June 15, 2011 AT 1:06 pm

A Power Band That Actually Does Something

Powerband7

Powerband9A

Steve writes

You’ve probably heard of those power bands that are supposed to boost your energy and balance …or something. You know, the ones that magically work really really well in every country except the ones with decent advertising regulations? Yeah, those. Wouldn’t it be cool if you could have a power band that, y’know, actually did something? Like, say, recharge USB devices? Yep, that’s right. It’s time again for “Build Something Weird With Steve”…

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5 Comments

  1. This project uses dry cells in series-parallel. But Ladyada says not to do this in her LiPo tutorial: http://www.ladyada.net/learn/lipoly/

  2. @jeff- that’s correct, we suggest that folks do not do that.

  3. @adafruit- I wondered about that. I ended up using NiMH cells. Assuming I’m only discharging them in the series-parallel configuration, is that still a bad idea? If so, would adding a few Schottky diodes help?

  4. @adafruit- I wondered about that. I ended up using NiMH cells. Assuming I’m only discharging them in the series-parallel configuration, is that still a bad idea? If so, would adding a few Schottky diodes help?

  5. @steve – post up in the forums!

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