yashsingh1/xdaforums huggingface dataset:
[Nexus S General] jankyboy:
I find my battery drains faster in areas where i have spotty coverage, which seems to be in my office and down on my chair in front of the tv ;) Yesterday I left it connected to wifi the whole day and battery life was amazing!
[Nexus S General] rashad1:
My battery has been mediocre at best, averages about -10% per hour with , light to medium usage with brightness set to below 50%

The last 10% or so I switched to EDGE to preserve battery life, and I also downloaded this app called "Green Power" which cuts off the data when you lock the phone. We'll see how that goes.
[Nexus S General] rashad1:
$7 OEM battery from Amazon:

http://www.amazon.com/Samsung-Stand..._1_7?s=wireless&ie=UTF8&qid=1292545002&sr=1-7
[Nexus S General] slowz3r:
ya i know that, but sorry i have reservations about sticking a 7 dollar battery in my 600 dollar phone. that is prolly defective in someway and was sold to someone at wholesale prices...Ill be damned if im on the phone and i get my hand blown off cuz some 7 dollar deffective battery
[Nexus S General] rashad1:
It's illegal to knowingly sell defective batteries, unless you like lawsuits.
[Nexus S General] slowz3r:
it is the internet afterall. you never know.

I was reading that the battery was 1440mah
[Nexus S General] cilcin911:
i dont understand why we have a thread like this in every forum

everyone has a different idea of light, medium, and heavy usage

one good way i found to gauge battery difference is Screen On usage

with background sync off

brightness: 0%

and none of my app polling for data

it really doesnt matter how long its been idle, it really comes down to actual phone usage

on average I get about 1 hour 30minutes to 2hours at 50% which is almost the same as my previous phone, the Captivate

and yes I do know that some phone activity like browsing or gaming waste more, but its within reasonable range

You can easily view by clicking on display in the Battery Usage

[attachment]

***and according Rashad1 battery usage upload***

by doing a quick analysis by combining all the screen on bar together (yellow)

it about 28-30% activity which is about 3 hours and that similar to what i was getting the first couple days of using the phone (i got 4hours @ 7%)

decent battery life considering the brightness setting is a lot brighter than mine
[Nexus S General] rashad1:
My brightness was at 30% for that majority of the day, that's pretty dim. Especially outside.
[Nexus S General] DKYang:
Just giving my input.

- Barely used it.

- Gmail, contacts, calendar syncing was always on.

- Parcel (track packages) syncs every 8 hrs.

- Used Kakao chat app a little bit. Opened it about 10 times since it's not made for Gingerbread yet and having errors.

- Played couple of moves on Wordfeud.

- Played 2 rounds of Angry Bird.

- Couples of calls and text.

- Wifi and GPS off.

- Alarm played a song couple of times.

I might have missed something there, but the phone lasted 24 hrs with about 30-something percent left. Granted, this is light usage since I barely used the phone and the screen was off most of the time when not in use.
[Nexus S General] RogerPodacter:
I still find this true on my nexus one. If I use WiFi all day, my battery like is beyond superb. I went from 100% to 89% in 12 hours. But as soon as I go out onto 3g, I lose 15% an hour just doing nothing.

This week I added graphing to my app in my signature, graph voltage vs current, then went out and did some tests.

On 3g the current draw sky rockets when an email comes in, data transfers, etc. But on WiFi the current draw stays flat as can be for those same tasks. That tells me 3g data just kills it.
[Nexus S General] zomgzombies:
Dialer Using 18% of Battery

Anyone have an issue with this? I RARELY make calls but yet the dialer is listed right under Display in battery usage.
[Nexus S General] mikeruoc:
Yes I have had this happen also. It seems like when I pair a BT device the dialer goes wild and and eats awake time and battery. I just keep and eye on it now and reboot the phone when I pair a new BT device.
[Nexus S General] rashad1:
I've been using my Nexus S lightly for just under 7 hours (meaning it was unplugged for 7 hours) and its almost dead :'(
[Nexus S General] zomgzombies:
i never use bluetooth. My friends phone does not have this...totally weird.
[Nexus S General] zeeklancer:
Solved Battry issue.

Okay, so the battery on the NS is good and I got better performance than on my N1. But it still was not awesome. The cool thing is that 2.3 gave me the ability to track down what apps were taking so much juice and I was able to correct it.

