The Eton Boost4200 gives you the boost you need, being a powerful backup battery pack with a 4200mAH lithium ion battery that provides long-lasting reliable power whenever and wherever you need it. Fast and efficient, when fully charged Eton Boost 4200 Battery fully charges most smartphones two times - and it also charges tablets - so you're never caught powerless. With its sleek and elegant design, Eton Boost4200 Lithium Ion Battery fits in the palm of your hand. It features a Micro-USB DC input to use with most smartphone chargers or computers. It packs enough power to charge a smartphone twice, and with its 5V=2.1A output, it can even charge tablets. An LED charge indicator enables you to monitor the battery charge level when you give it a quick shake. Whether you're traveling for work, for pleasure, or just around town, let Eton Boost4200 Phone Charger provide the power you need to stay fully charged wherever you are.
Eton NBOB04200B: Boost 4200 Backup Battery, Black
Eton NBOB04200S: Boost 4200 Backup Battery, Anodized Aluminum