I was on here trying to find a way to reset my battery's memory...and I found it! Its so easy. So during the day, drain your battery to 20%, and plug it in all night. When you wake up, take off the back, and take out the battery for 3-4 minutes. Then, put the battery in the phone and turn it on. As it's turning on, plug in the charger. Leave the charger in until the phone says "charged" or has the battery icon showing full. Unplug your charger, and say Hi to a factory battery.
AT&T Samsung Galaxy S III
2% in 17 minutes....this is phenomenal... at least for me.
AT&T Samsung Galaxy S III
It is just an overcharged battery...
Sent from my SGH-T999V using xda app-developers app
What do you mean?
AT&T Samsung Galaxy S III
my understanding is that the battery is never really charged to 100% (even if you see 100% charged in the software).
it is a way to prevent overcharging the battery (because on the long run, it is decreasing the battery life and performance)
So, what you are doing is that you found a way for overcharging the battery and the result is that the battery life for the first 100 to 98 will be very good, however it will go back to normal after this step.
Correct me If I'm wrong, but I'm pretty sure that I'm right
Nah, its completely better...
AT&T Samsung Galaxy S III
Lol....you'll have to show more proof than that, even if youre phone confirms what you said.
Matrix is right, I think this is in your head. Placebo effect as its known.
show us screen shots of batterry useage for a week with this technique, then a week with out.
Then others will have to try it out.
Hey if your smart enough (since again your NOT doing anything physically, trust me ) you could write a a little script and make it an app?
Also its been said the battery gauge is really kind of a pasifier for us.
Physicaly there is no way you are changing the state of the battery by just touching the contacts real fast.
UNLESS your batter contacts are totally fried/or oxidized and somehow the friction has cleaned them???
If any thing, you are resetting the battery statistics/calibration and that ( confirmed by google, and a few a manufacturers)
does nothing.
One thing about batteries; the harder you work them the shorter they live, this is why Samsung,htc even apple said the batteries don't fully charge 100%, because if they did the batteries wouldnt last half as long.
But hey keep working on it maybe you got something there! :good:
and just for yucks
Your phone never charges all the way to prevent over charging and help keep your battery healthy for a longer period of time. Some kernels allow you to change this hidden setting from 98% to 100%.
All you are doing is circumventing the system and potentially harming your battery. And unless you keep doing this for every charge cycle it will return to normal.
You may be experiencing a placebo effect because your battery stats have changed based on the over charge. The battery stats data is used to guage your battery life.. This is updated for every cycle and will eventually return to normal on its own.
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J2DAe said:
Good job man. Don't listen to these haters. All they do is complain and shoot everyone down when they have a good idea. So **** em
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
We're not "complaining" we're simply correcting the statement. Its for the users own good. Don't be drama.
Sent from my SGH-I747M using xda app-developers app
Related
Does the battery go to 99% for you guys instantly? seems like mine does, as soon as i unplug it goes to 99%, just wondering if its normal or just my phone, because on my galaxy s II i would get like 30 minutes of no drain, like it would stay at 100 for a while, while this phone is like as soon as i unplug the battery is already down to 99.
unleashed12 said:
Does the battery go to 99% for you guys instantly? seems like mine does, as soon as i unplug it goes to 99%, just wondering if its normal or just my phone, because on my galaxy s II i would get like 30 minutes of no drain, like it would stay at 100 for a while, while this phone is like as soon as i unplug the battery is already down to 99.
Click to expand...
Click to collapse
Calibrate it
Mine stays on 100% for a good half an hour or so too
what is the easiest way to calibrate it? any links.. my GNEX will go 99% instantly too but overall battery drain is awesome
my battery life is TERRIBLE on this thing, it drains like crazy.. i want to calibrate it super badly but im not rooted, so i cant delete batt stats.bin , i even let it drain last night completely charged it again while it was off..still same terrible battery life. its a shame because i really really love this phone.
hiohokaybye said:
Calibrate it
Mine stays on 100% for a good half an hour or so too
Click to expand...
Click to collapse
I'm sorry but that sounds like badly calibrated battery. Lithium-ion Batteries are -never- 100% except for a very brief moment.
It is natural that your phone displays 97%-99% when unplugged (or even when still plugged in). Batteries protect themselves like this, because these batteries cannot be charged while they are full, they will stop charging the very moment you hit 100%.
Generally you don't want your battery to be above 90% for a extended amount of time, that much voltage/capacity speeds up the degradation of the cells. So actually you should be happy, because your battery will have a longer life.
