Is Your LiPo Safe To Charge | WHEN TO THROW IT OUT

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This might be the most important video I've ever made. Because if you mis-treat your LiPo batteries, they can turn on you, and literally burn your house down. So you have to learn the warning signs of when to throw out a lipo.
Is your LiPo safe to charge? If you watch this video, you'll know the answer.
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КОМЕНТАРІ: 757

@apaxman00 5 років тому

"OH NO! That's a 6 cell!!" LMAO!! 🤣😂🤣 Your entertainment value alone is worth the patrion... The extra knowledge is just a bonus!

@salvatoregrillo1227 4 роки тому

omg I'm crying at my desk trying to learn about lipos. What a moment

@chrisrb7876 2 роки тому

Lmao. As soon as he plugged it in it looked like Jesus just walked in Joshua’s room lol.

@kskmain 3 роки тому

I really want more of these lipo safety contents. I just got into this fascinating hobby but since I started flying quads I can't stop feeling anxious about fire issues.

@crudboy12 5 років тому

I left a 3s plugged in when I was just getting into RC. It was dead as a doorknob the next day. I used NiMh mode to restore it and it seemed to work fine for a little while. (Being used for a hovercraft) I was charging it while watching a youtube video of someone turning a pancake on a lathe and I heard a loud thud and turned over to see several feet of red orange flame coming out of my dresser drawer. I dumped out the contents of the drawer and wrapped them up in a rug to stop the fire, this did not work and the lipo ate it's way through the rug and damaged the floor. (dorm) When it finally stopped burning there was nothing left but some bits of what looked like copper foil, a very destroyed rug, and one unhappy roommate.

@JoshuaBardwell 5 років тому

This is why I don't suggest "recovering" dead LiPo :-) Thanks for sharing this example.

@arjunmelwani4788 5 років тому

Lol u hang the battery to kill it

@GearheadENG 5 років тому

Hung in the closet for a slow and painful death... He had a lot of energy in life and will be sorely missed. He tried lithium treatment and shock therapy for his depression but in the end, it only left him with a damaged brain cell

@Forzaplayer 4 роки тому

Just like Epstein

@XZLR8N 5 років тому

JB: "Don't roll the dice on lipos" (Rolls dice in closet)

@heroflying 5 років тому

Honestly, that did actually baffle me. I would in that Le Drib battery still use it, just with precautions well before I'd discharge it inside the closet like that with no fire prevention like a lipo bag. lol

@fpvwing 5 років тому

Bash with hammer. Return to Drew for giggles.

@lukagroot7409 5 років тому

@@fpvwing I've heard of a guy, I cant remember who but he took his retired lipos into the desert and would do target practise on them ;p the lipo exploding is a nice hitmarker

@sunshynff 4 роки тому

@@lukagroot7409- I've done that a few times, my buddy has property out in the sticks where he hunts and goes 4-wheeling. We'll gather up all our bad lipos and head out there with our rifles, it's actually more fun shooting them with just a little .22cal round, does just enough damage that come apart pretty violently, bigger calibers sometimes just blow them apart before chemical reaction can start.

@taattataattataattata 4 роки тому

I got a bucket of saltwater

@Mr748Dave 5 років тому

Joshua, Another great video! This should be a must-watch-video for all newcomers to FPV! Thank you!

@skyfoxfpvulpine 5 років тому

As always, thanks for the very useful nuggets of knowledge! This is something i've been very curious about for a while and you've answered all of my questions.

@NaClSandwich 5 років тому

Thanks man, this was a really informative video, Love the infrared at the end.

@WarChest 5 років тому

I love your lipo / current / charging explanation series. I always get something out of it that I didn’t know before.

@kidcreamola 5 років тому

Thanks for the vids. I watch your channel loads. This was exactly the vid I was looking for. I'm new to the hobby and have started charging battery's outside because I wasn't so sure. Now I know. I have definatly learnt something today.

