Amazon has RAVPower 10050mAh Portable Charger (2.4A Output, 2A Input, Deluxe Series, iSmart Technology) Power Bank External Battery Pack for Smartphones Tablets and more –White for 9.99 with coupon HSR8OI2F. Seller sunvalleytech.
Look for other related offers on the page as well.
Posting from ipad, apologies for formatting errors.
https://www.amazon.com/RAVPower-1…r+10500mah