thanks for rcvr team for running this experiment, one which a good number of people have yet to have an experience with a lipo reaction and probably have no idea what a reaction looks like
I like to charge my lipo battery on top of my clothes in a laundry basket, and when theyre 100% charged, i put them under my pillow when i sleep because i love them so much.
The problem with lipo fires is the reaction supplies it's own oxygen. That's why you can't just smoother it. Like they said in the video, you need something to break the reaction..
I'm late to the party. But I wanted to show my daughter the seriousness behind lipo batteries. She just started flying heli's (high spirited 18 yr old😊). And she has learned ALOT...from this video. I read in the comments someone mentioned everyone needs to watch this video in the RC hobby. And he's 100% correct and I hope it shows upon search. Best video I've found and appreciate the time you guys have taken to educate us. You're making a difference, thank you!
Thank you. I, like many others have that smaller Lipo pouch bag. Good to see it tested. This gave me some Ideas based on what I saw here: 1) Keep a smoke alarm IN the bag, you'd hear it if your in another room...which let's face it us what most people do. 2) Store less batteries per Lipo bag, have multiple bags with only 1 or 2 batteries in there. 3) Make note of total cell in your bag. If you know there is a 6s and a 3s in there. Count the pops off ass the burn up. If you haven't counted to 9, wait. 4) Would a sacrificial non-pressurised container of non-flamable expanding foam in the bag help. Idea: it breaks out of it's container from the heat of a broken cells, then quickly fills the bag volume with foam, thus reducing oxygen volume in the bag = more time to act and get that bag outside away from valuables.
Just purchased one of these bags on Amazon and was wondering the same thing…do these bags perform as promised? Thank you so much for this important “community service experiment!” I feel much better about my purchase now👍🏼
I would love to see these on top of something flammable like carpet or wood to understand if these would be hot enough to burn material through the bag
@@GlobalSourcing I don't know if it's like that, but I imagine that there is some kind of buffer to the ground so it won't get hot to burn the ground where it's standing. But I don't know.
I've just watched a video of a Lipo fire in an ammo case, you should probably get a Lipo bag unless you want your ammo tin spitting flames 2 foot in the air like a flame thrower
Thank you for making this. What I have done is put each battery in it's own single fireproof bag and then put those into a bigger zip bag like you have. I wonder how they would do. Also interested in what a charge fire (while it is over charging) looks like. But this is super helpful!
Great demonstration. Very important information. I have three of the box style lipo bag. I always store my lipos at storage voltage in those bags. And I don't charge unattended. 🤓
Thanks for the video, I put mine in individual pouches inside the bigger bag to avoid a chain reaction. Your experiment reassured me that it should be relatively safe.
I ran a similar experiment with similar results. While not perfect, the lipo bags are a worthy investment that buy you time. Also thought of something else. How many of use bring a fire extinguisher when we fly? Another worthy investment. Shitty to lose a battery or plane but worse to light the surrounding area on fire.
Double bagged and in 50cal ammo cans, that is how i roll for my FPV Batteries. Although i have never seen or heard of one blowing just sitting in storage. Awesome test. 👍👍🇺🇸
I have been playing airsoft for a while. I mostly use NIMH batteries but just purchased my first LIPO batter recently. I knew of thier potential to catch fire so I purchased a LIPO bag with it.
great video guys, I am getting back into RC after 40 years away. I've bought all the bits for my boat. I haven't purchased any batteries or charger yet. I am all spooked out now. I have purchase lips bags and will now buy a metal container to put lipo bags in. I am reading all the do and don'ts with lipo usage and safety. The lipo bag did burn as you said because you introduced oxygen. When its was still zipped up it did its job and gave you enough time to make the next safety move.
Don't be spooked. 4.2 max charge (4.15 for longevity) 3.8 storage (don't ignore this) 1-1.5c charge rate only (5c is abusive) 3.6v/c - stop flying 3.3v/c - stop flying right this instant
Another useful test world have been to surround the bag with something flammable, e.g. straw. After all, the objective of these bags is to prevent the fire spreading.
Thank you so much for taking the risks for our education. I only charge outside, apart from the little 1S for indoor whoop flying which are charged in my office in a tin.
I'm looking for heat/fire and water protection for batteries, from in and out, that will be partially outside, thank you for making this video, very helpful!
Those batteries did cost $$, but we burned batteries that had been taken out of flight service due to age/puffiness etc... You're welcome for the video...
Good demonstration, I use these bags but also store them inside vented steel containers. I think il get more smaller bags to separate lipos a bit more.
