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Only charges up to 95%

Hi guys,
I've noticed that if I plug my phone to the wall charger, when it reaches 95% it just stops charging. I can unplug it and plug it again, and I can reach 100% by repeating the process multiple times, but not in one sitting?
Is this normal? Does it happen to you? Does it get better?

Same here
(Using SuperAosp-ST 4.4)

i have that 2

I got to 98 once !
Sent from my Nexus S using XDA Premium App

Wow. So, is this some kind of feature or what?

frandavid100 said:
Wow. So, is this some kind of feature or what?
Click to expand...
Click to collapse
as far as i know, its an known bug

Its by design - charging the battery to only 95% level & then the following discharge. It elongates the battery life. It should never charge to level's exceeding the above.

It's not a bug.
Most batteries lifespan drop if being on high voltage too long (100%)
So usually manufacturers will try to let it state it is fully charged before it even reach 100% to extend the lifespan of the battery.
But if you really want to see it charged fully you can do a battery stats wipe in recovery after a ROM flash. It will be able to charge to 100% fully.
Hope that helps.

navlem said:
It's not a bug.
Most batteries lifespan drop if being on high voltage too long (100%)
So usually manufacturers will try to let it state it is fully charged before it even reach 100% to extend the lifespan of the battery.
But if you really want to see it charged fully you can do a battery stats wipe in recovery after a ROM flash. It will be able to charge to 100% fully.
Hope that helps.
Click to expand...
Click to collapse
tried this methode, but no success.
i come from a X10 and SE build in a charging algorithm: battery charged fully, hold this value for one hour and let the battery fall till it reaches 90% and charge again.
do you mean such methode to extend battery life??
the phone from my boss (i9020) charges to 100%, my (i9023) only to 96%

96% is ok, as i said, being in high voltage often kills the battery. 96% keeps it's lifespan much longer.
Being said that, even extremely low voltage kills the battery too. So usually your phone will die before the battery reach 0%

Not this again
From the FAQ post, in this very forum, which should be read before posting a new thread:
Q: I unplugged my phone, and my battery dropped from 100% to 95% immediately, or it won't/takes along time to charge past 99%, what gives?
The answer leads to this informative article about what your battery gauge is telling you, and why 100% is probably not what you want ...
http://www.androidpolice.com/2010/12/14/your-battery-gauge-is-lying-to-you-everything-you-need-to-know-about-bump-charging-and-inconsistent-battery-drain/

shamarama said:
Not this again
From the FAQ post, in this very forum, which should be read before posting a new thread:
Q: I unplugged my phone, and my battery dropped from 100% to 95% immediately, or it won't/takes along time to charge past 99%, what gives?
Click to expand...
Click to collapse
While I thank you for your reply and linking to that article, that is a related issue but not exactly the same. The usual behaviour is for the battery to indicate a 100% charge and then drop to a lower level, as you bolded in your post. The behaviour I'm talking about is it never going over 95%.
Not a big difference, but enough to notice the change and ask about it. Don't you think?

I myself own a GT-I9020T & have never seen the charge levels exceed beyond 95%.

You are right, your description is subtly different than the post in the FAQ. I have to admit laziness in assuming that they would be one and the same 'problem' ... apologies if they're not.

Well, you did give useful info even though you thought it was an old, tired question. I can't see a reason to give apologies there

Turn the tethering on while charging; it'll charge the battery up to 100%

I think my Vibrant had the same issue / feature. It's probably a Samsung feature and not a bug.
Sent from my Nexus S using XDA Premium App

Mine hits 100pct sometimes but will always stop charging until it drops below 90. A good feature to save the battery. Makes 0 sense for it to be charging every time it drops 1pct for hours at night while on the charger.
I'm wondering if people seeing a difference in the overall charge cap is a matter of rom? I've been using cm for practically ever but I know some people are on stock. I'm sure it's possible something is modded in there to make sure it hits 100 before it stops.
Just a thought.

