Can laptops be charged via USB port with a power bank ?

Hi, can be laptops charged via USB port with a power bank ? Can I plug power bank to laptop's USB to charge it ?

Some new laptops support charging from powerbank via USB. But in case of many laptops, after you plug power bank into USB port, your laptop will start charge the powerbank.

You can use powerbank to charge your laptop if it has a USB-C port dedicated for charging. Before you start charging, check if powebank has the right volts and amperes.