First off, my NS hardly ever was "sleeping" the "awake" status was always very high. Thus causing lots of battery drain. Now that I have tracked down the apps causing the problem my phone sleeps much more!

Okay, so I found that Google Voice, and Maps (mainly if connected to latitude) were causing my phone not to sleep. So I turned off Google Voice and signed out of latitude in the maps application and now have awesome battery and I can see that my phone actually sleeps.

Thought I would pass that along.
[Nexus S General] irishrally:
Good intel, thanks.

By any chance did you try disabling one at a time? I don't use Latitude and would like to continue using Voice.
[Nexus S General] leyvatron:
Good Stuff.

When battery life is good and a update from an app is released, sometimes that update sucks up more battery.
[Nexus S General] zeeklancer:
I plan on putting GV back on, but it had more than a few times shown up as over 50% of usage, and higher than display. And i only use it to notify me that I have a voice mail.
[Nexus S General] Memnoch30:
Same thing here and I don't use bluetooth either.
[Nexus S General] zomgzombies:
Can't confirm. I use lattitue and Google voice. Both don't shoe up on battery usage. My dialer is using 18% and the rest are below 8%. Only thing higher is the display.
[Nexus S General] rhca50:
+1

I have both enabled 100% of the time, and they usually don't even make the list. If they do, they're near the bottom.
[Nexus S General] savante:
Like the op, I had terrible battery life and seemed to have tracked down my issues as well.

My first offender was Handcent using something like 16% of battery life and keeping the phone from sleeping. I uninstalled and switched to chompSMS.

The next issue was with google maps also sucking up battery life and keeping the phone from sleeping and like the op, I logged out of latitude and that behavior stopped as well.

Finally, I noticed shopsavvy was eating my battery and frequently using gps, so I uninstalled that app.

I'm also using Green Power and yesterday after 15 hours off the charger with normal usage (texts, email, etc) I had about 30% battery life left.
[Nexus S General] onthecouchagain:
Just to clarify, when you guys are checking for these rogue apps, you mean what's under the "Running" tab in Manage Apps, correct?
[Nexus S General] civicdrivr:
Another culprit is NoLED if you leave the timeout setting off.

Id get a text in the middle of the night and the screen would be on for hours. Ive since dropped it to a 5 minute timeout and my battery lasts on average 25 hours with normal use.
[Nexus S General] distortedloop:
My phone's been on battery for 29 hours according to the battery history display (but it was on the charger for a couple of hours this AM, so it's clearly not accurate.

Google voice doesn't even show on the list, and I use it exclusively for text messages and voice mail. I have it set to synchronize the inbox as well.

I don't think there's a blanket statement like GV is the cause that will hold true on everyone's phone.

General advice is always just to use the battery history and Spare Parts (if they get it working on Gingerbread) to see what on YOUR phone isn't closing properly.
[Nexus S General] hollywood_jack:
Hi guys,

I saw this: when I launch the System Panel app the cpu usage is always 100%, this it's the cause of the battery issue... but because the CPU clock is always 100%?!? :confused:
[Nexus S General] RogerPodacter:
Something is wrong if you see 100% CPU all the time.
[Nexus S General] AndyCr15:
I've noticed the device is kept awake for long periods (the awake bar is solid) hence I search and find this thread. I've just logged out of Lattitude, I'll see what difference it makes.

Surely Google's made a mistake if it keeps the phone awake the whole time? I wonder if this is really the case on earlier versions?

Myself, I think the battery stats are far more accurate in 2.3.
[Nexus S General] RogerPodacter:
I'm curious about latitude as well. I use it all the time with no issues. Historically all official Google apps are coded dead on by the text book correctly using onPause, onResume, etc. So just take a look at the code. It's very much unlikely that any Google app is coded wrong or keep the device awake in such a way.
[Nexus S General] Zorachus:
Looking up my battery use;

7h 26m on battery

- Display 30%

- Voice Calls 20%

- Dialer 14%

- Google Voice 14%

- Android System 8%

- Android OS 4%

And bunch of misc stuff at 2% or less. Why do I show two different "voice" calls ?

And I am one of those guys that actually uses his phone as a telephone, to talk to people with it. I know that seems to be a strange concept to the kids today. But I can't seem to understand how people don't use their smartphone to make calls much anymore ? I am in sales and speak with clients and vendors a lot of the day time.
[Nexus S General] zomgzombies:
i barely make calls and sometimes my Dialer consumers 20%
[Nexus S General] tempera:
Google services draining battery

Hello, google services is draining my battery, it is using the most battery percentage, display is 2nd.

