What If Your Battery Explodes? Nobleman Fireproof Bag Review 

Regarding the Mario Contino's assistance in NOBLEMAN's testing of fireproof bags, first of all, we are very grateful to the technical support for helping us test the gas capacity limit of the fireproof bag. Thanks a lot. The reason for the final analysis: The fireproof bag is made of a whole piece of fabric, with only one seam (the only seam shown in the video). The inner volume of the bag is fixed. When the battery is burned, a large amount of gas will be released instantly. The gas released by the battery exceeds the volume limit of the fireproof package. In this test, 45 GA cells and 2 lipo packs are used. The more batteries, the more gas is released. When the gas released by the battery exceeds The volume limit of the fireproof bag caused the cracking of the seam, as shown in this video (in practical application, due to the blocking of the battery box, the gas will not be released instantaneously, but will pass through the gap of the battery box, and the release pressure will be greatly weakened ). After discussing with our technicians, we will take corresponding strengthening measures 1. The fireproof bag flows out of the pressure relief port, which allows the excess gas to be discharged smoothly. 2. Reinforce the fireproof bag seams with metal rings. 3. For large-capacity batteries, properly open the zipper opening to ensure smooth exhaust. At the same time, We will test the above three schemes separately, adopt the best effect scheme, and give the net red a strengthened fireproof package, and the net red will continue to test for everyone, so stay tuned.

That fact that safety is the topic, should be a concern for everyone. I can only speak for myself, but I am very glad you made this video. You're doing the entire community a favor by raising awareness.

the explosion is so much more violent than what the video can show, but this is what the PEV influencer community needs to do. Nicely done!

Thank you for this video. I lost my home and possessions 8 months ago, due to a lithium-ion battery exploding. It wasn't charging or in the drill it belonged to, just sitting on a workbench. Thankfully it was just myself and the dog at home and I managed to get us both out. Like you said, the inconvenience of a battery failure is far worse.

Great video dude. This is the kind of proper testing that the PEV community needs. I hope the "Nobleman" brand will take notes and actually test their future products!

Excellent work Mario, thanks for commiting the time and money to this level of testing! If only the manufacturer was willing to put this much effort in!

Appreciate the level of detail and thought that went into this test, and I hope that Nobleman can use the findings to figure out a solution to these very real issues. I almost pulled the trigger on this bag, so you saved me from a costly mistake. Cheers!

Thank you so much for doing that testing and this video! I know it took a lot of time and money but I feel you have done the community and the manufacturer a great service. I hope Nobleman Tech releases an upgraded bag and arranges for you to test it.

This was by far the BEST video content for not only a safety product review but enlightening us on how to semi avoid this catastrophe!! Thank you so so much for this information and I was glad to help out in anyway possible! Looking forward to collaborating again soon!!!

Your last several battery centric videos have been amazingly informative, thank you for coming up with them and sharing

Wow, glad you took the time to perform a proper use case test and didn't BS around any manufacturer specifications or ratings. Actions burn hotter than words 🔥🚒 Keep up the awesome videos!

I have to say you give the most informative videos for batteries and onewheels.

Full Respect! This video is what people need to hear and know. It helps keep us all be safer to see these results.

Thank you sir! best vid I’ve seen showing thermal run away and very digestible explanations on what it is and how to avoid it. Testing the bag made it even more interesting.

Thanks for doing this for the community this is the kind of testing we need for sure need more of these videos even if it’s expensive 😂🤘

Thank you for posting this. I lost my house in a lithium battery fire. It was from a Ryobi battery that was on the charger. I have been super careful with batteries ever since. I was looking for an option to minimize risk. This video made me realize how unlikely it is to be 100% safe with a charging battery.

On the Nobleman website they have a vid showing how their first bag failed but after improvements were done it didn’t burn anymore. The problem though wasn’t just not being fireproof. The main issue was the bag being unable to contain the force of the explosion which tore it open and allowed the fire out through the hole. This issue was not addressed in the video on the Nobleman site. They merely showed their bags were now made with fabric that was more fire resistant than before, but if they still tear open from the force of the first ignition then it doesn’t matter how fire resistant the fabric is.

Mario! Thank You for this video. Thank You for all the research and dedication to providing us with the knowledge that you do. I especially love the part where you say “Does it provide you peace of mind? It doesn’t provide me any” Great statement and just spoken out of good ole logic. I will never let my wife watch this because the result of her overreaction will empty my collection of PEV’s. Lol. Great awareness video PSA so to speak. If you can’t supervise it, don’t charge it. Fantastic rule of thumb. Thanks again Mario!!!

