How to Make a Creative MuVo MP3 Player Run Longer

Add a bigger battery pack to your Creative MuVo MP3 player, so that it will run considerably longer

Steps

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    Buy the parts: a USB extension cord and a bigger battery holder
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    If necessary, convert the battery holder to hold batteries in parallel (you want the output voltage to be around 1.5V)
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    Cut the USB extension cord a few inches from the female end, cut back the insulation to expose the inner wires, trim back the white and green wires, and strip the ends of the red and black wires (black is ground, red is +1.5V)
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    Solder the red and black wires to the leads from the battery pack
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    Put batteries into the battery pack and use a voltmeter to test that there is a 1.5v difference between red and black wires, and between the outer outputs of the female USB connector
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    Plug the MP3 player into the USB port and check that it works
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    Affix the cable to the battery pack in a sturdy way
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    If desired, add hook and loop fasteners (e.g. Velcro) to the MP3 player and the battery pack. When you're done, it'll look something like this.

Tips

  • Variation 2: I haven't tested this, but it should work, do the same thing as above but instead of a battery pack, use a cell phone charger that has an Output of 5V and around 850mA (1000 mA is Ok, I wouldn't go higher). Any recent cell phone charger should work, but check the output (up to 5V, but 4.5v should work too, given that the AAA battery has 1.5V) before you cut that wire.
  • The battery holder I used is available at Jameco
  • For the Jameco case, the two electrical connectors on the "top" side can be soldered together like this, the end result will look like this
  • You can confirm that you're correctly emulating the normal holder by checking out what the standard holder does. Just plug the male end of your USB cable into the standard holder like this and measure the output with a voltmeter.
  • Variation 1: If you want to make your MuVo player run indefinitely using your computer as power source, use a USB extension cable but instead of getting rid of the male USB end, you'll keep it. Actually, you don't even have to cut the black and red wires, just the white and green. Just make sure you wrap it well with electrical tape when you put it back. When you're done, your MuVo will think it's connected to the battery pack, but there will be no battery to change!

Article Info

Categories: Portable Media Players