Some smartphone also has a reversible charger, that means you can charger laptop using a smartphone Make sure it has the exact power requirement, otherwise the laptop can’t be charged properly.

You can connect it to a power bank or standard USB charger. So, how to charge a laptop with USB?Īll you need is a laptop with USB-C port and USB-C male cable. So, you actually CAN charge your laptop through USB-C port and vice versa. It’s getting widely adopted in recent years. This port is available on some smartphones and some high-end laptops. It’s smaller than USB-B and can both supply and receive power. USB type C (USB-C) is the latest generation of the USB port. Although it can transfer power, this type of USB is never picked up by the majority of laptop manufacturers due to impractical design. The smaller version (micro USB) is still being used on some devices, such as phones, cameras, and action cameras.

USB type B (USB-B) is mostly used on printers. Unfortunately, laptops can’t receive electricity supply from this port. It can connect devices and supply power for 5V and 500 mA. Most laptops and notebooks (except the extreme thin one) have this port. USB type A (USB-A) is the most common USB interface today. Since 1996, USB has at least three major interface evolutions: