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Does overcharging hurt your phone?

– You’ve probably heard people say that you shouldn’t leave your
phone plugged in overnight. Doing so depreciates your battery life and makes it age faster. You’re killing your battery! I always charge my phone overnight, and I always let it
reach a full 100% charge. Am I really killing my battery? Am I a murderer? I can’t live with this guilt, so I called up some battery
experts to find the truth. Daniel Steingart, Associate Professor at Princeton University
told me that, actually: – [Daniel] The easiest thing to do is just keep it plugged in all the
time or as much as you can. – Did you hear that? I’ll say it again, “as much as you can.” The way he sees is it is that we all need our phones ready and charged, so we might as well keep
them fully charged forever. Your phone is pretty smart,
and its software recognizes when it reaches full charge, so you can’t technically
overcharge your battery. Problem solved! But not really. I also called Venkat Srinivasan, the Director of the Argonne
Collaborative Center for Energy Storage
Science, and he told me: – [Venkat] Don’t charge the battery all the way to 100%. Get it up to 90% and then stop it. – He never lets his phone
reach a full charge, what? He says we should keep our phones between 30% and 80% charged
because once they reach 100%, certain reactions occur that
degrade the electrolytes and depreciate our batteries. So this is probably where that
overcharging myth comes from. Alright, so I went back to Dan,
and I asked him to clarify. Like, Venkat says you’re wrong. And Dan told me that both
of them are actually right. So, awesome, you do damage your battery when you charge it to 100%. But if you’re going for
the full charge already, keeping it there doesn’t harm it. Basically, if you are a normal human who just needs their
phone out all the time, feel free to go to 100% and
keep it plugged in forever. But if you care a lot
about your battery’s life, like, a lot, a lot, or you don’t use your phone that much, go Venkat’s route and try to keep it in a narrow charging range. I admire your discipline, and maybe you’ll extend your battery’s lifespan. Ultimately, though, batteries
are meant to be used, and phones are meant to be used too. You don’t do any damage
by leaving it at 100. You’ll probably replace your phone before your battery totally dies. Or in a worst case scenario,
you replace the battery. That’s not so bad. Okay, glad we settled this. Go live your truth, keep it 100, goodbye.

Robin Kshlerin



  1. iGameDaily Posted on April 15, 2019 at 2:52 pm

    You know what when my phone charge at 100% its stop charging then the electricity of my charger stops

  2. Kicks Gaming Posted on April 19, 2019 at 1:06 pm

    This didn’t help at all…

  3. Elusive Quarterfinal Posted on April 19, 2019 at 2:26 pm

    credit on this vid on point no fuss.

  4. tjefferson llamos Posted on April 26, 2019 at 2:37 pm

    i was scared because i forgot my phone some times plugged for 7 hours but my phone is completely 100%

  5. Cloudy Posted on May 1, 2019 at 4:04 am

    Lmao I charge my phone non stop 😂

  6. Ansar Ali Posted on May 1, 2019 at 1:22 pm

    I thought there will be a link for the wallpaper

  7. Only Legends Can Subscribe Posted on May 1, 2019 at 2:15 pm


  8. メ卄ruaia Posted on May 1, 2019 at 4:05 pm

    Just say it already
    Yes Or No?

  9. WINDOWS 10 Posted on May 2, 2019 at 8:03 pm

    i charge my phone to 100% and i think my battery is getting damaged cuz when i bought my phone the battery was better but now its a little bit worst

  10. James Nunieza Posted on May 3, 2019 at 1:02 am

    If that's the case, why don't designers just program the phone to make it look like 100% for the phone but only 90% of the battery is charged? Or maybe it already is we just don't know it.

  11. Weign Posted on May 3, 2019 at 8:24 pm

    I overcharged my phone.

    Now the max battery capacity is 101%

  12. Pukafu Posted on May 3, 2019 at 11:07 pm

    My phone battery is broken because I overcharged it 😭😭😭

  13. AbdulMuiz Khan Posted on May 3, 2019 at 11:27 pm

    The effect is worse for Android phones for some reason. Android phone batteries seem to degrade faster

  14. Lonely Noob Posted on May 3, 2019 at 11:50 pm

    It killed my macbook…

  15. Michael EZ Posted on May 4, 2019 at 1:57 am

    can someone please explain to me what'd she tryna say

  16. Kevin Li Posted on May 4, 2019 at 8:14 pm

    Phones are meant to be protected not used. They are my best friend

  17. Puck Sheet Posted on May 4, 2019 at 9:58 pm

    ask Samsung

  18. Oasis Posted on May 6, 2019 at 7:24 am

    I put it overnight and at 100 percent, my phone is fine

  19. Abigail Animations Posted on May 10, 2019 at 1:28 am

    I let my phone charge for 7 hours ;—; is that bad it was the first time that this happens to me and I’m not sure 🙁

  20. 7 k Posted on May 10, 2019 at 11:52 pm

    Meh… I dont trust the people you called. 😆

  21. X -CALIBER Posted on May 13, 2019 at 3:39 pm

    I charge my phone multiple times in a day.Will that cause any battery damage?

