If you’ve picked up any Apple MacBook after 2016, or just got a ASUS Zephryus 14 laptop, you can use a high-power battery pack to extend their life by several hours. As more computers begin to support USB-C PD charging, these power banks have become a really smart investment. Recently, a technology called USB-C PD (Power Delivery) has made its way onto some high-capacity battery packs, which allows them to output enough power to charge a laptop. It’s designed to charge your phone when you can’t get to an outlet during a long flight or night out. If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission.īattery packs have become extremely popular, and you probably already have one that can fit in a pocket or purse.