how to drain battery QUICKLY? - Vibrant Q&A, Help & Troubleshooting

I just did the conditioning thing for my battery.
Charged fully, then wiped battery stats, now i have to drain it.
How can i drain it FAST?
i have gps on, bluetooth on wifi on
watching a HQ youtube video while listening to music
why is it that when i dont want my battery to drain it drains fast as hell, but when i want it to drain it feels like an hour from 100 to 99?
how can i make this even faster??

Do a lot of rebooting always kills mine

willsnews said:
Do a lot of rebooting always kills mine
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holy ****, its working every reboot gets like 1% haha
97 more reboots to go

Turn gps on, go outside and actually use it with maps or navigation. Will kill your phone in 1 to 2 hours.

Sdobron said:
Turn gps on, go outside and actually use it with maps or navigation. Will kill your phone in 1 to 2 hours.
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rather not its like 30 degrees outside here in Texas ha
so far, 31 minutes used and went from 100 to 76 an hour or two more, and BAM it'll be good.
I put a live wallpaper on and now its running like hell hahah

Even if you're indoors maps and searching for signal might help knock it down more.

STOP
Deep cycling is really bad for Lithium-ion batteries. I don't know why people keep perpetuating this myth that you should do this after burning a ROM. I blame Team Whiskey et all, etc . . . blah blah (You flashed our ROM now recalibrate your battery)
Lithium-ion batteries do not have a memory, you do not need to deep cycle them like Ni-Cad, doing so seriously shortens the lifespan of the battery. So unless you notice that the readout for the % of battery charge seems very off from reality don't recalibrate. Even if it is off a little, it will fix itself over time as you charge and use your phone. You don't even need to let it drain a lot. Just use it like normal and charge it when ever you get a chance.

T313C0mun1s7 said:
STOP
Deep cycling is really bad for Lithium-ion batteries. I don't know why people keep perpetuating this myth that you should do this after burning a ROM. I blame Team Whiskey et all, etc . . . blah blah (You flashed our ROM now recalibrate your battery)
Lithium-ion batteries do not have a memory, you do not need to deep cycle them like Ni-Cad, doing so seriously shortens the lifespan of the battery. So unless you notice that the readout for the % of battery charge seems very off from reality don't recalibrate. Even if it is off a little, it will fix itself over time as you charge and use your phone. You don't even need to let it drain a lot. Just use it like normal and charge it when ever you get a chance.
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A lot of people r telling me it helped them
Sent from my SGH-T959 using XDA App

xriderx66 said:
A lot of people r telling me it helped them
Sent from my SGH-T959 using XDA App
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Um, just Google search Lithium-ion. Read a little about the battery technology for yourself and you will see why it is very BAD advise to deep cycle your battery. After a little more than a year with Li-Ion the battery will only hold about 70% of the charge it held when it was new. Keep deep cycling and you will shorten that time to about 4-5 months. Then these same people come back here and ***** about how crappy their battery was because it only lasted a few months and they will offer as proof that it was always crappy because they had to recalibrate it a frequently. I alway think the same thing to myself when I here this from people, "dumb ass, you killed it."
Hell, the sales rep at T-mobile tried to tell me this crap when I purchased my phone. I asked her where she got her electrical engineering degree with focus on battery technology from. After the puzzled look settled from her face I told her that the advice she gave was about the worst thing you could do to the battery. She didn't believe me, but I told her to look it up on her fancy Google powered smart phone. After she did that she apologized.

xriderx66 said:
A lot of people r telling me it helped them
Sent from my SGH-T959 using XDA App
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Click to collapse
A lot of people say things they don't understand, don't drain your battery as such, it's not good.

I wont do it... but
I've already pressed wipe battery stats does rat mean it already happened or something? Is there anything I can do to reverse this iif I did it wrone
Sent from my SGH-T959 using XDA App

xriderx66 said:
I wont do it... but
I've already pressed wipe battery stats does rat mean it already happened or something? Is there anything I can do to reverse this iif I did it wrone
Sent from my SGH-T959 using XDA App
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Click to collapse
Wipe battery stats, does not affect the battery, only deletes the stats saved by the OS. It won't make your battery run faster, or better. These are only STATS saved by the system to tell you where your power is going.
Don't go all psycho about the battery issue. get a cheap chinese knokoff battery from ebay with charger (as I did) and just go out with 2 batteries, even with heavy use, 2 batteries should last you all day. (well, with certain roms, Almost all day)

gagb1967 said:
Wipe battery stats, does not affect the battery, only deletes the stats saved by the OS. It won't make your battery run faster, or better. These are only STATS saved by the system to tell you where your power is going.
Don't go all psycho about the battery issue. get a cheap chinese knokoff battery from ebay with charger (as I did) and just go out with 2 batteries, even with heavy use, 2 batteries should last you all day. (well, with certain roms, Almost all day)
Click to expand...
Click to collapse
I am running Axura 2.1 with no changes to the modem or theme and a stock battery. My phone is only about 2 months old but running stock I got about 11-13 hours and now I get 24+ hours when I let it. Normally I just charge it every night anyhow because it does not hurt anything, in fact it is better for the battery.

