You can get extra power from a big battery that straps to the back of your phone — but if you prefer to use your phone “naked”, the Fuel Micro Charger is a good thing to keep around.
This keychain-friendly device looks like a rusted fuel can — literally — and rocks a micro-USB port that you can use to access and/or charge the 220 milliAmp battery, which is good for about 20-30 minutes of extra juice. So no, it’s not going to get you through a full day of bad service — but it might be just enough to get you out of a jam.
NOTE: This version of Fuel does not work with iPhone. However, the company is Apple Made for iPhone certified and they’re working on an iPhone 5 Lightning connector version only.
For more info, check out the video below and the official page on kickstarter…