ATC via Amazon offers the Lumsing 13,400mAh Portable Battery Pack
in Gold, Black, or Silver for $23.99. Coupon code "I78ZH6L7" cuts that to $12.99
. Plus, Prime members bag free shipping
. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.37.) That's $24 off list, $2 under last month's mention, and the lowest total price we could find. It features two charging ports and an LED flashlight. Deal ends August 28.