Can You Charge Your Laptop With Usb

Can You Charge Your Laptop with USB? – A Comprehensive Guide


In our increasingly mobile world, having a laptop with a long battery life is crucial. But what if you run out of power while on the go? Can you charge your laptop with a USB cable?

The answer is yes, but with some limitations. Let’s dive into the details to help you make an informed decision about charging your laptop with USB.

Types of USB Chargers

Not all USB chargers are created equal. Here are the main types you need to know:

  • Standard USB-A Chargers: These traditional USB chargers use the USB Type-A connector, often found on computers and older devices. They provide limited power output, typically 5 watts (5V/1A).
  • USB-C Chargers: These newer chargers use the USB Type-C connector, which is becoming increasingly common on laptops, smartphones, and tablets. They support higher power output, ranging from 5 watts to 100 watts or more.

Compatible Laptops

Not all laptops can be charged with USB. Here are the factors to consider:

  • USB-C Port: Your laptop must have a USB-C port that supports power delivery (PD). This allows the USB cable to transmit power to the laptop.
  • Power Requirements: The USB charger must provide enough power to charge your laptop. Higher wattage chargers charge laptops faster.
  • Manufacturer Support: Some laptop manufacturers may not support charging via USB due to compatibility issues or safety concerns. Check your laptop’s user manual for details.

Charging Speeds

The charging speed of your laptop depends on:

  • USB Charger Power Output: Higher wattage chargers charge laptops faster.
  • Laptop’s Power Consumption: High-powered laptops require more wattage to charge efficiently.
  • Cable Quality: Using a high-quality USB-C cable with thick gauge wires ensures optimal power transmission.

Advantages of Charging Laptop with USB

  • Convenience: USB chargers are widely available and easy to carry, making it convenient to charge your laptop on the go.
  • Versatility: USB-C chargers can charge various devices, including smartphones, tablets, and laptops.
  • Space-Saving: USB chargers are generally smaller and lighter than traditional laptop chargers, saving space in your bag.

Limitations of Charging Laptop with USB

  • Not All Laptops Are Compatible: Not all laptops have the necessary USB-C port or support charging via USB.
  • Slower Charging Speed: USB chargers may not provide the same fast charging speeds as dedicated laptop chargers.
  • Battery Life Impact: Continuously charging your laptop with USB may reduce the overall battery life compared to using a dedicated laptop charger.


Charging your laptop with USB is a viable option if your laptop is compatible and the USB charger provides sufficient power. While it may not be as fast as dedicated laptop chargers, it offers convenience and versatility. Consider the limitations before relying solely on USB charging to avoid potential issues.

By following these guidelines, you can effectively charge your laptop with USB and stay powered up on the go.

Also Read: Can You Charge Your Laptop With Power Bank

Recommend: Can You Insert Sim Card Into Laptop

Related Posts: Can You Fax From Your Laptop

Also Read: Can You Connect Two Bluetooth Devices To One Laptop

Recommend: Can You Charge Your Laptop With Phone Charger

Leave a Comment