That was a great video, I always wondered how those bags would react. I also keep my batteries in a ammo box, curious how that would react in this scenario. Thanks again for the video.
@@Joneszee1969There is probably a gasket in the lid you can remove. It's to waterproof them for ammo, but will leave an air gap if you pull it. I'm using about 4 of these to store batteries, but fortunately have never had them tested. I'd like to see the results, too!
I Did learn something today. (Oh, wait... that's a different channel. 😁) I too expected a quicker chain reaction. Seeing an unburned pack right next to a burned one was a surprise.
Thank you for your demonstration. If you must put out or contain a lipo fire whether as a result of puncturing or overcharging, what is the best way (personal experience or published results) to do so? Pouring sand over? Submerging in water? Covering it with a bucket? Other?
If it happens, it will burn too hot to really put out, but it will only react for a short time. You mentioned covering with a bucket, yes, that will help protect items that are close and help smother remaining flames after the reaction. (metal bucket, not plastic). Basically, protect whatever you can, but when they go, you can't stop them. Keep the batteries and charge areas isolated as much as possible. Create a mental plan, know how to react, and don't panic. I keep a cheap mini BBQ grill with lid right where it needs to be. A cheap little grill is the best money you'll ever spend, if it is needed!
It's seems that that Bag Actually did it's Job....Thanks for making this Video....I use these Same Exact Bags and always Wondered if they Actually Work....
It's all about what chemistry Lithium cells you have. LiPo those bags will work fine for but if you have NMC, Li-NMC, LNMC, or NCM those are very violent that bag would not of contained the fire and the runaway is just as fast. I would recommend shielding if you want to pop one of those.
Excellent video. I have a 10.4Ah lithium ion battery for a wheelchair which I'll be taking on an aeroplane and it was so good to see how well these bags help contain a damaged battery making it a bit of a no-brainer decision to get one. I appreciate it's a different tech but is it reasonable to assume that Lipo and Li-ion batteries behave similarly when damaged ie the bag will operate as effectively with a LI-ion battery? Perhaps airlines already use them but the effectiveness suggests that their use should be mandatory on flights.
The one thing I wanted to see ,was did the outside of the bag get hot enough to set fire to things on my desk? Paperwork , plastic items do the walls of the bag insulate as they are supposed to? Brilliant video thanks
I'm going to say the material that is around the zipper is what was on fire and on the first bag ignited when oxygen was introduced I think a lot of times when we get the fire right off the bat I think multiple cells erupt at once excellent video guys I shed a couple tears 🥲when I seen Good batteries being used but it was for the best👍🏻🤠
Great video for sure. Good to know that the bag is capable of containing the fire and perhaps even slowing it down or preventing one pack from igniting all the rest. I have a question though - when are LIPO's most likely to catch on fire? What conditions or situations? Is charging inherently more dangerous than storage? What about in actual use when the power is flowing out of the battery? And last but not least storage at home or where ever, where they are stored between uses. A lot of people use the metal ammo cans - I would love to see an apples to apples comparison of the same batteries exploding in a bag like the one in this video and an ammo can. It seemed like one thing that might be going on is that the bag is limiting the amount of oxygen from the environment and I think a metal ammo can is likely to have more air space inside than the bag you used. I don't have the dim's so i don't know if this is true. I know it is a year after you made this video but who knows, perhaps you will do a part 2 on this topic. Cheers
@@RCVideoReviews Cool! I'm new to the hobby and the channel and I like waht I see. Except the FAA which has no place here and these little IED's we use for batteries. I'd like to see something safer.
I keep my lipos in a steel ammo can from the military surplus store. They're dirt cheap, and if they keep ammo safe im sure they can contain a few lipos
Thank you for sacrificing batteries for our benefit! It looked like the larger bag’s zipper is what burned, not the bag. Is that what you saw? Thank you.
9:50 why .. at 3.8volt they won't burn? or hardly? 20:00 IF they would catch real fire, maybe they would burn all together quickly, but since it's only smoking?
Hello, how are you? They will burn at 3.8 V per cell. Just the fire will be smaller and shorter. Because there is less energy stored in the packs that it would be if they were fully charged at 4.2 volts per cell. No fire is a good fire, but definitely a smaller fire is better than a big one.😂 Plus good maintenance and handling of the batteries such as not overcharging ,over discharging, overtasking the batteries and maintain them at storage voltage and balance just makes for a healthier battery, not very likely to just burst in flames all by itself.