On nexus s with stock rom I was able to charge to 100%

bolabola118 said:
Turn the tethering on while charging; it'll charge the battery up to 100%
Click to expand...
Click to collapse
LOL can someone confirm that?
richrach said:
On nexus s with stock rom I was able to charge to 100%
Click to expand...
Click to collapse
maybe thats the problem, because the phone of my friend also charges to 100% (completly stock) mine only to 96% (NSCollab)

[Q] nexus s 4g battery

So I bought my phone just after the first day of release. While battery life isn't bad its still pretty questionable. But for now my main issue is the battery level. When charging my phone, the battery level never reaches 100%, it usually sticks around 97%. When I go to check in settings, the battery reads fully charged but the percentage says differently. I just wanted to know if this is an issue that anyone else and if a battery calibration will help fix this.

This had been addressed many times if you charge a battery to 100%.... they explode after a while. 97 is normal and good don't think to much about it your phone is fully charged
Sent from my Nexus S using XDA App

kashb91 said:
So I bought my phone just after the first day of release. While battery life isn't bad its still pretty questionable. But for now my main issue is the battery level. When charging my phone, the battery level never reaches 100%, it usually sticks around 97%. When I go to check in settings, the battery reads fully charged but the percentage says differently. I just wanted to know if this is an issue that anyone else and if a battery calibration will help fix this.
Click to expand...
Click to collapse
It's a samsung/gingerbread feature , to prevent causing any damage to the batteries

Ok cool. While on topic of batteries, what kind d of usage are you guys getting out of yours? I've noticed that I need to turn off internet throughout the day without getting too low when away from a charger. I know around school I have bad signal and there's not much I can do for that, buried there any other advice?

[Q] Battery problem (recognizes a 1200 insteed of 1500)

When I got the automatic update to go from 2.3.3 to 2.3.4 My battery was charged about 30%. After the update was done, which went very quickly, it was almost 60% charged. This sudden jumped seemed awkward to me. I have the feeling that a 100% charge is now actually a 80% charge, because it recognizes the battery as full.
So I downloaded an app called 'battery monitor widget' to see some more battery stats. When I bump charge, I have reached 100% with the following stats:
4200mV
1200/1200mAh
Seems oke, but the first thing I noticed it says it has a 1200mAh battery, while my battery itself says it's a 1500mAh battery. It's on the sticker. Also the Nexus S is generally advertised with a 1500mAh battery.
Can it be that the upgrade messed things up? Why does it see my battery as a 1200 insteed of 1500? I honestly don't know if the problem was there before the upgrade, simply because I didn't question it.
Anyone knows what's going on?
Thanks in advance!

Bump. There must be someone between all these experts here..?

I've emailed the dev and didn't get a reply. Just go into settings and change it to 1500. The highest I've ever seen the battery was 98. I've read other things on this so it isn't an isolated incident. I wouldn't worry about it. Don't bump charge it too much, that might not be good. Charge while off or when it says it's charged, reboot the phone and let it top off again.

Thanks for the reply, but how can you change this in settings?

[Q] My new, stock Charge is getting ~6 hour battery life.

I've installed the Yelp, Movies, and Amazon app, nothing else, and I'm losing around 15% an hour with light/normal usage.
I've let the battery run down to 0 and recharged completely, I've turned off gps and wifi, and still get really bad life. I live in the Bay Area and get a solid signal all of the time. There's really no excuse for it.
Please don't tell me to flash to a rom, because that's obviously not fixing the issue. Light browsing and the occasional Google Maps has my phone at <20% by the afternoon.
Battery stats just show android system and screen brightness taking up power. What's the deal?

I also constantly have at least 255 / 328mb in use even with all applications closed.
Sent from my SCH-I510 using XDA App

The mb usage is normal i noticed this on stock because of Verizon apps that run in background. As far as not using the phone and only getting 6 good hours of use. i would take to the store and ask if they could change out the battery. Hope this helps.