Sent from my Galaxy Nexus using XDA App
Smokeey said:
Generally you don't want your battery to be above 90% for a extended amount of time, that much voltage/capacity speeds up the degradation of the cells. So actually you should be happy, because your battery will have a longer life.
Sent from my Galaxy Nexus using XDA App
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Click to collapse
Where are you getting this from? Doesn't make sense.
toonlight said:
Where are you getting this from? Doesn't make sense.
Click to expand...
Click to collapse
He's technically correct. LiIon batteries are happiest around 60-70% charge level. However given that your actively using a cell phone battery and your not storing it at high charge its OK.
If you really want to learn more about Lithium tech I can link you to a forum where people are VERY serious about this stuff and use them for high powered lights.
This is a known design "feature."
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
Sent from my Galaxy Nexus using xda premium
I just got my nexus today and was wondering if this was good battery life for the first days use and when it will start getting better?
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This is the screenshot.
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Just about. I usually get 7hrs.
Sent from my Galaxy Nexus using XDA App
Thats a drastic drop! Id say about normal as well. Did you have a lot of apps that were re downloading from the time you first activated it. After a few days to a week when your done looking at your phone every 5 secs you'll start to see battery improvement haha.
Tonight will be my 3rd time charging it. WIll it get a lot better tomorrow?
ProTip: Put the phone down every once in a while and enjoy life.
That's normal if ur 4g on
Sent from my Galaxy Nexus using XDA App
It can take 4-5 charge cycles for the battery to really get worked in.
Also, check out the juice defender plus app. Doubled my battery life.
Sent from my Galaxy Nexus using XDA App
Lithium Ion cells do not get better in any way after a few charges.
In fact the capacity goes down a wee tiny little bit with each and every charge, so your first charge was the "best" one.
Stop playing around with the thing for 5 hours non stop and you will get decent runtime.
Best thing to do with a new device is to charge it up fully as soon as you can. Then run it down until you get the low battery warning. Then charge it back up.
Battery life will likely be pretty poor for the first week or so, then it will normalize.
Deep discharging (to 0%) is about the worst thing you can do to a LiIon battery, because it "hurts" it much more than several shallow discharges.
Also, like I said before, battery capacity won't in any way rise or "normalize" over the first week.
Battery life is poor the first days because you use your shiny new device all the time (i.e. more than later). It's like that for all of us.
My battery life sucked the first few days, It got better though. It really only seems to suck it down if it is hunting for a signal constantly.
Sent from my Galaxy Nexus using XDA App
If you are using your phone a laptop replacement and are surfing the web constantly, expect it to die like a laptop.
Sent from my Galaxy Nexus Revolution
You also need to try this manual battery calibration:
http://myhtcdesire.com/tutorials/how-to-improve-your-battery-life-calibration-tutorial
After I did this, saw the battery reading 99% and 98% more often rather than straight to 96% after charged.
Originally, it was suggested by HTC tech support. I did that once every six months or so ... And my battery level is now improved. Screenshots will follow in the next post.
Not bad?
Sync is off btw. And this includes using Maps 2%.
At least with my usage pattern, I am more or less satisfied.
I wish Google fixes the high Android OS Keep awake time!
Sent from my Galaxy Nexus using xda premium
cvbcbcmv said:
You need to remember the only thing relating to battery life is not just the battery, it's software as well, hence calibration. After about a week or so your phone gets a "feel" for your battery and gets more battery stats, so it's more accurate with it's readings. That is a proven fact, you need to think about all things.
Click to expand...
Click to collapse
It is quite easy to gauge a Lithium Ion battery. 4.20 V = full. 3.60 V = empty. Your phone can read the battery precise to 0.001 V. The curve isn't linear, but it's well known what voltage relates to the exact capacity left in the battery.
There's really no room to "feel" anything there, just simple math.
Smokeey said:
ProTip: Put the phone down every once in a while and enjoy life.
Click to expand...
Click to collapse
+1
I consistently get 15-18 hours of use out of mine with the extended battery.
But to the OP, if your screen is taking up 60% of your battery, it's always on, your battery is gonna die, it happens. Your battery doesn't get "better" with time. It seems that way because you aren't glued to the device 24/7.
Mine was god awful when I first got it but after a week or so it got much, much better.
I have the GSM version though.
60% screen time gawt damn! Did you talk to anyone that day?
falconeight said:
60% screen time gawt damn! Did you talk to anyone that day?
Click to expand...
Click to collapse
Google need to run classes on how to read the battery consumption pages. 61% screen means that the screen used 61% of the total battery used, not that the screen was on 61% of the time.
