How to store LiPo battery safely - In depth LiPo fire tests

[@mitchellroberts7954]

Wow, you sacrificed a lot of batteries (and in turn money) to do these tests. Thank you for doing this for the community.

[@Chris-xo2rq]

No kidding that 16AH 6S is like $300 by itself

[@Xeranium.]

@@Chris-xo2rq Not if broken..

[@dominiclallande]

The LiPo bag with the 16000 pack was terrifying.

[@TECHnoman753]

Yaaaah 6s are not properly made kuz there in the gray zone of High voltage and rc so not a lot of ppl know how to set up or property charge. Also the HUGE mAh batteries are not worth it and never store batteries in same container

[@divingfalconfpv4602]

Yea 16,000mah 6S is a HUGE lipo. Alot of stored energy just waiting to release

[@samonesa9125]

I absolutely love that you tried to recreate the environment where we actually use these products. Seeing whether the bag or box themselves can hold on is one thing. Whether the heat will ignite the surroundings is actually very important but often overlooked. All these tests are done in the outdoor and you can't really ignite concrete or asphalt.

[@richsettembre7486]

Martin and Jorma: you both should get your community's "Good Citizen" award and an award from the AMA for doing the hard work and spending the money to create these educational and CAUTIONARY videos which can save lives and property. You should get an award from your local Fire Department for same reason. Thank you.

[@TheKid377400]

Fantastic video, straight to the point and informative. I never realized the danger having the ammo box sealed could pose.

[@bigbluechopper24]

Thank you for making this video, it's the best of it's kind on the internet and hopefully will have saved many houses and lives!

[@tfssid]

Big respect for the efforts of time and money that went into this video!

[@RajuCam]

tfssid, thanks a lot!

[@frankposterello1628]

You definitely have the best series of lipo containment test on youtube, thanks for putting them together. I was happy to see the bunches of batteries weren't as volatile as the single massive 6S-16Ah. I guess because the big one goes all at once where all the misc batteries have to spread to each other. Makes me feel a little better.

[@meanmarine24]

Worth noting that the smoke generated can make a room inhabitable, even if there is no direct burn damage. Make sure your LiPos vent in safe space

[@dwade_fpv]

Thank you for the work put into making this video!

[@RajuCam]

DWade FPV, thanks!

[@Pip2andahalf]

Thank you for this interesting, informative, and expensive test. This clearly exposes the huge amount of energy and hazard potential of lipo cells and “lipo bags,” which seem virtually useless.

[@RcLifeOn]

Thank you so much for making this video! You wrote in the description, and I quote: "NOTE: Batteries in storage (~3,7V per cell) are a lot less violent than fully charged or overcharged batteries." Even though they might not be less violent, at least they might be more safe to store at that specific voltage?

[@RajuCam]

Thanks. LiPo batteries are definitely safer to store at 3,7V per cell than 4,2V per cell. This will also lead to longer battery life.

[@RcLifeOn]

Great! I always store my batteries at 3,8-3,85V per cell, in fact, I rarely fly my batteries lower than the storage volt level.

[@DroneZoneDE]

Just two things to be added: There is huge difference between storage at 3,7 to 3,75 V and 3,8 to 3,85 V. A battery at 3,7 to 3,75 V only has about 10 to 20 % energy remaining. That's usually not enough for a thermal runanway, hence igniting secondary fires. A battery at 3,8 to 3,85 V on the other hand has about 40 to 50 % energy left. Easily enough to have a complete meltdown and start of secondary fires. So staying below 3,8 V is definitely wise in terms of safety. I am storing my packs like that (3,75V) for years now. Never had any problems with shortened lifespan... :)

[@RcLifeOn]

Yeah, I could probably link a dozen different articles regarding the ideal storage voltage. However, 3,8V is probably good enough.

[@TheKaledonianz]

@@RcLifeOn Whilst I appreciate the ideal storage for long life, and maybe less risk of fire - but does the intensity of the fire really depend on the voltage? Is it not more to do with the amount of Lithium present?

[@t.seaverphotography9581]

Lining an ammo box with sheetrock is another option. Good to know about removing the seal!

[@user-uk3oe9lv6q]

Thank you so much! This video should be shown to all owners of e-bikes, e-scooters and other devices.

[@LargeeeScaleLife]

Ammo cans with a vented seal is what I’ve been using I actually think now I’m going to place them on a couple of fire bricks just for heat transfer. Amazing video absolutely stunning work

[@ubreakitirepairit3569]

A sheet of drywall will also work.