+1 for that, sounds like you have a defective battery.
Sent from my Droid Charge

Thats about how long my battery gets me.
And if I forget to power down my phone at night, or put it on a charger it is dead by morning no matter how much of a charge it has before I go to bed.
I have an extended battery starring me in the face and can't use it yet since I couldn't find a door and had to have one shipped from Samsung.
Hopefully the extended battery cures my issues.
(I am running Gummy Charged 2.3.3 Beta, currently waiting for the 2.3.4 release)

Abradax said:
Thats about how long my battery gets me.
And if I forget to power down my phone at night, or put it on a charger it is dead by morning no matter how much of a charge it has before I go to bed.
I have an extended battery starring me in the face and can't use it yet since I couldn't find a door and had to have one shipped from Samsung.
Hopefully the extended battery cures my issues.
(I am running Gummy Charged 2.3.3 Beta, currently waiting for the 2.3.4 release)
Click to expand...
Click to collapse
I am curious as to what you guys are running. And if you go to bed with your phone on , and its dead by morning I can PROMISE you there is either something going on with your phone, or you are doing something wrong (i.e. you have your phone set to never sleep, your screen is set to maximum brightness, your are leaving your phone in desk cradle mode, etc etc etc.) But it's not the phone. May be a bad battery, but without being at your house and seeing what you are doing, I have no intelligent answer for you.

dragonstalker said:
I am curious as to what you guys are running. And if you go to bed with your phone on , and its dead by morning I can PROMISE you there is either something going on with your phone, or you are doing something wrong (i.e. you have your phone set to never sleep, your screen is set to maximum brightness, your are leaving your phone in desk cradle mode, etc etc etc.) But it's not the phone. May be a bad battery, but without being at your house and seeing what you are doing, I have no intelligent answer for you.
Click to expand...
Click to collapse
charge phone to 100%, boot into clockwork recovery and wipe your battery stats, then use the phone until you completely drain your battery until it shuts off. Then charge back up completely. This will calibrate your battery. try running a customer rom such as gummy charged or humble to see if you get bettery battery life... thousands of users have reported great battery life with both

I had same crummy battery life. I followed the calibration instructions and i went from about 5-6 hr batt life to ( right now im at almost 11hrs with 66% battery left on wifi with moderate use). Ill test tomorrow on 4g only and see how it does. I would get like 4-5 hrs before.
Sent from my LG-P920 using XDA App

danalo1979 said:
charge phone to 100%, boot into clockwork recovery and wipe your battery stats, then use the phone until you completely drain your battery until it shuts off. Then charge back up completely. This will calibrate your battery. try running a customer rom such as gummy charged or humble to see if you get bettery battery life... thousands of users have reported great battery life with both
Click to expand...
Click to collapse
I am running the latest humble and my battery drops really fast. If I go into task manager and clear my RAM, I get better battery. I calibrated per the instructions as well about a week ago or so and saw no improvement. Please note that I have not been scientific about it at all.
Stopping Data obv helps a million and clearing RAM seems to help as well.
EDIT: I am recalibrating in case it was not done properly before. Hopefully it will help. I am hopeful!

I charged my battery to full, booted into clockwork recovery and wiped my battery stats.
When I rebooted my phone it shows a 73% charge?

Abradax said:
I charged my battery to full, booted into clockwork recovery and wiped my battery stats.
When I rebooted my phone it shows a 73% charge?
Click to expand...
Click to collapse
If you are on humble 1.x then that means your battery stats were way off. Basically your battery still needs 23% more charge before its full... thus better battery life... because you had a miscalibrated battery, your phone is erroneously reporting a full charge... charge it back to 100% then discharge fully then charge all the back up
Sent from my SCH-I510 using XDA Premium App

I'm on Gummy Charge GRE, but I assume the same reason?