@NukeFPV 5 років тому

Thanks so much for this Joshua, especially for us Newbie's, we need to learn these things. And old pro's need a healthy reminder too :)

@msky33 Рік тому

I always enjoy your videos. You seem to do quite well explaining things in logical term. I think you have something I lack but I’m learning which is patience! Lol. Thanks again ✌️

@MaddMaxx_MaddMaxx 4 роки тому

Thanks so much for making this video! I have 2 Tattu 4s 1300/1550 that both lost a cell around the same time. I was curious as to how to dispose of them properly, love your videos man, great content and information!

@robwaters3080 5 років тому

Thanks for the video Josh, this is one of the portions of the hobby that I've always been a bit worried about... and my wife is always pretty freaked out about.

@m4st4Xk1ll4h 5 років тому

This was so helpful you can get lots of info on how to charge but there's not much for looking for signs of a bad cell or a pack. Great video thanks J.B

@anashbear2608 5 років тому

This vid is just what I needed! Thanks! From total fresh start beginner!

@renotimberwolf2139 5 років тому

Great video! Ordered the battery checker from your link!

@FPVExchange 5 років тому

Excellent lipo discharging product!! I picked the wirewound resister from the link below to get rid of about 5-6 batteries that I had set aside to discard. Worked like a champ, even for my RC 5000 mah battery. Cheap piece of mind while I keep my batteries inside for the winter!

@bruin1980 3 роки тому

I have been charging lipos in parallel for years and there was a lot I learned from this video. Thank you.

@flyineyeaerialfpv5592 3 роки тому

Thanks. Nicked a section of a balance plug. I figured it was simple like you showed but I had to watch the man himself say " your going to learn something today" and show me the method before I was confident enough to change the little balance connector. Nice explanation as always. God Bless you and your family brother

@friendlyfire01 5 років тому

I'm glad you spoke about taking calls out to make a smaller battery. Yes, it can be done, and pretty easily at that. I suggest using snips to disconnect the POS and neg of the bad cells instead of desoldering anything. Then solder the leads back properly and cut the balance lead to the new size.

@PlainVlogs 5 років тому

Perfect timing for this video mate

@ron2298 7 місяців тому

just wanted to thank you for all your videos it has been a long time since I messed with lipos and this info is priceless Thanks again. Do you have any batts you recommend ?

@danreynolds8028 5 років тому

Great video and very informative as always, Joshua. I'm new to RC and I was waiting for you to tell us the best way to DISPOSE of a bad battery. I'd be a little apprehensive to just toss in it the trash and hope it doesn't catch the garbage can (or garbage truck!) on fire... Subscribed!

@jrayfpv4963 5 років тому

Wow! I wish you made this video a long time ago!!! Very useful and informative. Thank you for the great information! 😂

@timothyciarlette8250 5 років тому

Thank you for stressing safety in this great hobby.

@jeffrenman4146 Рік тому

you have nice equipment and you seem intelligent you been around and done this before and it shows so I must say thank you very much I paid close attention to what you are saying. Thanks for being out here you're one heck of a nice guy.

@manuelpellizzari8540 5 років тому

Thanks for the reminder, it's never too much. You mention spontaneous fire but I'm not sure there are too many of those. I believe most of the time it's during charge or discharge. The main source of fire is obviously crashes, and for me the close second is pulling hard on a tired lipo : you land and one of the cell is puffed and smelly. As mentioned in another post some chargers have temperature probes and I find a 5eur smoke detector next to the batteries reassuring also.

@Jonathan-rb1iq 2 роки тому

Thank you for your good sharing. It is crucial to beginners like me. 👍🏻👍🏻👍🏻

@mathieusan 2 роки тому

Thank you for making that video

@pauleshelman5862 2 роки тому

Brilliant! thank you sir.

