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Why Phones Catch on Fire While Charging


Hi there. Cell phones certainly make our lives easier,
but they can also be dangerous. And I’m not talking about too much screen
time. Sometimes phones explode. Literally. Let’s find out why this happens and what to
do to prevent it. Let me clear one thing up before we get into
the details: the phone doesn’t explode, the battery does. And this usually happens with a lithium-ion
battery, which most modern gadgets are equipped with. Since 2016, cases of batteries igniting have
significantly increased. That’s why, as of this year, it’s forbidden
to store gadgets with these batteries in the cargo on an aircraft. In some cases, the phones not only explode,
but also ignite, swell, melt and even boil. Scientists from Canada were able to look inside
the phone and find out HOW it works. We’ll get into a bit of physics and chemistry
now, but it’s important to understand, and I’ll keep it simple. Because I must. The battery has a positive electrode charge
– a lithium anode. It collides with the electrolyte – the substance
that transfers electric current. The reaction of these two elements causes
the battery to heat up. Then, the lithium anode’s evil brother – a
negative electrode, or cathode, joins the “party”. At this point, it gets hot: the battery heats
up to 392 °F. And at this temperature, the electrolyte begins to decompose into flammable
substances – oxygen, carbon dioxide, and other gases. The battery can’t withstand the load and just
swells. And this is not swell. Often, the party ends here, but sometimes
the battery ignites. The outcome is not very pleasant, especially
if the phone is in your pocket. Many people have said that their battery literally
“boiled” like real acid. Now all lithium-ion is equipped with controllers,
sensors, and charge balancers to reduce the risk of fire. But sometimes this doesn’t help. So what exactly provokes this disaster inside
the phone? In fact, there are several reasons: 1) The electrodes are different in each battery,
and have different charging speeds. The electric current that gets transferred
to your phone during charging can simply be too much for your battery to handle. Nothing will happen after one charge, but
if you give your gadget more energy than it can take too often, sooner or later it’ll
be ruined. 2) The chip that monitors the charge level
on the phone can fail as well. This small chip “filters” the charge of
the current so that your phone doesn’t “eat” anything extra. If the charge is exceeded, then the chip simply
turns it off. But if this chip is broken, your phone will
come to an end very quickly. 3) The battery in the phone can very easily
be damaged if you drop your phone or accidentally step on it. If it’s damaged, the correct order of operation
of the electrodes will be violated, destroying the battery and provoking an explosion. Remember when cell phones were thicker and
heavier? Every year, developers try to make phones
sleeker and easier to use, but the thin and fragile designs make the phones more vulnerable. In the event of a fall, the septum of the
electrodes could be damaged, resulting in a short circuit that’ll instantly lead the
phone to overheat and ignite. 4) We can’t know under what conditions the
battery of our phone was created. It could have been scratched during assembly,
disrupting the technology, or accidentally introducing small metal particles into it. Even minor damage can lead to breakage. Production defects are rare, but nobody is
completely safe from them. The probability that your phone will explode
is small, but it’s there. Luckily, there are some simple and very reliable
ways to avoid it. 1) If you notice that the phone has become
hot while charging, then it’s better to unplug the cable and allow the phone to cool. Don’t cover it with anything until the heat
accumulated in the phone reduces. 2) Don’t buy cheap or unreliable chargers. The phone manufacturers create chargers that
perfectly match the battery in your phone. Yes, it’ll cost a bit more, but it’ll be
less than the cost of a new phone. The same goes for the battery itself. Only have it replace by certified personnel. The companies whose phones exploded turned
out to be innocent in most cases because the phone users had had the batteries changed
at unreliable establishments. Incompetent employees could accidentally damage
the battery or replace it with a cheap and poor-quality one. 3) Many people like to fall asleep with the
phone and put it under their pillow while charging. Hmmm. It’d be better to charge the phone in an open
space. And it’s best not to charge the phone overnight
at all; just do it during the day when you can pay attention to it. 4) Don’t leave your phone charging in hot
places. The sun can raise the temperature of the battery
and it won’t lead to anything good. 5) If you notice that the battery of your
phone is running out quickly, then bring it to an authorized service center. You’ll most likely need to replace it. 6) Don’t carry your phone in your back pocket. You might forget about it and accidentally
sit down, which will lead to the deformation of the battery. You should be careful not only with the battery
of the phone, but also with the Power Bank. In 2016 at the airport in Istanbul, a security
officer forbade one passenger from bringing a power bank onto the plane. The passenger got angry and threw the device
to the floor, resulting in a small explosion and smoke. Hmm. Point made. So if you’re ever angry and want to take
it out on your device, think twice. Batteries don’t only explode in phones. Many cases have been recorded of laptops,
toasters, hoverboards, and electric vehicles igniting. But honestly, I don’t want to end the video
on such a bleak note. So, here’s some advice about how to make your
phone’s battery last longer. 1) Once charged, pull out the cable. Continuing to charge a full battery will keep
it under stress. It’s like with muscles: after an intense workout,
they should rest. And after a year of such excessive “training,”
the battery capacity will noticeably decrease, and the phone will run out of battery faster. Also, the developers advise against recharging
a phone to 100%. 2) Charge the phone as often as needed, but
just a little bit. If you constantly charge it to one hundred
percent and use the gadget until it’s completely out of battery, then the battery will be able
to handle about 500-700 charge cycles. If you let it drop to about 50 percent, then
charge it a little and let it drop again, your battery will be able to handle 1,500
recharge cycles. The ideal level is to always keep the phone
between 40 and 80 percent. 3) Watch the temperature. Not only can the sun’s rays harm the battery,
but also frost. Carrying your phone in the outside pocket
of your jacket in winter is a bad idea. 4) It’s recommended that you completely drain
the battery (down to 0%) and then fully charge it, once a month. This “training” will help calibrate the mechanisms
that are responsible for the correct display of the charge level. 5) Try to replace the battery in any of your
devices at least once every two or three years. And the last question, which probably worries
a lot of people: is it okay to leave the charger in the outlet when you’re not charging the
phone? Experts say that there’s no risk, because
during the charging process the phone completely controls the power supply and turns it off
when you remove the charging cable from your gadget. But, if you have a poor-quality charger, then
it’s best not to risk it and pull it out of the socket, especially if you’ll be gone for
a long time. I hope you got a charge out of that. Hey, if you learned something new today, then
give the video a like and share it with a friend! And here are some other cool videos I think
you’ll enjoy. Just click to the left or right, and stay
on the Bright Side of life!