[@chrisrnz]

That Gens Ace 16A fire is terrifying! :-O

[@JRPW]

Wow thank you!!! This needs more views for sure.

[@RajuCam]

Thanks!

[@zero3nnafpv136]

Indeed, very well done. Should be one of the first things to look at before starting your RC Hobby.

[@jimmybonifacio6734]

THanks for the testing! I'm trying to figure out a metal filing cabinet lined with cement board since I have several big ebike batteries!

[@b0bl00i]

Awesome test, exactly the kind of testing I wanted to see for myself! Glad I have the ammobox without the seal.

[@JS-te4gz]

If one went you'd lose a lot of stuff in home to smoke

[@user-jr2ue9nu6y]

So what you saying there is no way a normal human can store Lipos safely other then a military grade ammo bunker?

[@lancelarymore1667]

Yeh thats right . There cheap and thete everywhere

[@ivok9846]

this was not "storing", every test had batteries with wires going to them. and probably amps too, a LOT OF AMPS! storing means "not using". now, do a test where it caughts fire while sitting on the shelf. good luck!

[@2muchofyou]

@@ivok9846 of course there's wires going to the batteries as its a worst case scenario and it shows that an ammo box with the seal removed is THE BEST BOX OUT THERE for the job. i left the front part of the seal so it still clipped tightly shut. your suggestion is to wait until a lipo burns? how many years you going to wait for that to happen? this guy deserves the thumbs up for doing all the hard work and cost of the tests while you criticize it because its over the top. well ill take over the top storage for these little house destroying batteries any day. and YES this is the ONLY safe way of storing lipos and YES you should have one at least if you run lipos.

[@TheHanutaXD]

@@ivok9846 I think it should just show the potential of what could happen. Maybe if a rat got in there and shorted one battery ^^. In every test there was always just one battery overcharged or shorted, the rest of the batteries got ignited by that starter one. You never know what could happen and spending some money to potentially save your house is worth it.

[@djwak59]

I just bought an ammo box for storage because everyone was saying that’s the way to go. Now I guess I’ll need a Fallout vault to put them in ! WTH ?

[@askill2142]

thanks for the test, it costs a lot of money but the prevention is clear !!!! worth it

[@pauljs75]

I wonder how well a retired oven (no longer used for cooking food) would work? Those aren't really made to hold pressure (which apparently you don't want anyways), but should be able to contain flames and heat. Would be interesting to see how old toaster and range ovens may fare. If viable, it might be something that could be had for cheap at some garage sales or perhaps curb-shopping.

[@mrblue2115]

Nice, glad I took the seal out of my LiPo ammo box right away, now I see that method works best.

[@jungblud59]

Now THIS is the kind of testing I wanted to see! I was already thinking about ammo cans for my ebike batteries. Now to see if I can find, or make ones that'll fit my 13S 8P packs inside. So far, my packs won't fit in the 30 & 50 cal cans. That's why I'll probably end up making my own by cutting the ends off some cans, and welding 1" extensions on, then rewelding the ends back on the cans. Excellent video! Thanks for posting!

[@TrisGarage]

Thank you for taking the time to test all of those scenarios. Excellent video.

[@RajuCam]

Thanks!

[@bilbobaggins9743]

I've got a 5000mah 3s in a bag similar to the first few. Should be fine! This was a good demonstration.

[@CorvusNumber6]

How about Lipo cells inside lipo bags, inside the ammo box without seals? Thanks for the video, great bunch of tests!

[@2muchofyou]

oh man they should make ammo box inserts out of that bag stuff or at least insulate the bottom of ammo box to stop heat transfer

[@jonbraid2520]

@@2muchofyou just put some fire plasterboard inside the ammo box

[@bradwilson76]

@@jonbraid2520 Or a layer of sand in the bottom works well too.

[@fragu123]

Of course - always follow the onion principle.... will get you the best results..

[@ZacharyPiercy]

@Mal - that’s basically what I have, one of the larger zipper-closed Lipo bags is rectangular and fits pretty perfectly into the ammo can.

[@RuudyL]

WOW a real eye opener, I have a ammo box and will remove the seal. My largest lipo is a 3S 3000mah but still bad if it goes wrong. I store my lipo's in the ammo box and in the bathroom, where there is nothing that can burn. Thanks again for doing this test for us, much appreciated

[@RajuCam]

Ruudy L, thanks!

