is not plugged into the wall socket or is being charged from an external power source, then there is a chance that the battery might be damaged earlier than its estimated lifespan. 
  • Overheating Issues: Overheating is one of the major issues that people face when charging a laptop with a USB. This is due to the fact that laptops are designed to have a low power supply to avoid overheating. So when a laptop is charged with a USB, it creates a lot of heat. 
  • Need a Special Cable: A USB cable is a normal plug with a round-shaped end. If you are planning to charge your laptop with a USB, you need a special cable that has a USB plug on one end and a regular plug on the other end. You need to buy this cable separately and it will cost you additional bucks.


Charging a laptop with a USB is a great option for many people, but at the same time, it can be quite a tricky, challenging, and hassle process for others. 

Not everyone is familiar with the process. It’s important to know how to charge a laptop with a USB, whether you’re charging it yourself or asking someone else to do it for you.

Some people prefer to charge their laptop with a wall outlet, while others use a power bank to charge their laptop with a USB. There are pros and cons to each method already discussed above, and you’ll need to decide which one is best for you. 

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