The USB-C Powerbank 20K provides optimal strength for up to 9 additional hours of battery life for your MacBook, up to 28 hours for your iPad, or up to 77 hours for your smartphone. Powerful enough to fully charge a USB-C laptop, the powerbank enables uninterrupted productivity. Convenient USB-A and USB-C ports keep your devices charged even when you're not plugged in. So you can join video conferences or stream movies on long flights. USB-C Power Delivery lets you fully charge a MacBook on the go without a power outlet. Alternatively, the fast charge feature lets you charge a compatible iPhone from 0 to 50% in 30 minutes. Instantly charge your device in no time with the included USB-IF certified cable. Thanks to the USB-C and USB-A ports, you can charge two devices at the same time.