How Do You Make A Creative Muvo MP3 Player Run Longer?
• Buy the parts: a USB extension cord and a bigger battery holder • If necessary, convert the battery holder to hold batteries in parallel (you want the output voltage to be around 1.5V) • 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) • Solder the red and black wires to the leads from the battery pack • 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 • Plug the MP3 player into the USB port and check that it works • Affix the cable to the battery pack in a sturdy way 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.
