Nice!!! Love the testing. And what can kill these fet banks is transformer based battery chargers. Not sure if you saw me destroy the renogy 15s pack I had on my channel. Also there is litime batteries with fets rated to much higher voltages. Sok probably has the highest voltage igbt rn. You should test the $330 litimes, they are way better. A puncture test? I thought you were going to over charge it? Wasnt that the point of destroying the fets? What a bummer, I was hoping we would see them destroyed that way lol the beginning of the video got me excited for that. That gas is really nasty. When exposed to moisture in the atmosphere, there can be hydrogen flouride creation if i remeber correctly. Really want to leave them for a few hours before walking up to them. Lifepo4 isnt much of a fire risk but the gasses released are no joke to your health. Update: you're mentioning it! Thank goodness. So dangerous Wish you compared nmc or lipoly cells 🤣 those are the worse! The temps created are out of this world.
If you overcharge them, you'll get more cells to vent. Instead of a single tiny cylindrical cell, all of them will gas. Hard to compare the gas of one tiny cell versus a 100Ah prismatic.
As another experiment, you could take a lead acid battery, and torture it as well. Overcharge one in a confined space near an ignition source. Short one. Puncture one with something conductive. LiFePO4 batteries are far safer than other lithium batteries, and many people have no idea how dangerous a lead acid battery can be.
You are absolutely wrong when you say far safer. In fact there is a new article out showing that lithium iron phosphate batteries can still do a thermal runaway like other technologies and they produce gases that are vastly more toxic than other varieties. You are going off of what you "heard of" not what you know.
@@boblatkey7160 I’m actually basing it on the many tests I’ve seen. I’ve also experienced a lithium battery fire first hand. I also understand the chemical difference between the lithium battery types, and why LiFePO4 batteries are less prone to thermal runaway. Not so much what I heard as what I’ve read. But you’re entitled to your opinion…
Good call! I had a lead-acid blow up in my car once; the voltage regulator failed and the alternator overcharged it until it ruptured. There was quite a bang from under the hood, I thought I'd run over something, but there hadn't been anything in the road, and suddenly there were droplets all over the windshield. I went to wipe them off and the wipers started melting, and I started to piece together what must've happened. Also the wipers ran really fast for some reason... Luckily I was just a few blocks from home, so with the headlights burning double-bright and the whole rest of the electrics acting weird because of the high voltage, I made it to the driveway, grabbed the garden hose, and just started flooding the whole front end. Got the hood open and spent a few minutes rinsing everything before I removed the battery. The side of the case was split right open halfway down the side, and the electrolyte had drained out of 2 or 3 cells. Another hour with the hose and half a box of baking soda later, I had neutralized what remained of the acid, and left it to sit while I went and bought a new alternator and regulator. Except for some acid-eaten spots in the clearcoat, and new wipers and some lightbulbs that had burned out, the whole rest of the car survived none the worse for wear! I'm super lucky there wasn't an ignition source, as the hydrogen released during the rupture would've made quite the show and I'm not sure what would've happened after that.
It makes sense that the cylindrical cell based batteries would have less energetic and less catastrophic failure modes in the event of single-cell punctures - the individual cell failures involve lower total mass of battery chemistry and lower total watt-hours of sudden energy discharge. While other cell configurations (pouch & prismatic) allow more efficient volume engineering - literally a larger percentage of volume utilized for your battery chemistry - they also inherently mean individual cells have more battery chemistry mass and total stored energy allowing for more catastrophic failure modes as you have demonstrated. I will note that this is not exactly a function of cell type so much as a function of individual cell mass and/or volume, and in this test we simply have correlation between cylindrical cells and lower mass of battery chemicals per cell. There are large cylindrical cells out there. While I'm not going to make the outright value judgement and say this makes pouch/prismatic geometries inferior or should not be used, I feel it does mean they have the need to consider greater risk mitigation efforts with their use.
I was about to say the same. The amount of gassing is all about the total Ah of the shorted cell. While that said this is also a function of state of charge. If cell is empty the shorting does nothing. But in the same way if the larger prismatic cell has been designed with restrictive current colletors the shorting power will be reduced and the peak temperature limited. Internal shorts can be measured electronically by the BMS which again allow to mitigate failures. For example the bad cell can be discharged to zero before the shorting event can occur.