What i took from this is to keep your batteries in separate bags, that way they can't set off other batteries. Might seam over kill but its better than losing all your batteries or you home or car.
I like my old ammo cans to keep my lipos in. the "exploding" part, is 99% because the charger malfunctions, causing overcharge of the cells. When overcharged, they are explosive.
They are also explosive depending on who we’ll they are built. How tightly the pouch is sealed and how strong it is. I’ve seen tests where the cells to pop and make a bang. But most people who say “LiPo explosion” really are talking about round cells like are in e-bikes and computers. Those almost always make a loud pop. Just the nature of their design.
I use empty .50 cal. ammo-cans with installed overpressure release valves to store (and charge) my Li-Po packs. I either place these boxes on a concrete floor or on bricks, to prevent heat transfer to a combustible surface.
The way you’re igniting them is causing them not to be as fire. You should be igniting them using the nicad setting on a charger that will cause a battery to explode. I have videos that occurring in my house so I’m certain using a nail doesn’t create the same reaction
Batteries deflagrate, they don’t explode or detonate. However, in some cases from the viewpoint of the on-looker, it does appear to have been an explosion.
A conflagration from thermal runaway is one thing but fumes can be quite another. Is it just smoke? Keep down wind at all times and breathe away from the general direction of the fire.
Could have added a test putting a stack of newspaper on the bottom and let's see if the heat is also insulated or dampened enough that there is no secondary fires generated outside of the bag.
I have personal experience with this phenomenon with an E-Bike project I had some time back. One of the batteries got shorted to ground and exploded, but none of the other batteries, including the one DIRECTLY ON TOP, so much as flinched throughout the whole ordeal. Not at the time, nor in continued service 🤷
Interesting test, BUT, if that bag was set on top of carpeting, would the bag have gotten hot enough to melt and ignite the carpeting, thus burning down a house?
Since we didn't test it on carpet inside a house I have no way to answer that question based on observable fact. If had to guess, I'd say no. The bag wasn't hot enough to initiate a fire on nearby combustible sources.
I wanted to thank you for doing this test. I would say there are a lot of people charging lipos on pine or ply shelves, wood work benches, etc.. Do you think that these surfaces might ignite. I was thinking it was too bad you did not chuck a board under the bag at the same time. I use a shelf made of drywall to give some extra fire resistance. I wonder if I should switch to concrete backer board for even more fire resistance.
Just FYI, my first battery for the Phantom, was dropped and hit a rock. It most definitely did pop open like an explosion...not super loud but exploded open into one very big fire!
can a lipo at storage voltage still catch fire? Thanks for the test! Can we kill a very active fire from lipo using a fire extinguisher? What are your thoughts on ammo boxes? Are they overkill?
At storage voltage, they still have energy, so 100% they can still burn. As to whether you can put them "out" with an extinguisher, this is more nuanced than the comments in this video would leave you to believe. You could probably temporarily extinguish the flame--if flame exists--with water or CO2, but until the energy is consumed, you cannot stop the chemical reaction which means the reaction will continue until the fuel is exhausted. This does not mean there will be fire though. I've seen entire packs react without seeing flame. Personally, I think ammo boxes are overkill. I've been using these batteries for at least a decade now. I fly *a lot*. I've built 50v systems, long range systems, parallel systems, and have used every power level from 1s-12s in about every capacity from 300mah to 60,000mah and I've used batteries from many different labels. I have yet to set one on fire unless it was on purpose or in a crash. I believe if you use proper functioning and appropriate equipment, and the proper values for these batteries you don't have anything to worry about. I suspect most of the fires you see/hear about are due to misuse or faulty equipment. I've also handled thousands of questions on this YT channel and one of the single biggest issues in diagnosing/resolving issues is getting *all* and I mean *all* of the relevant information at the start of troubleshooting. IMHO the same applies to these fires you hear about: I believe we're not getting *all* of the information.
I've seen people recommend a metal ammo box. I'd like to see somebody test that with the lid open a crack, vs with holes drilled, vs unmodified and sealed shut except for minimal holes for charging wires.
I saw a "test" from some company trying to sell their safe box showing the ammo cans would just explode, but they intentionally didn't modify the cans. The trick to keeping them safe is apparently to remove the rubber gasket allowing pressure to vent but not much airflow. I'll dig around and see if I can find the videos again but I think they might have been removed by now.
