How do we charge the batteries? All about Li-ion charging
HTML-код
- Опубликовано: 13 сен 2024
- Ebay store: www.ebay.co.uk...
WebSite: sorinelectroni...
Patreon support: / electronicsrepairschool
RUclips Members: / @electronicsrepairschool
Forum: forum.sorinele...
Discord: www.sorinelect...
My tools: www.amazon.co....
PayPal me: www.paypal.com...
From the Islands of Philippines mabuhay ka sir Sorin! (long live) Salamat sa'yo! (thank you) God Bless you!
I've still got my Nokia 3120 from....... still powers up with original battery. I'm learning heaps, thanks for your simple to understand lessons. 👍
So now I am fully charged
I give you the thumbs up 👍🏻 and watch the next video.Sorin,
Thank you for the time and the information.
Excellent information. Thank you for the time. Greetings from Venezuela.
Hello, and good day! I Love your program, and your style of teaching. I've been working with electronics now for about 40 years ( Really as a hobby ) My father started me with it. My first learning experience was with a R/C 5 channel tx, receiver, and 4 servos by Heath Kit. Do you remember Heath Kit? Anyway as long as I can remember I've been tearing electronic appliances apart, but not so much putting back together lol. I Love working with electronics ( Any electronics ) I just wanted to say THANK YOU, and please continue with your great way of teaching.
Good thing we have people like you. I learn so much but i would appreciate if you give a lesson how to diagnose and fix stereo receivers, amplifiers, domestic ones. I fix them since a lot of years but i always have big problems sometimes and i would like you to give quick tricks to diagnose amplifiers rapidly. Many thank's Sorin.
Thanks Sorin, I learnt so-much about charging Battery
Thank you Sorin, and also all great vidéos. Many thanks. Phil
Great, informative video - thanks.
btw - I would not suggest people leave a battery charging on their bench power supply unattended. Not only is best to keep an eye on any charging lithium battery but I have seen a video of someones bench power supply going up in flames for no obvious reason (I have a feeling it was on the EEVBlog?).
This is really nice, I always thought charging batteries had to be very precise voltage. Thanks for the video
Excellent presentation. Thank you for sharing your knowledge.
Thanks a lot Sorin for explanations
Thanks U Mr. Sorin for sharing us your valuable knowledge...
I always been watching ur video till the end, I'm watching every videos you upload because I learn alot from every little thing you said and it really helps me, even on the videos dedicated for beginners I still learn from it and I feel glad to watch it... Thanks alot... I hope you will still continue to teach us more... Really really thanks alot for being there to teach us. You're more than a friend to us.
Excellent teaching skills and another hidden video on how to charge lithium ion batteries. I have few non working lithium ion batteries i will check whether the cell or the board is dead like you did with that camera battery
Thank you Sorin! Very informative. I learned a lot and now know what to do when friends give me their stuff to fix and it is dead, and I have no charger. Doing so now with a Lenovo ThinkPad someone left with the power adapter is known to be no good and the laptop will not turn on. First I will charge battery with psu, then test computer...
I don't have words to say, just big thanks
4.2V fully charged
3.7V nominal voltage
3V-3.2V cut off voltage
Chear interesant tutorial. Multumim
Nice video, thank you
Thank you for this video very well explained ....
Yay! A new video from Senpai Sorin! Thank you.
Thank you! (it toke me a while to find out what Senpai means) :)
@@electronicsrepairschool :))
Nice teaching methods. i really appreciated
Thank you so much for the knowledge sir.
thanks that was a verry good explanation video about li ( if you take out the protection and you leave the battery charging can it go on fire or wat?? is the protection there for fire problem on li io or explosion of the battery???? pleas explain???
at 19:08h we charge with constant current should be with limited current (I think), else voltage will go up to maintain current even at 8.4 Volt or above ?
but apart from these small points I really love the practical way to look into electronics and I learn all the time, thumbs up Sorin
since there is no change in the way the battery charges no matter how high you put the voltage, is the same true when you turn the voltage way down?
Thank you very much, Sir.
GOOD LESSONS
Thanks for the info..
Thanks , this lession a have waited for , battery lession , Thanks very much !!! maby a micro solder course before christmas ??
Thank you
Thank you again one of the best video. But what did you mean by when storing the bettary it not supposed to be full charge or discharged, why?
Hello Sorin. I have a problem with what you said about using any voltage when you limit the current. I agree that you can do that but that's just the first part of charging. I'm afraid some of the viewers will leave the battery charging with current limit but with a higher voltage than the fully charged voltage and that will kill the cell. You should tell them to limit the current but also the voltage!!!
Multam fain!
I think you didn't watch the video to the end because Mr. Sorin said that.
