Recent content by Astock

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...

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...

Peace Corps. I teach math at a school in the Fouta Djallon.

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...

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...

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?

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...

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...