  22. IshidaNikurasu Posted on May 14, 2019 at 3:11 pm

    this answerd nothing, at all.. and good luck changing the battery on a newer S or Note series. If theprice of the battery doesn't kill you, breaking open the phone will.. So i guess never mind buying a DeX Pad..

  23. Sean Maro Posted on May 21, 2019 at 4:29 am

    Thank you so much 😁😁😁😁

  24. Colored Kid Posted on May 29, 2019 at 12:36 am

    Wow her Bobs are big

  25. Gamer Ps4-202 Posted on May 29, 2019 at 7:54 am

    Please help i put my phone on charge then i heard a shock and my phone turned off then i turne it back on it was 5 after it turn off and i turn it back on i saw it on 70 im just worryed about my phone did any thing get damage?

  26. Teamslothforlife Posted on May 30, 2019 at 1:47 am

    I only charge it overnight if I have a road trip. So it will be at a 100% and I have it power off till we get on the road.

  27. Apery Vane Posted on June 4, 2019 at 11:35 pm

    I left my phone charging for almost nine hours, is it still okay?

  28. Gordon Matthew Posted on June 10, 2019 at 1:51 am

    Damn she's hot

  29. Mutton Rolls Posted on June 10, 2019 at 8:48 pm

    basically no

  30. Anurag Parihar Posted on June 14, 2019 at 2:21 pm

    How many of you visited comments box to confirm that she is right or wrong?

  31. Brian Posted on June 19, 2019 at 3:31 pm

    iPhone just charges for. 10 hours

  32. Regina Phalange Posted on June 25, 2019 at 5:21 am

    what a useless video with no actual scientific answer! just some random opinion of a no body! disliked

  33. Incognito Posted on June 25, 2019 at 12:49 pm

    yes it hurts for your phone if you leave your phone charging during night and you sleep the phone will explode, dont forget to unplug the charger on your phone when your ready to sleep

  34. Johnny Gibbs Posted on June 26, 2019 at 3:43 pm

    i had my phone for 4 years and always kept charge between 50-75%.

    i watched a guy do a battery test after he left his plugged in every night and his results were like 75% health, good for an old phone.

    did the test on mine and it was like 95% healthy

    interesting but overall not worth the 4 year stress of keeping charge at that level. Wish there were a proper actual video out there on this stuff.

  35. Austin Martín Hernández Posted on June 26, 2019 at 6:21 pm

    You can't replace the battery really in most phones today… What is this, 2009?

  36. Jikku Jose Posted on June 27, 2019 at 2:42 am

    Possibly companies are only letting the batteries hit 90% mark even when they show a 100%. So most probably it's never going to overcharge and damage itself.

  37. Weird Textstorys Posted on June 27, 2019 at 3:15 am

    My max capacity on my iPhone 7 is 53% Omg! It dies in 28 minutes too 😕, someone help

  38. Richard Labaš Posted on June 27, 2019 at 12:05 pm

    I am here little too late, but the iPhones saves your battery – they actually tell you that you have charged to 100%, even though you really have just 95%. So even if you let it plugged every time, you usually don't sit at 100% battery, so you are not damaging it as much. Second thing is, letting battery deplete completely is much worse than sitting at full charge – so if you are heavy user, I would recommend more to charge to 100%, than run out of juice every day.

  39. halley oey Posted on June 27, 2019 at 1:16 pm

    $200 dollar phone doesnt care about this

  40. Subham Dubey Posted on June 28, 2019 at 4:12 pm

    I kept my phone plugged in all the time and now my phone's battery is swollen….like it's become pregnant had to replace it with new battery….very bad advise don't keep your phone plugged in all the time….

  41. JASON Posted on June 29, 2019 at 2:04 pm

    I never charge my phone overnight

  42. CJ CJ Posted on July 3, 2019 at 3:49 am

    30 an 80 iF I CoULd Of SaiD ThAt LiKe tHiS I wOuLd😂😂👎

  43. Fanaticalplel Oof Posted on July 3, 2019 at 11:28 pm

    Thank you! Straight to the point!

