yashsingh1/xdaforums huggingface dataset:
[G2 General] superandroid2011:
I think LG has put some room over 100% on LG G2 battery.

If you unplug your phone right after it hits 100% you'll notice that it'll not take longer until it reaches 99%.

However, if you let your phone charging after it hits 100%, it looks like that the battery still has some room to store energy.

I let my phone charging over 100% until the device was cold (which I understand that it is not charging anymore) and it took around 12 hours with very little use to it to drop from 100% to 99%. The next drop from 99% to 98% was much faster, not even an hour after.

So, if it is true that not fully charging the device is a good manner to prolong battery life, then unplugging G2 once it hits 100% it is good because it is not actually fully charged.

In the end I don't take too much attention to that and will let it get that extra juice over 100% because I'll sell the phone between one or two years of use anyway...
[G2 General] nonreality:
A simple solution for people that charge their phones and go to bed. Not a good idea to leave it on the charger so just go to Walmart and get a 10 buck digital timer. (I like the digital because you can fine tune the on off times down to a minute works good for resetting my router in the morning) Sorry I wandered, so you just set the on off time for the longest time your phone takes to charge and plug it in and plug you charger into it. It's not exact but who is about unplugging. This will make sure you don't over charge and put wear and tear on your battery. I got the Brinks brand for the router and it works perfect. Hope this helps.
[G2 General] Kreuger:
Do not charge batteries longer than needed. Don't leave them constantly plugged in or try to charge past 100%. It kills the battery.
[G2 General] GalaxySIIII:
I have external charger and I am charging batteries in there :) have two and circulating them nicely

they actually DO stay last good am almost all day in work and come back home with 60 to 70% percent..

same as good as G2 internal battery
[G2 General] Rayan:
I insist, that's not actually true. That's old fashion Ni-Cd kind of thinking...

Lithium Batteries are smart in determining when to stop taking a charge!

They have protection circuitry in them!

It's just dumb to think that I need to be constantly checking my phone to see when it reaches 100% charge while plugged in to USB or while resting on the wireless charger while I'm working... :silly:

The message to "unplug" the charger when fully charged we see on more and more phones is for energy saving purposes only, not to avoid overcharging!

Cheers!
[G2 General] GalaxySIIII:
Sometimes I put phone on charge when am going to sleep and unplug it in the morning .. but once charging hit 100% the message will ppop up unplug usb cable to save power that means phone is powered with wall charger not battery .. I tested it .. I left cable plugged in and I have removed battery and phone was still on ...

I was wondering why manufacturers don't make smartphones power SAME way as laptops .. that is shame !

I have laptop and I NEVER plugged battery in .. battery was in the box since purchase .. So would be cool if we could have phones powered just with charger EVEN when battery is removed ..
[G2 General] metalboy94:
As some people (thankfully!) mentioned earlier in the thread - yes, Li-Ion batteries do not overcharge, BUT are harmed by staying at high voltages for long times - but that's not all! When you leave a phone plugged in overnight, it will charge up to 100% (beyond the 100% mark on the G2, actually), then let itself discharge slowly until ~95%, then recharge up to 100 and so on. These micro charging cycles harm the battery, since it's just like plugging your phone in repeatedly.

It is also harmful and NOT necessary to discharge your phone down to 20% or lower each time you charge it - or if you do, at least do it after using the phone on battery for a long time (I went down to 2% yesterday after more than 36 hours on a charge).
[G2 General] Rayan:
Oh my God!

I can't believe this!

If that was true then that would be explicitly mentioned in the manual or even on the box itself other than to save energy on your bill!

Also, every single working unit on display at your nearest phone company would be dead by now.

That battery circuitry is there for a reason!

It takes care of charges and voltages!

Please stop the nonsense!
[G2 General] dirceucorsetti:
This and also if your phone isn't getting to the end of the day with ~30%, then you can disable 3g or LTE while the screen is off. Tasked with Secure Settings will do the trick.

Your phone will be in edge, which is the mostly available coverage, thus reducing power consumption.

Enviado de meu XT925 usando Tapatalk
[G2 General] metalboy94:
Try unplugging display units, see how they fare.