[@MeesDeppe_Official]

I’ve got a 4S 10000mah lipo with a bad cell. Imma throw it out asap after seeing this 😂

[@Crownleyian]

Whats the Seal sorry for the stupid question, the lock?

[@handa2373]

@@Crownleyian a rubber ring that airseals the box

[@Crownleyian]

@@handa2373 thanks mate!

[@SYNFPVPILOT]

Excellent tests. Share everywhere.

[@swashbucklingadventures9929]

Awesome video!! Thanks for the effort and money spent showing the world the dangers and results! If that is firewood in the background you're using inside your house, might want to check for all that soot from the fires getting all over it!!!! That won't be healthy for ya brother! I'd be curious about using a good 'ole fashioned Weber Dome BBQ for one of these tests. Just open the top vent and should do great! Thanks again!

[@bs4199]

Great video thanks. I removed 3/4 of the seal and kept a small piece at the lock side otherwise the lock does not engage very well and the lid could blow open even in "locked" position.

[@PINACI]

I'd like to point out that Lipo batteries are mostly SAFE if balance stored in storage mode 3.8v and balance charged when charging. Most accidents come from over charging because people like to direct charge rather than balance charge their lipos. I personally use an AMMO can with a small hole drilled into the side which should let out any gas and smoke if a battery should decide to spontaneously combust and I use a metal tool box converted into a charging station when charging my batteries too which also has a small hole drilled into it which will allow any gas or smoke to escape if a battery was to explode. Try not to charge or store lipo batteries in your home especially if you have family... why should they burn to death because of your mistake !

[@ZEN43D]

Very interesting, why is balance charging safer than single direct charging?

[@PINACI]

@@ZEN43D If someone charges directly without balancing and one or two cells have more charge in them than the others do when charging, the charger will try to charge the lowest voltage cells which will in turn over charge the other cells with a higher voltage leading to an explosion.

[@ZEN43D]

@@PINACI ok thank you, ive got a lot of reading to do before i fully understand. I've just ordered a SkyRC Q200 which seems like a decent charger that will hopefully stop me burning the house down! Thank you for the information.

[@PINACI]

@@ZEN43D I charge my lipos inside a metal tool box with a hole in the side to allow the leads to go in. This is the safest way to charge Lipo batteries and charge them outside if you can. Don't bother using those cheap lipo safe bags cos in my experience they are not good enough and fail more often that not. I store my Lipos in an ammunition box and charge them in a metal box. Emphasis on better safe than sorry.

[@PINACI]

@ace Anywhere between 250 to 500 charging cycles depending on how well you look after them.

[@willitsguy]

It amazes me how little is known by the general public about Li-ion battery safety. The industry has done a real dis-service to everyone by not better educating the public. No doubt because their lawyers advise them to never appear to show knowledge of a danger. These examples are time elapsed. In the first example in this video, there’s a lot of smoke very quickly, but the flames are suppressed. This is what the battery safe bag is designed to do- to VENT gasses, while controlling or containing fire. There is an initial period (time elapsed video) of time, when the smoking battery bag can be ejected from a vehicle, taken outside, or whatever. Without the battery bag, you have little chance to contain or control a Li-ion battery fire. And virtually NO CHANCE with or without a battery bag to extinguish a Li-ion battery fire, because it’s actually a chemical reaction that is creating its own oxygen. No A, B, C, or D fire extinguisher will put it out. Water won’t either, but it may make the fire worse. Store and charge Li-ion batteries inside of fire and explosion proof battery bags. Understand their capability, how to use them, and what to do if you experience a battery fire.

[@exjehooberdubexpiobeezleeb6269]

This is so true. And especially with more and more people riding ebikes with li-on batteries (many marketed to families with small children) oblivious to the potential dangers..

[@draken1331]

Excellent tests. Thanks for sharing. I just want to pass on a safety tip. DO NOT use water to extinguish LiPO fires. Lithium can react with water and make the fire worse or even cause an explosive reaction. Lithium, like Sodium and Potassium is an alkaline metal which reacts violently with water. Most of the Lithium was likely burned off here so it wasn't an issue. Only use a proper fire extinguisher or oxygen suppression if possible, but NEVER use water.