Nothing uses more power than the touch screen. Keep scrolling pages and your phone will be a hand warmer.
I've noticed deep cycling lithium ion batteries can destroy capacity to almost nothing quickly. Keep a charge on it whenever you can. The internal resistance is so low, you won't ever notice a "memory." Until the chemistry inside has rotted itself out.

dattaway said:
Nothing uses more power than the touch screen. Keep scrolling pages and your phone will be a hand warmer.
I've noticed deep cycling lithium ion batteries can destroy capacity to almost nothing quickly. Keep a charge on it whenever you can. The internal resistance is so low, you won't ever notice a "memory." Until the chemistry inside has rotted itself out.
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Excellent job of putting into layman's terms the endless cycle of the relationship of heat creating the substance on the electrode that increases resistance, which creates more heat in an endless cycle that is the death of batteries.
In lead acid batteries (like your car, motorcycle, or uninterruptible power supply) oxidation on the plates create this internal resistance and it is why car batteries are rated by number of months, like a 72 month battery. It happens to some extent to all rechargeable battery technologies, but in the case of Li-Ion batteries the internal chemistry actually tear them selfs up over time.
Long story short is the two really big enemies of Li-Ion batteries is deep cycling and heat. In fact if they are not vented well, and allow heat to build up, you get the battery fires you may have heard about with the Dell and Apple laptops that used the Sony batteries. There have also been a few phones that have been known for melting down.

Y'know, I would love to see a big sticky in one of these forums about this. Another voice of reason -- Don't deep cycle your battery, don't cycle it unnecessarily and don't worry about calibration. Your phone calibrates itself all the time and the less often your battery spends any time at low charge the longer it'll last.

Thanks guys good thing I didn't go too far before one of you told me not to do this.
Thanks again
Sent from my SGH-T959 using XDA App

Related

[Q] Will an everyday battery charge harm my phone or my battery?

Hello dear members
I'd like to ask if an everyday charge will harm my battery.
It's my first week with my phone, and I can't keep my hands off it
As a result, battery runs out every day!! So I charge it...
Will something happen to the battery?
thanks in advance
This phone has a litium ion battery. They don't have a memory effect but in the first time they need some time to become the full potential. So it doesn't matter if you charge the phone every day.
Sent from my GT-I9100 using XDA App
Thank you so much!!!!
It's a relief
To maintain better battery life it might be a good idea to make sure that u dont fully drain the battery
That shouldn't be a problem the most battery's should have electronic inside to prevent this but I can't guarantee it. You can read also the Wikipedia article about lithium ion batteries it's quite interesting.
Sent from my Nexus S using XDA App
It is better for you to charge daily and often when the battery still has charge and not leave it until the battery is totally flat.
Thanks so much everyone Point taken
I'll never let it fall under 10%.
Well, Battery is average. If it weren't for the 2.3.3 bug, it would rock! In order for it to be normal, I keep ****ting Services.(under Services menu) like Voice talk, SocialHub(which drains a lot of battery) etc
Anyways, thanks to everyone
Sleepycat3 said:
It is better for you to charge daily and often when the battery still has charge and not leave it until the battery is totally flat.
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Isn't it actually opposite, I mean somewhere I heard that if a Full charge is given after a Full drain then the battery gets conditioned (optimized I think), can't remember the source but I do remember the fact.
Sleepycat3 said:
It is better for you to charge daily and often when the battery still has charge and not leave it until the battery is totally flat.
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Click to collapse
I'm glad this thread exists. I'm so used to running a battery down to the minimum before charging it that I probably would have been in that habit for my SGS2. I'd actually come here to ask the same question now I've been through my first four or five "full" -> "red" -> "charge to full while off" cycles.
Is it confirmed both from the SGS2 & LION technology point of view to now keep it charged up, even if using only half/quarter charges etc to do so?
My battery is giving me around 40 hours a time so not too bad but I'd like to keep it running as well as I can.......
ithehappy said:
Isn't it actually opposite, I mean somewhere I heard that if a Full charge is given after a Full drain then the battery gets conditioned (optimized I think), can't remember the source but I do remember the fact.
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Nope. Li-ion batteries these days prefer constant top-ups and full drain actually kills it faster. Totally opposite of what people have been taught over years of NiCD battery use that I've got friends who absolutely refuse to charge their iPhones unless it's at 10% or less. Their loss.
ithehappy said:
Isn't it actually opposite, I mean somewhere I heard that if a Full charge is given after a Full drain then the battery gets conditioned (optimized I think), can't remember the source but I do remember the fact.
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No that's only good to do once in a while. Full discharges daily put stress on the cells and wear out li ion batteries quicker.
CarpathianUK said:
I'm glad this thread exists. I'm so used to running a battery down to the minimum before charging it that I probably would have been in that habit for my SGS2. I'd actually come here to ask the same question now I've been through my first four or five "full" -> "red" -> "charge to full while off" cycles.
Is it confirmed both from the SGS2 & LION technology point of view to now keep it charged up, even if using only half/quarter charges etc to do so?
My battery is giving me around 40 hours a time so not too bad but I'd like to keep it running as well as I can.......
Click to expand...
Click to collapse
Yes it's common for all lithium ion batteries to charge as often as possible. Its true for all phones on the market today and quite a lot of discussion on this is all around the web.
Also a replacement stock battery for any cell phone today is around 20 dollars, so really you can't do much wrong since its so cheap to buy a new OEM battery replacement.
Thanks for the replies. I think this will catch a few people out so hope the thread doesn't get missed amongst all the other battery ones!
Looks like I'd better change my charging habits!