How do I take off google services?

Thanks
[Nexus S General] slowz3r:
prolly wouldnt be the best idea to "take off" google services, you may wanna restart your phone and see if that helps if it doesnt do a factory reset
[Nexus S General] RogerPodacter:
You just log out and un sync your Google account in the settings menu. But i doubt its doing that much draining. If you use your phone very lightly then the display won't be that high and would get over taken by the next item, but that's not really bad.
[Nexus S General] jthornton71707:
Yahoo mail app &battery life??

After fiddling with this phone I've noticed when using the yahoo email app rather than the stock that it seems to drain the battery quicker. Anyone else have any thoughts on this?
[Nexus S General] jthornton71707:
I've just started having this problem today as well. Google voice are at 22% and gmaps are at 12%. Any solutions???
[Nexus S General] slowz3r:
ya today GVoice was using 75% of my battery when I woke up, solution that i found, clear data/cache and dont complete the set up again
[Nexus S General] ravidavi:
If you have Latitude turned on, then google maps will take up a good bit of battery. I only turn latitude on if I'm going to a crowded location (in case the phone gets lost/stolen), but keep it off otherwise.
[Nexus S General] Kayatoast:
That is because Yahoo mail defaults to turn on notifications for email and this keeps the system awake more often. Go to settings and turn notifications off. It should help
[Nexus S General] jthornton71707:
Best battery app for nexus s??

The phone hasn't been out that long. I've tested a few apps but some are restricted to 2.2 or lower. From your experience are their any apps that significantly increase the battery life on your nexus s???
[Nexus S General] Sly Bastard:
I use Battery Life and seems to work really well. Also can customise it a little.
[Nexus S General] tominater12:
you don't need one.
[Nexus S General] jthornton71707:
Dialer app draining battery, fix?

I've looked but can't find a fix. I've made a 10 minute phone call all day and under battery use at the end of the day it says 29%.... brightness is top at 35%... I've been using for about 12 hours now and I'm at 20% is there a fix for this???
[Nexus S General] mr mystery:
Dont call anybody?

JK:D, good question it seems it uses a good percentage of my usage as well
[Nexus S General] jthornton71707:
There is no fix for this? Nobody else having the issue?
[Nexus S General] nohcho:
You're holding it wrong?
[Nexus S General] burtmann:
I have the same problem.:confused:
[Nexus S General] jthornton71707:
No fix?
[Nexus S General] SooSpecial:
"Android OS" using 30% of battery

Hi,

I just noticed that "Android OS" tops the battery usage list at 30%, 2nd is the Display at 27% and 3rd is Maps at 14%.

My battery usually drains %50 over night while doing pretty much nothing. I have an Exchange account setup and a couple of Gmail accounts.

How can I stop this Android OS from eating my battery? I tried taking the battery out and rebooting the phone countless times. It's still there.

Cheers.
[Nexus S General] SooSpecial:
One more thing, Maps seems to be stuck there at 14% as well. I tried to kill it/FC multiple times with no luck. What the heck is going on with GB and NS?
[Nexus S General] Belarios:
I've been having some battery issues as well. And I've also seen maps on the running process list even though I've closed all-maps related applications. I also see the gps icon pop up for a little while sometimes when I'm doing something like web browsing.

Something is doing location-type stuff and probably draining my battery.

I removed all my unnecessary apps, deleted all unnecessary files from storage, and disabled all unnecessary settings, and my battery performance went back to being very good. It could have been a rogue free app. I disabled latitude among other things.

Tough to know what solved the problem.
[Nexus S General] SooSpecial:
Thanks for the reply.

Maps won't go away no matter what. What do you suggest I do? And this damn "Android OS" won't go away as well. I've killed pretty much everything and still the problem exists.
[Nexus S General] distortedloop:
Latitude certainly causes a lot of people battery grief; that seems to be the usual cause of Maps constantly running and sucking up juice.
[Nexus S General] ravidavi:
Regarding Maps: Sign out of Latitude (that's a big battery hog), and turn off tile prefetching (Maps->Cache Settings). That should make it so Maps doesn't do any work while in the background.