@ViperFPV 5 років тому

Nice tip on the parallel charging. I use your boards exclusively. I noticed it was having a hard time balancing at the end . Taking a lot longer than normal so I shut it off and yeah I had a bad cell

@topcatgc1 5 років тому

Thnx JB have about 3 suspect batteries I need to check, great reminder

@g.bjumpsbashing3062 3 роки тому

Great vid bro. Thanks👑

@earlhelm515 5 років тому

Great advice - Thank you.....

@haroldseaman4243 2 роки тому

I'm a noob and Mr. Bardwell is Outstanding!!!! I've been able to progress with confidence and watching his video makes me want to learn more about the hobby!!!!

@jjjjrrr678 4 роки тому

Good video man, thanks!

@FerociousSniper 2 роки тому

Thank you so much for the info! Also, I definitely understand what you mean about not taking any risks. I have a $350 crawler, with almost $450 in upgrades. I'll throw out a $40 battery before risking burning up $800 worth of rc car.

@doktordrone 4 роки тому

Thank you very much, JB 🙏🙏👍❤️

@HellaCopter 5 років тому

Always teaching us we thank you JB ! All of us!

@ross.newman2716 4 роки тому

Thanks for the info Josh...👌🏾

@blackconduit_fpv7099 5 років тому

Great info JB thank you!✌🙏👍

@redberlingo 5 років тому

Love the infra red image at the end...

@TrentTationnaiseXization 3 роки тому

Just had a 1st hand experience with that thumbnail. Got my first FPV setup and no simulator prepared me for this... The bms lead got sucked into my ducted frame and diced up, broke a wall piece, dinged my prop, and punctured a cell! There was definately a fire. 🔥

@Timsfpvshow 5 років тому

thanks for this video bud. i was needing this information right now.lol you might have saved my house

@MrHristoB 3 роки тому

Good points Joshua. Due to the Irish weather, my batteries are most of the time on storage charge :-) and in tin biscuit boxes lined with baking paper and stored in 50x50x50cm floor tiles box in my garage. When we're going away in the summer, I'd clean up the stove and shove them all there for a piece of mind

@jknewb6276 3 роки тому

Awesome info thank you!

@GeorgeCooper_LoneWolf 5 років тому

Great bit of info JB, lets just hope people listen. I cut the power cables of ( ONE AT A TIME ) Then leave them outside for 2 weeks in a bucket of Sault water ( Heavy on the Sault )

@ibfisher 5 років тому

Excellent safety info, for sure, thanks! Makes me wonder about Lipo storage options in our homes. Do you keep yours in a fire proof safe? In the bird house down the driveway? You know the one we all smack into in Lift-off?

@chasewalker3924 2 роки тому

Just got into FPV a month or so ago and have learned so much from your videos!!! I knew lipos had a risk of fire so the first thing I bought was a fireproof battery bag. This video also included very informative information and I checking all of my packs tomorrow. Thank you so much!

@MatMabee Рік тому

Those bags do nothing. use a 12x8 and a 13x9 glass baking dish leaving room for ventilation. Contains the fire and heat without expelling anything.

@BigAlFPV17 5 років тому

Great informative video Joshua!!

@elmattbo2540 4 роки тому

Glad you mentioned the parallel charge problem because that's the real risk with a bad cell!

@matk4731 5 років тому

Great video mate👍🏻

@anthonyparker6046 4 роки тому

Cool, Thx for the video.

@nickmcmahon1458 3 роки тому

I crashed 2 years ago and broke something in my quad and never got around to fixing it. My 3 tattu 4s battery’s sat for the last 2+ years. Two were plugged into a parallel charging board and one by itself. I just bought a diatone f5 after seeing JBs review and tried to charge the batteries up. The one sitting solo was fine at 3.7v per cell. The two in the parallel charging board had two cells at 3.7 and 2 cells at 0... I tried to revive one and it was drained the next day. Glad I saw this video today and they will be going to the great battery place in the sky.