Sent from my Galaxy Nexus using Tapatalk
I charged my phone overnight and when I woke up the LED was blue but I didnt check the % because i was rushed. When I got to school, the % was 25. now it is going away fast... Really odd, will calibrating help or is it the battery?
U can try calibrating the battery. Try charging it with the phone off, and if u get the same results, than its the battery
Sent from my SPH-D700 using xda premium
LORDFIRE00 said:
U can try calibrating the battery. Try charging it with the phone off, and if u get the same results, than its the battery
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
What lord said. I was seeing an issue where the battery would drop 8 percent as soon as I took it off the charger. Then if I rebooted, the battery would drop significantly so it was never reporting the correct battery percentage. Calibrating didn't help.
Ending up going with the Epic 4G touch battery and it's been a lot better. They are going anywhere from 15-25 bucks shipped:
http://forum.xda-developers.com/showthread.php?t=1284946
If the battery is over 1 year gold's expects a 10 to15% reduction in its capacity. Normal with nickel cadiums.
Sent from my SPH-D700 using Tapatalk
Simple Guidelines for Charging Lithium-based Batteries
A portable device should be turned off while charging. This allows the battery to reach the threshold voltage unhindered and reflects the correct saturation current responsible to terminate the charge. A parasitic load confuses the charger.
http://batteryuniversity.com
Charge at a moderate temperature. Do not charge below freezing.
Lithium-ion does not need to be fully charged; a partial charge is better.
Chargers use different methods for “ready” indication. The light signal may not always indicate a full charge.
Discontinue using charger and/or battery if the battery gets excessively warm.
Before prolonged storage, apply some charge to bring the pack to about half charge.
Over-discharged batteries can be “boosted” to life again. Discard pack if the voltage does not rise to a normal level within a minute while on boost.
Wow! You are like Mr. Battery or something!
Sent from my SPH-D700 using XDA App
Hahaha...I couldn't remember all the info about the lithium ion cells (I read a lot about awhile back). So I decided to post some factual info about. That way it helps everyone and anyone
Sent from my SPH-D700 using xda premium
I hope you are not using a generic battery. I have seen those things spontaneously short themselves. Whatever you do, don't take your battery apart and attempt to rebuild it yourself. Chances are, you don't know what you are doing. I have seen people attempt to fool around with batteries and get hurt.
Remember, lithium ion batteries are a lot like horses stomachs:
1. Empty them often.
2. Fill them often after emptying.
3. Never leave them alone with a full stomach. (Always leave them alone half full).
4. Use them every day in some way.
5. Never ride them hard outside of MacBeth Castle and then walk them for a mile so you don't get killed by Lady MacBeth's agents. (If you use them very hard for a long time, and then use them sparesely afterwards, don't expect them to be stable...and don't expect not to get murdered outside of your castle).
Sent from my SPH-D700 using xda premium
Sounds like a phone charging issue. I've never seen this cuz my phone charges my battery in RARE circumstances like once a year. 4 batteries externally charged well worth the money... ;-)
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SadieNibblesworth said:
I hope you are not using a generic battery. I have seen those things spontaneously short themselves. Whatever you do, don't take your battery apart and attempt to rebuild it yourself. Chances are, you don't know what you are doing. I have seen people attempt to fool around with batteries and get hurt.
Remember, lithium ion batteries are a lot like horses stomachs:
1. Empty them often.
2. Fill them often after emptying.
3. Never leave them alone with a full stomach. (Always leave them alone half full).
4. Use them every day in some way.
5. Never ride them hard outside of MacBeth Castle and then walk them for a mile so you don't get killed by Lady MacBeth's agents. (If you use them very hard for a long time, and then use them sparesely afterwards, don't expect them to be stable...and don't expect not to get murdered outside of your castle).
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
You have the strangest analogies yet I fully understand them haha
Sent from my SPH-D700 using XDA App
I'm noticing on gummy and other roms I try that the first 10-12% drops fast then slows down to normal. No matter what kernel I try this seems to be the case. Anyone have any idea or maybe you could school me? Thanks community
I've wiped stats and tried to open and close camera, super aggravating!
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When your phone is on the charger, it will charge to 100%. After it hits 100%, it will remove itself from the charger and run on battery. This will go down to a certain percentage (maybe 95%, maybe 90%), at which point the phone will reattach itself to the charger and charge back up to 100%. The drop you are seeing is when you take the phone off the charger while it is in the midst of one of these cycles. I would assume it still shows 100% battery but drops down to what it's really at.
Thanks but my battery doesn't get consistent until around 90 and lower so I'm sure your rite but why does charge to 100%
On my nexus s it stoped at 95-96%?