Yes, To be a fair reaction test I think you would have to puncture at least ten or twelve of the small cylindrical cells at once, but if it was a real world case of one screw puncturing then the reaction would be less.
Another thing that can kill the BMS is jump starting a vehicle, which I discovered by mistake. My brother has a dumper which wouldn't start one day outside our house. As I have a small 8Ah jump start pack that can start a car, I thought maybe the 30Ah Eco Worthy battery I have could jump start the dumper. Nope, The dumper still cranked weakly from its failing 12v 110Ah lead acid starter battery and a small puff of smoke emitted around the seams of the Eco Worthy battery. I left the battery for a while to be on the safe side and removed the cover, secured by 4 screws. I removed the BMS and under its heatsink was a row of charred MOSFETs, which I presume was caused by an inductive spike from either the starter motor or its contactor in the dumper.
I killed a 100a BMS doing that with my diesel tractor; it cranked a few times until it just... didn't anymore. BMS died. The cells were fine, though. You can find BMS's rated for starting, though - DALY has some rated for 150a cont, 2000a surge, and I've put 750A for 30s through them no issues, cranking a dozer
People vastly underestimate how many amps even a "dead" lead acid battery can put out. They're not actually dead when you go to start your car and it doesn't, it's just that cranking an engine takes a ridiculous amount of power. Think of when you push start a car - you have the car going at 15-20km/h and dump the clutch, and the engine nearly instantly stops it dead in its tracks. All that kinetic energy only gets you like a quarter of a second of "cranking". It's not exactly the same because when you push start you're spinning the engine much faster than the starter motor, but still.
Thanks for testing! This was very cool. That is the benefit of cylindrical cells, it's almost a self-safety feature since once bad cell contains so much less energy as a big pouch or prismatic. I have a bunch of prismatics in my basement for solar/backup storage. Even after this I feel it's fine. If they were NMC cells, that would be a huge fire and explosion hazard. It's why I prefer Tesla packs over other EVs, using metal cylindrical cells is just going to be inherently safer than a bunch of plastic pouches stacked together. Of course a lot of damage to the pack in an accident or something could cause major runaway too.
It's why I don't like creating a 48V battery with 4 x 12V BMS in series. You're much better off with a dedicated 16S BMS as in a server rack battery. Great test though - pretty predictable. The smaller cells just don't have as much energy to disperse. The pouch cells have the least mechanical protection and a lot pf energy so the heat is most likely to propogate to other cells. The aluminium case cells all held up well and did what they were supposed to do. The vent blew saving an actual explosion and the heat never reached the actual ignition point of the electrolyte. As far as the BMS failing I would much prefer it if they failed open to closed. They all should have some kind of voltage sensitive switch which just shuts the battery down when too much voltage is applied. That didn't happen with any of them. Some kind of heat sensitive sensor would seem wise in your battery compartment.
Jeez, why the hell are we even using lithium batteries??! Thanks for doing this. I have seen another video where someone put a part of a lithium battery in water and there was a fire and explosion. So be careful with water!
A great battery but price is astounding relative to kwh. I use a battle born and a battery i built. Understanding the chemistry, I will only consider lip04 due to the volatile nature of lithium ion.
This is super encouraging. I have seen so many lipo flamethrower videos I wasn't sure exactly what I was planning to put in my rv lol. Obviously not ideal to have a battery go up and they still need to be respected but it feels less like an incendiary grenade than what I was thinking.
LiPo and LiFePo are two wildly different things. LiFePo is what you see in this video. If you're really concerned about it, get one of the versions like the battleborn or dakota that use the smaller cells. The bigger the cell the more violent the failure.
1. Good to see John & Peter are bring productive as they break in their new RV. 2. Even better to see everyone move back when the testing started. 3. You dumped water on a chemical fire. Seriously? That is good to try to cool it off the exploding bits so they don't burn you as they puncture your skin. 4. You did not mention what Type of fire extinguishers you had on standby but I hope they were Dry Chemical (ABC, BC and DC) Extinguishers (More info: You may see them labeled: "DC" short for "dry chem" "ABC" indicating that they are designed to extinguish class A, B, and C fires. "BC" indicating that they are designed to extinguish class B and C fires.) Fun to watch. But a bit scary too.