I have no idea how I'm just barely finding your channel. The content and quality of your videos are super top tier, and the style is refreshing to see. The pratical part of testing/reviewing is a big thing. With videos of tests being provided and more knowledgable people in the community approving it, it was hard to even question if its safety covered all scenarios. Also the danger and lack of knowledge to test such a thing again (after tests were supposdely already provided). Didn't even realize the bags were no longer available till now; which sorta takes away any meaning from me unlisting the video. I did anyways tho. I saw them mention adding some sort of extinguisher to the bag in terms of a v2. Hope to see what comes of that

Awesome video dude! Incredibly informative.

Thank you. It's like a length of fireproof tube needs to be installed on the side to vent gas. We used to look for a "UL" label on products to assure that products were held to a standard. We seem to have let that slide in recent decades.

One MILLION THANX for sharing this potentially life and property saving information ! My first e-bike arrived 2 weeks ago, and I have yet to even charge the battery after watching a few videos about battery safety. I was trying to decide which fire resistant battery storage bag is best? Many other videos discuss the bag's "fire" proof abilities, but they don't discuss if these bags can resist "explosion." They do warn not to charge the battery while sleeping nor charging when away from home. They mention that if the bag was on fire, if the bag has long handle straps, you would likely have time to grab the handles and toss the bag outdoors. Well that might work for people who live on a first floor or near an exit but for people who depend on stairs or elevators may be in serious trouble trying to "throw a fireball outdoors." I am really looking for something that will retard an explosion. I did see some "ammo" boxes online. Not sure how those work. But thank you for this. ⚘️⚘️⚘️

Great video 👍

Good job on the Rossmann video.

great video, plenty of info, but still would like to see the aftermath more

This right here is why I'm a patron and subscriber. Well researched, practical, thorough, no bullshit. Three cheers. As to Nobleman's response, it sure didn't look like the seams are what failed, it looked like the material ripped. In any event, making a stronger pressure vessel is not a way to make the situation less dangerous, that's like trying to make a safer pipe bomb by using thicker pipe. Any system which wants to really solve this problem is going to have to vent the overpressure in such a way as to not set the surrounding surfaces on fire. Tricky problem, for sure, but I don't see any way around it, the volume of gas produced is gonna have to go someplace.

This review is so helpful & important- thank you. These batteries are so dangerous, and we all have so many of them around the house! I've been putting Li ion batteries in bags everywhere I can. Now I'm thinking I need to double bag them, given the (as usual) disappointingly low Chinese quality of them.

Hi Mario I am the Silvertopflyer I'm honored to meet you Got to tell you that your performance with Louis Rossmann was amazing It must have been something to have him in your shop Congratulations on your performance

Good information. Gratitude.

love this channel

Excellent video, major props to you for making it and doing a real test. Do you think the results would be different if the bad was a thick vulcanized rubber ? Or would it likely just keep expanding till it also exploded ? If so, then what would YOU like to see? Would a fire proof type box encorporating a a grill and baffle be a better option as it would allow for off Gas?

the lack of any form of pressure release ports was a clear design oversight that even me after looking into lipo safety for few hours could see seems to me they just bought a fireproof fabric and gave it to a seamstress without any proper technical knowledge or research ;o]]

As a volunteer firefighter and part time rider and engineer. Honeywell, the maker of most of our turnout gear invested billions in the development of our gear. I am amused that this is even marketed. Pro tip, if you are doing more battery fire tests, get some SCBA and wipe down everything that the smoke/soot came in contact with as it’s also carcinogenic.

great video perfect for the community

Strengthening the bag seams! Those expanding hot grasses have got to go somewhere or they have to be contained by something immensely strong. I don't think I would trust anything other than a steel box that has some directional ventilation to the outside air.

Thanks! I have several onewheels.

Amazing video. Highly educational. Quick question regarding the bag. What if the zipper was slightly open? The bag shouldn't pop like it did, the gas would have an escape route.

This definitely makes me a little nervous about my boards heh. Should we be making a habit of opening our boards to inspect the batteries? And if so, can you recommend how often we should be doing so?

amazing video.

Just watched a video on "Firesak" that has side vents to let out pressure. Looks much more promising.

I charge my batteries on a metal surface and always monitor them in person. I also have an e-bike and I charge the batteries in a metal container out on a concrete patio. The container is layered with and not fireproof insulation to be able to contain the 3,300 degrees if the battery should catch fire. It is also monitored and set up on a timer. For my LiPO batteries I have a quality intelligent charging system.

