Fuel Micro Smartphone Charger
Sure, it won’t charge your phone three times over like some other portable charging options, but Devotec’s Fuel Micro does one thing better than the rest: fit in a pocket. This half-inch thick, positively minuscule gadget is roughly the size of a couple Bazooka Joes and easily slips onto a keychain thanks to its “handle”. Pop off the cap to reveal a micro-USB or Lightning adapter, ready to fuel up your phone with 220 milliamps of juice when you really need it (good for a half hour of talk time or a few more hours of standby).
Check it out here – $18+