17:48 he told them already about that in this video :)
But I know what You mean. I bet that a lot of fans here doesn't even have service power supply where you can limit the current. I bet a lot of them want to charge batteries with regular simple chargers. Someone will take a printer charger, then read that it has 24v and 1amp output and will think that it has current limit 1amp and voltage is not imprtant :) It could be nice if Sorin could say that we have to be careful doing it and do not make short on battery because if battery doesn't have an electrionc, then it could make an cell explosion or fire if stays alone. Sorin told about that - but yeah - too quiet.
for the rest - nice video - i'm enjoyed watching this ;)
if you let the battery voltage go above 4.3volts - you are creating a bomb!!!! - on a protected cell, you will trip the protection and destroy the battery initially its charged with constant voltage but then must be limited to 4.2v - if you charge 2 cells "in serial mode" and the internal resistance is different in each cell, then you may overcharge one of the 2 cells
Thank you sir
Very Well Understand
Hi shorin and happy new year. Thank you for your amazing lessons in this chanel . I dont understood one thing... I have xiaomi (redmi note 4) three years now and the battery is perfect . But you say li-ion batteries after 2-3 years is going down. How this battery is still perfect??. My charger is 5V - 2A
and my battery is 3.85V , Charging Voltag Limit 4,40 V , 4000mAh , Rated Voltage 3,85 V.
Thanks for you time.
Simple way to explain it: no charge, high current, low resistance. fully charged: low current, high resistance. From no charge to full charge the resistence will vary: low resistence to high resistence. electricity is like water: charging voltage needs to higher than battery voltage to allow flow into the battery. if the charging current does not drop then battery is not charging and is defective. think thats the basics.
What power supply/setup are you using with your computer?
Yes. Same goes with a car battery a conductive sludge forms at the bottom current will continue flowing but the state of charge will remain the same. With lithium batteries a conductive channel forms between the two metal strips.
Hello, welcom back Master
Have à good week-end :)
thank you, great lesson
nice video sir good job.
So based on what u said @ 31:00, how are fast charging features work these days? They intentiinally ruining our batteries for their sales?
Hello, I am interested to know how to start iphone without battery using power supply? There is electronic board inside the battery wich is required for phone start up, but I saw many videos where phone is starting using univesal cables conected to power supply. Thanks.
good video,dar pe viitor poate explicati cind un laptop are a short ,ce controlezi prima data,charging port?sau poate check resistors,transistors capacitors etc.ca incepator trebuie sa ai schematics?Cum iti dai seama ce este gresit?Am 64 de ani si your videos sint foarte de folos .Sorin,apreciez foarte mult your videos .Multumesc foarte mult,abia astept for next one.
Salut, verifica aici pe canal, am multe video despre cum se verifica un laptop
is this the same for LiPo batteries? ie i have a Li-Poly battery for a drone, can i use this same method?
Why its sometimes on Samsung or Huawei batteries printed voltage 4.4 V, 4.5V ?
Hi thank you for the lession i see every time your session very interessant .
I try to repair video card for pc but i not found the diagram, you ave any idea Ware i found it . Thank you again.
Giancarlo
hi can you make a video abut schamtic reading how to work with them how to start dignsconic a phone with the programs out there
good job sorin ,but how to repair battery board?...
Hi tell me about the voltage regulators
Sorin are you still making videos?
That camera battery is acting normally.
The protection detects an under voltage condition, and cuts the cell off to protect it.
Just charge the cell above 3.2V, and it will work again.
that impossible. If we can say the battery has a very smart charging circuit, should charge with low current up to 3-3.5v, but thats not the case, is taking no power at all. The best way to protect the battery is to open the charge no meter what and charge the cell at least 3.x. Li Ion cells get shorted (not always) if they are under 3v
What kind off bench power supplys allow current limiting ?
Any proper bench power supply has a dial for reducing or increasing current. I bought an Eventek from Amazon which has both fine and coarse adjustments for both current and voltage.
Hmm...does this mean when you use charger for laptop,current is important,not voltage?
you must make video how you will fix that board
My smps cc/cv psu says that when I use it to charge battery I should use a diode at the output to protect the psu. Do you know how/when a battery can kill a psu and why?
If the smps voltage becomes lower than that of the battery a backwards current will flow from the battery to the supply. As the battery charges it increases its voltage and the charging current has to start decreasing till the two voltages become equal and the battery will behave like a charged capacitor. Current always flows from higher potential to lower potential That may also happen if you try to power capacitive/inductive load due to dI/dt (current change) induces back emf. Without a diode any voltage spike will kill the supply.
@@brk932 I understand that. I figured out this:as the battery charges everything is OK, but sometimes you may have a power failure at the mains and at that time the smps shuts down but the battery is still connected (happened to me yesterday)!
Any idea if a linear power supply has the same danger as an smps?
Thank you for the reply!
Actually the board didn't died this board has its own overdischarging protection when the battery goes below that volt the board stops working bcoz highly discharging battery can cause fire
Yes.l have a problem my car dvd play negative picture can you please tell me why l lose the colour.what wrong with my dvd.thank you for your attention
Can anyone help me with LED backlight i have watched video of sotir all about backlight and i bridged 3.3 V but still no light i put phone behind panel picture is there but dimmed...
I wish all Russians were like you, and similarly all Americans were like you Thanks
WhooHoo! Battery autopsy!
Hello Sir :-)
BALANCE CHARGE ALL LIPO BATTERIES RC PLANES ,CARS....
Please provide me with phone repair pdf ebook,no one is willing to train me ,trust isue