And, mentioning on the box? Hello, economics 101? There's a great deal of money being made from extra batteries sold by manufacturers or carriers.
[G2 General] Rayan:
Yet some more nonsense... :D

Many Androids including our beloved G2 don't have removable batteries, not to mention the small amount of iPhones, iPads, iPods out and about...

So yeah, I don't believe that conspiracy theory of yours... :)
[G2 General] GalaxySIIII:
i dont think it is 955% as soon phone detects 99% it will start charging .. and when i had phone charged unplugged (few times) it was 100% i went to bed and in the morning STILL was 100%
[G2 General] mab71:
Yeah... So they can sell new phones instead of just batteries... Duuuhhh
[G2 General] xblackvalorx:
You take it in and have the battery replaced?

If it goes out in warranty, using a sealed back costs them money.

Think about what you're saying seriously.

Rayan is the only person in this thread making sense. So many people have controversial views on app killers but there's a reason they're becoming so popular in stock software.

Lithium batteries indeed have their own monitoring. They limit their voltage.

If any of you have any basic understanding of electricity you should understand if you're not running over in voltage you're fine. The battery knows no difference between the amperage of 100% and 40 hate to burst your bubble and to the guy who said manufacturers say keep them at 40% for storage that's nonsense. They charge them to 100% the charge you see depends solely on how many weeks it took to get here from Korea. If what your saying is true how can a Duracell lithium battery hold completely at 100% for 20+ years?

Wake up kids. Running your phone constantly under voltage is bad, battery voltage goes down when capacity is low, and they have chips to only charge them to perfect voltage.

Charging from 40-80 isn't good for your battery. Keeping it's voltage up where it's supposed to be puts less stress on the battery because at low voltage the current is weaker and the cells have to work harder.

Charge as much as you can, but like others have stated. Plug it in at night night wake up ready for the day don't let your battery run your life for a 5% life span difference. If it fails early it was defective nothing you can do.
[G2 General] metalboy94:
This is getting ridiculous. Check ebay, it's chock full of iPhone or G2 or AnyDamnThing batteries, original or 3rd party (did I mention that if your idyllic theory was true, the other accessory manufacturers would also go down?).

If you don't want to believe me, fine. I've seen the battery life of a GS3 left to charge overnight every night, it's less than half the original one. High voltages cause plating of the lithium sheets inside the battery, which reduce their capacity of storing current. But again, it's your phone, your call.
[G2 General] mab71:
You don't even know what i meant and you easily judge?

Hey guys... Its really getting annoying with all these contradictory information...just close this stupid thread and let everyone charge their phone the way that suits them best.
[G2 General] hkwildboy:
Do you think your words are more credible than his? Afterall, you've never provided any reference to sustantiate your view other than saying: Trust me, I must be right!"

I would definitely think the words of Mr. Buchmann carries more weight than yours! :eek:

http://www.wired.com/gadgetlab/2013/09/laptop-battery/

Cadex Electronics CEO Isidor Buchmann told WIRED that ideally everyone would charge their batteries to 80 percent then let them drain to about 40 percent. This will prolong the life of your battery — in some cases by as much as four times. The reason is that each cell in a lithium-polymer battery is charged to a voltage level. The higher the charge percentage, the higher the voltage level. The more voltage a cell has to store, the more stress it’s put under. That stress leads to fewer discharge cycles. For example, Battery University states that a battery charged to 100 percent will have only 300-500 discharge cycles, while a battery charged to 70 percent will get 1,200-2,000 discharge cycles.

(for reference: Cadex specializes in the design and manufacture of battery chargers, analyzers.

http://www.cadex.com/en )
[G2 General] metalboy94:
Thank you for this, Battery University on its own is generally not as credible.
[G2 General] ctyonthehil:
Can anyone provide some credible sources to quantify (in real world terms) just how much damage charging over night does to a battery?

I've read through several of the links posted, yet the only thing I was able to glean was that: if one charges to 80% and only discharges to 40%, it will increase longevity by about 4 times...(gross oversimplification of one of the links)

I guess I'm just wondering how normal usage (with the occasional discharge below 20% and charging over night) would actually affect the typical user who replaces their phone every 2 years.

