[0] https://secondlifestorage.com/index.php?threads/glubuxs-powe...
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 about the only thing that can stop a battery fire.
Honest question: is this a real hack that people do in these situations or did you just come up with it?
In any case, dry sand is one of the methods firefighters use to put out battery fires, the other being dumping it in a giant vat of water (that's what's done for electric cars) or class D fire extinguishers which are extremely fine powdered salt.
There is no fire safety there. Let's just hope the shed is very far from a house, fences, trees, bushes, or anything else that could catch fire and close any "air gaps" and cause harm.
https://secondlifestorage.com/index.php?threads/glubuxs-powe...
"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."
Why is this bottom layer important?
This is a questionable setup though. You'd need massive amounts of sand dumped evenly, which requires more design and verification. Acrylic is also itself flammable.
A basic water based fire suppressor would not extinguish a battery fire but it will cool it and the room, limiting spread.
Let the experts design this kind of thing.
Just curious.
External monitoring is made by Victron, who initially did electrical solutions for boats. Their inverters are also very popular and pretty great.
Also, brick walls are kinda nice I have to admit, along with an exhaust for any fumes.
I guess another possibility is to have the battery pack outside, attached to the brick wall, and ideally away of direct sunlight... but then no wooden roofs. It looks like no DYI is really feasible except maybe a concrete bunker as others have suggested. And even then it's probably uninsurable which is considered a no-no where I live.
Their solutions need to comply to safety standards.
You've described the worst possible place to locate them.
"This is nonsense and dangerous"
"Wow look how thoughtful this design is, the cells are individually fused!"
The problem is that it doesn't scale; unless you have quality and reliability guarantees on the batteries, you won't be able to sell it in anything but unregulated markets, meaning that demand will always be low and investments in "smart AI robotics" will never earn themselves back.