It would be interesting to see how they behave if they vented in their plastic enclosure. If the heat didn't melt the plastic fast enough that would create a pressure vessel and likely result in an energetic event.
Do note that if you open up the bms you ll have different type of fets. They all have a max voltage. Mainly 60v some use higher break down voltages. Thirst thing to do try a short circuit high voltage fet on budget batteries tend to have a lower cascade failure.
Really useful and a bit reassuring the way you test. So we see that cylindrical vs prismatic and so on. Are this 12V? I use cylindrical in a boat, but I guess we should not even think about trying to extinguish even these! Be ready to abandon ship instead. I have 7 smoke detectors already, one close to the batteries and the chargers. After this I will definitely consider installing more really close to each power unit. Thanks!!! But I would like to see torture on lead acids as well ❤
All 12V, yes. Hoperfully they just offgas and dont catch fire.Fires are rare with these if they are used properly and not damaged. I dont mess with lead acids anymore, had some explode much more violently than this. Just not worth it for energy storage anyway.
This was quite confusing for me. I came here hoping to find that Lithium Iron Phosphate is safer than Lithium Ion. Is that what these tests showed . If not what did these tests show.
Edit: safety, lithium, chemistry, does not mix with water, it will create a bigger, fire, and/or explosion!!! Edit2: the battery that sort of exploded and had fire in the beginning, was probably a lithium ion instead of lithium iron phosphate. Lithium iron phosphate is much much safer. The safest chemistry of all is lithium titanate, but it’s a bit more expensive than lithium iron phosphate right now. Pouch cells are typically and lithium polymer, and are the most energetic. When they let loose, they will burn a fucking house down. But not all power cells are made from the lithium polymer. Can you please, moving forward, do your temperature measurements in Celsius? Every solid-state component does the temperatures in Celsius. From processors to BMSs, to actual batteries. That is the industry standard. And it’s a lot easier to gauge if the temperature is *actually* getting too hot or not.
Lithium ion batteries will have some quantity of zero valent Lithium on cathode which upon exposure to air and moisture catches fire and that fire ignites other organic compounds used in the battery such as oxidizers, electrolytes etc. And this will happen in Any Lithium battery as all of them will have possibility of metallic Lithium (all Lithium inside the battery will not be in ionic form). This trait will be obseved in Sodium ion batteries too.
I mounted my (4) LiTime 100Ah LiFePO4 Mini (pouch cell) batteries on a tray underneath my van. It was mostly to save space, but I was also concerned with fire. Kind of a two-edged sword-they are less protected underneath, but if something does go wrong, especially while we are sleeping, the extra effort and expense to mount the batteries externally should be worth it. The only thing that would make it better is a quick release system to immediately disenfranchise the whole battery package from the vehicle to save it from the ensuing fire. Of course, thieves would love that. Addendum: It was a bit disconcerting to see the more involved cascading reaction of the pouch cell battery. Does not make me feel good about my LiTime Minnies.
Cait, just a question, is Tom's life insurance paid up? Just wondering. Interesting video, I think I'm glad that my basement compartments are made of steel. Keep the good, if somewhat scary, stuff coming guys.
I read a posting by the manufacturer of my RV. They claim they tested many lithium batteries before deciding on the Lithionics cells. Have you any information on this brand and are they better as the manufacturer claims?
I think they make a pretty good product that they do get listed (watch my previous video about that) but I dont think their cells are anything special, I believe they use prismatic EVE like the Lion (not 100% on that)
Very interesting experiment but I’m concerned that you unnecessarily exposed yourself to very hazardous gasses emitted from the failed cell/s. Please take care as this is a genuine health hazard.
Yea, I was holding my breath if I wasent wearing my respirator, it is rated for organic acids I was expecting. I was going to do more testing, but decided it was not worth it. Yuck!
Ok so how do we know what battery has what? I have two 100ah EcoWorthy lithium batteries and have them outside on the tongue. They have been working well but I only have 300w of solar panels
How come you did a screw in the upper right cell of battleborn battery. All the others, you had screw in center mass. You will have to retest the battleborn battery!
I have Renogy batteries, six 100ah. Each three into a switch. One, two, or both. You can then shut off either bank, if you have a problem. Why are some batteries say 2000 recharges, others say 4000 recharges?