Secondly, you need to understand that the Android OS is, well, the Android operating system. How could you expect it to "go away", if it's the thing running the entire phone! :)

The battery usage screen tells you the proportion of battery used by different services/apps. So if you were running absolutely no apps (including background services that start automatically), and had the screen turned off, then naturally the Android OS would be the only thing using the battery. So it would show up as 100%. Make sense?

In absence of other battery-intensive apps (pandora, games, etc...), the Display and Android OS will always be the top 2 battery consumers.
[Nexus S General] SooSpecial:
The OS using more battery than the display - that doesn't make sense.

I did a factory reset and now the readings are back to normal. Display at 31% and Android OS at 3% - now that makes sense.

Cheers.

PS. by "going away", I mean making it to down the list.
[Nexus S General] jspare:
I have the same issue as well. It did not happen for the first few days I had the phone.
[Nexus S General] cyc1120:
[Q]Help! Media process is sucking all my battery!

So I noticed that my phone has been constantly trying to download stuff. I'm on a unlimited plan so I don't really care about the data. However, the downloading sucks the life out of my battery very quickly. I tried to let it download for a 2 days. I was hoping that it'll finish download whatever it is trying to download but it just never stops. :mad:

I looked at the battery useage to see what app is causing all of this. All I see is that Media is doing it (see attached pic).

I tried to use traficstat to see which app in particular have been downloading but I don't see any abnormal downloading activities from any apps.

Did that ever happen to anyone? Anyone might know what's going on? :confused:

Thanks in advance!
[Nexus S General] c_licious:
The same thing happened to my friends MyTouch 4G. Was caused by a corrupt file on the sd card (probably one of his pictures). Formatting the sd card fixed the problem.
[Nexus S General] cyc1120:
Thanks!

I'll try deleting random files on my sd card to see if it fixes anything. Otherwise, I'll format the sd card
[Nexus S General] gogol:
Battery usage history not reset?

I found something strange on battery usage info:

Settings -> About Phone -> Battery Use

When this info is reset?

Because, I don't think it has correct / actual information.

Last night, I fully charged my phone until 100%.

Then down to 94%, that's normal.

I checked the battery use info and I found (Sygic) Aura 29%.

Ok, I was using Sygic before. And the reason it is there, probably because I have not rebooted yet.

So, I rebooted the phone.

Go back to the battery use history ... and it is still there!!!

The thing is, I don't see Aura running. It does not have background service.

Now, anyone can explain this?
[Nexus S General] lefty83:
Q: How's battery life after using device for a while?

I'm currently a DHD owner but planning to sell it to get a Nexus S mainly due to "bad battery" drain on my DHD. I do get good usage from the DHD but in order to archive this I need to limit the usage, have auto-sync's off and keep it on standby etc...now I wonder if some people that have been using the Nexus S for a while now can comment on the battery life, like if you browser the net for 1hour on wifi or 3g, how much battery do you loose?
[Nexus S General] gumbottoms:
I noticed this also. It bothered me until I figured out it resets when you charge the device back to full 100%
[Nexus S General] gogol:
I did that, it was till 100% ... and I rebooted as well.

Strange, because of this, I don't think we can trust that info.
[Nexus S General] :
it happend once tome. Just replug it usb again until it says charged than take off it will be reset.
[Nexus S General] icandy75:
I formally owned a Vibrant that had horrid battery life. Currently overclocked running Bionix and 1.3 Trinity kernal I was getting about 12 hrs. of heavy use. I have 5 widgets going, wifi almost always on and syncing 6 emails. I spend about 2 hrs surfing the net, 3 hrs of the 12 texting, 2.5 hrs on the phone and even have enough battery to play a few games. I can say it is much better than most smartphones I have owned in the past.
[Nexus S General] Smilez_c:
Mine seems to have improved somehow....Maybe is just me
[Nexus S General] cyc1120:
So... formatting the usb drive doesn't work. :(

I guess I'll have to do a factory reset tonight :mad:
[Nexus S General] AllGamer:
guys we don't need like 10 topics of the same issue tracking down the apps that sucks dry your battery

please keep it all in this topic

it will also make it easier for other people to make reference

topic stickied for all those that can't find this info when they "search"
[Nexus S General] gogol:
Well, my original thread:

http://xdaforums.com/showpost.php?p=10666479&postcount=138

was not about tracking apps, until the mod merged it into this thread.

It was about the battery usage information which is un-reliable and not correct.

I just want to warn people about this, so they would not really depend on that information.