Do we need to "condition" the battery?

I've heard several different opinions on this. Condition or not to Condition the battery.
Do we need to condition this thing?
How are you doing it?
What kind of results are you getting?
Thanks in advance.
Matt
Li-ion
The battery is lithium Ion so you really shouldn't have to from my understanding.
People do even tho is not necessary, for some reason I don't but after a few day battery has gotten better
Sent from my SGH-T999 using Tapatalk 2
I mentioned this earlier -- I know it's a li ion that shouldn't need conditioning but when I first got mine my battery life was absolutely horrible. I went through two full discharge/recharge cycles and it seems to be much better now.
Currently 11 hours on battery, 50 minutes screen on, played a couple of games, downloaded a couple of apps, 15 minutes of voice calls, and battery is at 80%.
The way it was when I first got it, I'd probably be at 40 or 50% right now, if not even lower.
I'm also running juice defender and have stopped using the gmail app because you can't set the sync interval on it. Instead I've been using the built in email app and have it set to sync every 30 minutes. Not sure if any of this is doing anything but my battery life is definitely better than when I first got the phone. At first it was so bad that I came very close to just returning the phone.
BonesHopkins said:
I mentioned this earlier -- I know it's a li ion that shouldn't need conditioning but when I first got mine my battery life was absolutely horrible. I went through two full discharge/recharge cycles and it seems to be much better now.
Currently 11 hours on battery, 50 minutes screen on, played a couple of games, downloaded a couple of apps, 15 minutes of voice calls, and battery is at 80%.
The way it was when I first got it, I'd probably be at 40 or 50% right now, if not even lower.
I'm also running juice defender and have stopped using the gmail app because you can't set the sync interval on it. Instead I've been using the built in email app and have it set to sync every 30 minutes. Not sure if any of this is doing anything but my battery life is definitely better than when I first got the phone. At first it was so bad that I came very close to just returning the phone.
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That's true for me as well now that you mentioned it. First day, I got about 4 1/2 hours with it before i was down to 10%. I was shocked! Each day it has gotten a little better. Over the last 36 hours it has last a full days before a charge. It doesn't really make much sense to me that they are li-ion which shouldn't need conditioned but it seems that we do need to do this. A friend suggested I condition it when I got it and before I started heavily using it, I guess he was right.
Li-ion batteries don't need conditioned. Any signs of conditioning you see may be some sort of conditioning/learning of the OS.
Sent from my SPH-L710 using Tapatalk 2
mlin said:
Li-ion batteries don't need conditioned. Any signs of conditioning you see may be some sort of conditioning/learning of the OS.
Sent from my SPH-L710 using Tapatalk 2
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What he said.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries/
BonesHopkins said:
Currently 11 hours on battery, 50 minutes screen on, played a couple of games, downloaded a couple of apps, 15 minutes of voice calls, and battery is at 80%.
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Click to collapse
See this kinda stuff freaks me out. I had one decent charge so far, had the phone a week, have been doing full discharge/charge the whole time. Sitting at 38% right now on 16 hours, about half of that was asleep with power save on (its been dropping 20-30% overnight) and only 48 minutes screen time. I dunno how long it should take to improve but it seems like its not taking this long for anyone else.
erikk said:
What he said.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries/
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What they said.
This is a very informative site. I've quoted it's recommendations concerning the circuit in the battery that needs calibration before......
here's the link to that page there.....
http://batteryuniversity.com/learn/article/battery_calibration
codo27 said:
See this kinda stuff freaks me out. I had one decent charge so far, had the phone a week, have been doing full discharge/charge the whole time. Sitting at 38% right now on 16 hours, about half of that was asleep with power save on (its been dropping 20-30% overnight) and only 48 minutes screen time. I dunno how long it should take to improve but it seems like its not taking this long for anyone else.
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How long do you usually sleep for???
Seriously though, 20 - 30% overnight sounds like a lot. I tested mine and it dropped about 8% in roughly 7 hours of zero use while I was sleeping. I think even that is a little excessive but I can live with it.
Have you tried running something like Juice Defender? It seems to have made a difference with mine. When I got my S3 last week it was about the same as yours. I did a couple of complete discharge/charge cycles, installed juice defender, and have been going into the task manager and app manager and turning off all the crap that doesn't turn off automatically. It has made a difference.
Oh, and I also did the APN trick to disable LTE. Not sure if that has made any difference but with everything combined the battery seems to be doing a lot better than it was at first.
Don't "they" say that you should not use task managers as they don't work well with the phones? I'm no expert here, so don't quote me, but my understanding is that the One S and Siii owe a lot of their excellent battery lives to their own internal task managing.