It wouldn't have made much of a difference. The volumetric capacity of a container scales in a non-linear way so you get a disproportionately more violent event with larger cells.
Why does no one ever include Victron Smart lithium battery’s in their battery evaluations when everyone seems to accept the solar controllers and inverter charges as being the bench mark?
Cylinder cell is very small in capacity, you need to penetrate the same amount of capacity compared to to a bigger cell to be fair with the smoke it produce 😅 this is quite basic
just thinking out loud Tom..,,,wonder when the biden/harris folks gonna show up for soil remediation/disposal fees ?? Good video i was thinking bout this yesterday as i was charging one/LI in the house doing some testing myself.
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
Nice!!! Love the testing. And what can kill these fet banks is transformer based battery chargers. Not sure if you saw me destroy the renogy 15s pack I had on my channel.
Also there is litime batteries with fets rated to much higher voltages. Sok probably has the highest voltage igbt rn. You should test the $330 litimes, they are way better.
A puncture test? I thought you were going to over charge it? Wasnt that the point of destroying the fets? What a bummer, I was hoping we would see them destroyed that way lol the beginning of the video got me excited for that.
That gas is really nasty. When exposed to moisture in the atmosphere, there can be hydrogen flouride creation if i remeber correctly. Really want to leave them for a few hours before walking up to them. Lifepo4 isnt much of a fire risk but the gasses released are no joke to your health. Update: you're mentioning it! Thank goodness. So dangerous
Wish you compared nmc or lipoly cells 🤣 those are the worse! The temps created are out of this world.
What was the SOC of these batteries when you punctured them?
You should do overcharge test to see how much gas is released in the cases. That's what people would actually experience.
Man you really really need to get your hands on a roypow or epoch haha it's so good. Would love to see you try to break one
If you overcharge them, you'll get more cells to vent. Instead of a single tiny cylindrical cell, all of them will gas. Hard to compare the gas of one tiny cell versus a 100Ah prismatic.
Good Point should have mentioned that, close to 100
As another experiment, you could take a lead acid battery, and torture it as well. Overcharge one in a confined space near an ignition source. Short one. Puncture one with something conductive. LiFePO4 batteries are far safer than other lithium batteries, and many people have no idea how dangerous a lead acid battery can be.
This is true! I have had lead acid offgas in our RV and seen them explode twice!! Once in a golf cart and once in a bulldozer. Very Scary stuff!
Maybe you should watch this. LFP produce more H2 than NMC or NCA. ua-cam.com/video/MLt0-tCpc8Q/v-deo.html
You are absolutely wrong when you say far safer. In fact there is a new article out showing that lithium iron phosphate batteries can still do a thermal runaway like other technologies and they produce gases that are vastly more toxic than other varieties. You are going off of what you "heard of" not what you know.
@@boblatkey7160 I’m actually basing it on the many tests I’ve seen. I’ve also experienced a lithium battery fire first hand. I also understand the chemical difference between the lithium battery types, and why LiFePO4 batteries are less prone to thermal runaway. Not so much what I heard as what I’ve read. But you’re entitled to your opinion…
Good call! I had a lead-acid blow up in my car once; the voltage regulator failed and the alternator overcharged it until it ruptured. There was quite a bang from under the hood, I thought I'd run over something, but there hadn't been anything in the road, and suddenly there were droplets all over the windshield. I went to wipe them off and the wipers started melting, and I started to piece together what must've happened. Also the wipers ran really fast for some reason...
Luckily I was just a few blocks from home, so with the headlights burning double-bright and the whole rest of the electrics acting weird because of the high voltage, I made it to the driveway, grabbed the garden hose, and just started flooding the whole front end. Got the hood open and spent a few minutes rinsing everything before I removed the battery. The side of the case was split right open halfway down the side, and the electrolyte had drained out of 2 or 3 cells. Another hour with the hose and half a box of baking soda later, I had neutralized what remained of the acid, and left it to sit while I went and bought a new alternator and regulator.
Except for some acid-eaten spots in the clearcoat, and new wipers and some lightbulbs that had burned out, the whole rest of the car survived none the worse for wear! I'm super lucky there wasn't an ignition source, as the hydrogen released during the rupture would've made quite the show and I'm not sure what would've happened after that.