  44. YAKzOO Posted on July 5, 2019 at 8:49 am

    You can expect a longer life from your battery if you charge to 80% and if your allways charging to 100% you will lose capacity over the years. Li-ion batteries have a certain number of times you can charge and discharge before the battery lose capacity. Thats why ur battery messes up over the years because ur charging to 100%(4.2v). Charging to 85-90% (4.1-4.15v) you can expect a longer life without losing capacity.but i charge to 100% because i change phones every 2 years and like the extra capacity.

  45. XnamzX Posted on July 5, 2019 at 7:48 pm

    I used to have a s5 and I always overcharged it overnight and my battery broke now I let it charge to 95

  46. IEJ7to1 *IEJ7654321* Posted on July 8, 2019 at 9:15 pm

    Don't overcharge if your phone has fast charging.

  47. Luziaf the Loner Posted on July 11, 2019 at 4:28 am

    Who cares, it's not like I'm going to used the same phone for 10 or 20 years to keep it as healthy as it can

  48. Annie k Posted on July 12, 2019 at 1:54 am

    Only once i forgot to unplug it at night…will it spoil my battery please answer…

  49. Matty Jackson Posted on July 13, 2019 at 11:10 pm

    “Thats not so bad” i thought we are trying to become a zero waste society. Depreciating phone batteries and getting a new phone every two yrs aint great for the environment

  50. Nicolo Don Diego Posted on July 15, 2019 at 11:03 am

    One thing i like in the samsung galaxy when you charge your phone up to 100% it will automatically turn off so when you pick it up your phone there is no harm.

  51. purple melon Posted on July 17, 2019 at 12:29 pm

    Then make the phone stop charging at 90% instead of 100%… Problem solved. Wait,doesn't that make 90% a 100%?

  52. WusssGoof Posted on July 19, 2019 at 5:11 am

    well say that to my macbook, now my battery needs changing smh

  53. Michael Upchurch Posted on July 21, 2019 at 2:21 am

    I spoke to a Samsung Electronics Rep and he told me otherwise you can charge to 100 % especially if you own a s10 plus or s10 cz the battery is a graphene battery they dont deplete overtime

  54. Shana Jaff Posted on July 21, 2019 at 11:24 am

    My father can reach with a power bank to 200

  55. Shana Jaff Posted on July 21, 2019 at 11:24 am

    My father can reach with a power bank to 200

  56. 「 Descencious 」 Posted on July 25, 2019 at 2:47 am

    So my routine was pointless the whole time?

  57. Your Beloved Neighbor Posted on August 1, 2019 at 7:02 am


  58. adora enthusiast Posted on August 6, 2019 at 10:15 am

    its 5am and imma end up sleeping until like 3pm, but im really paranoid so i got anxious that if i left it charging for 8 hours and its currently at 68% and since my phone charges rlly quickly i always feel like its gonna explode or sumn, i meannn…..

  59. OsoWxvy Posted on August 11, 2019 at 3:29 pm

    Im probably the only person that doesnt overcharge at night here 😭

  60. DOCTOR CRAZY Posted on August 11, 2019 at 4:37 pm

    Can't I overcharge myself

  61. EnderGamer 0109 Posted on August 16, 2019 at 3:17 pm

    I want to afk all night by playing games is that okay?

  62. mac denver gonzales Posted on August 24, 2019 at 3:23 am

    i got this..!!

    :oppo f11

  63. Tommy Posted on August 25, 2019 at 11:16 pm

    Video started, looked so professional I started looking for "Skip ad in…" window on my monitor. Strange but in a good way. Great video!

  64. Akshay Ajith Posted on August 26, 2019 at 5:22 am

    Yes. You are a murderer 😂😂

  65. 亗Raj Patil Posted on August 26, 2019 at 5:51 am

    Oops im on 99%battery charged

  66. My own Idenity Posted on September 13, 2019 at 4:21 am

    What is" live your own truth? Isn't there only one truth?

  67. Rogue_Ruby_kate_ king Posted on September 15, 2019 at 11:24 am

    I don't know what to do 😭😭😭

  68. Darmin Axel Posted on September 19, 2019 at 3:34 am


    If your phone is smart and it detects when it's 100% charge, where does all the electrons go from the wire?

  69. Mc Joven de Luna Posted on September 22, 2019 at 4:26 am

    is it the same for power bank and bluetooth speaker?

  70. Elliot Rivadeneira Posted on September 24, 2019 at 4:04 am

    Terrible video.