Correct me if I'm wrong here.
ickster said:
Don't "they" say that you should not use task managers as they don't work well with the phones? I'm no expert here, so don't quote me, but my understanding is that the One S and Siii owe a lot of their excellent battery lives to their own internal task managing.
Correct me if I'm wrong here.
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The internal task managing is the reason you shouldn't use 3rd part task managers. That's the whole point. Android has done this since 2.0
Having said that, there's nothing inherently wrong with killing a task that is misbehaving... most things that say not to use task managers really mean to not (a) turn on auto task-killing, or (b) kill tasks across the board, albeit manually, under the false impression that freeing up RAM is a good thing.
When you guys say full discharge do you mean draining the battery till it shuts off or going down to 10%, I was under the impression that fully discharging would harm the battery.
MCKang25 said:
When you guys say full discharge do you mean draining the battery till it shuts off or going down to 10%, I was under the impression that fully discharging would harm the battery.
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I discharged it till zero. Then I turned the phone on and let it shut off again. I did this until the phone wouldn't even try to turn on any more.
BonesHopkins said:
I discharged it till zero. Then I turned the phone on and let it shut off again. I did this until the phone wouldn't even try to turn on any more.
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Doing this enough times has the potential to damage your battery. Leaving it at 2% - 5% will not make a difference in the "calibration" compared to completely killing the battery.
Killing the battery may work for you, but I want others to be aware of the potential of damaging the battery.
Just my 2cents for the day.
Here. Is a link to battery charging for Li-ion. I have another site that is great in explaining these things. I have a couple of R/C trucks and this info is great to know and have. The same applies. To our phones charge rates. I would hope that when a dev makes up or mods a kernel that they have a basic knowledge of charge rates and the rest of the equations. Foe our batteries this is literally. Life and death. It could also cause a phone to burst into flames. Especially. If we use after market batteries that have poor protection circuitry in them.
I will find the other link later and post it up here to give a possible better understanding of these things. But, try not to rely on me as I tend to forget things a lot. Car accidents will do that to you when you crush your skull. Any way, GIYF.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Sent from my Xoom using XDA
You basically only need to do the "calibration" once. And the phone has limits set that will neither undercharge nor overcharge them.
edit I think heat is your batteries worst enemy.
BonesHopkins said:
I discharged it till zero. Then I turned the phone on and let it shut off again. I did this until the phone wouldn't even try to turn on any more.
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Click to collapse
This is the WORST thing you can do to a Li-Ion battery. I mean literally you can lose 10% of its life from doing this or even cause the battery to stop charging at all.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Li-ion should never be discharged too low, and there are several safeguards to prevent this from happening. The equipment cuts off when the battery discharges to about 3.0V/cell, stopping the current flow. If the discharge continues to about 2.70V/cell or lower, the battery’s protection circuit puts the battery into a sleep mode. This renders the pack unserviceable and a recharge with most chargers is not possible. To prevent a battery from falling asleep, apply a partial charge before a long storage period.
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Seriously everyone should spend a couple hours on that site at some point. Half the information will probably be way over your head (or at least it was mine) but there's enough good information that even half of it is definitely worth learning.
Here is the other site that I was talking about. Though it is for R/C battery packs it should still grant a measure of understanding to the workings of these batteries.
http://www.rchelicopterfun.com/rc-lipo-batteries.html
Sent from my Xoom using XDA
BonesHopkins said:
I discharged it till zero. Then I turned the phone on and let it shut off again. I did this until the phone wouldn't even try to turn on any more.
Click to expand...
Click to collapse
Take into account though. These batteries have circuitry. Built into them to prevent you from truly discharging. It all the way. That doesn't mean that it can not discharge all the way. Things like humidity can play its roll in taking a Li-ion or Lipo battery past the kill zone point. If you know that you will not be using the battery for a good period of time or it is strictly an in case of an emergency battery. Place it into a plastic bag and suck out all of the air that you can and seal it. A zip lock bag works best. Place it in the refrigerator or freezer. There is very little moisture. In there. And what ever moisture makes its way in when you open the fridge. Or freezer will not have time to get into the zip lock bag. The lack of moisture slows the discharge process down especially in the summer. Also the chilling of the battery's chemical. Compounds slows the molecular interactions down. Its a helpful two fold process.
Sent from my Xoom using XDA

