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?
Related
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)
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?
Does your phone require a bump charge to actually get the battery to 100%?
Unfortunately mine does. I had an incredible and am familiar with this process. Unfortunately my Charge told me that I was at 100% when it was really closer to about 60%. I know I was at ~60% b/c I turned the phone off and plugged it in and the batter icon showed about that percentage full.
Not too happy about this. It would suck if I have to have the phone off to get almost half my battery full.
Any fixes? Is it possible its just a fluke since this is one of my first couple initial charges?
Thanks in advance.
I havent had any problems like this. It could be that you got a bad battery...
Khanusma said:
Does your phone require a bump charge to actually get the battery to 100%?
Unfortunately mine does. I had an incredible and am familiar with this process. Unfortunately my Charge told me that I was at 100% when it was really closer to about 60%. I know I was at ~60% b/c I turned the phone off and plugged it in and the batter icon showed about that percentage full.
Not too happy about this. It would suck if I have to have the phone off to get almost half my battery full.
Any fixes? Is it possible its just a fluke since this is one of my first couple initial charges?
Thanks in advance.
Click to expand...
Click to collapse
The android battery meter isn't a pure percentage meter, it also uses statistical history and current useage to guage how much you have left. So if you turn the screen on and pull down the notification area the screen and cpu just went to full use from nill, and the battery is probably a little hot, so with little statistics yet the battery thinks its being drained super fast.
Unplug it when it tells you to and don't plug it in till it asks to be plugged in, this will get you the most accurate battery readings. Otherwise don't worry about it unless its telling you to unplug it and then giving you the low battery dance before you get to your first destination of the day or something terribly bad.
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....
Click to expand...
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.
Hi all,
I have noticed continued drop in my battery life max percentage over the last few months.
It used to charge to 100% and I'd get the "Remove to save power" popup but then it started charging to only to 97% max, now its only charging to 89% max. I can leave it hooked up for days and it won't charge past that!
The mV stats are at like 4230 or so when charged to 89% so I think its got proper capacity but the actual percentage is reporting wrong... this happens on any ROM, Samno's, Thiaiz etc.
I've tried wiping battery stats so many times both with the market app and with CWM. I've even tried "bump" charging with no luck.
I don't know what else to try... I wonder if its becoming a bad battery... Has anyone else experienced any similar issues?
crazycage said:
Hi all,
I have noticed continued drop in my battery life max percentage over the last few months.
It used to charge to 100% and I'd get the "Remove to save power" popup but then it started charging to only to 97% max, now its only charging to 89% max. I can leave it hooked up for days and it won't charge past that!
The mV stats are at like 4230 or so when charged to 89% so I think its got proper capacity but the actual percentage is reporting wrong... this happens on any ROM, Samno's, Thiaiz etc.
I've tried wiping battery stats so many times both with the market app and with CWM. I've even tried "bump" charging with no luck.
I don't know what else to try... I wonder if its becoming a bad battery... Has anyone else experienced any similar issues?
Click to expand...
Click to collapse
Me.
I said to myself "Screw this I don't care anymore." and that was it.
I don't care what it shows anymore.
hehe yeah, I guess I should do the same, so I don't end up going more crazy than I am already!
Though... there still must be a technical reason for it... hopefully something reversible.
I have the same problem can be recharged up to a maximum of 4% I tried with CMW and batery calibration but without results
Lol :/ try it with a fresh kdz...?
Sent from my LG-P920 using xda premium
Your battery is probably going bad.
Charge it to 90% instead of 100%. It can extend the life of the battery.