It would appear their 800% claim came from this video.
13% battery, being boosted to 1.5volts, so the indicator shows 100%...
I guess seeing as batteries store 1.5volts of energy, it all makes sense!
I tested the trackpad and found the cutout voltage to be 0.95V. I posted that in another thread. If I need to buy a wireless keyboard and go through that too I will. Pretty sure I will get the same result since I doubt they use a different radio.
The Garmin Dakota is a pretty old GPS. It can be had off Amazon, but I'm not sure about local availability.
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Dr. Bob,
Can you please retract your more, shall we say, "optimistic" claims? That way we don't have to keep on going down this road. I will source these devices, and I'm fairly certain we both know what I'll find.
I want to think that you're a good person that has been trapped into this Silicon Valley startup lottery mania. I want to think that this marketing campaign has been hatched out of investors' needs for a miracle device, instead of a good device that solves a true problem for users of legacy or poorly engineered devices. And the latter is a FINE business model, and shame on the lottery culture for not supporting what could be a nice business. I would love to see you and your brother succeed and making such devices better.
We are engineers. We have a social responsibility to telling the truth. When we abandon the truth, society suffers, and we lose credibility. Will any great tragedy result from the mere doubling up of boost converters? Almost certainly not. But the failed promise will simply bring discredit to the profession. It will be yet another opportunity for someone to sneer, "well that's what engineers said about <fill in the blank>."
That does not mean we don't make mistakes. We all do, and that's why we have peer review. This venture seems like more than a mistake. If I thought you were a fool, I would dismiss it as such. But, you are not a fool. You are a highly educated man and I'm sure you are aware that the truth is being substantially "bent."
Please reconsider what you're doing.
Thanks.