Recent content by Astock

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    Amplifying the voltage from a homemade battery.... In rural Africa

    Yeah, it's sounding like auto batteries might be the way to go. There is in fact a controller between the panel (it's probably 50W iirc). The batteries are in fact stored inside in the shade. I'll let y'all know what comes of this...
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    Amplifying the voltage from a homemade battery.... In rural Africa

    Btw, didn't plan on replicating that puny thing they made in a glass jar. They have these rectangular 10L "bidons" i was thinking of using. Perhaps it'd be possible with 8 cells of that size? Assuming I can find that much brass and steel sheet metal...
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    Amplifying the voltage from a homemade battery.... In rural Africa

    Peace Corps. I teach math at a school in the Fouta Djallon.
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    Amplifying the voltage from a homemade battery.... In rural Africa

    Unfortunately no. This feeble economy here out in the brush would never be able to afford to get rid of a vehicle (or parts therein) that have any utility whatsoever. Cars that are abandoned have had everything -- wiring harnesses and all -- repurposed. I'd just as well buy a new auto battery...
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    Amplifying the voltage from a homemade battery.... In rural Africa

    Isn't that what opamps are for? Gain = -R1/R2, I am sure you're familiar with that most basic configuration. Either way, I'm open to buying a commercial product to do this if it comes down to that. If you read the paper, it involves anodizing (with reasonable voltages and common chemicals) both...
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    Amplifying the voltage from a homemade battery.... In rural Africa

    Aha! Thanks, I knew perhaps getting the technical terminology right might help me find stuff online easier. So, do you think it would be easy to implement a step-up converter?
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    Amplifying the voltage from a homemade battery.... In rural Africa

    Thanks for the replies. The feasibility of the battery is another question. Let's assume I have a working battery. Even if the capacity of my battery per cm^3 is 1/5 that of a commercial battery, that's fine. I'll make it big, the supplies are cheap. I'm not trying to amplify the power. I'm...
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    Amplifying the voltage from a homemade battery.... In rural Africa

    Hi PF! Though I've lurked here for some time, this is the first time I've created an account. I'm a volunteer in a country in West Africa. The school I teach at has a tiny library with 4 small dell PC's and a printer that were donated some time ago. A grant was used years ago to buy a battery...
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