> > Here's the proof - no cables attached: > > http://downloads.qi-hardware.com/people/werner/anelok/tmp/on-battery.jpg > > > Wow, it looks great! It even looks better than a lot of kickstarter "prototypes" ;)
> > While things look better now, the initial poor results may indicate > that a stronger battery may be needed. The boost converter could > also run from a single AAA cell (which would require only a > moderate size increase) but the current unstabilized battery > voltage rail (MCU and RF) would have to move past the/a converter, > which means that the converter would be continuously active. > > > You've more experience than me in this business, but I've in my "to test list" the bq25504 from TI; according to specs, it has decent efficiency with even less than 1V power and 10ua current: http://i.imgur.com/iyiiogs.png -- Felix
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