Anker is one of those names that we all know and trust for battery packs. Right now their Astro E3 is on sale for $29.99, which is $50 off of it's normal price. PowerIQâ„¢ technology intelligently communicates with connected devices to maximize both compatibility and charging speed (Max speed of 3 Amps among 2 ports). 10000 mAh of capacity charges an iPhones four+ times or large-capacity phones like the Galaxy S4 more than twice. At only 0.59in thick, it's ideal for grab-n-go use. 4 LEDs display just how much juice you've got left. Reliable lithium polymer core ensures quality and supplies 500+ lifetime charge cycles. Input: 5V / 2A; Use a 2A adapter (not included) for fastest charge times (6 hours).
Anker® 2nd Gen Astro E3 10000mAh with PowerIQâ„¢ Technology for iPhone 5S, 5C, 5, 4S, iPad Air, mini, Galaxy S5, S4, S3, Note 3, Nexus 4, HTC One, One 2 (M8), Motorola Droid, Moto X, PS Vita, Gopro, most Smartphones, Tablets, PS Vita and other USB-charged devices