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Building a 2.5kWh battery from disposable vapes to power my workshop [video]

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Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#151

Earlier quoted context omitted.

Can you cite a single instance where home insurance claim was refused because the homeowner was stupid?

https://www.abc.net.au/news/2022-07-06/couple-denied-aami-ho...

Okay, I suppose I asked for that, exposing my US-centric thoughts. I meant in the US :).

In the US, insurance covers stupidity. At least once -- your insurer may drop you after they pay out. As long as you don't have an exclusion in the contract covering a particular type of stupidity, and you are not committing fraud, you will be covered.

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#152

Earlier quoted context omitted.

Can you cite a single instance where home insurance claim was refused because the homeowner was stupid?

https://www.abc.net.au/news/2022-07-06/couple-denied-aami-ho...

Looks like that case was resolved to the policyholders satisfaction, so not a good example at all. Besides that, the denial was because they were, in actuality, not in compliance with their policy, not because they did something stupid. It was a stupid denial because the violation was extremely in the “well, technically” category, and had nothing to do with the loss.

https://www.insurancenews.com.au/daily/egg-side-hustle-claim...

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#153
post #3

Just curious: if you wanted to do something like that, but prevent a... thermal event, how would you protect an experimental battery realistically? Build a brick enclosure? A fire safe?

If it reaches thermal runaway... there's not much you can do. There's simply too much potential energy in the pack.

https://www.reddit.com/r/SweatyPalms/comments/1gbryd1/factor...

Throw it in a massive body of water is about as good as you can do until the energy is depleted. (Also, making a human perform the puncture to initiate a violent chemical reaction is WILD. Do better)

https://www.reddit.com/r/interestingasfuck/comments/1nuo0fj/...

For real dev work... essentially special sheds with massive ventilation to handle thermal runaways, rated by amount of kwh.

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#154

Earlier quoted context omitted.

> A 12 year old i7 server runs my NVR, home automation setup, web server, and network router (not to mention a small handful of other services) without even breaking 25% CPU usage. We could replace so many data centers with old desktops. Replacing concentrated and highly optimized data center servers with 10-1000X as many old desktop computers idling away at 50-100W or more would be a terrible tradeoff. That would ex…

I did the math a few years back on how long you would have to run old machines to (roughly) offset the carbon emissions instead of purchasing new hardware. This included all mining, refinement, manufacturing, shipping and electrical savings from more efficient processors. A big part of this is the very intense amount of energy producing the silicon wafer from Quartz ingots. While they weigh only a few grams of the to…

The solar panels required energy to create, too. I don't think that it would take centuries for replacing Cray 1 with a Raspberry Pi 5 to pay for itself in carbon intensity, even if both are powered by solar panels. The Cray example is seemingly uncharitable, but the principal is the same because if the only relevant thing is solar power, then it should take centuries in that case too, right?

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#155
post #69

Earlier quoted context omitted.

When I think of what's out there I think of cheapy ARMs, maybe STM32 knock offs. Honestly the F103C8T6 is so prolific that's probably a solid chunk of all processors in existence. And then things like ESP32s. So to not see ARM or Tenscillica on there is a bit weird. But maybe I'm reading too much into it and it's more of a thought experiment

Looking at that list, collapse OS seems to cater to 8-bit only. It’s also aimes at “ built from scavenged parts” boards. I’ve often come across Hitachi h8, Blackfin, PIC, avr, the occasional ARM and other controllers in the wild. But they all have one thing in common: the flash is locked and inaccessible without some jtag tools. The only times you’ll see external flash (winbond & co) is with an fpga or a controller w…

I mean there are countless examples of IoT devices getting hacked because they didn't do that but I guess

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#156

Earlier quoted context omitted.

Looking at that list, collapse OS seems to cater to 8-bit only. It’s also aimes at “ built from scavenged parts” boards. I’ve often come across Hitachi h8, Blackfin, PIC, avr, the occasional ARM and other controllers in the wild. But they all have one thing in common: the flash is locked and inaccessible without some jtag tools. The only times you’ll see external flash (winbond & co) is with an fpga or a controller w…

I mean there are countless examples of IoT devices getting hacked because they didn't do that but I guess

The iot devices are hacked on the application layer. You have a controller running some linux distro and you work your way in over tty/telnet/eth. That’s an entirely different ballgame than repurposing 8-bit avr or 32-bit STM microcontrollers.

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#157

Earlier quoted context omitted.

No, the "doesn't matter" issue is that they'll try to deny you when something else starts a fire.

Indeed. It's that "something else"'s fault that the fire started. You should blame them... only in this case: that's yourself.

What? Myself?

Are you still talking about the battery starting a fire, and saying that it's my fault rather than the battery's fault? Because that's not an "indeed". I'm talking about non-battery fires.

If you're on the same page as me, and talking about non-battery fires... What makes it my fault?? Are you saying any possible fire is my fault? With the implication that insurance shouldn't pay out for any fires ever??

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#158
post #78
post #28

After all networked smartphones and computers were placed under control of the regime, resistance hackers relied on microcontrollers harvested from ordinary household devices like smart lamps and vape pens to slowly rebuild the covert but resilient mesh internetwork that became known as FreeNet.

Someone write a novel please. Not sure who will be more appropriate: Stross (more fun?), Stephenson (more of a slog through the first 600 pages, then an abrupt 180 and frenetic action in the last 100 with newly introduced, yet game-changing characters?).

It's not the greatest piece of fiction ever written, but Robert Evans of Behind the Bastards podcast has a pretty easy read[1]. It's also offered as a free audiobook read by him as a series of podcasts.

[1]https://en.wikipedia.org/wiki/After_the_Revolution

Might not be what you want if you want more technical & hacking versus dystopian capitalism collapse. But he gets bonus points for Texas getting nuked as a lore point.

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#159

Incredible how wasteful we're being. Market-driven economy will doom us all Edit: I'm not saying I have a better alternative, but this system is deeply flawed

Disposable products in general should be much better regulated by the countries of the world.

Re: Building a 2.5kWh battery from disposable vapes to power my workshop [video]

#160
post #28

After all networked smartphones and computers were placed under control of the regime, resistance hackers relied on microcontrollers harvested from ordinary household devices like smart lamps and vape pens to slowly rebuild the covert but resilient mesh internetwork that became known as FreeNet.

The FreeNet is an amazing and wonderful solution to the current problem of a free network. At least for me :)
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