Introduction: Battery Powered USB Charger

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About: I have always enjoyed taking things apart and putting them back together as a child, and learning how they work. As I got older I began to fix electronics and when I was 13 I bought my first soldering iron. It…
In this instructable I will be making a tutorial on building your own portable battery powered charger to charge all your USB devices!

Step 1: Obtain Parts

-9v battery clip (two is better but one works fine)+ batteries (rechargeable are more efficient)
-Female USB port (salvaged mine from a USB hub
-7805 regulator (or any other regulator that outputs 5v@1-2 amps.
-Altoids tin (or any other housing)
-Optional switch

Step 2: Identify Pins

You need to identify the pins for the positive and negative on the USB and also the input/output of the regulator.

Step 3: Begin Soldering/Assembly

-If you are using one battery skip this step: solder the positive of one clip to the positive of the other battery clip and do the same to the negative (series)
-Solder the negative coming from power to the first pin of your regulator
-Solder the negative from the USB and the negative from the power to the middle pin of the regulator
-Solder the positive from the USB to the third pin of your regulator

Step 4: Schematic