Handy Portable Charger

thingiverse

You're running low on power, and your phone's at a critical 10%. You'll be out of luck until you can reach a wall outlet in just a few more hours! Lucky for you, though, that portable charger is by your side - it was smart to bring it along, because now you've got the ability to charge your device on-the-go. Just tear apart a cheap USB car adapter charger and pop a 9V battery into this simple case, and you're good to go! Simply swap out that 9V battery whenever it wears off - voila, instant portable power! You can even read up on further details in the instructions for a smoother build. Need to grab a car charger adapter first? Just take your pick at this one over on Amazon - no fuss required! Here's the link: http://www.amazon.com/Universal-Charger-Adapter-iPHONE-Samsung/dp/B00BVV1TSO/ref=sr_1_31?ie=UTF8&qid=1424884904&sr=8-31&keywords=car+charger+adapter You'll notice a circuit diagram included in the pictures that will guide you in connecting your USB with your battery. Now, while it is technically possible to do without soldering - electrical tape just doesn't cut it! It pays to wire things up properly.