Calibrating battery question

OK so to calibrate my new battery charge to full unplug then use till it dies then recharge to full and that's it? Is one cycle enough?
Thanks
Sent from my SCH-I605 using Tapatalk 2
there is no calibrating requirement for lithium ion batteries...
Not sure if it is good to let it die. I was told on the gnex that running it till it dies was not good for thag type of battery? Maybe someone with more knowledge can clarify that.
Travisdroidx2 said:
Not sure if it is good to let it die. I was told on the gnex that running it till it dies was not good for thag type of battery? Maybe someone with more knowledge can clarify that.
Click to expand...
Click to collapse
No adverse effect.
Sent from my SCH-I605 using Tapatalk 2
Actually you are not supposed to let them drain completely..
http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/289
I know this is slightly a different question. My issue is after you flash a new rom it seems the % is not entirely accurate. It will act fine for a while and then when u get to like less then 10% it drops dramatically like it wasnt reading it correctly or just like today I turned the phone off and did a reboot at 96% and when it powered on it was at 92% which is quite a bit of time on the note 2.
How do you get your battery reading accurate again after you have flashed a new rom? This has happened with my Bionic in the past as well. Thanks.
Sent from my SCH-I605 using xda app-developers app
nunyazz said:
Actually you are not supposed to let them drain completely..
http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/289
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Correct, it is bad to deep discharge Lithium Ion batteries.
INCREMENTAL said:
I know this is slightly a different question. My issue is after you flash a new rom it seems the % is not entirely accurate. It will act fine for a while and then when u get to like less then 10% it drops dramatically like it wasnt reading it correctly or just like today I turned the phone off and did a reboot at 96% and when it powered on it was at 92% which is quite a bit of time on the note 2.
How do you get your battery reading accurate again after you have flashed a new rom? This has happened with my Bionic in the past as well. Thanks.
Click to expand...
Click to collapse
100-90% can vary depending on when you take it off of the charger. Basically, once the battery hits 100% on the charger, it will start slowly discharging itself to avoid damage. Once it get below a certain threshold, it will charge back up to capacity again.
Regarding rebooting, that process is fairly system intensive and it is natural to lose some battery life. In addition, prior to the reboot the OS is calculating a rough estimate of the percentage left partially based on previous use. So for example, if your phone was in deep sleep for hours, then you reboot where the CPU ramps up significantly, the percentage will alter to more accurately reflect the charge left in the battery.
In short, there is never a need to "calibrate" a battery, the OS will sort it out itself even after flashing different ROMs and it can take a couple days for kernels to settle.

[Q] Stay on charger or drain?

