Reading glasses were the worst. You have them on and off all day. It gets better when your eyes get worse and you can get progressive lenses. They stay on all day and you can see everything. All part of getting old.
Disposing of puffy lithium batteries, place into a bucket containing a few inches of sand, take outside, short it out through a 100w light bulb. Or for for funz, bang a nail through it!
That configuration is known as “3S1P” -> three cells in series and effectively one parallel. Hence the four wires; but you know that by now. ✌️ Also, @backofficeshow .. no link to that awesome looking, sooooper fancy bit set??
I also had a Dell laptop battery go puffy this year. I had been using the laptop continuously since 2017 and I noticed that my trackpad was being elevated (and slightly damaged---sigh) and upon close inspection the bottom cover of my laptop was being forced open and the laptop no longer sat flat. It took some wrangling to get the battery pack out of my laptop. I had a booster lithium pack go puffy as well a few years ago. Oddly, one cell was good and the other one went puffy.
It's a shame i disposed of these, I should have tried to let the gas out and see how they perform, though let's be fair, would you trust a puffy pack back in your laptop?
The cells would likely still work fine if you used two steel plates and put the battery into a vise. Better have a fireproof storage/disposal area if you do that though.
@@backofficeshow The battery performs poorly because gasses are physically separating electrodes. Compression to keep electrodes together is actually recommended by battery manufacturers for some of their pouch and prismatic cells. Many EVs using prismatic cells have threaded rods to clamp cells between compression plates to mitigate this failure mode. Can't puff up as much thickness-wise when there is 100-400 kPa / 15-60 psi pushing back.
@@backofficeshow Depends on what the gasses are. In many rechargeable battery chemistries, there are catalysts to help re-combine gasses from electrolyte electrolysis back into electrolyte and that reaction will have an equilibrium pressure. In that case, confining "puffing up" to the perimeter by using compression allows cells to reach equilibrium pressure without electrode separation. The downside being that if the battery has an internal short, the failure could be more spectacular since the compressed layers will be dumping full short-circuit current into the fault. Without compression, out-gassing should separate layers and cause short-circuit current to drop drastically.
I'm guessing this is why the fancy BMSes in cars tend to really pay attention to the temperature of the cells and cool/heat them as required during use to help against some of these effects. The more cells I pull apart, the fewer I see any sort of temperature sensing. That used to be a lot more common place in consumer electronics. I guess they just cost engineered that out of the process, as they discovered that typically batteries puff up rather than explode 😂
They say once discharged drop them in saltwater to finally deplete the complete voltage If you want to do some proper jumpscare take outside somewhere safe While it's fully charged hammer a nail through it run an stand back an watch you will be amazed how dangerous these cells actually are
Jumpscare...💥
I forgot that happened!
Yes..... One did jump a little when sparky showed up😊. Great video ..thanks
You need a little sparkly to keep you on your toes 😂
Imagine working with radiation, You only get one spark
Reading glasses were the worst. You have them on and off all day. It gets better when your eyes get worse and you can get progressive lenses. They stay on all day and you can see everything. All part of getting old.
Looking forward to it!
Disposing of puffy lithium batteries, place into a bucket containing a few inches of sand, take outside, short it out through a 100w light bulb. Or for for funz, bang a nail through it!
I'm definitely going to be abusing future spicy pillows with puncturing!
That configuration is known as “3S1P” -> three cells in series and effectively one parallel. Hence the four wires; but you know that by now. ✌️
Also, @backofficeshow .. no link to that awesome looking, sooooper fancy bit set??
Apologies!
ruclips.net/video/JrnrpEEz9xA/видео.htmlsi=ceZxWenPdJlyP9bV
I also had a Dell laptop battery go puffy this year. I had been using the laptop continuously since 2017 and I noticed that my trackpad was being elevated (and slightly damaged---sigh) and upon close inspection the bottom cover of my laptop was being forced open and the laptop no longer sat flat. It took some wrangling to get the battery pack out of my laptop. I had a booster lithium pack go puffy as well a few years ago. Oddly, one cell was good and the other one went puffy.
It's a shame i disposed of these, I should have tried to let the gas out and see how they perform, though let's be fair, would you trust a puffy pack back in your laptop?
The cells would likely still work fine if you used two steel plates and put the battery into a vise. Better have a fireproof storage/disposal area if you do that though.
Squeeze out the badness
@@backofficeshow The battery performs poorly because gasses are physically separating electrodes. Compression to keep electrodes together is actually recommended by battery manufacturers for some of their pouch and prismatic cells. Many EVs using prismatic cells have threaded rods to clamp cells between compression plates to mitigate this failure mode. Can't puff up as much thickness-wise when there is 100-400 kPa / 15-60 psi pushing back.
@teardowndan5364 that's really interesting. I really ought to look into it one day. If they cannot puff up, does something else, worse, happen 🤔
@@backofficeshow Depends on what the gasses are. In many rechargeable battery chemistries, there are catalysts to help re-combine gasses from electrolyte electrolysis back into electrolyte and that reaction will have an equilibrium pressure. In that case, confining "puffing up" to the perimeter by using compression allows cells to reach equilibrium pressure without electrode separation.
The downside being that if the battery has an internal short, the failure could be more spectacular since the compressed layers will be dumping full short-circuit current into the fault. Without compression, out-gassing should separate layers and cause short-circuit current to drop drastically.
I'm guessing this is why the fancy BMSes in cars tend to really pay attention to the temperature of the cells and cool/heat them as required during use to help against some of these effects. The more cells I pull apart, the fewer I see any sort of temperature sensing. That used to be a lot more common place in consumer electronics. I guess they just cost engineered that out of the process, as they discovered that typically batteries puff up rather than explode 😂
They say once discharged drop them in saltwater to finally deplete the complete voltage
If you want to do some proper jumpscare take outside somewhere safe
While it's fully charged hammer a nail through it run an stand back an watch you will be amazed how dangerous these cells actually are
Throw it in the ocean, got it 👍😄
@@backofficeshow 🤦♂️ a bucket of salt water not an ocean of it hahaaaa
BackOfficeBOOM
I can live without the boom these days