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How To Make A USB Battery

by jie Posted on November 27th, 2008
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Do you know that you can change a normal 9V battery into a USB one? Here’s how.

Materials Needed

  • 5.1V zener diode
  • 330-ohm resistor
  • 9V battery connector
  • 9V battery
  • Soldering gun and iron
  • Female USB connector

Step by Step Procedure

Step 1

Have the materials ready. You can get them at your local Radio Shack.

step 1-1

Step 2

Grab the USB connector and attach the zener diode to its left and right metal prongs.

step 2-1

Step 3

Solder the black wire of the 9V battery connector to the left prong. Attach the resistor to the right wire.

step 3-1

Step 4

Solder the other end of the resistor to the right prong.

Step 5

Hook up the battery to the battery connector and you’re done!

step 5-1 step 5-2

Now, you should have your very own USB battery in those times of emergency.

step 5-3

Watch The Video

How To Make a USB Battery

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