@johnvodopija1743 3 роки тому

I learned something today. Wasn’t awRe of the risk of damaging all batteries connected to a parallel charge board if one battery is bad. Thank you 👍😎🇦🇺

@Nodstar73 5 років тому

Many thanks, from a newbie.

@Stygmah 3 роки тому

OH NO THAT'S A SIX CELL! watching this at 1.5 speed was hilarious, but its the only way to watch JB talking videos.. love you JB

@rilosvideos877 9 місяців тому

This is a good and important topic. About the lowest discharge voltage that is still safe i am not sure if 3.0V is a problem, esp. when loaded. At a high load a voltage of 3 V isn't a problem imho but with no load its the end. Most cells are fine until 2.5V (normal 18650 li-ion) but 3.0 V is safer. LiPos are much more dangerous esp. with high C ratings and energy density.

@Dmiles 3 роки тому

Thank you!

@LazerLord10 3 роки тому

Rolled the dice on a CHL 4S that got discharged when I got stuck in a tree. I recovered it, and it held storage within 50mV over the course of 8 months.

@dirtrider88 Рік тому

what a nightmare, getting a drone that turned on (obviously) stuck somewhere you cant get to

@NitroStarGT 5 років тому

Good info. Thanks

@Lorduss1 5 років тому

back in the first years of lipo I remember how many homes and cars were burning down from them, it was way more common than most now realize, I have been in this hobby a long time.

@jasonpan4 5 років тому

Thanks Joshua!! Very informative video!! For new and old people in this hobby!! We kinda forget how dangerous a lipo is...

@richardmiller9752 Рік тому

best clip. good job Undersheriff Richard Miler, Michign

@jameshankssr466 2 роки тому

Finally a video that tells you throw it out and not do something stupid like trying to fix it! The price of a battery is not worth a fire period

@GosHawkFPV 5 років тому

Ok I'm at work and freaking out now "gotta check those lipos"

@adrianf5665 4 роки тому

naughty naughty watching videos at work.... tut tut tut

@vincentrobinette1507 4 роки тому

If you are discharging a damaged battery, I would recommend discharging through the voltage balancing terminals. Discharging through that low impedance resistor is dangerous, because the weakest cell can be reverse charged by the stronger cells. That GREATLY increases the chances of a conflagration in that cell, which will light all the rest of them. An individual resistor between each of the balancing leads will guarantee that all the cells fully discharge, without reverse charging the cell(s) that's bad. you want to give each cell its own resistor. some cells will take longer to discharge. If that's a .5 Ohm resistor, a 4 s battery will put ~28 amps through it. You don't want to use a value that low, if the battery has a weak cell. The cell will have almost that much resistance, and will surely heat up. It would be better to use 5, or even 10 Ohms or more, to discharge over a longer period of time, to avoid heating weak cells. 1 to 2 Ohms would be appropriate, for discharging individual cells, using the balancing leads. That's definitely the safer way to discharge a battery for disposal.

@aaaaaaaaaassssssssdf 5 років тому

a friend left a 5s pack at the bottom of a river for a day (long story) and i recharged it just for kicks, what i learned is you can't tell when modern packs are starting to puff because of the aluminum/composite plate they put on them now, if you cut the heatshrink you can tell if they are puffed a lot easier. good points about checking to see if one starts self-discharging and testing internal resistance. also i can't think of who made the video but i'm considering making a portable battery charging box out of a small metal tool box just to contain things

@XZLR8N 5 років тому

Joshua...please...I can not sleep at night...GET THAT THING OUT OF THAT CLOSET!