[@swashbucklingadventures9929]

draken1331 Interesting information! As I began doing research on the safety of these batteries and have two brand new,still in the box 3S lipos @5000 mah batteries, I decided to go to 2 local fire stations and have a word with the guys that would be the ones coming to my rescue or at least give me some good pointers. Well, much to my dismay, the first station referred me to another station (the main one apparently ) and the second one said, and I quote " if we show up don't worry because we'd just dump copious amounts of water on everything ". I asked and SHOWED him a video of a guy on YT using something as simple as an old fashioned red tool box, drywall on the insides and a bag full of sand on top and his response was was "oh ok". At this point I'm leaning towards the red tool box with sand. With the bat a close second.

[@rogertbutler5581]

I really appreciate you going to this trouble. Have you considered testing a container with an amount of water in the base and and a plastic layer above that will give way if the battery burns ? Thus dropping the battery into water. Sand can do so much but the specific heat capacity of water is so high I feel it would do a lot to contain the fire and any charging wires would just short circuit and trip the supply. Just a thought. It could be a marketable product.

[@Mr.T711]

Thanks for taking the time to make this informative video.

[@TheGigaflop]

Wow, this was really informative. I don't have ammo box, have the lipo bags, but I'm thinking I'm going to move them to the fireplace rather than store in basement. Yeesh, that was terrifying.

[@wordreet]

Excellent video dude! I recently bought an old electric oven just as storage for Lipos I'm not using. I think I'll have to bring it into service for charging from now on!!!!!

[@Dav2112]

That's scary, my dad just checked his bag of Li-Po packs and several of them have puffed up, he said that he kept them at storage voltage but I honestly think he left them all fully charged for over a year and that's why they've puffed, I'm glad he checked them when he did because things could have turned nasty if he just left them.

[@Buckshotshoey00]

A test with a small, fire proof safe would be interesting. Like the small Sentury safe you can get at Wal-Mart for $40 bucks.

[@Megabigfox]

Thank you for showing making this video!

[@FPVmarko]

great work. one of the best lipo fire test video i've seen!

[@leon130384]

great vid, what were u doing to the lipos to set them off? shorting them? another test with a closed but unsealed ammo tin on a concrete slab would be a good one. i appreciate the time, effort and money used for this vid, THANKYOU!!!

[@RajuCam]

Thanks! The batteries were set off by overcharging them.

[@renaldolama9517]

Thank you for doing this. I need this information.

[@levitezer]

Excellent test, thanks for sharing, must remove the seals from the ammo box

[@rogertycholiz2218]

Good old ammo boxes. Don't have to get rid of seals-they just burn off. You probably wont be using them againfor storing ammo in waterproof storage.

[@NeCtRiCkS]

But having it sealed may cause open flames or even explosion, as stated in the video (9:03 mark).

[@HexcamCoUk1]

Thank you. Very informative.

[@TDubsKid]

what if you put the batteries in a lipo safe bag then in an ammo box inside and ammo box inside of a fire place with metal doors?

[@TheKaledonianz]

Aye, well, better still, ask NASA to charge them on their next moon landing!

[@Chumbuucket]

Thank you so much for performing these tests!

[@omnianti0]

the sandbag experience failed because most of the sand was ejected but seem a very interesting solution that prevent chain reaction so i sugest to fill a second ammo box and seal it with foam then close the first ammo box with the second reversed both linked with metal strap so when the flame destroy the foam the sand is releaed on the battery and will prevent further chain reaction by sinking the heat due to contuctive thermal proprety obivously the amount requiered seem to be 6 time the volume of each battery

[@franzfuls610]

thank you. best lipo fire testing ever

[@G56AG]

Answers some questions I had, test seems to be very well done.

[@christianferrazgruner]

Could you also try a sealed ammo with holes drilled in the top? On your closed ammo box without the sealed, the flames are nicely contained, but it seems the very hot fumes are sodding the floor, This could be avoided by drilling holes (but not too many) in the lid, I would assume. this way it would channeled upwards, and not down. Very nice test! That 6s 16000 was scary! Please try 1-2 of those in an ammo-box like I suggested above!

[@oidantheman]

Exactly what I was going to suggest after watching the vid. Please try this.

[@RajuCam]

We will try to conduct this test, thanks.

