yashsingh1/xdaforums huggingface dataset:
[Nexus S General] RogerPodacter:
yeah i guess the point was that you have that option if you need it. for example at work all day i leave data on so i get my emails instantly all day. but when i have to go out drinking for the night for example, i turn off data, and after 5 hours the phone still shows 97% battery, i sh!t you not. so its just a good option to have.
[Nexus S General] gogol:
I would suggest to download the CatLog app below and then "record" the Android log for some hours or so.

Then examine the recorded logging.

You will be surprised with the result.

Work from there, remove unwanted app ... and/or reconfigure app settings.

Replace apps which are using unnecessary resources. I removed ASI recently because I don't like the fact it is using FlurryAgent.

CatLog - Logcat Reader!

by Nolan Lawson

5,000 downloads, 187 ratings (4.5 avg)

Free
[Nexus S General] Zardos66:
I just let my phone set idle for about 4 hours next to my HTC HeroC.

Hero lost 1% vs 6% on NS. The only thing that seems to be wrong is the "Android System" process is top of the list above screen at about 24%. Minding that only like 1% out of the 6%.

I don't get what is keeping it awake, the Hero shows android system at 3%.

Spare parts just FCs, so i can't tell and Watchdog doesn't really help either.
[Nexus S General] RogerPodacter:
did you have a sim card in both, and are they each activated with same email accounts, syncing services, etc?
[Nexus S General] Zardos66:
Sprint doesnt use sim cards, so its always on. When I'm at home I disable the data connection on my phones and put them on wifi with sleep policy of never. Oddly enough my NS has a better signal than my HeroC down here. Though I don't get the ASU rating.

Auto-sync was off on both, basically they had nothing enabled but a wifi connection. Could the derpy wifi on the NS cause it to drain more?

HeroC has CM6 if it matter, NS is on stock out of the box with 2.3.2. Maybe i should go ahead and put CM7 on mah NS.
[Nexus S General] RogerPodacter:
i dont know that it matters, i was just seeing if both phones were like-for-like conditions so the test made sense. sounds like it was. i dont know that the results cause by though...
[Nexus S General] babluc:
I have the exact same problem with "Android System" keeping the phone awake. Its battery life still better then the n1 but would be nice to know whats causing it. I thought gingerbread was better with dealing with apps and power.
[Nexus S General] g.lamprou:
Battery life

After the first month the battery has reached a very satisfactory! That is a full day on ... being 3g, wifi more times instead, google sync open throughout the day. Naturally full charge going 95 to 96% no more that's never change ! I think we should spend some time to give the maximum......
[Nexus S General] alpracka:
Hi, do you have SLCD or SAMOLED?
[Nexus S General] psp888:
I get 2 days out of mine and my sync is on 24hrs a day, wifi on half the day.

mine is AMOLED
[Nexus S General] g.lamprou:
samoled from us (best buy)
[Nexus S General] tekkitan:
how is this an accessory? :P
[Nexus S General] DKYang:
I'm wandering the same thing. It was in general section before being moved here.
[Nexus S General] egzthunder1:
Thread moved to Q&A.
[Nexus S General] kenvan19:
As a note about battery life; yesterday I decided to calibrate both my wife and my phones. Hers was at 37% and mine was at 60% (which is odd because her phone is running at 1.2GHz and mine at 1.4GHz) and I turned on everything. It took four hours to kill hers and six to kill mine. I had navigation running, music playing, brightness on full, WiFi, Bluetooth, the works. And it took four hours from 37%!
[Nexus S General] mtotheizzO:
Woes forced my hand - going to exchange...

It has been seven days since I've had my NS and after some excitement yesterday when I managed to squeeze almost 16 hours from the phone with light/moderate usage (~60 mins worth of calls, a little browsing, ~10 texts), it has gone back to it's regular behaviour: 9% left with only 9 hours usage, no calls.

I am hoping my replacement fares a lot better.

There seem to be plenty on here managing 20+ hours without any mention of neutering their usage (which I think is kind of defeating the purpose of having a smartphone in the first place, but that's for another topic).

I am actually going to have to go a day without a phone as I bought the device over the internet and have to have this handset picked up before receiving a replacement. But I guess that shows how desperate I have become; I really want to give this phone a chance as there is a lot to like about it.