Bernard Jenkins

100 Comments

  1. Charge & Recharge limit is just absurd. Okay, you caid if I charge from 0 to 100% will limit the batt 500-700 cycles. While you charge from 40 – 80% will increase the cycle to 1500.

    Now be logic, if your batt can last for 5 hours in full capacity, it means 2 hours in 40% (80 – 40%). If we charge from 0 – 100 will make the battery cycle last for 500- 700 (let us take the mean), 600 x 5 hours = 3000 hours. While 1500 x 2 hours = 3000 hours. It means no differences. Even if you are lucky, full discharge and charge will give you extra 500 hours (700 x 5 hours = 3500 hours).

  2. i keep my phone in the freezer whenever it gets hot enough that i'm not comfortable holding it.

  3. I once left my phone on charging for long time and it exploded 😑
    I was really scared and I advise people to not do that
    But this video answered my questions . Thank you bright side 👍😊😊

  4. Fool oxygen is a catalyst, co2 is nowhere near flammable in fact it deprives the fire from oxygen

  5. Exploding batteries = Terrorist attack.
    Evil corp should be held accountable for their acts of terrorism.

  6. Bright side dude: “phones explode literally”

    Me(to my phone): uh oh

    Also me: (throws the phone) YEET!

    My mom: What did you do!!!