[@maverick-productionsvideos7661]

Yep, agree with wizprod, if it comes to be better than with the seal removed, we could even use a hole to put wires through it, this would allow the batteries to be charged IN the Ammo-box, so not only storage but also charge could happen safely. Thank you for this really helpful video, the whole world needs to see this, as Lithium is in every single electronic devices we use ! :)

[@tylerjackson4168]

I keep a few doze 5000mah 3s and a few dozen 1s and 2s on my desk by my bed. all in storage charge. doesn't worry me a bit. I have a good charger and when I use them I keep an eye on them, when they puff, stop using them. simple. I have had a couple vent in a RC but managed to get them out with no damage to RC. point is, buy quality charger, keep an eye on them when charging for example you could have selected wrong parameters on charger. care for lipos and they last several years and thousands of cycles.

[@wordreet]

I agree about caring for your Lipos, but for Pete's sake store 'em in metal boxes.

[@notafraid06]

Thanks so much for the video and all the hard work. Like many others i have numerous lipos in a single ammo box. I will be removing the rubber seal and storing the ammo box outside. I am assuming however that these batteries don't typically just go off on their own and the real concern comes when you're charging them. Thanks again

[@sadcrab_5349]

I had a 3s 25c 5000mah blow up on me once, it was in storage. They can go off at anytime, but charging is by far more dangerous.

[@swashbucklingadventures9929]

Noah Fiegel Did you have it at 50% storage charge as recommended?

[@misspiggyyy1974]

Removing the seal from my 50cal box as i type. Thanks.

[@redbull2007]

This video test is jusst brilliant, i encourge you to do one more test even with just one 6s lipo to check the bat safe product. i am really curious if it can handle lipo fire.

[@AxelWerner]

That LiPo safety bag seems to be ideal to start a fire for your next BBQ.

[@jrbaeronz9840]

How about a couple of 1lb bags of baking soda (as with a dry powder extinguisher) on top of battery with the lid closed and seal removed, might give enough time to get it outside safely before it re-ignites. Use a battery temp cut-off probe on your charger if it has one and set it to a low setting (I use 20deg C ) to avoid overheating if charging at a high rate. I always balance charge my batteries at a max of 1.5A . Biggest batteries I use are only 3000ma 5s 40c, takes a while but I have batteries which are 8yrs old and still balance well but just have no go, (still useful for low drain testing applications) If anything puffs or drops a cell it's discharged and put aside for safety and if it's too bad, has the garden rake put through it just to be sure it's dead before disposal. There have been a number of rubbish truck fires from people throwing out lipos with power still in cells, as when the ram in the truck compacts the rubbish it can crush a lipo setting it off. Be patient with charging, double check charger settings and check the individual cell voltages while charging and you should stay safe. Have some ice packs in a small chilly bin at the field so if your battery should puff slightly after a run put the battery between them straight away and it will help to reduce the puffing (check battery when charging, if it puffs again, chuck it). I put mine in the freezer for a while at home if any get too warm, even freezing doesn't seem to hurt them and they seem to charge better when cold. Use battery voltage alarms in your models and set them above minimum voltage/cell so you have time to reduce throttle and return safely.

[@lucmorigo8443]

Thank you for this great video

[@jonbraid2520]

Wow eye opener! Thanks for making this!

[@charleswatts1864]

Ty for testing these and making the video!

[@alcurtis93]

55wh on the first one. My bike has 400wh. I don't think you could contain that in a house safely which makes storing my bike in my one bed apartment worrying to say the least

[@offensivememez-km3mm]

maybe a oven if you have one? You won't be able to use it after a battery fails though

[@birdbone3dprinted194]

Nice work on this - very helpful - thanks.

[@davidgaleski5303]

thank you for eye opener

[@anned8634]

I use an ammo box with 1-inch holes drilled down the side and I cover the holes with a fine mesh stainless screen and use a plate with matching the holes bolted on to hold the screen in place. This allows the gasses to vent without the flame leaving the box I also match the box with the size of the batteries. never fill the box more then 1/3 full. For large Ebike batteries, a 20 mm ammo box or 81 mm mortar box should be used. And the boxes should be set on cement board as they will get very hot.

[@AxelWerner]

Would love to know how a "locker" (free standing sheet metal closet) with venting holes at bottom and top behaves! Or some contraption build from "dry wall" with thermo insolating air gaps below and to the sides

[@sunrae3971]

Nice Test Setting! thanks

[@khangweak]

I can feel my entire pocket money for rc plane hobby flashing before my eyes (-o-) while wacthing this

[@oliverbernasconi4595]

Best test video so far. Thanks for sharing! Got me to use Option #4. But i will put the box (standing outside on my terrace anyway) on a stone plate to avoid floor damage.