It makes sense that the cylindrical cell based batteries would have less energetic and less catastrophic failure modes in the event of single-cell punctures - the individual cell failures involve lower total mass of battery chemistry and lower total watt-hours of sudden energy discharge. While other cell configurations (pouch & prismatic) allow more efficient volume engineering - literally a larger percentage of volume utilized for your battery chemistry - they also inherently mean individual cells have more battery chemistry mass and total stored energy allowing for more catastrophic failure modes as you have demonstrated. I will note that this is not exactly a function of cell type so much as a function of individual cell mass and/or volume, and in this test we simply have correlation between cylindrical cells and lower mass of battery chemicals per cell. There are large cylindrical cells out there.
While I'm not going to make the outright value judgement and say this makes pouch/prismatic geometries inferior or should not be used, I feel it does mean they have the need to consider greater risk mitigation efforts with their use.
I was about to say the same. The amount of gassing is all about the total Ah of the shorted cell. While that said this is also a function of state of charge. If cell is empty the shorting does nothing. But in the same way if the larger prismatic cell has been designed with restrictive current colletors the shorting power will be reduced and the peak temperature limited.
Internal shorts can be measured electronically by the BMS which again allow to mitigate failures. For example the bad cell can be discharged to zero before the shorting event can occur.
Yes, To be a fair reaction test I think you would have to puncture at least ten or twelve of the small cylindrical cells at once, but if it was a real world case of one screw puncturing then the reaction would be less.
I’ve been wanting to see a video like this for so long. Thanks.
Another thing that can kill the BMS is jump starting a vehicle, which I discovered by mistake. My brother has a dumper which wouldn't start one day outside our house. As I have a small 8Ah jump start pack that can start a car, I thought maybe the 30Ah Eco Worthy battery I have could jump start the dumper. Nope, The dumper still cranked weakly from its failing 12v 110Ah lead acid starter battery and a small puff of smoke emitted around the seams of the Eco Worthy battery.
I left the battery for a while to be on the safe side and removed the cover, secured by 4 screws. I removed the BMS and under its heatsink was a row of charred MOSFETs, which I presume was caused by an inductive spike from either the starter motor or its contactor in the dumper.
I killed a 100a BMS doing that with my diesel tractor; it cranked a few times until it just... didn't anymore. BMS died. The cells were fine, though.
You can find BMS's rated for starting, though - DALY has some rated for 150a cont, 2000a surge, and I've put 750A for 30s through them no issues, cranking a dozer
People vastly underestimate how many amps even a "dead" lead acid battery can put out. They're not actually dead when you go to start your car and it doesn't, it's just that cranking an engine takes a ridiculous amount of power.
Think of when you push start a car - you have the car going at 15-20km/h and dump the clutch, and the engine nearly instantly stops it dead in its tracks. All that kinetic energy only gets you like a quarter of a second of "cranking".
It's not exactly the same because when you push start you're spinning the engine much faster than the starter motor, but still.
This is a good reason I like the SOK battery, the battery is in a metal case. It would be hard to put a screw thru it.
Battery in metal case can accumulate H2. ua-cam.com/video/MLt0-tCpc8Q/v-deo.html
Thanks for testing! This was very cool. That is the benefit of cylindrical cells, it's almost a self-safety feature since once bad cell contains so much less energy as a big pouch or prismatic.
I have a bunch of prismatics in my basement for solar/backup storage. Even after this I feel it's fine. If they were NMC cells, that would be a huge fire and explosion hazard.
It's why I prefer Tesla packs over other EVs, using metal cylindrical cells is just going to be inherently safer than a bunch of plastic pouches stacked together. Of course a lot of damage to the pack in an accident or something could cause major runaway too.
Btw good testing, thanks for sharing!
It's why I don't like creating a 48V battery with 4 x 12V BMS in series. You're much better off with a dedicated 16S BMS as in a server rack battery. Great test though - pretty predictable. The smaller cells just don't have as much energy to disperse. The pouch cells have the least mechanical protection and a lot pf energy so the heat is most likely to propogate to other cells. The aluminium case cells all held up well and did what they were supposed to do. The vent blew saving an actual explosion and the heat never reached the actual ignition point of the electrolyte. As far as the BMS failing I would much prefer it if they failed open to closed. They all should have some kind of voltage sensitive switch which just shuts the battery down when too much voltage is applied. That didn't happen with any of them. Some kind of heat sensitive sensor would seem wise in your battery compartment.
