How to Charge Phone With Laptop

How to charge phone with laptop can be a good question for many people. Especially charging the phone with the laptop when the phone is out of battery.

As you know, most laptops come with a USB port. So using your phone charger through the USB port is a common way for many people. Please follow this blog and learn the details about how to charge a phone with a laptop.

How to Charge Phone With Laptop?

Think of a situation for a second where you are on the road and your phone is running low on battery power. The only problem is that you’re nowhere near a power point to charge it up. That’s when you need to find another way to charge your phone. Here are some tips to help you charge your phone with a laptop.

A mobile phone has access to a cellular radio system so it can be used over a wide area, without a physical connection to a network.

Laptops on the other hand are portable computers also known as notebook computers. We can fold the laptops. A laptop contains a rechargeable battery. A laptop has a built-in keyboard and touchpad. It also has a thin LCD or LED-based screen. Laptops are energy efficient. They are much quieter than desktop computers.

The laptop also includes a power adapter. That allows them to use power from an outlet and recharge the battery. For charging your phone with the laptop you first need to purchase a USB cable from a mobile phone provider’s store that is compatible with your phone model.

How to Charge a Laptop With USB-C Cable?

If your laptop has a built-in USB-C port then you’ll be able to charge your laptop via a USB-C  cable. You just have to make sure the cable has a plug adopter (the box-shared plug at the end of your phone charger than can play into an outlet). Some laptops, in fact, use a USB-C cable as the primary charger.

How to Charge a Laptop With USB-C Cable

The USB cables provide four pathways. Two power conductors and two twisted signal conductors.

The USB device that uses full-speed bandwidth devices must have a twisted pair of D+ and D- conductors. The data is transferred through the D+ and D- connectors while Vbus and Gnd connectors provide power to the device.

Laptop USB ports are often of version USB-2.0 or USB-3.0 which both have a 5-ampere power source. This is quite slow but it works in charging your phone. Although it takes much more time than a normal charger. Nowadays USB-3.1 port has the ability to provide the current to any external device even if the laptop is shut down. SO one can charge any device with the help of a laptop even if the laptop is not powered on.

The steps for charging the mobile phone with a laptop include connecting your USB cable to any USB port and connecting your mobile phone with the other end of the cable. The mobile phone will start charging. But remember some important points in this case.

  1. The batteries wear off faster so remember to disconnect the phone and the laptop before they reach 100% capacity.
  2. Holding too much charge or too low also wears off the batteries.
  3. Depending on your laptop model, you may be able to use one of its USB type-c ports to charge your phone.

Tips on Charging the Phone Faster

Though plugging your phone into a laptop or a desktop is a very slow way to charge your smartphone battery you can still get it a bit faster by following these tips.

Any device including mobile phones and tablets charges super fast when turned off. Switch off your phone before you put it on charging and see the difference.

Advantages of Charging a Phone With a Laptop

The main advantage of charging a smartphone from a computer is convenience. Those users who constantly work at their computers have convenient access to USB ports.  While the computer is running you can easily charge your smartphone. Not all computers allow you to charge your smartphone when they are turned off. This option is available in laptops that have 3.0 or higher version USB ports.

There are various types of laptops and different laptops have different USB ports. The USB port which is used by laptops is generally 2.0 and 3.0. The USB 3.0 port is quite faster than the USB 2.0 port. The USB 2.0 port of the laptop is used to transfer the data and the 3.0 port is used to transfer the data and also to charge any device. The USB port is generally used to transfer the data and in some laptops, the port is used to charge the phone. The USB 2.0 can charge the phone with a speed of 2 Amp and the USB 3.0 port can charge the phone with a speed of 3 Amp.

Disadvantages of Charging a Phone With a Laptop

Charging a mobile phone with a laptop may decrease battery health a bit. So it is always advised to use it in severe cases where you have no other option. Also, disconnect the device once it is charged 100% to avoid overcharging. Overcharging of batteries reduces battery health and causes less battery backup than usual.


We all are aware of the fact that our phones are our lifeline, and we can’t go out for a day without our phones. Smartphones have become the main source of entertainment for the youths. We love to watch movies, play games, go on social media, and have a lot of fun on our phones. But when the battery gets less, we are unable to do anything with our phones. So, it becomes necessary for us to keep our phones charged. But there are times when we are not able to charge our phones, for example, when we are traveling by train. So, in that case, you can charge your phone with your laptop.

We hope you enjoyed our article about how to charge your phone with a laptop. With this knowledge, we know that you can make the most of your phone, especially if you’re on a business trip and you’re left without a power source.

So what are you waiting for? Give it a try!

You can also read other articles from 10Besties Knowledge base by clicking here or may go to the home page by clicking here.

Suggested Readings:
How to Charge Your Laptop Without a Charger?
Difference Between Thunderbolt 4 Vs Thunderbolt 3
How to Connect Airpods to Laptop Windows 10?
How Long Does a Laptop Battery Last?
Fahad, Mohammad.
Fahad, Mohammad.

Hi, I am Fahad, Mohammad. I am an Assistant Professor of Computer Science, a researcher, a die-heart entrepreneur, a blogger, and an affiliate marketer. I have many research articles published in reputed journals of the world. I also love to write about technology after my 20 years of experience in this field. I hope you will love this blog.
Don't forget to keep in touch with me through our contact us page, if you have any queries or suggestions.

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