Also, thanks to everyone who has contributed with source links so far. Although it's rather confusing to sift through the different views, it's good to see so many people adamantly trying to provide credible info. :good:
[G2 General] hkwildboy:
Good to know someone interested in reading source links/references to arrive at thir own sensible conclusion.

Similarly I invite those who disagree or think differently provide source links to backup their claims. It will be more convincing than repeatedly yelling: "Trust me, I know better than all of you"

The following is a more detailed explanation of why shallower depth of field enable more charging cycles

http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

(section re: Table 4)

Most Li-ions are charged to 4.20V/cell and every reduction of 0.10V/cell is said to double cycle life. For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles. If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles; 4.00V/cell should deliver 1,200–2,000 and 3.90V/cell 2,400–4,000 cycles. Table 4 summarizes these results. The values are estimate and depend on the type of li-ion-ion battery.
[G2 General] metalboy94:
You should definitely add, for fans of the strawman argument, that Li-Poly batteries are merely an evolution of Li-Ions, which however behave the same when charging.
[G2 General] hkwildboy:
Good to see someone who doesn't trust a single source.

I urge everyone to google "proper maintenance of lithium ion battery"

and come to their own conclusion.
[G2 General] metalboy94:
I was thanking you for providing a second source because most people do not believe BU on its own. I've known about BU for a few years, which is where I got my charging practices from.
[G2 General] hkwildboy:
Thank you for the good reminder.

http://www.allaboutsymbian.com/features/item/15775_How_do_Lithium_batteries_work.php

Is Lithium Polymer different?

The chances are that if you read this site, you've heard of Lithium Polymer (Li-Polymer) as a distinct battery type from Li-Ion batteries. The difference between them lies in the material used as the separator. Rather than an inert substance with holes covered in electrolyte, the separator is made of a micro-porous polymer covered in an electrolytic gel that also serves as a catalyst that reduces the energy barrier in the chemical reaction between cathode and anode. Therefore, Li-Polymer batteries allow for a slight increase in energy density. However, this advantage is offset by a 10% to 30% cost increase. Therefore, because the same materials are used for cathode and anode, Li-Polymer batteries follow the same chemical process as Li-Ion batteries and so are not a distinct class.
[G2 General] hamad138:
I heard u have to.constantly recharge them, and then they always will be good

Anyway just swap the battery for 50 euro from.lg

https://www.youtube.com/watch?v=DKoYvxWRx6g&feature=youtube_gdata_player

How to change battery
[G2 General] Kreuger:
My best friend runs a battery shop in Toronto and he says otherwise. No offense but I trust him more than any one else on this forum.

My phone beeps in a similar message like I've gotten a text.
[G2 General] Rayan:
I wasn't gonna answer back but heck... lol

I never said replacement batteries don't exist, but that makes your point moot since most of them are not OEM batteries, that is, the original manufacturer does not make a penny out of the sales of those batteries, on contraire, they loose money because some people tend to fix their phones instead of buying a new one!!!

In that line of thinking, it would be like Ford making money out of cheap no-name batteries you buy at Wal-Mart :silly::laugh:
[G2 General] metalboy94:
I did expect you to come back, which is why i was talking about the strawman fallacy.

I believe I already mentioned that, if manufacturers were to warn the users that charging overnight harms the battery, they would effectively cut off a huge source of their profit or their OEM's profit. And the 3rd party brands? Well imagine half of an industry going down. :rolleyes:

And how is that about most batteries not being OEM? :laugh::laugh: no comment needed.
[G2 General] Rayan:
Here goes anyway: OEM = Original Equipment Manufacturer

According to Wikipedia: "An original equipment manufacturer, or OEM, manufactures products or components that are purchased by another company and retailed under that purchasing company's brand name."

Again, put it the other way around: If manufacturers are concealing the fact that continuous charging (there's no thing as "overcharge") damages or reduces the life of the battery, then they are shooting at their own feet and loosing sales of new phones thanks of DYI fixes. Simple as that!

Smartphones life-cycles are meant to be of at least two years (21 months average) and that's why contracts span for up to 2 years. So in any case batteries should last close to that many months.

