Lowest price on the Anker Astro candy-bar sized battery pack
by Mark Frauenfelder from on (#3AE90)
I have a few different phone charging batteries, and the 6700mAh Anker Astro candy-bar sized battery is my favorite, because it's the perfect combination of itty-bittyness and high-capacity. It'll charge an iPhone 7 twice. My wife adopted mine so I just bought another. The price is $13.19, an all-time low on Amazon.