@@raztaz826 I tried pasting a link but the spam filter must've blocked it, youtube is notoriously bad about letting you link to things in comments. The video title is "How to store LiPo battery safely - In depth LiPo fire tests" and includes an ammo box left open, closed with no seal, closed with seal, and with a bag of sand on top of an open can as an attempt to auto-smother the fire.
I'd like to see you do the same experiment but on a car back seat or somewhere else that could potentially catch fire, a realistic worst case place you might have these
A lot of newer batteries use a different chemical make up in lipos that produce more smoke than fire and I have noticed that fully charged or used around 3.6v a cell they still will burn almost the same if they go up but yes a fully charged batt is less stable sitting around.
Better a bit safer than sorry. Right before christmas a club member had a lipo fire in his house. Lipo fires don't happen often but they do happen 😢. Do the best you can to keep your loved ones safe.
Every single person in any part of the greater RC hobby needs to watch this video! Thanks for this video, guys! Well done!
I 100% agree. Thank you.
thanks for rcvr team for running this experiment, one which a good number of people have yet to have an experience with a lipo reaction and probably have no idea what a reaction looks like
I've seen a couple of lipo fires, but this taught me quite a bit.
I like to charge my lipo battery on top of my clothes in a laundry basket, and when theyre 100% charged, i put them under my pillow when i sleep because i love them so much.
Thanks boys. I treat them with respect. For sure! Thanks for the sacrifices!!
Im buying me a lipo bag for my filing cabinet.
The bags performed better than I thought. Fire only happens when Oxygen is introduced by opening the bag. Good job guys, I leaned a lot. Thanks
The problem with lipo fires is the reaction supplies it's own oxygen. That's why you can't just smoother it. Like they said in the video, you need something to break the reaction..
@@cflin4637 is it the same with lithium?
Even under water lipo batteries will burn.
Agree, but they are still oxygen limited. Proved by the experiment with the bags.
Fire is only introduced when providing oxygen? That's an effing joke! Batteries can burn just fine without any oxygen at all.
This gives me much more confidence in my lipo bags. Thanks guys 👌
Thanks for taking the time to show this guys!
I'm late to the party. But I wanted to show my daughter the seriousness behind lipo batteries. She just started flying heli's (high spirited 18 yr old😊). And she has learned ALOT...from this video. I read in the comments someone mentioned everyone needs to watch this video in the RC hobby. And he's 100% correct and I hope it shows upon search. Best video I've found and appreciate the time you guys have taken to educate us. You're making a difference, thank you!
Glad to hear the video is helpful, that's what it's all about!
Getting a bag right now!!! I’ve got a few older batteries and I’m convinced these work!! Great video man.
I ordered a replacement for the bag I destroyed in the video.
@@RCVideoReviews good review and great realism of how the bags react. They seem strong!!
Thank you. I, like many others have that smaller Lipo pouch bag. Good to see it tested.
This gave me some Ideas based on what I saw here:
1) Keep a smoke alarm IN the bag, you'd hear it if your in another room...which let's face it us what most people do.
2) Store less batteries per Lipo bag, have multiple bags with only 1 or 2 batteries in there.
3) Make note of total cell in your bag. If you know there is a 6s and a 3s in there. Count the pops off ass the burn up. If you haven't counted to 9, wait.
4) Would a sacrificial non-pressurised container of non-flamable expanding foam in the bag help. Idea: it breaks out of it's container from the heat of a broken cells, then quickly fills the bag volume with foam, thus reducing oxygen volume in the bag = more time to act and get that bag outside away from valuables.
Wouldn't the smoke alarm melt instantly inside the bag?
Just purchased one of these bags on Amazon and was wondering the same thing…do these bags perform as promised? Thank you so much for this important “community service experiment!” I feel much better about my purchase now👍🏼
must watch thing , thanks guys for all this effore , a like is not enough .. i give full it full credit
Much appreciated!
Thanks for this video. I learned that even if one cell goes it does not mean all will go. Regards from New Zealand
I was very surprised at this outcome. Thanks for the comment.
I would love to see these on top of something flammable like carpet or wood to understand if these would be hot enough to burn material through the bag
@@GlobalSourcing I don't know if it's like that, but I imagine that there is some kind of buffer to the ground so it won't get hot to burn the ground where it's standing. But I don't know.
You would have to be very dumb to store a bag full of batteries on a flammable surface. Bag goes on a concrete or metal surface.
