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Rebuilding Lead Acid batteries - The street method
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SilverSolder:

--- Quote from: TerraHertz on March 05, 2021, 11:43:27 am ---[...]
>12. [Edit: The re-sealing method]

Next time I have to rejoin some injection-molded plastic parts, I'm going to try that. Just set it on fire!

[...]

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It didn't seem that different to using a plastic welder - the main difference is that we would expect a temperature controlled device, but obviously having it very hot works too, as long as you don't mind the smoke! :D
Tomorokoshi:

--- Quote from: NiHaoMike on March 05, 2021, 12:47:32 pm ---
--- Quote from: TerraHertz on March 05, 2021, 11:43:27 am ---Some years ago I was in China for a while. Passed a small welding shop guy, arc welding on the street front with absolutely no eye protection. I don't know how he wasn't blind within a day. Skin cancer within a month. But he'd obviously been doing it for decades.
Here he'd be in trouble just for exposing passers by to the arc light.

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Perhaps the oiled paper has pinholes? The newspaper seems to show behind his glasses lenses. That should work fairly well, especially if he partially shielding the arc with his torch. His welder isn't that big either, although I couldn't see the machine. The cable and the torch are relatively small. Probably the equivalent of one of those 115V units.
ChemTalk:
Interesting studies here on absorbing lead through the skin, involving battery workers. Maybe this guy was part of the study?

https://pubmed.ncbi.nlm.nih.gov/12529920/
https://www.researchgate.net/publication/6953865_Skin_Absorption_of_Inorganic_Lead_PbO_and_the_Effect_of_Skin_Cleansers

What's surprising, is how washing can make the absorption rate increase. The amount of lead absorbed is not large, but repeated over many years, will add up.
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ChemTalk
Chemical Elements


Refrigerator:

--- Quote from: SilverSolder on March 02, 2021, 09:18:30 pm ---
There's a reason most car batteries cost north of $100 nowadays...

In a developing country, that just isn't realistic.

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Yeah, i've noticed that lead acid batteries hover around 1€/Ah where i'm from.
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