I've read in forums elsewhere that others have got lucky with replacement handsets and hopefully I'll follow in their footsteps...
[Nexus S General] reflux:
i've had mine for a week and so far, im impressed. at this moment, my battery is at 49% and hasn't been on the charger for 15h 34m 40s. that is with HEAVY usage since i text nonstop, made 6 phone calls totaling 30 min, browsed the web for about 2 hours on 3G, listened to music, and have autosync on.
[Nexus S General] NicholasQ:
I tend to be scientifically minded. If there is no evidence, it is unmeasurable and cannot be verified.
[Nexus S General] gogol:
My Nexus S yesterday hit "2 days 2 hours" and still about 11% :)

30% Display

10% Dolphin browser (mixed 3G or Wifi)

Facebook-ing

Some gaming (Dungeon Defenders)

Some texting

and not much phone calls

Some others (Market, apps)

However:

- I dont sync automatically

- I dont sync email

- I dont sync facebook

- Weather refresh every 8 hours (Beautiful widget)
[Nexus S General] hah2110:
The Battery History function was removed in 2.3. CM added it back in his builds so you can use Spare Parts for that.
[Nexus S General] Hagow:
Do you guys use live wallpapers on your Nexus S? That probably drain the most battery.
[Nexus S General] ykphuah:
Those of you who get good battery life, do you use GTalk? Now I am using Green Power which doubles my battery life, previously it could only last one day but now, two. I think GTalk makes a big difference.
[Nexus S General] IDtheTarget:
I keep hearing from different people how they have great or crappy battery life with their phone, first the Vibrant and now the Nexus.

My experience has been that it depends on the apps that are loaded. i just saw a story on Slashdot about how over 50% of apps send data home to be sold to advertising companies. They have to be using battery power to do that. My wife was complaining that her phone will no longer last an entire day, and when I looked at it she had every crap free game there was on it.

When you install a program, look closely at the permissions. If it has network access, and it's not a network-style app, then it's sending your info out to the net. That's how the developer makes their cash.

I no longer install apps that access the net, unless that's the purpose of the app. I pay my $0.99 or whatever, and keep my battery life (and hopefully privacy) a bit more secure.
[Nexus S General] dinan:
Nope no navigation going. I've even force closed it but it still seems to soak up "Wake time" when I check the battery stats. Not entirely sure what's going on... may install System Panel and monitor it.
[Nexus S General] allen099:
Same, goes to 98% but won't top off. I'm hoping it's just a calibration issue.
[Nexus S General] D_Rob:
I got 37 hours of use, with engadget updating every hour, twitter every 15 minutes, news and weather every 6 hours, wifi on, bluetooth on, and gps on the whole time. And I was using the hell outta my phone. AT least 2 to 2 and a half hours of phone conversation over bluetooth, some nand backups, youtube a little, and hella app downloads and screentime use (i had to re-download 69 apps to get market links back). I am beyond amazed.
[Nexus S General] DarkAgent:
I get about 4 hours of screen time with both...
[Nexus S General] knytphal:
The very first time I charged it, it seemed like it took quite a while to charge, after being plugged in overnight it was still at 95-97%....I just left it plugged in for a bit whilst I used it - it did eventually get up to 100%.
[Nexus S General] Kubernetes:
That's terrible. I get about 4-5 hours of actual screen time on my Vibrant.
[Nexus S General] ztm.000:
How do you take screenies OP? What app.
[Nexus S General] Kubernetes:
Download an app called System Panel and activate the monitoring function. It will monitor every app that pings the CPU, so you can tell if something is running in the background.
[Nexus S General] TheBiles:
ShootMe.
[Nexus S General] climatic:
Hi, I' a total Android noob so the Nexus S is not only my first Android phone but 2.3 is my first experience with Android. How do you get the battery use graph (and thick blue lines showing usage patterns) to appear? Thanks.
[Nexus S General] ztm.000:
That's what I thought. Thanks.
[Nexus S General] IDtheTarget:
Well, first to teach you to fish: The User manual is always a good thing to download. ;)

Now to give you the fish: Open the phone to the home page, and touch the menu button (the second from the left on the bottom, looks like horizontal lines). Then choose "settings". Scroll to the bottom and choose "About phone". The third option is "Battery use", choose that. To see the extra stuff, touch the gray part on the top.
[Nexus S General] JohnnyFeet:
How is this even possible? My battery life is worse than my previous Nexus One. Roughly the same amount of use, potentially less. Any suggestions? Did you "condition" the battery...? This blows; I envy you.
[Nexus S General] hah2110:
GPSD in Battery Use?