  71. Fun Gaming 21TM Posted on October 7, 2019 at 9:05 pm

    My phone de-chargers for somereason

  72. FBI Kun Posted on October 12, 2019 at 8:07 pm

    I really don't care because my oneplus 6 official battery replacement costs just around 15 Bucks

  73. Justin Z. Posted on October 22, 2019 at 12:51 pm

    Idk but My Phone stops charging when it hits 100 and It offs the Charger so it wont break.
    i Charge it Overnight and nothing happens lol
    And btw I did this for 4 yrs(my phone is almost 5 yrs old lol)

  74. Olando Anônimo Posted on October 29, 2019 at 7:01 am

    Nicolas Cage “It’s like parking your car in certain neighborhoods in the Bronx, you just don’t do it.”

  75. blackswan Posted on October 30, 2019 at 1:19 pm

    0:55 i unplugged my phone charging at 99% exactly at this time

  76. Bob Rosss Posted on November 5, 2019 at 3:18 am

    So I accidentally left my phone charging at school ummmm yeah it’s probably been charging for a good 6 or 7 hours now

  77. Dano1947 Posted on November 9, 2019 at 1:01 am

    Since there is no charge alert, how do you charge to between 39-80%?
    I let mine go down till it says charge battery and then I charge to 100%.
    Why are there people who want to rain on your parade? I never buy a new phone at full price, instead I buy a refurbished phone on the cheap.

  78. Shawn M. Posted on November 10, 2019 at 2:27 pm

    Your advice sux. Overcharging hurts your phone over time. The 2nd guy is correct.

  79. Michelle Soucy Posted on November 12, 2019 at 1:59 am


  80. MisterNulpii Posted on November 27, 2019 at 5:14 am

    My max battery capacity is 84% 😩 😩

  81. I watch Anime Posted on December 1, 2019 at 8:42 pm

    Don't mind me I'm just watching this video on my Overcharged Phone

  82. AnthonyyMak Posted on December 2, 2019 at 2:51 am

    I'm watching on 100%

  83. Evelyne Partial Preterist Christian Posted on December 2, 2019 at 11:36 am

    I just purchased a wireless fast charger stand, l let my phone play music while it's charging.

  84. Wayne M Posted on December 2, 2019 at 10:08 pm

    So why not just program the OS to limit the phone from charging to 100% when plugged in?

  85. Lunar Posted on December 4, 2019 at 2:54 am

    Ohhh so that’s why Lenovo’s conservation mode exists it basically caps the battery at 65% max so it doesn’t get fully charged

  86. xs popz_ • 4 years ago Posted on December 8, 2019 at 1:54 pm

    When your phone is 100% it won’t charge anymore no need to worry

  87. laka paka Posted on December 9, 2019 at 11:04 pm

    Watching this before going to bed just to sleep better…

  88. Zain Iftikhar Posted on December 10, 2019 at 2:08 pm

    It does do damage though.. but for a person who can replace the battery after 2years its not a problem

  89. Tanqr Fan FOR LIFE Posted on December 12, 2019 at 6:41 am

    I did notice if i charge my phone to 98% it last longer but when i charge it to 100% it drains so fast

  90. Sara Shah Posted on December 17, 2019 at 1:53 am

    I mistakenly charged my phone overnight now I'm here! Silly me😣😂

  91. CALEB BLAINE Posted on December 22, 2019 at 8:48 pm

    hey where did you get your phone cover

  92. Deborah Byrd Posted on December 22, 2019 at 9:47 pm

    Actually I think you meant playing your phone while charging it lowers the battery life so it goes dead faster.:Bestfreind: Uhh bro you do it though.:Me: LIIIIIKKKKKKEEEEEEIIIIIIIICCCCAAAAAARRRRRRREEEEEE

  93. ItzMasterleen Posted on December 22, 2019 at 10:05 pm

    Once my phone was 58% and then 5 minutes later of was BOOM 100% is that good or not

  94. K.A Posted on December 23, 2019 at 8:43 pm

    Watching this at 120%

  95. KiD Posted on December 26, 2019 at 12:44 pm

    In short: Stop worrying about little things such as overcharge or hurting ur batteries

  96. WAZAAAken Wazaaa Posted on December 26, 2019 at 1:16 pm

    It’s a phone, you use it all the time, it’s the life of a battery… it discharges so it’s needs to be charged every time it’s low… plugging and unplugging also does decrease its lifespan but you have to use it as much as much as you need to… it’s a phone not a Bluetooth speaker…

  97. Echo Ponce Posted on December 27, 2019 at 12:16 pm

    the one who will be asked " the people who make battery"