Sent from my Galaxy Nexus using xda premium
I have the same "issue" but I've just learned to live with it...
this makes perfect sense! i always wondered why it did that! thanks
oilfighter said:
I have the same "issue" but I've just learned to live with it...
Click to expand...
Click to collapse
Obviously we all learn to live with it but isn't it nice to know that its an issue and not your phone alone, that's why I ask to see if my fellow community members are experiencing the same problem? I think it has something to do with the fast charge
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joshnichols189 said:
When your phone is on the charger, it will charge to 100%. After it hits 100%, it will remove itself from the charger and run on battery. This will go down to a certain percentage (maybe 95%, maybe 90%), at which point the phone will reattach itself to the charger and charge back up to 100%. The drop you are seeing is when you take the phone off the charger while it is in the midst of one of these cycles. I would assume it still shows 100% battery but drops down to what it's really at.
Click to expand...
Click to collapse
One way around it is to unplug it for a second and then plug it back in to top it off.
Or charge it while it is off
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mike216 said:
Obviously we all learn to live with it but isn't it nice to know that its an issue and not your phone alone, that's why I ask to see if my fellow community members are experiencing the same problem? I think it has something to do with the fast charge
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
It's really not an issue, it's just how it works. It gets to 100% and instead of charging more and frying itself, it stops charging. When you take it off the charger at 100%, it's not really at 100%, it's somewhere in between 90 and 100. The reason it says 100 is that if you let it charge all night and it said 93% in the morning you'd have already called to Samsung to complain, as would have everyone else.
The HTC thunderbolt did this as well. To protect the battery, once it reaches 100%, it stops charging. Then once it hit 95% or somewhere in the 90s again I believe, it kicked back on. You have to bump charge. Though I believe once I started installing custom roms, the issue seemed to disappear. So maybe its in the code or something.
Sent from my Galaxy Nexus using XDA App
Every phone does this.
xHausx said:
One way around it is to unplug it for a second and then plug it back in to top it off.
Click to expand...
Click to collapse
DON'T DO IT!!!!
Seriously, bump charging will destroy your battery health.
Every phone does it. It is to protect the battery's life.
Batteries suffer when they are 100% charged and when they are really low.
That's why when you get a brand new battery is it charged about 50% because it extends the battery's life while in the shelf.
When I disconnect in the mornings it's always 97 or 98%. who knows when it stops charging in the middle of the night. but from 98% to 75% it is really quick. maybe because during that time I'm on the train listening to music and browsing the internet at the same time.
With iphone 4, I always disconnected at 100% in the mornings and after the train ride the battery was around 88%.
fubaya said:
It's really not an issue, it's just how it works. It gets to 100% and instead of charging more and frying itself, it stops charging. When you take it off the charger at 100%, it's not really at 100%, it's somewhere in between 90 and 100. The reason it says 100 is that if you let it charge all night and it said 93% in the morning you'd have already called to Samsung to complain, as would have everyone else.
Click to expand...
Click to collapse
No I didn't calk Samsung and did you hear me complain? I simply asked a question and if you dont like what you read then ignore it and move on. Wake up on the wrong side of the bed. What's up with people hear?
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mike216 said:
No I didn't calk Samsung and did you hear me complain? I simply asked a question and if you dont like what you read then ignore it and move on. Wake up on the wrong side of the bed. What's up with people hear?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
He was just saying that if you put your phone on for a full night of charging and woke up to see it was at 93%, you'd probably assume something was wrong and call the manufacturer. Chill out, he's not insulting or mocking you...
I didn't leave it on all night but he was a little offensive by basically calling me a complainer by saying did I call samsung already
I just wanted to known if my problem was rom or kernel or maybe even hardware but coming to find out that my GN is just like that was a bit of relief. I've owned a galaxy s,nexus s but this was the first time I've seen a Google samsung battery charge behave like this. No biggie was just curious
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KWKSLVR said:
Every phone does this.
DON'T DO IT!!!!
Seriously, bump charging will destroy your battery health.
Click to expand...
Click to collapse
In the long run maybe a little, for how long most people keep their phones it won't matter though. This was actually something HTC recommended we do for the Evo 4G cause it was the exact same way.
I actually did have one of my batteries discharge too much to where it wouldn't come back, but all I had to do was take it in to Sprint and they gave me a new one for free.
mike216 said:
I didn't leave it on all night but he was a little offensive by basically calling me a complainer by saying did I call samsung already
Click to expand...