Why is GPSD showing up in my Battery Use? 4 hours unplugged and I haven't used navigation in these 4 hours. I googled GPSD and it seems to be network-based location but why is the phone using it?

Thanks
[Nexus S General] allen099:
Not to poo-poo you, but I'm gonna have to take this with a slight grain of salt. Maybe even a handful ;-). GPS on the entire time and you get 37 hours worth of battery life? I wouldn't doubt you if it wasn't for that one line written in there. Unless you'd like to post some of your stats as well...
[Nexus S General] TheBiles:
He probably means "GPS enabled." It's only being used when you actually see the little location icon.
[Nexus S General] allen099:
That would definitely make a little more sense. I was trying to imagine keeping Maps open all day. Perhaps secretly I was hoping we've finally reached this level of battery life :-). Bubble bursted.

My battery life looks decent, though today is when I'm going through my first full charge cycle. I'm down to 27% with an uptime of 8hrs 15min. It looks pretty weak compared to the OP's images, but perhaps it will get better after another discharge or two.
[Nexus S General] slowz3r:
because you have network based location enabled
[Nexus S General] RogerPodacter:
You can leave gps on all the time. It only uses power when you see the little gps icon in the top status bar. Otherwise its completely off not using power.

I've never turned my gps off in almost a year with the nexus one.
[Nexus S General] hah2110:
I get that obviously but what is using it? It shouldn't just activate.
[Nexus S General] slowz3r:
the browser, facebook, twitter, just about any app that of that nature
[Nexus S General] hah2110:
No other apps were active though
[Nexus S General] IDtheTarget:
I did just notice that cell reception plays a part. While I was setting up my wife's new Nexus S, it didn't have her SIM card in it. It lasted more than a day and only got down to 35% or somewhere in there. After I got everything moved over and put her SIM in the new phone, it's dropping more quickly. We get crappy reception, so the cell radio is probably having to work harder to keep a connection and thus draining the battery.
[Nexus S General] Matterhorn:
I've owned the N1 since the launch. I use the NS exactly in the same way as I did my N1 and I'm getting a lot more time out of the battery on the NS. It is not scientific, but after a year with the N1 I can guarantee you that the NS battery is way better than the N1. The wild card is that when the OTA for the N1 comes out we may see a big improvement in battery life for the N1 too...keeping my fingers crossed.
[Nexus S General] Beeshkin:
[Q] Gallery app/Battery Life

:confused: My battery usage chart indicates that the Gallery app is using 68% of my battery. Is anyone else experiencing this problem? Are there any known (simple) fixes out there?
[Nexus S General] dinan:
I had a similar problem, except it was telling me the culprit was Google Maps. Do me a favor and in your battery stats, click on display or something, then click back, and keep your eye fixed on the Gallery process' name. Does the name say *Wakelock* instead of Gallery for a split second, then change back to gallery?

I get the feeling the phone is just mixing up some names...

Anyway, I fixed my issue by uninstalling and reinstalling the latest Google Maps beta 5. For you... I don't know how you could uninstall the gallery, perhaps freezing it with Titanium Backup and defrosting it?
[Nexus S General] Beeshkin:
It does say something for a split second, but it's not "Wakelock". After going back and forth several times I can make out "com.google.android.gall..." I'm assuming the gall is gallery so it seems like it's the right application.
[Nexus S General] D_Rob:
I'd start by installing SeePU from the market (the free one for test purposes) and see what your CPU is doing. Just add it as a widget (it appears in the notification bar) and see what your cpu is doing while the gallery is acting up.

If the widget is reddish orange, hook up your phone to your computer and mount the storage, see if it stops freaking out, if so, it's files on your sd card. But I figured out a fix so let me know if that is or is not your problem.
[Nexus S General] Darrien13:
all you people with awesome battery life how did you train your battery?
[Nexus S General] distortedloop:
Ugh, this is not good to hear. On the Galaxy S, with recent versions of the Gallery3D apk, many of us got some kind of battery draining sensor bug. I haven't noticed this with the Nexus S, though.

There's an app called Spare Parts that you can download. One of it's features is the ability to dig a little deeper into battery usage. Try downloading it and seeing what it reports for the Gallery. Is it running amok under the Sensor Usage part of the battery monitoring?
[Nexus S General] Beeshkin:
I tried what you suggested and the cpu bar is pegged all the way red all the time. I did find that the "picasa web album sync" was running constantly--despite me having no Picasa online albums. I have to disable all syncing and pull the battery to make the bar go back down to a "resting" green position.

