Ever needed your mobile to catch a pic or share something and just then your battery runs out. Recently I was checking out of the ones on eBay (see pic) for portable or external mobile chargers and just realized I could make that ad started to build one. At the end I realized it wast so hard and it cost me around 10$ while the orginals were around 30$. And also looks quite like the one on ebay as in the pic.
In this tutorial Im going to show you how to build a simple portable mobile charger. This has a USB output so you can you can plug in various types of mobile phones. So you can stop searching for a charger and start sharing. More ever this is portable and can fit in ur pocket easily . This charger gives a constant output of 5v at 1amp.
Step 1: Parts
2)USB input pin
3)Rechargeable 9V battery
4)A case to get all of this in.
6)Power input pin (see the pic)