My previous smartphone (Galaxy Note I) after almost 2 years with me, still kept my charge for maybe a couple of hours less than originally, but it sure was in working condition even when I "overcharged" it every single night (and day)... Sold it for a good profit thanks in part to that. Same goes with my Asus TF-101, my wireless speaker (which is 95% of the time connected to AC so it will be ready to go when I need it)... etc....

Anyhoo... I was just trying to help the OP.

Cheers!
[G2 General] xblackvalorx:
Screw your gay little links. I provided reference to real world use and situations.

These links are like having a benchmark war when every one knows bench marks don't mean crap.

Laptops in best buy always on the charger. Phones in stores. Modems that use backup batteries.

I can list you a million li ion or polymer batteries that operate charging all the time and retain great battery health

The only thing that is bad for your battery, that will actually create any stress is drawing a lot of power while charging.

My sources are experience and observation.

These forums aren't filled with geniuses, links don't mean crap.

I've had android phones since the g1, smart phones long before, I've seen it all, and I know how a phone battery works. Doesn't take a stupid link war.

"I'm going to provide links to stuff from companies trying to sell you stuff they'd never bs or lie"
[G2 General] metalboy94:
Here we go.

Your sources are sh!t. Period. No one gives a damn on your experiences or the phones you had. Go unplug one of the laptops at best buy or one of the phones in your stores and see just how much the battery will last.

No, you can not list a million batteries that charge all the time and retain great health, because they don't exist. The 'gay little links' here are facts, drawn from actual scientific research. Not some goof watching his phone for 3 days then assuming everything's fine and he 'saw it all'.
[G2 General] votinh:
Where would this thread be heading to?

So off-track, guys.
[G2 General] vPro97:
This thread has evolved into some sort of "creationists deny evolution because they believe otherwise and don't care about facts". Guys please stop giving your own charging habits as advice to OP, if he was asking for that, he could very well ask your mom personally how she charges her phone because the answers would be as different and wrong as the ones hope supplying OP with.
[G2 General] hkwildboy:
Thanks for your admitting it. I guess that said it all.

Now everyone can safely bet who to trust. :angel:
[G2 General] robin786:
Good topic turned sour. It's good that we get different sources of knowledge & in the end let the readers decide on their own. The war of words will benefit nobody.

Sent from my LG-D802
[G2 General] Steamer86:
Just don't overheat it often. That is all.
[G2 General] :
whatever you guys say, I love the magic extra hour screentime from charging it past 100%
[G2 General] Cantambre:
Keeping your battery between 40% and 80% kind of defeats the purpose of having great battery life like you have on G2.

Thanks for the advice on avoiding full discharges though.
[G2 General] Fir3blade:
+1

Until the capacity of the battery is decreasing, I am on an other devices since months...

Via LG G2
[G2 General] hkwildboy:
Don't misunderstand. It's a not ritual that you we must or can follow everyday.

But by understanding the physics behind, it will generally help us keep the battery in better health.

Similiar to knowing what constitutes a good diet. It doesn't mean it's possible to have a perfect diet everyday. But for those time we can, let's treat our body better, and so the same for our battery. That's all~~~~:angel:
[G2 General] xblackvalorx:
You know, I typed you a big response, but I deleted it. I'm done. If you argue with stupid people they'll drag you down to their level and beat you with experience.

If you wanna live tied to the wall, best of luck to you genius.
[G2 General] android404:
It costs 10 freaking bucks to replace the "non replacable" battery. Why would anybody follow the dozens of rules day after day after day for a year or two just to save those 10 bucks?
[G2 General] hkwildboy:
I don't anticipate your response and i see no need to argue with you.

I present my facts supported by trackable information. People will come to their own educated sensible conclusion.
[G2 General] beezar:
Not so sure about who is right, but if there is a possibility of damage if you keep the phone on charger after the battery reaches 100%, you may want to get another USB cable (and/or AC charger) for charging overnight. Seems like most non-stock USB cables cause the device to charge much slower, so you won't reach 100% nearly as quickly as a stock cable. That way if you leave it on the charger, it won't be as long at 100% to risk much.
[G2 General] Steamer86:
This thread is stupid. Who buys a phone with an awesome battery to keep it at a 40% use level. Just don't overheat the damn thing a lot.
[G2 General] Rayan:
It's not only the cable, but the amps of the charger that determine the time it takes to charge the phone. However I recommended always use the correct power supply on your devices, cheap off the shelf ones are not always good to use. Same goes for car chargers.