Is there any way to only disable the sync with picasa? I am starting to hate this phone. There is a very Apple feel when being forced to sync with Google's crappy proprietary software.

Edit: I found where you can disable the Picasa sync. So far so good as far as battery use goes. I will try to plug the USB in again to see if the problem reoccurs.
[Nexus S General] Beeshkin:
I downloaded and used Spare Parts as well, but the application forces close anytime I try to select the battery analysis options. Maybe it needs some time to gather that information? I give it another shot in an hour or so.
[Nexus S General] yellathcir:
So I had mine go from full battery to dead in four hours the other night, it said the main culprit was android os. A reboot seems to have fixed it, last night it never dropped to the half dead point with heavy use, it was better battery life than I've had on any other android phone I've had(g1, mt3g and n1). Weird
[Nexus S General] distortedloop:
I hadn't used Spare Parts on the NS yet when I posted that. Apparently it's not compatible with Android 2.3 yet. It's worked on every other phone I've had, and is a good tool for diagnosing these kinds of problems.

Sorry for the confusion, but keep an eye out on the app, it's sure to be updated sooner or later. As is, it can still give you some benefit with its other features.
[Nexus S General] regP:
You can't train a lithium-ion battery. You CAN however recalibrate then if they're phone isn't reading its charge correctly.

Vibrant via XDA App
[Nexus S General] :
Weird battery problem?

Been stuck on 99% charging for about an hour? Is can't be normal can it..
[Nexus S General] slowz3r:
id really hate to say search, but ya search

This is normal
[Nexus S General] :
Couldn't find anything other than people disconnecting and dropping to 97% mines a little different.
[Nexus S General] slowz3r:
I would say its the same idea, my N1 did this, and it was never really an issue. Its just the way the device/software handles the battery status/percentage.

Annoying, yes....bad, nah :)
[Nexus S General] :
Ok thanks, yes its bugging me but I'm sure ill get over it lol.
[Nexus S General] slowz3r:
lol, like right now my NS seems to be stuck at 95%...is the battery really at 100% , prolly :)
[Nexus S General] :
Says 'Charged' now hours later :-S
[Nexus S General] slowz3r:
unplug it and plug it back in, its going to say 97 percent
[Nexus S General] :
Nope still says charged lol
[Nexus S General] DumbUglyDragon:
Supposed to prolong battery life.

Sent from my Nexus S
[Nexus S General] slowz3r:
this ^ is the truth
[Nexus S General] lcr44ramirez:
I have the same deal.with my NS. It says its charged bur when I unplugged it shows 97%
[Nexus S General] slowz3r:
Ya its normal and shouldn't be made a big deal of, :) its just for the better that it does this ;)
[Nexus S General] hah2110:
Isn't bump charging supposed to get you to 100? Mine still won't go past 96.
[Nexus S General] AndyCr15:
I read an article a week or so back, all phones do this while the battery is really between 95 and 100 as it turns charge on and off so as not to burn out, but it just shows us 100 too keep us happy.

Have you never had a phone come off charge and drop a couple of percent almost immediately?
[Nexus S General] slowz3r:
The N1 did this guys :) well for those who owned one...if you had battery percentage you would notice right off from the charger 5 minutes it was down to like 95%
[Nexus S General] sinatosk:
I think something is wrong with my battery or phone then... you think so?

http://xdaforums.com/showpost.php?p=10095876&postcount=21
[Nexus S General] TheBiles:
Dungeon Defenders drains the battery like mad. You might want to try going a day without it and see what kind of results you get.
[Nexus S General] sinatosk:
... as I said ... this happens with or without gaming and I bought this game today
[Nexus S General] tempera:
What do u think about mine? Check this out:

http://xdaforums.com/showthread.php?p=10096658#post10096658
[Nexus S General] onthecouchagain:
In regards to taking care of the battery, can you charge this battery anytime, or does it have to be low first (and if so, toward what, 5%, 10%, 15%)? Is it perfectly okay to start charging it at, for example, 50%, if say I know I won't be near a charger anytime soon. Do I always have to wait until it drops to low numbers?

