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Id just personally go with replaceable parts. AA NiMHs are like $1 to $2 these days, and 6V 5Ah lead acid is like $20 (Lol, first hit on google is $4 from some
by dragontamer 4y ago
Id just personally go with replaceable parts. AA NiMHs are like $1 to $2 these days, and 6V 5Ah lead acid is like $20 (Lol, first hit on google is $4 from some no-name brand).
Replace the battery every few years and you're set. Rely upon mass production, standard part numbers and highly recyclable parts (lead acid wins at this).
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Lead Acid is particularly good at UPS style power usage patterns. It's very easy to perpetually trickle charge lead acid.
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If you're set on Li-ion, then use a standard 18650 cell, so you know that you'll always be able to buy a replacement. But given the attributes I see here, lead acid probably wins. So you have to replace a part every 3 years that costs $5 to $10, big whoop.
- lll-o-lll 4y agoNo, no, no! This is the post-apocalypse laptop! You can’t go off buying new batteries in your mad-max car. It’s gotta work from that solar panel!
- post-it 4y agoA post-apocalyptic backyard garage could conceivably recycle a lead-acid battery, they're pretty simple.
- dragontamer 4y agoAnd in a Mad-Max future (lots of cars around, but not enough fuel), there will be plenty of Lead Acid batteries laying around to recycle. I do consider it effectively an apocalyptic kind of battery design. It was invented in the 1800s, its chemistry is incredibly simple (Sulfuric Acid + Lead), and is very well studied.
- kragen 4y agoAs it happens, I've spent a lot of time over the last week talking to a guy in Romania who's trying to fix a sulfated lead-acid battery in his backyard garage. (I don't know if you've been to Romania, but the apocalypse happened 40 years ago there, so his available resources are kind of limited.) I think he's going to succeed, and may eventually progress to being able to recycle the lead into a new battery, but it's not going to be a weekend learning process or even a week-long one. He reports that it's a "very complex electrochemical device". The USPTO (?) has assigned the code H01M10/06 to lead-acid battery patents. https://patents.google.com/?q=(H01M10%2f06)&oq=(H01M10%2f06) https://patents.google.com/?q=(H01M10%2f06)&oq=(H01M10%2f06) finds 44'593 patents in this category. You don't need any of them to get a working lead-acid battery, but a significant subset of them are going to be helpful. Some are order-of-magnitude improvements.
- grugagag 4y agoWhat kind of apocalypse happened in Romania 40 years ago?
- dragontamer 4y agoI presume he's talking about the collapse of the Soviet Union, which caused a huge amount of upheaval in that area. But I'm a poor student of modern history. Just throwing out a guess for now.
- grugagag 4y agoThat sounds like the opposite of an apocalypse
- dragontamer 4y agoEventually it was good for Romania but IIRC, the initial collapse was very bad for the locals. But again, I'd say that Eastern European modern history is my weakest subject by far. I probably should avoid talking about this subject lol.
- kragen 4y agoRight, but I got the time interval wrong; it was only 30 years ago.
- initramfs 4y agoi prefer the phrase "anti-apocalyptic." Because by designing an energy efficient laptop/phone, less lithium/capacitor resources are manufactured and everyone can have one, unlike that single coke bottle in that 80s movie, "The Gods Must Be Crazy" which will lead to one. ;)