Hey guys
On the weekends I'm usually home and I do use my phone quite a bit..but I'm mostly sitting at my computer doing so.
Is it better for me to keep the phone plugged in or should I be letting it drain? I heard that large drain cycles are not good for the battery and will wear it out faster...I've learnt that with my original Samsung battery...I have an extended one, now.
I've searched around...some people say one thing, others say the opposite...so what's the deal, really?
Thanks,
Elliott
The battery is desinged to be drained, you can always use your device plugged in when you are about to run outta juice.
Sent from the little guy
Right...but if I'm going to be texting constantly on the phone...is it better to just leave the phone on charge while I'm using it, or keep draining it/charging it back up?
As I said, use it.
If battery is low, just charge it while you do.
Sent from the little guy
Thanks.
Anyone else have any info on this?
Elliott
Bump
There was an article on XDA a while ago about the battery in mobile phones.
http://forum.xda-developers.com/showthread.php?t=1168036
Summary:
It doesnt matter if you keep it plugged in or not. It will do no damage to it.
What you shouldn't do with this kind of battery is draining it to 0% like some people suggest. In fact it is better to keep it charged above 40% to maximize the lifetime of your battery.
Here is also an other thread about it.
http://forum.xda-developers.com/showthread.php?t=1914417
Thanks for the threads.
The first and 2nd threads you posted through, seem to contradict each other.
The first thread said
Hence constantly recharging a lithium ion battery does not shorten the battery life more than normal usage would. Avoid letting it sit on empty for too long; instead, keep it charged-up if you can.
Click to expand...
Click to collapse
The second thread said:
Avoid keeping your battery at 100%: Every source I referenced for this guide said the same thing about keeping your battery at a full capacity, but oranageinks.com explains [...]
Click to expand...
Click to collapse
lol, we gotta get a lithium battery Ph.D here
I never let my battery die on me, I only do it once to get rid of fuel gauge (although some say that it fixs it on it own after three days or so) whenever I flash a new ROM.
I always let it frain to 15 % or something like that.
Starholdest said:
Thanks for the threads.
The first and 2nd threads you posted through, seem to contradict each other.
The first thread said
The second thread said:
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Click to collapse
It doesnt really contradict each other. They warn you about heat that is bad for your battery when charged to 100%. Keeping your phone at 100% in a hot enviroment does more damage then having it at 40% in the same enviroment. The same applies to running an app that keeps your cpu running constantly thus heating up your phone.. But in normal circumstances it shouldnt do harm.
It sounds like someone is obsessed about their battery not being at 100% all the time.
Charging and discharging your battery shortens it's life. This is the way it was designed.
Chill, it's just a phone, not an artificial heart
Sent from my digital submersible hovercraft.
Lennyz1988 said:
It doesnt really contradict each other. They warn you about heat that is bad for your battery when charged to 100%. Keeping your phone at 100% in a hot enviroment does more damage then having it at 40% in the same enviroment. The same applies to running an app that keeps your cpu running constantly thus heating up your phone.. But in normal circumstances it shouldnt do harm.
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Click to collapse
Well I think they clearly contradict each other...one says to keep your battery charged up, the other says not to keep it at 100%...
I understand about the heat degrading batteries...but that's another discussion completely.
Anyone else have any opinion?
f-r said:
It sounds like someone is obsessed about their battery not being at 100% all the time.
Charging and discharging your battery shortens it's life. This is the way it was designed.
Chill, it's just a phone, not an artificial heart
Sent from my digital submersible hovercraft.
Click to expand...
Click to collapse
I wouldn't call myself obsessed...I'm just wondering if leaving it plugged in for a good portion of the day will reduce it's life. Because I did that with my original Samsung battery and it's barely usable for me now...just wondering if leaving it plugged in for long periods of time diminished it's life over a year and a half.
I think batteries don't like to be plugged all the time.
For what i've read in the last 4 years nobody knows exactly what's good and what's not for them.
You be the judge.
Sent from the little guy