I exchanged my battery at verizon. So far it seems better. Ive let it drain and am recharging now. I will also try uninstalling g+ if the new batt hasnt solved the problem. I will post back with an update.
Sent from my SCH-I510 using XDA App

I switched out my battery 2 days ago, and I'm still getting under 6 hours with moderate use.
Has anyone had luck with ROMs drastically improving battery life? I can't imagine it being the phone itself, but I might try exchanging it too.
EDIT: it seems like the new battery charges a bit faster. My old battery would take around a minute for one percentage gain. Can anyone comment on their charge times?

Odd battery %tage display and behaviour

I posted this in another forum and the response I got was somewhat weak. Instead of re typing everything I will cut and paste my posts and hopefully you guys can guide me in the right direction!
Here was post 1 -->
I just bought a Rooted Nexus S from ebay. It is running this ROM Nexus S ICS 4.0.4 stock OTA ROM (IMM76D)
Now, I know nothing about android, I'm coming off a series of old turd phones because i'm always breaking them. I'll probably break this one too, but hopefully not for a while.
When I got the phone I put the battery in and turned it on, then charged it overnight. It will only charge to 54% and stay there. I talked to the seller he said it charged normally for him. He said he did a complete wipe and USB wipe before he shipped it.
The battery seems to drain normally (I guess, I have nothing to really compare it to) from 54% but it would be nice to have it charge to the 90% -ish range haha. I allowed the battery to drain to 40% and put it back on charge, it been on charge for almost an hour and will only charge to 41%? Do you guys have any ideas what I can do to fix this? Is this a sign it needs a new battery, or a software glitch? The seller said the battery shouldn't need replacing.
Also in the battery app under setting, Android System is using 28% is that a lot?
My last question is an important one to me haha. Is there anyway to convert the querty keyboard to a T9? I 've gotten used to texting with one hand and T9 makes it so much easier to do so.
Thanks everybody!
Someone recommended I try the battery calibration app So I did!

Post 2
Ok, I ran the Battery Calibration app. I let my phone charge for hours. It would only charge up to 38% this time. However, the percentage was 38% but it was charged to 3810 mV (and would not charge past this point). And full charge is approximately 4200 mV according to the Battery Calibration app. So I assumed that 3810 mV was my current battery's max charge (keep in mind it is a couple months old) and set battery calibration at that point.
This is from the app description --> It's suggested, but not necessary, to let the phone fully discharge after calibration, then charged to 100% without break.
So thats what I'll do. I should mention that even though I ran the battery calibration, the battery percentage has been draining from 38%. In other words, my phone now reads 26% battery charge, but is at 3758 mV.
I'm thinking that when I go to charge it after fully draining the battery, it will hopefully charge close to 100%. It seems as though the percentage is the only thing that is off. Because the mV reading seems accurate.
Here is a screenshot, what do you guys think?
This site won't let me post the screen shot until 8 posts, but I will do that once I get there!

Post # 3
The app says to let the phone fully discharge after calibration. I am now at 15%, but mV is at 3658. Should I recharge when the percentage has dropped lower, or when the mV reaches a low point? Are these phones really this finicky. I'm starting to miss my old 2007 flip phone haha
It's now at 14% and now asking for me to plug it in to charge lol but mV is still way high (3655)
Post #4
update, charge % reached 0 and the phone shut down. Now charging, Current charge is at 0%, 3595 mV. No one has any idea whats up?
Shouldn't mV be near 0 when charge is at 0%, and be near 4000mV when charge is near 100%?

hopefully you guys can help me fix this issue. Otherwise it'll have to go back to 'ol reliable, the 2007, multiple cracked screen, nokia slider lol It's not pretty, but it works!

There is a built in safety feature in our batteries to prevent deep discharges. IIRC, the safe cutoff point is around maybe 34xx mV. I could be off, but its to prevent damage to the battery. Here's more on them
http://batteryuniversity.com/learn/article/is_lithium_ion_the_ideal_battery

As for voltages, a full battery should be around 4100mV. Mine tops out around 4196. I'm not too familiar with all of it though. Most of the stuff I learn is through observation and links others provide.