Click to collapse
I don't know how you got that from what I wrote. I was just saying that if you woke up and the battery said 95% after charging all night you'd think something was wrong with the phone, as would everyone else. The reason it says 100% is that the phone manufacturers don't want to explain that it's not a problem to a million callers a day.
xHausx said:
..
I actually did have one of my batteries discharge too much to where it wouldn't come back, but all I had to do was take it in to Sprint and they gave me a new one for free.
Click to expand...
Click to collapse
The same thing happened to my brother's G2.
Then I remembered, It can be brought back to life either with high voltage or high current. I plugged in to my Touchpad's charger (which is 1.3 amps I think), and the miracle happened. It returned from the dead.
KWKSLVR said:
Seriously, bump charging will destroy your battery health.
Click to expand...
Click to collapse
sstang2006 said:
Batteries suffer when they are 100% charged...
Click to expand...
Click to collapse
Not true.
The best thing for a Lithium Ion battery is to keep constantly charging it as much as possible. These are not the old nickle batteries of ~10 years ago. The internal circuitry inside your phone's charging system is what keeps the lithium cell in it's "happy range".
However, once a cell is outside of it's "happy range" one of two things will happen:
1) Thermal run-away; this is when an overcharged cell begins to generate it's own heat by consuming Lithium, creating more heat, consuming even more Lithium, creating even more heat, etc... When you hear of people's laptop batteries catching on fire in airplanes or where ever, it's usually because of thermal run-away.
2) Cell depletion; if a cell is discharged too low it looses it's ability to retain a charge. It's not a "Hmmm... my batter doesn't seem to hold a charge as long anymore" like the old nickle batteries, but it won't hold ANYTHING at this point.
In closing, there is nothing wrong with "bump charging" your Lithium battery. The charging circuitry has been HEAVILY scrutinized and tested for safety measures and will never overcharge your cell (assuming the HW is opreating correctly).
Hey guys! Just gotten my note 2, and gonna drain the battery down soon, should I plug it in and charge for 8 hours straight from zero? Should this be done with the phone off? Or this doesn't matter anymore?
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Doesn't matter anymore...
I usually do it. Zedomax recommends it, and it doesn't hurt anything to do so.
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Is it alright I do it with the power on?
Sent from my GT-N7105 using xda app-developers app
This is not needed anymore.
if the battery takes to long to kill then simply its already calibrated
many people don't know how a none-calibrated battery acts and think "battery life is great but it will get better later!"
if anyone of you happened to have a nokia phone in year 2000ish and still have it around i recommend you to go get a replacement battery for it and see for your self
unless the new battery jumps from 100% down to like 80/70% in no time then take too long to drain from 10% or something like that (in short battery acting weird)
then its already calibrated which is the case in all new phones/batteries
TL;DR
unless the battery is acting weird and not taking too long to kill then you dont need to do that
Hell Guardian said:
This is not needed anymore.
if the battery takes to long to kill then simply its already calibrated
many people don't know how a none-calibrated battery acts and think "battery life is great but it will get better later!"
if anyone of you happened to have a nokia phone in year 2000ish and still have it around i recommend you to go get a replacement battery for it and see for your self
unless the new battery jumps from 100% down to like 80/70% in no time then take too long to drain from 10% or something like that (in short battery acting weird)
then its already calibrated which is the case in all new phones/batteries
TL;DR
unless the battery is acting weird and not taking too long to kill then you dont need to do that
Click to expand...
Click to collapse
Thanks a lot I got my retail set from a carrier, so glad to have joined the note 2 community coming from the s3 :X so I just charge it up to full as per normal yes?
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This charging a long time first usage is also an old thing from the old nicd and nimh batteries..
in fact li-po and li-ion wont even charge after they are done, overcharging them means they explode/burn or get damaged.
there are built in safety features to prevent that.
and pulling it down to 0% means nothing since modern nimh, li-po, li-ion batteries don't got the memory effect.
actually going down to 0% would only test if the low voltage cutoff works as it should or if you damage your battery.
no need for that!
Frostyeo said:
Hey guys! Just gotten my note 2, and gonna drain the battery down soon, should I plug it in and charge for 8 hours straight from zero? Should this be done with the phone off? Or this doesn't matter anymore?
Sent from my GT-N7105 using xda app-developers app
Click to expand...
Click to collapse
Batteries that comes with the latestmpgones these day do not need to be charged for 8 hours!
Just charge it till its full and continue to enjoy it!
You can preserve the life of you battery by not fully charging it and you can damage it by draining completely. I've no source for this information.
Sent from my GT-I9100 using xda app-developers app