Sleek and attractive, the Innergie PocketCell has enough juice to charge your phone or your tablet. Roughly the size of a cigarette lighter, the PocketCell comes with a 3-in-1 cable, which includes a mini-USB, a micro-USB and a 30-pin Apple connector (iPhone 5 owners can use their own cables with the included USB port).
The PocketCell can extend your smartphone talk time by at least 15 hours and your tablet use time by up to five hours. As an added feature, the PocketCell turns itself off after 10 seconds of not being used, saving energy and ensuring it is ready to go when you next need it.
Price: $30 (Amazon price at press time)
Dimensions & weight: 3.6 x 1.2 x 0.8 in.; 2.5 oz.