I have no clue how i eneded up here but i learned a lot about batteries, thank you.
Jeez, why the hell are we even using lithium batteries??! Thanks for doing this.
I have seen another video where someone put a part of a lithium battery in water and there was a fire and explosion. So be careful with water!
"What did we learn from this?". It's probably not a good idea to run a screw into them.
A great battery but price is astounding relative to kwh. I use a battle born and a battery i built. Understanding the chemistry, I will only consider lip04 due to the volatile nature of lithium ion.
This is super encouraging. I have seen so many lipo flamethrower videos I wasn't sure exactly what I was planning to put in my rv lol. Obviously not ideal to have a battery go up and they still need to be respected but it feels less like an incendiary grenade than what I was thinking.
LiPo and LiFePo are two wildly different things. LiFePo is what you see in this video. If you're really concerned about it, get one of the versions like the battleborn or dakota that use the smaller cells. The bigger the cell the more violent the failure.
GOOD JOB, pretty sure you thinned out our ozone layer just a bit more, maybe pierced a hole right through it!🌦🌞
1. Good to see John & Peter are bring productive as they break in their new RV.
2. Even better to see everyone move back when the testing started.
3. You dumped water on a chemical fire. Seriously? That is good to try to cool it off the exploding bits so they don't burn you as they puncture your skin.
4. You did not mention what Type of fire extinguishers you had on standby but I hope they were Dry Chemical (ABC, BC and DC) Extinguishers
(More info: You may see them labeled: "DC" short for "dry chem" "ABC" indicating that they are designed to extinguish class A, B, and C fires. "BC" indicating that they are designed to extinguish class B and C fires.)
Fun to watch. But a bit scary too.
would like to see a safety test on Redodo. We know someone who just lost their rv, truck and home to LiTime battery failure during charging. So sad.
Hi Tom
Could you do a comparison between the 270 Battle Born & 460 Epoch including price Ah/lb
Thank you in advance!
It would be interesting to see how they behave if they vented in their plastic enclosure. If the heat didn't melt the plastic fast enough that would create a pressure vessel and likely result in an energetic event.
Wow. Amazing.
Do note that if you open up the bms you ll have different type of fets. They all have a max voltage. Mainly 60v some use higher break down voltages. Thirst thing to do try a short circuit high voltage fet on budget batteries tend to have a lower cascade failure.
What are your thoughts on Graphene Aluminum batteries?
Have you got tests of a Lithium ion battery being punctured.
Really useful and a bit reassuring the way you test. So we see that cylindrical vs prismatic and so on. Are this 12V? I use cylindrical in a boat, but I guess we should not even think about trying to extinguish even these! Be ready to abandon ship instead. I have 7 smoke detectors already, one close to the batteries and the chargers. After this I will definitely consider installing more really close to each power unit. Thanks!!!
But I would like to see torture on lead acids as well ❤
All 12V, yes. Hoperfully they just offgas and dont catch fire.Fires are rare with these if they are used properly and not damaged. I dont mess with lead acids anymore, had some explode much more violently than this. Just not worth it for energy storage anyway.
This was quite confusing for me. I came here hoping to find that Lithium Iron Phosphate is safer than Lithium Ion. Is that what these tests showed . If not what did these tests show.
Edit: safety, lithium, chemistry, does not mix with water, it will create a bigger, fire, and/or explosion!!!
Edit2: the battery that sort of exploded and had fire in the beginning, was probably a lithium ion instead of lithium iron phosphate. Lithium iron phosphate is much much safer. The safest chemistry of all is lithium titanate, but it’s a bit more expensive than lithium iron phosphate right now.
Pouch cells are typically and lithium polymer, and are the most energetic. When they let loose, they will burn a fucking house down. But not all power cells are made from the lithium polymer.
Can you please, moving forward, do your temperature measurements in Celsius? Every solid-state component does the temperatures in Celsius. From processors to BMSs, to actual batteries. That is the industry standard. And it’s a lot easier to gauge if the temperature is *actually* getting too hot or not.