Great video. Show how dangerous lith. cells can be.

Is there any way you could put some source of fire extinguisher in with the bag that would explode and put the fire out

The exhaust from my motorcycle burned my bag exactly where an anker battery pack was stored. It pretty much disintegrated but some clothes, shoes, tools were unharmed… should I throw everything away? Sorry for the unrelated comment, great video! Hope you can help.

How about do that test in a barbeque grill with bailing wire wrapped around it. In my neighborhood most people have one.

i got my "piece of mind" with a used (but real) Military ammo box (which you can get for like 10-25 USD) drill a hole in it and closed it with ductape .. so if one goes off, the tape will be blown of, but the pressure can go out and the fire will be centralized around the hole. .. best solution in my opinion (and the cheapest one)

I keep my one spectrum g2 3s battery in a commercial grade cell block box .. that was over a 1,000 dollars and also have one cellbock sleeve that was 300 dollars .. the watt hours on all these are for lithium batteries 20 or 50 times the size.. but one can never be to careful

What is the best way to store cell phone battery banks, I have a 13,000 mha battery and I am scared of it after seeing this video! What about storing them in a metal filing cabinet that is not air tight so it won't blow up. Would this be better then keeping it in my kitchen drawer?

would conformal coating extend the life of the insulation? would it work on batteries that may be exsposes to water.

I have two 20 amp hour + 2 13.5 batteries. Not like you could leave them outside in the winter time. I don't even think my ABC fire extinguisher would put one of those out. How much heat comes out of these like how hot is it it looks hot enough to weld

okay, is there a way that we can get our battery packs inspected? If these vehicles are becoming more common place, then there should be a way to have them checked out because the average adopter of these will not be electrical engineers. like after so many miles we can take them into a inspection service.

Very interesting

What if they use lithium iron phosphate batteries? I read that they don't burn like this

This is insane 😳

Excellent explainer, thank you! You mentioned supervised charging, which I do. But in your opinion, is there any appreciable risk of a battery pack catching fire in a board just sitting there and not turned on or charging? For the sake of argument let's say it's been at least an hour since charging.

Be good to see controlled fires of batteries in boards, as ugly as that sounds. And maybe some discussion about the risks of riding in the wet on an unsealed board, relating to battery fires. Bms usually die before that happens but not always, depends where the failure to the battery case has occurred to let moisture in. It's terrifying to open a onewheel to find water sitting Inthe battery case! Can a custom enclosure be made to limit the fire in a positive ways, that atm I don't even know

Very interesting. A bit out of topic but in your opinion, provided it is correctly installed, is a CBXR more dangerous than a regular XR ? I mean, regarding fire.

If I may regarding the fire resistant bag exploding what if you had used a bag with a charging port? Then there would have been a vent hole correct???

what battery safty bags or storage stuff would work?

Do you have ANY recommendations for a ebike battery fireproof bag?I been looking around and haven't found any...

Please do a firmware GT video!!!

Did test bags that worked?

I didn't see what for me was most important thing: HOW DO U PUT IT OUT?

THE ONLY SAFE CONTAINMENT OF A LIPO BATTERY FIRE IS AN ENCASED CONCRETE BUNKER! lol

Like I said add it to a safe or safety box for charging or storing etc

What does one do with a defective swollen battery. Put it in the garbage? I don’t think so…

It's extremely difficult to contain these sort of expanding gases. At least the bag can contain some of the shrapnel - burning batteries sprayed all over the room can't be good.

The lipo bag should have a heat alarm or smoke alarm to detect early warning what I'm gonna do is have an extension put the lipo bag outside on the fire escape outside my window

Will it protect documents?

NO bag should be without a vent port. Charge with that fire jet in mind.

I have a 52v Ebike battery that shorted all the bms wires etc ( from water damage ) is it possible to break down the battery to individual cells and renew all the shrink wrap and insulator rings and fish paper rings and keep the good cells from the pack ! ??

Damn ! That safety bag is SH T!!! I might have to give this hobby up My apartment going up in flames 🔥 isn’t worth all the fun that I have on these wheels. I ride my Msuper Pro the most and it’s the wheel that I would ride the most in the rain 🌧 ☔️ I was told that it’s not sealed too well for rain and water damage my cause fire when charging? Is that true?

20:17 Ironic. They don't know same can happen to their skateboards. it looks like they all have same looking board/model...

