Lumina 5200 mAh Ultra Compact Portable Charger External Battery Power Bank with High-Speed Charging Technology $5.94

Amazon Lighting deal has this at $12.74. After 40% coupon applied at checkout it becomes $5.94 with free 2 day shipping for prime members. Pretty slick deal I thought.
https://www.amazon.com/gp/product…2KJH&psc=1