@chiefshalot2986 4 роки тому

What about if it's in a lipo bag,, well I'd say it still cause a fire what a metal bullet box? What's safe nowhere really outside burried

@crazyrc4610 2 роки тому

My lipo is on my table next to my bed 👀

@EgonFreeman 3 роки тому

As for discharging, I have a little discharger I put together from a repurposed PC power supply case (sinks a lot of heat if need be), two 22Ω power resistors (with a switch to hook up one, or both in parallel for 11Ω), a small self-powered voltmeter, and a CPU fan on top. A 3S gets a discharge current of about 1A, which tends to be below 1C of what I'm usually using (1.5~2.8 Ah), and guarantees that the discharge rate won't be too high to safely discharge even damaged packs. Though with properly damaged cells (if, say, I get 3.8V, 0.7V, 3.9V on my readout), I still tend to split them and discharge separately (a necessity if any cell is damaged beyond conduction, as has happened). The voltmeter is really only there so that I can get "at a glance" situation awareness -- if it's off/dead, it's below 2.3V (the bare minimum to work it); otherwise, I get a reading that's accurate to about ±0.15V (yeah, yeah, the accuracy of meters powered by the very thing they're measuring tends not to be all that great).

@StonyRC 3 роки тому

VERY wise advice for radiomodellers. Damn good video!

@paulmillard1130 3 роки тому

Good video !

@N1NJAKIDD 6 місяців тому

Thanks for this info, I ended up buying the same wirewound resistor which is 2ohm and 100w. Used it to kill my heavily damaged 4s Turnigy graphene lipo. Resistor gets crazy hot😂

@MrJarrod 5 років тому

great advice JB I have a questionable battery decided to retire it. because of this video.

@redwine3437 4 роки тому

Thanks

@SpicyFPV 5 років тому

I use a 12V 20W Landscaping light bulb wired to an XT60. Toss the light and battery in an ammo box that has some vent holes and just leave it outside on a gravel pit. Took a near full charge 4S battery with a crap cell (ie 4.18v/4.17v/4.19v/3.64v) down in about 30min. I usually gator clip the leads as a direct short after the light has been off for 5min or so. Claim the balance/XT60 connectors, solder the leads together, trashcan. When you mention some cells being lower than others, but not horribly lower, I would have to say that is almost present in all of my batteries. Even those that are close to brand new. (I am pretty OCD about only charging to 4.2, only flying them down to 3.7, and always bringing them back to 3.8-3.85 within a few hours of flying. A lot of my packs when charged up for whatever reason will show 4.2/4.2/4.2/4.18..

@JoshWeaverRC 5 років тому

I think very important in addition to going lower than 3 is a brand new battery having a single cell drop below 3 on the first run. If there ain't a good reason, it probably ain't a good battery and will only get worse. Cells that just don't want to charge, stop, check the resistance, probably retire it. Going to insulate my batteries this winter, even in flight.

@patsjoholm 5 років тому

Nice info, especially that 2 ohm resistor, a bargain at $8 and change...placed into cart for next Amazon order:)

@RCFlyer85 5 років тому

I just ordered one and there was only seven or eight left so you might want to just place the order

@Rowrin Рік тому

Whenever I replace laptop batteries for friends/family, the sketchy cells/pack goes into a spare ammo can until I can make the trip to a recycling center. 30 cal ammo cans, new or surplus are typically only a few bucks. Could spread good batteries across a few cans to mitigate loss if one goes supernova and dump sketchy cells into a dedicated 30 or 50 cal can.

@hateeternalmaver 5 років тому

That's a cool topic, I see this question ("Is it still safe to use?") on Reddit all the time. Everytime I'm thinking to myself 'if you've got to ask, it's probably not...' ,D

@mohammedawad6806 4 роки тому

Hi, i apriciate it how a hobby can be very nice & happy, without burning-hous! Also to make a 4 cel to a 3 or 2 cel, can damage your battery, if burning house not convince enough..lol..serious, thank you, i learned about Lipo what i need, to stay save & enjoy this hobby ! °♧° Keep doing the good job..great day & happy save flights ..:))

@sumukhas5418 2 роки тому

I was searching for this video for a very long time finally found it 👌 PS: I was sure JB would have made one

@remkojerphanion4686 4 роки тому

To discharge my 6s 8000mAh batteries relatively quickly, I use 3 auto headlights (old style duplo) in series, but only to a safe level of around 3.7 - 3.8V per cell, before storage charging back to 3.85V. Before discarding a battery, I discharge using the headlights to cell charge of around 3.2V, and from that point on, I use my (dis)charger with a set current of 0.5A till the battery is completely at 0V. Yes, it takes a long time, but safety first.