Until now, the Aura is still listed at 23% while in fact, I did not use it after the phone was charged to 94% AND rebooted. Checked with Android System Info, there is no Aura task nor service running.

Another bug I would say ...
[Nexus S General] AllGamer:
i noticed the same bug, as well, it always shows my CoPilot software as the top usage, even though i'm not using it

also the voltage change and jumps around erratically which i mentioned in another topic, but no one seemed interested about this bug

those usage info might be wrong

but the Time used for each item like "Display Time" & "Cell Stanby" are accurate

so it's still a good source of info, to check what has been eating up the battery, the only thing that is not accurate is the % of the apps & services running
[Nexus S General] stiefa00:
hi nexus bros! how long does your nexus s need to load fully? mine needs about 5 hours until its battery loaded fully. the phone is switched off and it is connected to a electric socket. but thats to long. i think something is wrong. :(

i got my nexus s forum usa.

so, how long does your nexus s need to load fully?
[Nexus S General] TonyHoyle:
Not hard to believe at all.. I regularly get 40+, and that's with everything on and VOIP in answer mode as well.

I love the battery life on this phone :p
[Nexus S General] sinatosk:
whats your "Display" "Time on"?
[Nexus S General] smaberg:
LOOK HERE!

the battery in the nexus s, is somehow spooky, i borrowed my friends NS (i have one to) charged them over night, did exactly the same installations, surfing (wifi) 2hours, calling 30 minutes, sending 27 sms. played angry bird for 20 minutes :) , watched youtube for about 20 minutes. all sync was on, no push email though... on them both. guess the resault??? (read on)

did the above to, but with 2 Galaxy S (my former phone) and GUESS, yes thats right exactly the same resault as for the nexus S.

NS = 1 phone died after 22hours and the 2 phone died after 47hours

GS = 1 phone died after 32hours and second went all the way to 70hours (did run custom rom on theese)

kinda strange don't you think :confused: any one got a clue on whats causing this strange behavior :confused:
[Nexus S General] cyc1120:
For people who might have this problem in the future: I tried to clear the "DRM Protected Content storage" data from application settings and it seemed to have fixed the problem. :D
[Nexus S General] stiefa00:
how long does your nexus s need to load the batter fully?
[Nexus S General] KidCold:
anyone know why my cell standby is taking up a majority of my battery?:(
[Nexus S General] RogerPodacter:
that would be a good thing if you used your phone rather lightly, then cell standby is exactly what should be the highest. remember its only the percent used of the total battery percent used. so if cell standby says 35%, but your battery only dropped from 100% to 95%, then cell standby only used 35% of that 5% drop.
[Nexus S General] distortedloop:
Have you tapped that line in the display to see the details?

On other Androids I've seen cell standby usage very high when in poor signal areas, and the details screen shows a % of time without signal indicator. Seems like the radio bumps up the juice looking for a signal to latch on to.
[Nexus S General] mishkasf:
Battery Drains Way Too Quickly on Nexus S

I've had Nexus S for about a month now, and I'm noticing that any time I'm actually actively using the phone, the battery charge literally evaporates right in front of my eyes. Today I tracked all my activities and here's what I've got:

* Phone charged to 97% (actually it was charged to 100%, but as explained here there's something fishy w/the charge method in Nexus S, so as soon as one unplugs it from the charger, the charge drops to 97%.

* 2h 49min later -- phone showing 37% battery remaining!!!

Here's a summary of what I did:

Sign into Y! Messenger, send ~5-6 IMs

Listen to 45min of randomly played music

Made 3 calls: #1 - 33min long, #2 - 10min long, #3 - 5min long

Used GMaps on 3 different occasions to look up several addresses, each time for no more than 1-2 min

Modified 2 calendar entries, each time taking no more than 2 min

Took 2 photos with no flash

Sent an email using GMail app attaching 2 of the photos that I just took, and adding text (max 3min)

Exchanged 4 SMS's with a friend

According to the phone's tech specs, it shouldn't have used as much as 50% of the battery, much less 3/4 of it? Anyone know what's going on? Btw, pre-empting questions on Y! Messenger -- pretty much the same battery drainage pattern happens even when I'm not using it.
[Nexus S General] csmall:
The Nexus S actually has the best battery life of all the Android phones I've owned.
[Nexus S General] mishkasf:
That still doesn't answer my question -- is it supposed to drain 63% of the charge in <3hrs of light usage?