Battery life so far has been quite fantastic.
[Nexus S General] TheBiles:
Don't really have enough information to tell you anything there! I will suggest charging for a night, unplugging in the morning, then just using your phone normally until the battery is low. Then go to Menu->Settings->About phone->Battery use and either screenshot the information or post it here so we can analyze it.
[Nexus S General] tempera:
Okay, I'll take one, my battery is on 25% yet.
[Nexus S General] tempera:
IS there a way of taking screenshots without root?
[Nexus S General] TheBiles:
Over ADB, but if you have ADB set up you might as well root.
[Nexus S General] tempera:
This data is from a full charge overnight, I used this moderate all day:

Battery Level : 28%

5 hours 43mins on battery

Display - 53%

Android System - 13%

Browser - 11%

Android OS - 6%

Wi-Fi - 4%

Cell Standby - 4%

Live Wallpaper - 3%

Market - 2%

So any suggestions now?
[Nexus S General] asci:
I rather say it is a bug. But not a normal behavior. My iPad did the same before the last sw upgrade. After that, I had a correct battery percent. My Nexus S now shows charged, but the moment I unplug it from the charger, it drops down to 97%.
[Nexus S General] :
Battery woes;(

Its taken 15mins to go from 42 percent to 48 percent is this right? Seems a little slow to me?

Its on its second charge and the first run only lasted 6 hours of heavy usage, do this numbers sound right to you guys?

JD;)
[Nexus S General] schartzr:
My battery went from 100 (97%) to 79% in less than an hour and that was doing nothing we were at lunch the other morning and it just seemed to die on me. I am not sure what is going on with this battery but it SUCKS
[Nexus S General] :
Its a strange thing, it seems to pick up faster as it goes along, it went from 42 -48 in 15 minutes and then went to 55 in a further 10 minutes so 13 percent in 25 minutes, going by the second tally it should charge fully from 0 - 100 in just over two hours, i suppose thats about right?

JD
[Nexus S General] :
That is a massive drop when asleep, are you in a poor 3g area that is a massive drain on the radio, bext thing to do is test it in airplane mode and see if its your radio being strained, if its not your radio its most definitely your battery;)

JD
[Nexus S General] :
Just did a reboot and the battery stat jumped from 60 to 78 percent lol, i think we can safely say the OS is not statting the battery properly;(( So this renders all battery stats useless except for the on screen animations i suppose?

JD
[Nexus S General] jaker.the.skater:
well I'm on 56% and my phone has been on for 26 hours, granted 8 hours was me sleeping. if you guys are losing a lot of battery while idle then you have a bad battery or a rogue app. I didn't use it heavily but I did use it often.

its been on auto brightness, gps has been on, I did a good amount of web browsing, checked twitter a million times, looked at facebook for a half hour, listened to music for about an hour and a half. plus I took a few pictures and used led flashlight for a few minutes last night

battery life has been very good for me so far.
[Nexus S General] :
Im not losing battery while idle, and im not calling you a liar as such, but there is not an android phone on the planet that has that sort of battery life, hell i dont think the iphone4 has that battery life, are you sure you have your stats right, or you have probably used the phone not as much as you say...

i was only on my first charge so i will consider a final result after about a week, if its the same, i will be getting another battery, but im sure it will get better.. Im a heavy user of the phone, but anywhere between 12 - 16 hours will be cool for me;)

JD
[Nexus S General] schartzr:
See like this morning. I unpluged this morning at 7AM it is 9:48 I am down to 87% I have checked twitter a little bit maybe at most a total of 5 minutes. And gotten 3 texts but to go from a full charge to 87% in 2.5 hours is CRAZY. I am great 3G full bars and everything.

And Yes I agree that jaker.the.skater is stretching the truth. There is no phone that can do that and still be at over 50% charge in 26 hours.IMHO
[Nexus S General] :
Yeah your sounds about right mate, without wifi you should degrade about 5 percent an hour, i definitely think my app wasnt stating right as they said 62 percent, and after a reboot it jumped to 78 percent, im not gonna use any battery stats now, it dies when it dies, lollol

JD
[Nexus S General] jaker.the.skater:
I might have exaggerated a little but I still used it for 18 hours. it was on airplane mode for 8 hours while I was sleeping and didn't drop at all. if you read the linked thread you'll see why it looks like you lost battery right after unplugging it. idk, I've been impressed with it so far.

oh and my comment about losing battery while was directed towards the guy who went from 100 (97) to 79 while not doing anything
[Nexus S General] slowz3r:
Has anyone given sammy a ring asking about replacment batteries. like cost and such?

Maybe there are larger than 1500mah batts out there floating around on the interweb