Nice job guys. I usually store my batteries in an ammo case
I've just watched a video of a Lipo fire in an ammo case, you should probably get a Lipo bag unless you want your ammo tin spitting flames 2 foot in the air like a flame thrower
@@dannyherbert4482 🥴😵💫😮😧
Does this work for lithium ion or just lipo
Thank you for making this. What I have done is put each battery in it's own single fireproof bag and then put those into a bigger zip bag like you have. I wonder how they would do. Also interested in what a charge fire (while it is over charging) looks like.
But this is super helpful!
I'm going to do a v2 video with some of the more common requests. Thanks for taking the time to leave a suggestion.
I put 3 in a bag and then 3 bags in an ammo box.
@@RCVideoReviews by chance do you have a timeline of when? Thank you for the information
Great demonstration. Very important information. I have three of the box style lipo bag. I always store my lipos at storage voltage in those bags. And I don't charge unattended. 🤓
I really appreciate that you did this video. I have battery bags and was very curious to see good testing on them. Great job. Good content.
Thank you!
Thanks for the video, I put mine in individual pouches inside the bigger bag to avoid a chain reaction. Your experiment reassured me that it should be relatively safe.
Even more protection--doesn't hurt. Good plan.
Good idea, I use those “Bat Box’s”. I should probably have lipos in individual bags inside.
Great test and showing that these bags do help and increase the safety factor.
Big time!
Thank you. Great test. I've always assumed that the fire would become uncontrollable with multiple batteries. It's good to know the bags work.
You're welcome.
This is a must watch!!!! Thank you so much.
You're welcome!
I ran a similar experiment with similar results. While not perfect, the lipo bags are a worthy investment that buy you time. Also thought of something else. How many of use bring a fire extinguisher when we fly? Another worthy investment. Shitty to lose a battery or plane but worse to light the surrounding area on fire.
Double bagged and in 50cal ammo cans, that is how i roll for my FPV Batteries. Although i have never seen or heard of one blowing just sitting in storage.
Awesome test. 👍👍🇺🇸
I heard of people taping a bag of sand to the lid of the can so it dumps when it melts, thought that was pretty smart.
I have been playing airsoft for a while. I mostly use NIMH batteries but just purchased my first LIPO batter recently. I knew of thier potential to catch fire so I purchased a LIPO bag with it.
Very useful video.
Sharing this with my flying buddies.
Thanks!
great video guys, I am getting back into RC after 40 years away. I've bought all the bits for my boat. I haven't purchased any batteries or charger yet. I am all spooked out now. I have purchase lips bags and will now buy a metal container to put lipo bags in. I am reading all the do and don'ts with lipo usage and safety. The lipo bag did burn as you said because you introduced oxygen. When its was still zipped up it did its job and gave you enough time to make the next safety move.
Don't be spooked.
4.2 max charge (4.15 for longevity)
3.8 storage (don't ignore this)
1-1.5c charge rate only (5c is abusive)
3.6v/c - stop flying
3.3v/c - stop flying right this instant
Great video guys, very educational. Thank you!
Another useful test world have been to surround the bag with something flammable, e.g. straw.
After all, the objective of these bags is to prevent the fire spreading.
Ha, I have the small bag from your video, I'm glad it does its job! Thank you very much for the test!
You're welcome!
Man. I dont think that bag would work. But this test shows that it does. Thanks for the video!
Ditto. I thought a lipo fire would cut through these bags quick.
@@RCVideoReviews or is it because battery technology has improved? 🤔 Less fire, more smoke
i admire your courage to be there with so much bad smell. Thanks for the video it's good educational video
Thank you so much for taking the risks for our education. I only charge outside, apart from the little 1S for indoor whoop flying which are charged in my office in a tin.
You're welcome. Glad to help.
I think this video will save so much damage and very likely save lives. Cheers lads.
Great video. Your tutorials, especially open tx and Edge tx have helped me alot. Keep on with the good work 🙂
Thank you for this vlog!! This is one of the best !!
I'm looking for heat/fire and water protection for batteries, from in and out, that will be partially outside, thank you for making this video, very helpful!
Lots of people like ammo cans. I would probably want to provide some kind of ventilation for those though.
Thank you for tested these!
Very Helpful.
21:15 Smoke is intelligent form of life. Whenever you have barbecue, camp fire or lipo burn, it will find you. 🙂
You know it.😂
Now i am more confident on my lipo bags
11:06 we can see fire.
Thanks for the video
Thank you for the video. The price of burning all those batteries probably add up quick!
Those batteries did cost $$, but we burned batteries that had been taken out of flight service due to age/puffiness etc...
You're welcome for the video...
