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He has powered his house for 8 years using laptop batteries

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Re: He has powered his house for 8 years using laptop batteries

#61

Earlier quoted context omitted.

If you don't have a bottom layer the sand will immediately fall

Actually thinking about it - why not have everything encased in sand all the time, you'd just have to be a kid playing in a sandbox when doing maintenance

Heat management. A battery that's surrounded by air can cool itself by convection. A battery that's buried in sand will eventually reach thermal saturation with the sand... at a temperature that it really really should not be at.

Re: He has powered his house for 8 years using laptop batteries

#62
post #2

If you want more of the story, probably start over here [0] [0] https://secondlifestorage.com/index.php?threads/glubuxs-powe...

Jesus. No cell balancing, protection or monitoring that I can see, and most importantly - wires directly soldered onto the battery instead of spot-welded. That's a fire hazard waiting to happen. People, if y'all ever build your own battery pack, please think about safety. Or if you don't, place a giant bucket of dry sand above the pack, with the bottom layer being made of acrylic or other plastic that melts. That's a…

From the article:

"Behind the success of this project lies an unwavering determination to overcome technical challenges. Glubux had to solve several problems over the years: cell balancing, electrical safety, and storage management. But his system keeps improving. For example, his energy production capacity has increased from 7 kWh to 56 kWh."

Re: He has powered his house for 8 years using laptop batteries

#64

Earlier quoted context omitted.

Edit, digging in, each single cell is fused, very nice work, and exceptionaly safe to run. As good as anything built, anywhere. https://secondlifestorage.com/index.php?threads/glubuxs-powe...

That is an astounding claim, and requires astounding proof.

I'm game, but first, would you be so kind as to give some indication of your practical or theoretical understanding of the subject of off grid, grid tie or remote/small grid or even portable power systems. I will restate that the homebuilt system under discussion is remarkable in just how simple and effectivly it has been designed to reduce risk to the lowest possible levels, ie: idivdual cell fuseing, coupled with very low power/volume density in a physicaly removed electrical building, means that the conditions for a fire are very low, the chance if that fire spreading to the whole bank are very low, and any possible, small, slowly burning fire then escaping the electrical build is low, and the chance of that small fire then injuring any unsuspecting indivuals is the exceptionaly low. The only astounding part is that the guy who designed and built it isn't bieng consulted in formalising his method for wider adoption.

Re: He has powered his house for 8 years using laptop batteries

#65

Earlier quoted context omitted.

Fair point. The problem is, the cost for such a consultation will run into the five figures, that's more than even a brand new battery pack setup from a reputable brand costs.

I don't see how a short consultation on the matter would exceed 3-4 digits. It's maybe an hour from a specialist to see what is needed. Saving your bacon later on is worth some cost. Worst case, you might also have existing recommendations or fire code/regulations for battery energy storage systems in your area, and while those specifically may be overkill they give an idea of what is considered necessary. Maybe you…

An hour for a specialist who charges in 15 minute increments. Its not hard exceeding that limit.
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