[@RajuCam]

Thanks!

[@thomasmast1391]

The Bat-Safe will work, it will prevent open flames and filter the soot out of the smoke.

[@shawncell1247]

wow well done ,thank you for sharing

[@redbull2007]

you video is superb real want to see these test footage with the new bat -safe to see how its handle.

[@julianuk3266]

Great video's. I store two LiPo's. One 3S 6500mAh and one 2S 5200mAh at 3.85v. Currently both are in a lipo bag inside an ammo box. However the ammo box is watertight, so i guess i need to be drilling some vent holes to vent the fumes or remove the airtight seal. Probably not a bad idea to buy another ammo box and another lipo bag, to keep them separate. However, its all the smoke that concerns me. I'm wondering if i should store those ammo boxes outside somewhere, instead of inside the home. Surely that would cause some serious smoke damage to one's home. Enough that you'd never get rid of the smell and well, end up with a huge problem on your hands. Storing outside though, that could cause some extreme temps being exposed to the elements. Especially if you live in the tropics like i do ! ugh can't win eitherway !

[@danielrc3658]

Julian UK I would store them outside.

[@Mike_Studmuffin]

Would a depleted or partially discharged battery cause less explosion?

[@MarkKunoff]

I realize this is an old video, but how did you trigger each event? Did you just create a simple short circuit between negative and positive?

[@Pip2andahalf]

OP replied somewhere to this same Q- triggered by overcharging

[@mamneo2]

Great video!

[@chrgeo8342]

Fantastic video! how come an ammunition box that is supposed to protect from ammunition explosion, needs venting when a lipo battery catches fire ? Isn't it supposed to contain the fire without exploding ?

[@AquaTech225]

Ammo can. Batteries. And one of them exploding fire extinguisher balls. That pop and releases all the dry chemical

[@johny528]

Very courageous extinguish the fire from Li-Pol batteries with regular water.. okey after 30min.. but I really don't want to see bigger chemical reaction. (like if you add water into fire from oil on pan). After all, thanks for this video.

[@DoenerBudeFTW]

Thank you very much. very good video

[@guraski]

would like to see ammobox, lid closed seal removed in a closed space

[@tommybronze3451]

Awesome, and gives perspective !

[@Mallysh]

Please do a test 6 V3: a smaler sandbag in ammobox. Max50%battery rest sandbag. In a way that you can close the lid, no seal and smal hole for cables. Thats how i do it. In your tests the sand was blown out because of the open lid! Anyway good video! Ad some sounds!

[@Quatuux]

You need to try the sealed ammo box but with holes punctured on the top.

[@JohnDoe-le8fy]

Cinderblocks stacked into a large box for containment.

[@thetruthfulone73]

So what the conclusion what's the best way to charge or store lipos?

[@rust8663]

so i need to get a separate lipo bag for every battery larger than 3000mah?

[@cooloutac]

I bought a 81mm ammo can for my 48v 15ah ebike battery. Do you think I need to also drill some vent holes in the top? Or should just removing the seal and making a wire port be sufficient?

[@GarysYouTubeChannel]

Sooo safeest bet would be to put batteries in fireproof bag then stuff them into the ammo box and throw a bag of sand on top before charging. Got it! (:

[@we4fm175]

Nice video with good information. I have ammo boxes where I removed the side rubber seals but left the front and back seals in place. Anyone know if that gives enough room for gasses and pressure to escape?

[@Lion585.]

how much damage will happen with 2s 550-750mah?

[@MikkoRantalainen]

1:52 It seems that little bag was a bit too little for that 6S battery!

[@sgoulet3333]

thank you very much for doing this. Public saftey annoucement here!

[@matusknives]

Maybe a naive question - would it make sense (in the case when there are several batteries in one ammo box) to pack each battery in such a LiPo bag?

[@chrisdejager791]

Wow that is incredible

[@humusiclab8974]

So is it better to have 1 battery per bag? Also, when charging use the bag (it's only one battery inside) inside of a closed, seal-less ammo case?

[@chrisfell2621]

Thanks for the video.

[@tito9107]

Lipo bag: I reduce damage The damage:

[@rex1030]

It may not be convenient, but the sand option made me wonder if simply storing the batteries in an unsealed ammo box filled with sand would be the safest route.

[@JustifyJustin]

How about ammo box + sand on floor + batteries in lipo bag + large lipo bag filled with sand ontop of batteries on the inside, lid closed but no seal?