Very interesting, I have always kept my lipo's in these type of bags. Nice to know that they contain the burning flames 👍
Thanks this an excellent video, I wondered just how well the Lipo bags work, really good is the answer.
They surprised me--that's for sure.
Good demonstration, I use these bags but also store them inside vented steel containers. I think il get more smaller bags to separate lipos a bit more.
John friend’s commentary is priceless.
You need more PPE! Get some full face gas masks and long gloves or suits…
I appreciate your work and the review! Very helpful!
That was a great video, I always wondered how those bags would react. I also keep my batteries in a ammo box, curious how that would react in this scenario. Thanks again for the video.
You should make sure the ammo box is vented somehow. You don't want to build a lipo bomb.
You're welcome.
@@js32257 yes, I always leave the top unlocked and cracked open a little…
@@Joneszee1969There is probably a gasket in the lid you can remove. It's to waterproof them for ammo, but will leave an air gap if you pull it.
I'm using about 4 of these to store batteries, but fortunately have never had them tested. I'd like to see the results, too!
I would also surround the batteries with sand-filled ziplock bags, to assist with extinguishing any fires.
I use both of those bags. Excellent experiment. Thanks
I Did learn something today. (Oh, wait... that's a different channel. 😁) I too expected a quicker chain reaction. Seeing an unburned pack right next to a burned one was a surprise.
GREAT VIDEO GUYS!!!
Appreciate the support!
Thank you for your demonstration.
If you must put out or contain a lipo fire whether as a result of puncturing or overcharging, what is the best way (personal experience or published results) to do so? Pouring sand over? Submerging in water? Covering it with a bucket? Other?
If it happens, it will burn too hot to really put out, but it will only react for a short time. You mentioned covering with a bucket, yes, that will help protect items that are close and help smother remaining flames after the reaction. (metal bucket, not plastic). Basically, protect whatever you can, but when they go, you can't stop them. Keep the batteries and charge areas isolated as much as possible. Create a mental plan, know how to react, and don't panic. I keep a cheap mini BBQ grill with lid right where it needs to be. A cheap little grill is the best money you'll ever spend, if it is needed!
It's seems that that Bag Actually did it's Job....Thanks for making this Video....I use these Same Exact Bags and always Wondered if they Actually Work....
You got the spirit of the video. Glad to help.
Thanks again
Great demonstration!!
Thank you.
I just received some bags and was wondering the same thing lol thanks for the test
I always figured with these that it would give me time to toss the bag out of the house or car..They do work.
@@MrDLRu I always figured that what it was designed to do 👍
It's all about what chemistry Lithium cells you have. LiPo those bags will work fine for but if you have NMC, Li-NMC, LNMC, or NCM those are very violent that bag would not of contained the fire and the runaway is just as fast. I would recommend shielding if you want to pop one of those.
Excellent video. I have a 10.4Ah lithium ion battery for a wheelchair which I'll be taking on an aeroplane and it was so good to see how well these bags help contain a damaged battery making it a bit of a no-brainer decision to get one. I appreciate it's a different tech but is it reasonable to assume that Lipo and Li-ion batteries behave similarly when damaged ie the bag will operate as effectively with a LI-ion battery? Perhaps airlines already use them but the effectiveness suggests that their use should be mandatory on flights.
The one thing I wanted to see ,was did the outside of the bag get hot enough to set fire to things on my desk? Paperwork , plastic items do the walls of the bag insulate as they are supposed to?
Brilliant video thanks
We're going to do a v2 video. Keep an eye on the channel.
@@RCVideoReviews did you ever create that v2? I can't find it if you did.
I'm going to say the material that is around the zipper is what was on fire and on the first bag ignited when oxygen was introduced I think a lot of times when we get the fire right off the bat I think multiple cells erupt at once excellent video guys I shed a couple tears 🥲when I seen Good batteries being used but it was for the best👍🏻🤠
Yeah, it was for safety education. So worth it.
Great video for sure. Good to know that the bag is capable of containing the fire and perhaps even slowing it down or preventing one pack from igniting all the rest.
I have a question though - when are LIPO's most likely to catch on fire? What conditions or situations? Is charging inherently more dangerous than storage? What about in actual use when the power is flowing out of the battery? And last but not least storage at home or where ever, where they are stored between uses.
A lot of people use the metal ammo cans - I would love to see an apples to apples comparison of the same batteries exploding in a bag like the one in this video and an ammo can. It seemed like one thing that might be going on is that the bag is limiting the amount of oxygen from the environment and I think a metal ammo can is likely to have more air space inside than the bag you used. I don't have the dim's so i don't know if this is true.