My take away from this - Cylindrical cells are inherently safer than prismatic cells or pouch cells
Lithium ion batteries will have some quantity of zero valent Lithium on cathode which upon exposure to air and moisture catches fire and that fire ignites other organic compounds used in the battery such as oxidizers, electrolytes etc. And this will happen in Any Lithium battery as all of them will have possibility of metallic Lithium (all Lithium inside the battery will not be in ionic form). This trait will be obseved in Sodium ion batteries too.
I just bought a bluetti AC180 portable power station.What are your thoughts about leaving it in a rv with outside temperatures reaching 108F.
just crazy to even think on doing that....
Come on, do the overcharge test! You can do this much more safely than the puncture test, as you can be far away from the battery.
I mounted my (4) LiTime 100Ah LiFePO4 Mini (pouch cell) batteries on a tray underneath my van. It was mostly to save space, but I was also concerned with fire. Kind of a two-edged sword-they are less protected underneath, but if something does go wrong, especially while we are sleeping, the extra effort and expense to mount the batteries externally should be worth it. The only thing that would make it better is a quick release system to immediately disenfranchise the whole battery package from the vehicle to save it from the ensuing fire. Of course, thieves would love that. Addendum: It was a bit disconcerting to see the more involved cascading reaction of the pouch cell battery. Does not make me feel good about my LiTime Minnies.
u crazy what if it blows up, thanks for the awesome video tho.
Cait, just a question, is Tom's life insurance paid up? Just wondering. Interesting video, I think I'm glad that my basement compartments are made of steel. Keep the good, if somewhat scary, stuff coming guys.
So glad I have BBs ! Best investment.
Confused you said they are all lithium Ion????
I read a posting by the manufacturer of my RV. They claim they tested many lithium batteries before deciding on the Lithionics cells. Have you any information on
this brand and are they better as the manufacturer claims?
I think they make a pretty good product that they do get listed (watch my previous video about that) but I dont think their cells are anything special, I believe they use prismatic EVE like the Lion (not 100% on that)
Very interesting experiment but I’m concerned that you unnecessarily exposed yourself to very hazardous gasses emitted from the failed cell/s. Please take care as this is a genuine health hazard.
Yea, I was holding my breath if I wasent wearing my respirator, it is rated for organic acids I was expecting. I was going to do more testing, but decided it was not worth it. Yuck!
Could you please test maximum temperature that the battery can withstand
Check the last video for my testing on the cell temp sensors.
Aren’t you going to do travel videos any more ?
Back to it next!
Trow that big Stones over BB batt. 😊😊 Saludos.
Hey what is this, myth busters 2.0 🤣😂🤔
You're nuts . But it was fun
Ok so how do we know what battery has what? I have two 100ah EcoWorthy lithium batteries and have them outside on the tongue. They have been working well but I only have 300w of solar panels
Good question, but the manufacturer should let you know.
How come you did a screw in the upper right cell of battleborn battery.
All the others, you had screw in center mass.
You will have to retest the battleborn battery!
Thats a good point, didnt really think that through on the cylindricals
I have Renogy batteries, six 100ah.
Each three into a switch. One, two, or both. You can then shut off either bank, if you have a problem.
Why are some batteries say 2000 recharges, others say 4000 recharges?
It wouldn't have made much of a difference. The volumetric capacity of a container scales in a non-linear way so you get a disproportionately more violent event with larger cells.
why do they advertise LiFeP04 as non flamable [solid] clearly its not the case
Why does no one ever include Victron Smart lithium battery’s in their battery evaluations when everyone seems to accept the solar controllers and inverter charges as being the bench mark?
Yes, I have been using victron products for years. Their batteries are not bad, but nothing special, I think winston or EVE cells.
I live in my van and could have used those batteries it's not right to waste money like that
Cylinder cell is very small in capacity, you need to penetrate the same amount of capacity compared to to a bigger cell to be fair with the smoke it produce 😅 this is quite basic
Which of these was LiFePo4
?????
Li ion is not equal to lifepo4
The first one
I would check not only the short-circuit test, but if there is a fire next to the battery, then what?
So I guess alot of rich people don't care about us homeless
I really need help to afford gas and diesel and meals
Chinese Lifepo4 batts are garbage!
just thinking out loud Tom..,,,wonder when the biden/harris folks gonna show up for soil remediation/disposal fees ?? Good video i was thinking bout this yesterday as i was charging one/LI in the house doing some testing myself.
Not very eco, all that contaminated water going in to the ground, you need to stop that buddy