Cheers!
[G2 General] dannejanne:
You don't have to treat the battery in any special way.

The ONLY thing that is VERY important, is to never let it lay for a long time totally discharged. That kills lithium batteries pretty quickly.

Otherwise, charge as frequently as you like. Lithium batteries are happy when they are charged often and frequently. I always leave my phones on charger overnight and have never had any problems. No need to worry. So much misinformation floating around about battery treatment. Just let it go and enjoy the phone and charge it whenever you want, for short periods or full charges. Doesn't matter.
[G2 General] jerverg:
Keep it cool. That's about it. Only problem with batteries now is heat.
[G2 General] robogo1982:
Just don't overheat it too much and avoid fully discharging it and you'll be fine.

For a piece of hardware EVERYONE complains about, I find modern phone batteries to be nothing short of a technological miracle. Especially since I remember NiMh batteries :D
[G2 General] avtemp:
I have Lg G2 and this phone has Li-Pol SIO+ battery.

I don`t recommend to leave phone on charger overnight.

If you want to get more info about your battery, dial 3845#*802# to get to "Hidden menu" -> Battery Test -> Battery Information

Recommended operating voltage for Li-Pol battery is 3,2V - 4,2V.

I discharged my battery to 1% and then plugged it to charger (standard - 1,8A). It took it 2 hours to get full charge.

When Phone at 100% - battery has 4,356V !!!!!! (while being connected to charger another 1,5 hour after it showed 100% and it was still charging at 4mA, battery temperature was 22C).

After that i disconnected phone from charger- 4,317V and it took it 2 hours of idle to drop voltage to 4,255V.

Than i began to use my phone (WIFI AND OPERA BROWSER)

99% battery life - 4,22V (t=22,8C)

90% - 4,083V (t=30C)

80% - 3,960V (t=32,3C)

70% - 3,873V (t=29,2C)

60% - 3,800V (t=32C)

50% - 3,773V (t=29,6C)

40% - 3,740V (t=30C)

When Phone shows you 1% of battery life it corresponds to 3,255V (temperature of battery was 30C)

So,even after 100% battery is still charging to about 110%?

Those 4,3V and above is WAY TOO MUCH.

Yes,it will increase day-performance of your phone, but It also will Decrease number of life cycles of your battery.

"Most Li-ions are charged to 4.20V/cell and every reduction of 0.10V/cell is said to double cycle life.

For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles.

If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles;

4.00V/cell should deliver 1,200–2,000

and 3.90V/cell: 2,400–4,000 cycles.

!!! At 4.35V, the cycle count is cut in half (150-250 cycles) !!! "

So,here is my conclusions: if you want to extend life of your battery (up to 4000 cycles), use it in range: 40%-80% or 3,7V-3,9V.

And don`t forget-high temperature increases voltage (if you charge your battery to 3,9V and place it in hot area voltage will increase to 4V or even higher).

If you need to prolong day-life of your phone-don`t bother to watch Voltage and don`t read this.
[G2 General] Rayan:
Great write-up!

But when I got my LG G2 I left it charging overnight just like any other smartphone I've ever had and will have... No performance degradation at all!

Please remember that even LG G2's batteries (like any other modern battery since the invention of Li-Po and Li-Ion) have a voltage regulator and the required electronics to stop charging when full, so it's OK to leave it charging overnight (and even while using them). I repeat, NOTHING BAD WILL HAPPEN!

Dannejanne pretty much summarized it much better... "The ONLY thing that is VERY important, is to never let it lay for a long time totally discharged. That kills lithium batteries pretty quickly". :good:

A good example of this are Laptops... Millions of people let their laptops plugged in to the wall FOR DAYS (especially so in the offices) and NOTHING BAD HAPPENS... Batteries tend to live for years and years... Degrading slowly but lasting for years nonetheless...

Cheers!