I know it is a year after you made this video but who knows, perhaps you will do a part 2 on this topic. Cheers
Now do the same thing with ammo cans, and other things that modelers commonly use to store batteries. Excellent video. Subscribed.
We are planning a round 2 of this video featuring a few different containers and fire inducing tactics.
@@RCVideoReviews Cool! I'm new to the hobby and the channel and I like waht I see. Except the FAA which has no place here and these little IED's we use for batteries. I'd like to see something safer.
I keep my lipos in a steel ammo can from the military surplus store. They're dirt cheap, and if they keep ammo safe im sure they can contain a few lipos
Thank you for sacrificing batteries for our benefit! It looked like the larger bag’s zipper is what burned, not the bag.
Is that what you saw?
Thank you.
The teeth on the zipper survived. The zipper material separated from the bag. The fire probably burned the thread allowing the two materials part.
I use bags inside a metal ammo box. That would've been a good addition as well as I've heard the ammo boxes are really good as well
9:50 why .. at 3.8volt they won't burn? or hardly? 20:00 IF they would catch real fire, maybe they would burn all together quickly, but since it's only smoking?
Hello, how are you? They will burn at 3.8 V per cell. Just the fire will be smaller and shorter. Because there is less energy stored in the packs that it would be if they were fully charged at 4.2 volts per cell. No fire is a good fire, but definitely a smaller fire is better than a big one.😂 Plus good maintenance and handling of the batteries such as not overcharging ,over discharging, overtasking the batteries and maintain them at storage voltage and balance just makes for a healthier battery, not very likely to just burst in flames all by itself.
What i took from this is to keep your batteries in separate bags, that way they can't set off other batteries. Might seam over kill but its better than losing all your batteries or you home or car.
I like my old ammo cans to keep my lipos in. the "exploding" part, is 99% because the charger malfunctions, causing overcharge of the cells. When overcharged, they are explosive.
They are also explosive depending on who we’ll they are built. How tightly the pouch is sealed and how strong it is. I’ve seen tests where the cells to pop and make a bang. But most people who say “LiPo explosion” really are talking about round cells like are in e-bikes and computers. Those almost always make a loud pop. Just the nature of their design.
Makes me add trying to think about reducing smoke damage. Have seen box that has smoke filter.
Probably a good idea because the fumes are dangerous and it stinks.
I literally just opened that exact lipo bag today... Guess i'm about to find out if I need to return it
I think you'll be happy with it.
I use empty .50 cal. ammo-cans with installed overpressure release valves to store (and charge) my Li-Po packs. I either place these boxes on a concrete floor or on bricks, to prevent heat transfer to a combustible surface.
The way you’re igniting them is causing them not to be as fire. You should be igniting them using the nicad setting on a charger that will cause a battery to explode. I have videos that occurring in my house so I’m certain using a nail doesn’t create the same reaction
Batteries deflagrate, they don’t explode or detonate. However, in some cases from the viewpoint of the on-looker, it does appear to have been an explosion.
A test I'd like to see is if they stabilize inside the bag - i.e. leave it for 24 hours closed - does it ignite when you open it?
Thanks for doing this. Ive been really lucky so far but try to be safe.
You're welcome.
What does it mean to store them at “storage voltage”??
A conflagration from thermal runaway is one thing but fumes can be quite another. Is it just smoke? Keep down wind at all times and breathe away from the general direction of the fire.
😂 Looks like two OSHA instructors lighting a match... No, it's really a great video, thank you!
:)
👍😅
Great video!
Next test idea: Put flamable material next to the bag to simulate an incident inside a car.
could you test with full discharged batteries. Is this safe when battery has no energy.
I am planning a v2 of this video. So keep an eye out on the channel.
Could have added a test putting a stack of newspaper on the bottom and let's see if the heat is also insulated or dampened enough that there is no secondary fires generated outside of the bag.
I would be curious to see the difference between a 4.2V/cell and a storage voltage battery.
Thank you for burning money and destroying your patio. Seriously, very much appreciated!
No worries!
I have personal experience with this phenomenon with an E-Bike project I had some time back. One of the batteries got shorted to ground and exploded, but none of the other batteries, including the one DIRECTLY ON TOP, so much as flinched throughout the whole ordeal. Not at the time, nor in continued service 🤷
Interesting test, BUT, if that bag was set on top of carpeting, would the bag have gotten hot enough to melt and ignite the carpeting, thus burning down a house?
