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/diy/ - Do It Yourself

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>> No.1154535 [View]
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1154535

Maybe you guys can help me out?

I have a small battery powered device that the charging port stopped working. I never used it away from a USB port so I figured I would just power it from USB directly.

It had a 3.7V 400MaH battery, so I took that out and put this in its place. http://www.ebay.com/itm/272461399550

Now the thing turns on then immediately turns back off. So I'm thinking it needs a little more MaH then that converter provides. So should I toss in a capacitor or some shit?

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