45 minutes battery life

My Galaxy S II (and pretty much any Android evice I've picked up) has a usable battery life of 45 minutes. I unplug the phone at 9 A.M. in the morning after charging it to 100%. By 12 in the afternoon I would have browsed the Internet, checked social apps and played a few rounds of a game for what feels like 45 minutes in total. By then the battery is at 30% and I have to put it away in fear of it dying before I get home. The phone is useless for the rest of the day. My iPhone 4 with its 3 year old battery lasts 2 days like this.
No wakelocks, 99% deep sleep. I have a 3200mAh battery which feels like it lasts 1.5 hours before I have to put it away in fear. Basically the phone is not usable at all due to the user being in constant fear of the battery dying.
If I don't use the phone at all it's down to 20% by the end of the day with no wakelocks and 99% deep sleep. If I don't use my iPhone 4 with its 3 year old battery, it still lasts 20 days.
KurianOfBorg said:
My Galaxy S II (and pretty much any Android evice I've picked up) has a usable battery life of 45 minutes. I unplug the phone at 9 A.M. in the morning after charging it to 100%. By 12 in the afternoon I would have browsed the Internet, checked social apps and played a few rounds of a game for what feels like 45 minutes in total. By then the battery is at 30% and I have to put it away in fear of it dying before I get home. The phone is useless for the rest of the day. My iPhone 4 with its 3 year old battery lasts 2 days like this.
No wakelocks, 99% deep sleep. I have a 3200mAh battery which feels like it lasts 1.5 hours before I have to put it away in fear.
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Well, or you buy a new battery for the S2 or you keep going with your "stylish" i phone. The world is not complicated and phones are not rocket science.
And by the way, games drain battery hard, very hard.
Charge at work, upgrade the battery or stick with your iPhone.
I tip my hat to you and wish you a good day.
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Mine lasts up to 2-3 days with little usage.
Sent from...this is not even my S2
Edvin73 said:
Well, or you buy a new battery for the S2 or you keep going with your "stylish" i phone. The world is not complicated and phones are not rocket science.
And by the way, games drain battery hard, very hard.
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Like I stated, I have a newish 3200mAh battery which is safe to use for 1.5 hours before you have to put the phone away so it lasts the rest of the day.
KurianOfBorg said:
Like I stated, I have a newish 3200mAh battery which is safe to use for 1.5 hours before you have to put the phone away so it lasts the rest of the day.
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I hope you checked with BBS, if so and as you said "99% of deep sleep", it means that the games are draining your battery.Well, sometimes even a "newish" battery can be faulty.Try with different battery,I mean a good one for sure.And if your results are the same, stop playing those freakin' games.
mckeowngoo said:
Charge at work, upgrade the battery or stick with your iPhone.
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I do. The battery actually drains while charging if I'm using the phone.
Edvin73 said:
I hope you checked with BBS, if so and as you said "99% of deep sleep", it means that the games are draining your battery.Well, sometimes even a "newish" battery can be faulty.Try with different battery,I mean a good one for sure.And if your results are the same, stop playing those freakin' games.
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Yes I use BBS and have completely disabled all bloatware using Autostarts. I have the original battery and the Mugen Power 3200mAh battery. The battery life is proportional to with the capacity of the batteries I've used.
The primary use of my phone is mobile gaming. I don't care about the phone part except for receiving push notifications for email, IMs etc. which I then reply to on the PC anyway.
My SG2 and pretty much every Android device I pick up has 45 minutes of battery... Either you have won the lottery and got a defect phone several times or there is something fishy going on..
My sg3 lasted for 24 hours, my s4 last for a couple of days, my motorola razr lasted a week and my iphone 4 went for a day and sometimes 24 hours..
Even if I stress test my sg4 and s3 all the time it would last for a lot loooonger than 45 minutes..
I know the games will use a lot of juice but 45 minutes? Something is wrong...
What kind of games are we talking about? I do not play so much myself, just online poker, some tetris and so on, my iphone and android phones is pretty similar when talking about these games...
You could go for a Nintendo Game Boy etc
That said I taught ICS used less battery than JB. And it's pretty weird if you have the mugen battery. My Razer had a 3300 battery and that would go for days, even with heavy usage.
Sent from my Samsung Mobile and xda-Premium...
mr.lysgaard said:
My SG2 and pretty much every Android device I pick up has 45 minutes of battery... Either you have won the lottery and got a defect phone several times or there is something fishy going on..
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I've extensively used the Galaxy S, Galaxy S II, Galaxy Note, Nexus One, Nexus S. All of them can be used heavily (3G, gaming) for just 45-60 minutes before the battery is low and you have to save it for the rest of the day.
Simply listening to music for 2 hours in the gym drains 35% battery! WTF? This is without any equaliser and while using an external headphone amplifier. I could listen to music for 2-3 hours a day for 1 week on my old iPod touch before needing to charge it.
mr.lysgaard said:
What kind of games are we talking about?
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I'm currently grinding in Punch Quest.
mr.lysgaard said:
You could go for a Nintendo Game Boy etc
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Those currently suck. No more AAA games like the PSP had.
mr.lysgaard said:
That said I taught ICS used less battery than JB. And it's pretty weird if you have the mugen battery. My Razer had a 3300 battery and that would go for days, even with heavy usage.