Since we didn't test it on carpet inside a house I have no way to answer that question based on observable fact.
If had to guess, I'd say no. The bag wasn't hot enough to initiate a fire on nearby combustible sources.
Thank you for doing this!
The bag is pretty impressive, it stops the chain reaction when the bag is closed and the oxygen is used up.
Yeah, it is impressive tech to contain that much energy.
Can you put fires out with a fire blanket?
I wanted to thank you for doing this test. I would say there are a lot of people charging lipos on pine or ply shelves, wood work benches, etc.. Do you think that these surfaces might ignite. I was thinking it was too bad you did not chuck a board under the bag at the same time. I use a shelf made of drywall to give some extra fire resistance. I wonder if I should switch to concrete backer board for even more fire resistance.
Just FYI, my first battery for the Phantom, was dropped and hit a rock. It most definitely did pop open like an explosion...not super loud but exploded open into one very big fire!
Yikes!
very educational!
Glad you found it useful.
Nice to know. Thanks.
Sure thing.
Been watching a few of these and notice a huge difference between, Punchers & overcharging. Over charge is the likely one & it's a fireball...
I don't charge in a bag though. I don't know anybody who does.
can a lipo at storage voltage still catch fire? Thanks for the test! Can we kill a very active fire from lipo using a fire extinguisher? What are your thoughts on ammo boxes? Are they overkill?
At storage voltage, they still have energy, so 100% they can still burn. As to whether you can put them "out" with an extinguisher, this is more nuanced than the comments in this video would leave you to believe. You could probably temporarily extinguish the flame--if flame exists--with water or CO2, but until the energy is consumed, you cannot stop the chemical reaction which means the reaction will continue until the fuel is exhausted. This does not mean there will be fire though. I've seen entire packs react without seeing flame.
Personally, I think ammo boxes are overkill. I've been using these batteries for at least a decade now. I fly *a lot*. I've built 50v systems, long range systems, parallel systems, and have used every power level from 1s-12s in about every capacity from 300mah to 60,000mah and I've used batteries from many different labels. I have yet to set one on fire unless it was on purpose or in a crash.
I believe if you use proper functioning and appropriate equipment, and the proper values for these batteries you don't have anything to worry about. I suspect most of the fires you see/hear about are due to misuse or faulty equipment. I've also handled thousands of questions on this YT channel and one of the single biggest issues in diagnosing/resolving issues is getting *all* and I mean *all* of the relevant information at the start of troubleshooting. IMHO the same applies to these fires you hear about: I believe we're not getting *all* of the information.
@RCVideoReviews Thank you so much for this amazing response! You went beyond from the response I was expecting! Really appreciate it big time!🔥🔥🔥🔥🔥🔥😉🥰
I've seen people recommend a metal ammo box. I'd like to see somebody test that with the lid open a crack, vs with holes drilled, vs unmodified and sealed shut except for minimal holes for charging wires.
I saw a "test" from some company trying to sell their safe box showing the ammo cans would just explode, but they intentionally didn't modify the cans. The trick to keeping them safe is apparently to remove the rubber gasket allowing pressure to vent but not much airflow. I'll dig around and see if I can find the videos again but I think they might have been removed by now.
@@AchronTimeless Neat. That's what I've been told elsewhere about ammo boxes, but I've never seen it tested.
@@raztaz826 I tried pasting a link but the spam filter must've blocked it, youtube is notoriously bad about letting you link to things in comments. The video title is "How to store LiPo battery safely - In depth LiPo fire tests" and includes an ammo box left open, closed with no seal, closed with seal, and with a bag of sand on top of an open can as an attempt to auto-smother the fire.
@@AchronTimelessthanks!
Can only loaded lipos burn? Safe with empty lipos?
I'd like to see you do the same experiment but on a car back seat or somewhere else that could potentially catch fire, a realistic worst case place you might have these
A lot of newer batteries use a different chemical make up in lipos that produce more smoke than fire and I have noticed that fully charged or used around 3.6v a cell they still will burn almost the same if they go up but yes a fully charged batt is less stable sitting around.
Thanks, very helpful
You're welcome!
Better a bit safer than sorry.
Right before christmas a club member had a lipo fire in his house.
Lipo fires don't happen often but they do happen 😢.
Do the best you can to keep your loved ones safe.
Do they make Lipo bags that will hold a Tesla? 😂
@@farmerjohn2262 that’s funny!!!
They should come with them Lol
You missed the “po” part.
Actually, now that I think of it, the Chevy Bolts were the ones that use the pouch cells