My charger burned up, so I thought,"Why not build your own?"
Step 1: Get the parts:
1. Altoids tin.
2. Old wall/car charger that fits your cell phone.
3. Male USB.
4. 220 ohm resistor (red-red-brown).
5. LED (color is up to you).
6. Power Switch.
7. USB extension cable (just in case you can't fit the USB plug directly into your computer).
Step 2: Connect the dots...
Now I'm sure most of you know what the leads on USB ports look like, and how all you will need are the 1st and 4th leads (Red, that's your positive 5V, Black is the ground). Just cut of the white and green wires if you have them, if all you have is the metal male USB part, then you just solder wires to the first and last leads. Now connect the positive wire (negative will also work) to your power switch. Then from the other wire on the other end of the switch, connect one end of the 220 resistor (a higher resistance would also work, it just depends on high bright you want your power light to be). And from that connection between the wire comming from the switch an end of the resistor, also run a wire directly to the positive (red) wire comming from the cut-off end of the charger (you just need the side with the adapter that plugs into your phone, it should only have 2 wires, (+) & (-) ).