Amazon is offering Solove Titan 20000mAh ultra slim power bank (Gray, Silver) for $31.99 (= $44.99 - $13) w/ Amazon Prime Free shipping after coupon code SOLOVE13: Gray: http://www.amazon.com/20000mAh-Porta.../dp/B00XJ26EHE Silver: http://www.amazon.com/20000mAh-Porta.../dp/B00ZK4P2CC CNET's Pick - "Seriously, these slim, rounded, metallic beauties look like they should have an Apple logo stamped on the top." ULTRA-SLIM. Built with high quality rechargeable Li-Polymer battery, and hard aluminum alloy construction. Solid and portable, it is convenient to carry at anytime and anywhere. ULTRA HIGH CAPACITY. Packed with 20000mAh battery, charges the iPad Air almost twice, the iPhone 6 Plus/ 6S Plus about five times, the iPhone 6/6S at least seven times, the iPhone 5s ten times, the Galaxy S6 seven times and other smartphones multiple times. DUAL USB PORTS. With the 5V 3.1A output ports, charges two 5V devices simultaneously while on the go, fastest charge speed up to 2.1 amps, universal fits for iPhone 6/6 Plus/5S/5/4S/4, iPad, iPod, Samsung devices, HTC phones, tablet PCs, digital cameras, game consoles and MP3/MP4 players, etc. FULL PROTECTION. Equipped with sophisticated over-current, over-voltage, over-heat protection circuit, keeps your charger and devices safe at all times.