The Aibocn PC881 is a small very portable low-cost power bank that can charge most any device from a USB port.
It has a 8000mAh battery along with many other features such as Fast Charging technology.
*This unit was sent to me to review with my honest opinion and results below.
A 8000mAh battery will be able to charge most smartphones 2-3 times depending on the charge of the battery.
*This post contains affiliate links.
Read More Reviews Here on Amazon
Power Bank Portable Charger Aibocn 6700mAh 2.1A Output External Battery Pack for iPhone iPad Samsung Galaxy Tablet Android Phones, White
The Aibocn PC881 is a good unit for the price and does what it is built to do.
As always be sure to read the reviews on Amazon or elsewhere to be sure a unit is a good fit for you.