Thanks for the reply! So are you saying that when the voltage is around 34xx the battery charge % should be close to or around 0%. And when the voltage is near the 4000mV range the charge %tage should be approximately 9x%
Do I have the right idea here?

Its hard to say while its charging. My phone is at 4000mv around 70% so I don't really know exactly how it works. But a full battery should read around the voltages I posted. There's people on here who know more about it, so hopefully they'll chime in.
But yes. When its close to zero, it should be around that range. It will differ from battery to battery.

Ah k thanks! My original problem was that the phone would only charge to 54% and would not go past that point. I'm waiting to see if it will get into the 90 ish % range after running the battery calibration now.

The app itself doesn't actually do anything. The stats will get reset once the charge reaches 90% My girlfriend's phone was the same way. It wouldn't charge past 75%. I let the phone run dead and charged it while it was off and it fixed the problem. If it doesn't go to 90%, try charging while off and just letting it run until it gives the warning to charge, turn it off and let it charge overnight .

Ok. Well I let the phone run dead earlier today as I mentioned in one of the above posts. But I didn't charge it with the phone off. I put it on charge with the phone on, and now it won't charge past 11%
It just seems to be getting worse and worse? It's been going between 10% and 11% and has been at 11% for about 2 hours now. Maybe this time I will drain it again and try charging it with the phone off like you suggested.
This is slightly annoying

All else fails grab another battery. They're dirt cheap on eBay. Just get one from a reputable seller

Ok, so I let the battery drain. then fully charged it with the phone off. When I turned it on, it had 47% charge.
The guy I bought it from said that before I buy a battery I should download an app called rom manager and download a new rom. he thinks its a software bug because he had no problems with the battery when he was running cyanogen mod 9 on it.
I wouldn't mind giving trying this, except I don't even know what a rom is. Is it operating system? I like the way the phone works now, If only I could get it to charge fully.
Thoughts?

Ok, I just did a bunch of reading and downloaded ROM manager premium. Hopefully I get this figured out. Owning one of these phones is a lot of work

lts pretty much a pocket computer. Coming from an older type of phone, a lot of things are going to be different. Gotta start somewhere. Reading up on it and toying around with the phone will help in the long run. Trust me.

or not....

louderstill said:
or not....
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Click to collapse
Haha, pretty much. I'm slowly starting to learn more. I didn't think there was this much of a learning curve, thats what took me by surprise thats all. I'm a fast learner so I'm not too worried. I didn't have time to play around on it tonight, maybe on the weekend. I found out I could use it without the sim card which is awesome! Because now I can use old faithful while I learn more about android.
Thanks for the help so far though, I'm sure I'll have more questions soon haha

Haha. Yep. You can have tons of fun just using it over wifi!

Do keep in mind, fully dishcharging a lithium ion (li-ion) battery deteriorates the battery even more. We only discharge because older phones use nickel cadmium batteries which need more maintenance to get to their maximum life span and use.
Off topic though.
Battery calibration just wipes your battery stats. You can do this by going into any recovery program eg clockworkmod receovery or team win recovery project. You can wipe the battery stats yourself. If that still doesnt work. Try doing a clean install of your custom rom or kernel. If your not on a custom rom or kernel. Nor your rooted. Try formating the SD card in the Nexus S (or fully wiping the sd card). Than do a factory reset.

Ok, so I finally had some time to learn to flash etc. After backing up, I downloaded and flashed the same rom from SD, I cleared davlik cache and also selected the wipe data and cache option from ROM Manager (I assume that this is what is called a clean install?)
This is the ROM I am using http://forum.xda-developers.com/showthread.php?t=1653713 Slightly customized stock ROM, rooted.
After start up I waited a while and then plugged it into the charger, it only charges to 54% still. Sometimes it creeps up. One thing I noticed is that if I use the phone while it is charging, it actually drains the battery. So it will go from 54% to 52% and slowly drain. Is this an indication of a pooched battery?
Any suggestions? I will order a battery. Where do you guys order your batterries, I read that the oem samsung 1500 is reliable.