@DoRC 5 років тому

You missed one of the biggest signs of impending failure which is puffing. In industry offgas detectors are used as an early warning sign of failure and anytime a battery stays puffed its a sign of damage.

@RalfIamrighttherewithyoubrothe 5 років тому

Those are cool little gadgets that you got going on there I have nothing but some 2s batteries and a wall charger don't know what else I need.

@sklobi Рік тому

This and your “65 FPV Tricks” video are over a year apart, yet you looked the exact same in each video… same shirt. Haircut. Clean shaven. Same weight. Same everything! Your an ICON in this community, good sir, and we thank u!

@gorace71 5 років тому

Thanks jb. This has been a public service message

@konzeptzwei 2 роки тому

great video! thanks for that…at the end i am a bit confused though. so why shouldn't we discharge a damaged battery it with the charger?

@MrVasmikey 3 роки тому

My flying buddy bought me an old Army surplus ammo can. He put some wholes in the top. I keep my Lipos inside at all times.

@leviteight2865 5 років тому

This subject is underrated. You can't fix stupid. Thanks JB

@bjornkullberg3793 4 роки тому

Nice video! One Way, i learned ,of disharge à battery permanently is to put it in a bucket of salt water for a week. After That it Will be totaly safe to recycle(not through it in the garbage).

@KTHKUHNKK 6 місяців тому

Excellent excellent video let's stay safe

@miker3174 5 років тому

Keep a couple of those cheap aerosol looking can fire extinguishers with your batteries. If there is a fire the plastic valve will melt and set off extinguisher. Also keep a good one next to them for just in case you are there as well! One of those battery analyzers is good for discharging too and you can keep the data from it to compare batts performance over its life.

@flipcrash8537 5 років тому

I'm one who splits my batteries and removes the bad cells. Never had an issue doing that. I appreciate the fact you didn't discredit that practice. These are good practices, I use them on all my packs, especially my rebuilt ones. Though they tend to be the best batteries i have bc I match the cells

@flipcrash8537 5 років тому

Just to clarify, I do think you are being a bit more cautious than necessary. Nothing wrong with that. In an academic setting, it's very good.

@JoshuaBardwell 5 років тому

It's beyond many people's capability to safely deal with bare lipo cells.

@flipcrash8537 5 років тому

@@JoshuaBardwell I would agree that it is beyond many individuals' current skill level.. Soldering at all was beyond my capability a year ago. With training and practice, I think anyone who can solder can learn to safely rebuild a battery.

@scottmarshall6766 5 років тому

Good.

@powersv2 5 місяців тому

I think a post session battery inspection checklist.

@mazyarahmadi5424 2 роки тому

Great video and I go as always. I just crashed and my battery looks banged up, but the cells are all balanced, and the resistance is no different than other batteries. The other battery resistance ranged between 9 and 2, and this banged up one is 3-8 range. Looks like I’m ok?!

@DoRC 5 років тому

Saying youd never leave that discharge setup unattended is an example of good intentions. If there were a valid enough distraction (emergency etc) it would be easy for anyone to forget what they were doing. Since it would be trivially simple to just bring the resistor outside why take the chance? The cells youre discharging are already condemned as faulty. Seems like a bad idea to give them their final discharge in the very place youre trying to protect.

@thomasmiller6712 4 роки тому

Best way to discharge a lipo is to throw it in a burning fire pit for a few hours. No?

@sunshynff 4 роки тому

@@thomasmiller6712 No

@nickdeadman4942 4 роки тому

He said he leaves it hanging there over night in the video