What would happen if you drop a runaway battery pack in a bucket of water? 😂

The idea that you told them you were going to test it and they didn't send you their best possible product (according to their response) is questionable enough. Nevermind the house burning down scenario this would have created.

So wtf man I wanna leave my sh!t outside now but the weather will damage it so wtf should i do ?

Most people that use e-bikes/scooters are doing so to save money on gasoline and the expense of owing a car. The majority of Americans are being forced to downsize their lifestyle and are financially struggling. Now imagine getting an e-bike/scooter to SAVE money and the @$%& BURNS the house DOWN !!! NOW IMAGINE THAT !!! 🤯

Well.... that was terrifying. I'm glad I don't own a PEV.

JUst what is a Libo? Liebo? Lie Bow?

Sounds like its safer to charge outside away from a structure.

4:13 You can see the cells slowly expanding from the start... eek

your fully charged cell did not caughed fire when it was shorted, so you removed that part.

I find it odd they would send you a product they knew would fail and then say they updated the stitching in newer models. I really odd and misleading, so much so that leads some one not to trust their product.

Firesak next?

I store my batteries inside our fireplace since we never use it.

JUst what is a lie bow? light bow? libo?

hi the reason you cant recell those batts is because there using can bus comms ie the bms must talk to the controller to turn on the do the same thing with bosch ebikes and every company uses there own version so very hard to crack but it can be done just not cheap. with a bosch bms if you cut power to it it looses the can bus software tho it can be recelled and it will charge as soon as you plug it in to the bikes controller it is bricked and the bms is a bin job why 99% of batt builders wont touch them with a barge poll because the signal is sent from the batt to the controller and back every 30 milliseconds. i have a 2014 haibike with a 400w batt and it now so old it can just do 5 miles on a charge but i can not do bugerall to fix it my self liofit in germany can do it but it will just end up costing more than a new bosch batt and replacing one locked system for another one as if you remove power it kills the bms as they somehow mod the bosch ones i did ask but top secret !!! and cant tell me for security reasons. as for the motors none of them sell bearings or any parts and dont use of the shelf bearings either so have to be custom made with a min order of 1000 in a gen 2 bosch cx motor that i have there are 10 bearings inside the motor and after 10.000 miles all need to be replaced tho they do make a service kit that you can fit it is only the right hand side cover and just 2 of the bearings you would need. peter at ebike motor centere / performance line bearings started a company up a few years ago now as had same bike as me and found the same problem you cant buy the fkn bearings so now sells most bearings for most motors and ships them world wide and can fully service them bar the shimano motors becouse he did fix some of the ep8000 motors only to find out the software can detect the motors cover has been opened and software locked all the ones he had worked on so had to replace them all as shimano blamed him for dearing to open it up fkn joke so fook those things and the batts are even worse to fix than most others as well. i have been trying to tell louis this for years but now even bafang are going can bus so forget using there controllers if you want to go fast and i have even seen a vesc controller used on a bosch motor if you rip out the controller board. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gz5cjFxzDsE.html&ab_channel=PerformanceLineBearings

Posting again to ask a relevant question.. what WOULD exterminate a battery fire ? Is there anything?

Now imagine your EV car 🤨 parked at home

why dont we make rockets out of batteries there is our thrust

Well... my question still is... wtf are your alternatives that are practical. People buying these bags are trying to prevent practically. Telling people ahy those bags don't work and that's one thing, but providing solutions is a whole lot better. And seems less douchey

My comment was deleted due to link, I guess. There is an outfit in Europe which makes a bag which has a top vent and succeeds tests like this. Lith*** Safe. Unfortunately this company has not partnered up with Amazon to mass market these. You have to request a quote. Very poor marketing from this firm. They need to promote these and mass produce them so all have the opportunity to improve safety in buildings. The current battery technology is unacceptable and is only used because battery technology lags far behind the devices which they power. Billions of dollars are being spent on R&D by car companies to come up with fireproof solid-state batteries for EV's which will not burn, and in some years these will supplant current technology. In actuality, acceptance of present technology is a mass delusion by society and really should not be used at all. The E bike industry is just now being forced to accept UL lab certifications for some reasonable safety, after hundreds of e bike fires in NYC over the last two years. Still not enough. As people misuse charging of these devices over time, more and more fires will happen, creating a safety crisis, maybe mass outlawing these being kept in buildings. I have already read several condo associations and apartment managements have denied these in their projects due to fire risk.

What if you charged the battery in vacummed (almost no oxygen) box ? Could it still explode and catch fire ?