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With zero usage and I mean barely switching on the screen once or twice to check the time, my 3200mAh Mugen battery is at 55% by evening. No wakelock, full deep sleep. The original battery will be below 20% or dead with zero usage.
KurianOfBorg said:
With zero usage and I mean barely switching on the screen once or twice to check the time, my 3200mAh Mugen battery is at 55% by evening. No wakelock, full deep sleep. The original battery will be below 20% or dead with zero usage.
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Maybe you usually install a battery discharger app?
Never had such behaviour.
bernie279 said:
Maybe you usually install a battery discharger app?
Never had such behaviour.
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If I enable Aeroplane mode it's still at 99% after a day.
KurianOfBorg said:
I do. The battery actually drains while charging if I'm using the phone.
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Possibly a crap battery, but im going to suggest you don't use the samsung charger. The phone holds a wakelock whilst charging, keeping the phone running at 200Mhz, so unless you are delivering 650mA, your phone will die. Therefore I suggest you are using an unofficial charger, which doesn't deliver the needed 650mA, or you have an unofficial battery which wont accept 650mA. Either way, if you're not using Samsung appliances you shouldn't really be complaining about crap battery.
Sent from my GT-I9100 using xda app-developers app
TheReverend210 said:
Possibly a crap battery, but im going to suggest you don't use the samsung charger. The phone holds a wakelock whilst charging, keeping the phone running at 200Mhz, so unless you are delivering 650mA, your phone will die. Therefore I suggest you are using an unofficial charger, which doesn't deliver the needed 650mA, or you have an unofficial battery which wont accept 650mA. Either way, if you're not using Samsung appliances you shouldn't really be complaining about crap battery.
Sent from my GT-I9100 using xda app-developers app
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I am using the original Samsung charger and the original Samsung battery. I have an additional 3200mAh Mugen Power battery.
It drains faster than the charge rate only if I'm playing games.
Could be many things then, but as you say BBS doesnt report wakelocks, it would all just be conjecture. Try and pull a logcat after an hour or so of deepsleep and see if you notice anything untoward. Also, have you done simple things like turn WiFi off when you're not using it? That scans every 15 seconds or something. Or if you're in a crap phone signal area, your phone will keep scanning for and trying to connect to a better signal.
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TheReverend210 said:
Or if you're in a crap phone signal area, your phone will keep scanning for and trying to connect to a better signal.
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It's the phone obviously. Like I said if I put it in Aeroplane mode than the battery is still at 99% at the end of the day. If it's in normal mode it drains severely. I don't have this problem on any other phone. I've flashed the latest modem for my region and tried older modems for my region as well.
Not sure but it sounds like you have technical issues with your phone.
I have the official Samsung uprated battery and I loose about 60% out of the phone battery a day with heavy usage. Usually doesn't get to that point as I charge at work or home when not in use.
I take it as a given that all smart phones, tablets or laptops have ****e battery life.
Blanket generalisations about specific OS' or brands being superior to others is just silliness.
Saying that, when it comes to battery life, my HP Touchpad running CM 10.1 pisses all over any iOS device and the ghost of Steve Jobs agrees with me!
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mckeowngoo said:
I have the official Samsung uprated battery and I loose about 60% out of the phone battery a day with heavy usage.
...
I take it as a given that all smart phones, tablets or laptops have ****e battery life.
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60% at the end of the day is a joke. It's unacceptable. Without use My iPhone 4 is at 95% at the end of the day with everything switched on and every possible syncing enabled. Why is it so hard for Samsung to produce a properly working phone after 5 years? I am 100% sure their latest phones like the Galaxy S 4 behave exactly the same way no matter what PR bull**** they try to spin.
KurianOfBorg said:
60% at the end of the day is a joke. It's unacceptable. Without use My iPhone 4 is at 95% at the end of the day with everything switched on and every possible syncing enabled. Why is it so hard for Samsung to produce a properly working phone after 5 years? I am 100% sure their latest phones like the Galaxy S 4 behave exactly the same way no matter what PR bull**** they try to spin.
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Seems the iPhone is the device meant for you, for me in normal usage it lasts 2 and a half days altogether with the stock battery, heavy usage like a gameplay of Gamelofts Modern Combat series or N.O.V.A gives me 3 hours of continuous play after which the battery reaches around 7-10%, wifi in JB sadly kills my battery only gets around 6 hour's with continuous usage which was greater in my GB and ICS days.
But 95% at the end of the day for the iPhone 4 with everything ON is a bit of an exaggeration(the hell kind of unremovable battery is that?) don't you think?
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king_below_my_lord said:
But 95% at the end of the day for the iPhone 4 with everything ON is a bit of an exaggeration(the hell kind of unremovable battery is that?) don't you think?
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Everything on with no use. Thats the drain in standby. My SGS2 drains whether I use it or not with everything on. In aeroplane mode, it stays at 99% without use.

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