    Me:(goes to Japan)

  7. They don’t explode with out case’s when it’s time for bedtime leave it there or iPads like I do my iPad did not explode with out a case the next morning with that phone or iPad play a game on the iPad

  8. I was once told by an IT guy that if the phone is hot when touching it to pick it up (while it is unplugged) could mean that it has a virus, malware, or spyware or whatever.. true?

  9. When he said that the thinner designs of newer phones makes it more vulnerable, I laugh because I have the *iPhone 5s*. My phone still burns though, but at least I’m not at as high of a risk as others

  10. I use my phone while charging it for three years already, and nothing ever happened. Explain.

  11. That is funny "Authorized Service Center. " There is no such thing as authorized service centers. All manufacturers have what they call authorized service centers however the likelihood that you will get your original device back or your data back is slim to none. If you can get them to change the battery, their battery is just as likely to catch fire. Apple will tell you that there is nothing they can do so if you want they will give you a special price on a new one with trade in so you really have no choice but to use 3rd party repair. For the most part they are reliable. I saw a live video of an iPad 4 data recovery where Apple told a NASA employee that their wasn't anything they could do so they took it to a 3rd party repair and data recovery company. The owner of the shop was afraid that she couldn't recover the data was it had been left in a backpack in the forest for nine months. She did get up and running and was able to recover the data that Apple refused to do anything.

  12. no its not if your phone vooc super vooc vooc 3.0 your phone will not burn because this vooc supported realme redmi oppo and they say they available thatnyou can charge while playing

  13. I remember before i had my phone charge using 1m cable after a few days my battery which is 100 percent gone in 10 second then later i buy a good charger and there it's fix my battery decrease slowly again

  14. but my phone cools down and my adapter also cools down and stops charging 😎

  15. You are saying we shouldn’t watch your videos?
    Oh ok might as well click this and tap…..

  16. i just bought my phone, and it does heat up, while charging guess now it make sense, thanks for this advice,

  17. Thanks for making this video .
    i needed to take heed to it.
    i will be cautious with the phone
    In a way of charging it up to where.
    40 and 80.
    Keep making wonderful informative videos. .
    All of You working there
    is blessings to the public.

  18. Who thought this video was helpful make the button below blue. Coz' my favourite colour is blue.

  19. MY QUESTION is then why do phone companys have phones at their store charging all day??

  20. I bet they make sun system charging so u wouldn't go home and waste ur time

  21. My iPhone swelled 3 years ago and I threw it .5 minutes later it exploded.

  22. Hey, if we charge after down to zero – battery lost after 300- 500 cycles.

    In order we maintain in between 40- 80%, battery lost for 1500 cycles.

    In 2nd statement we might charge more often than previous one.
    Which leads to 500 = 1500 times

  23. You do realize that Lithium Ion batteries only ignite when overcharged or short circuited? What actually causes these batteries to ignite during charging is usually a knockoff protection circuit. Just stepping on your phone or dropping it doesn't damage the battery. Lithium Ion batteries are solid state batteries. They're solid and stable. The only way to get a LiPo battery to ignite is to puncture it with a conductive solid object. That story about the power bank is completely false. It's impossible. Even if he took the battery out of the power bank and threw it, it would have not ignited. Power banks also typically use Lithium Ion batteries, more specifically 18650 cells. Same with charging your phone when it's full. The BMS (battery management system) keeps the battery charged, but stops charging when the battery is full. It does not keep charging. That would overcharge the battery and make it unstable. This video needs some fact checking. I don't know where you got this research, but it's not legit.

  24. ME :SEES THE THUMBNAIL
    ME: PUTS THE PHONE INTO THE GARBAGE BAG PUT IT INTO RECYCLE

  25. No soy español así que si puedes entender esto / eres español no soy español soy inglés así que no respondas en español uwu

  26. This video really freaked me out especially the part where the phone explodes in your pocket.

  27. The reason battery explode in computers is because computers that are markerted as flagship are purposely designed to break but disquises the time bomb as a high end watch so go for the best economy runner products not high end or budget unless you just like wasting money .

  28. Lol not to sadistic or anything, but what if just one cell phone suddenly exploded on a nuclear level and decimated an entire major city?

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