Develop Bugs

My battery stats after 1st full day of normal use.

Switched on 8am, more than average use.
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Sent from my Galaxy Nexus using Tapatalk

links are just blocked at work, nvm.

Links working fine here...
That's probably what I'd get out of my NS if I used it fairly heavily... the display is a battery killer on that too. So about average, then.

Don't know what happened to the quality though,looked OK when I took them!
Hoping when this mobile data problem gets sorted battery life may increase as my phone was all over the place today!
Sent from my Galaxy Nexus using Tapatalk

Ouch, thats some serious drain. I was hoping for at least 18hrs. Still not a deal breaker for me.

Gosh, why is yours so much better than mine. Feeling like I have a dud here :/

3 hours damnm

Thats right around what I get on my charge on 3g only.
Sent from my SCH-I510 using Tapatalk

2H 55 of screen time looks to be pretty lacking if I'm not mistaken?
The Galaxy S II video run downs get like 8H or 4H on web browsing.
But yea, diff situations

Your pictures are broken can't see any of them.
Edit: 3h screen on sounds pretty normal to me. Depends though on the brightness of the screen.

pewpewbangbang said:
2H 55 of screen time looks to be pretty lacking if I'm not mistaken?
The Galaxy S II video run downs get like 8H or 4H on web browsing.
But yea, diff situations
Click to expand...
Click to collapse
Those are completely different. They start with a full battery and just play videos or browse the web for that amount of time. With this he was using for the phone for random things and still had the screen on for 3 hours.
On that note, how is it possible to have the screen on for 3 hours of a 12-hour day? You literally spent 1/4 of your day looking at the screen? Do you not have a job? My phone sits in a dock on my desk, but I probably use it around 15 minutes per day while at work, and then another 45 min or so after work (so total screen time, if it wasn't sitting in the dock, would be around 1 hour for an 18 hour day).

pewpewbangbang said:
2H 55 of screen time looks to be pretty lacking if I'm not mistaken?
The Galaxy S II video run downs get like 8H or 4H on web browsing.
But yea, diff situations
Click to expand...
Click to collapse
Those run down tests are from 100 to 0 doing 1 thing. This is throughout the day. The phone is still draining when the screen is off.

yea i understand.....but basically the screen time is how long the screen has been on throughout the day correct?
I had a galaxy S and it used to get like 4-5 hrs of screen time throughout a 12hr day. With the extended battery i could get about 6-7hrs of screen time.
Now on the iPhone 4, i get 2hrs of screen time with 80% battery left and had a standby of 6hrs. But yea....its iOS
Idk, 3hrs of screen time seems ehh to me. Im still probably gonna get the phone though, tired of iOS once again. Went from 3GS to Galaxy S to iPhone 4 and now possibly Galaxy Nexus....or wait for GS III

Wifi radio power on all day?

Several people who've had the phone for a few days have said the battery life gets better after a few charging cycles.

Calibrate the device, leave it off then charge it till it's full. Then use it till it is dead, then charge it again while switched off and keep doing that for the first week when you buy a device any device that uses a battery. I've always done this to my phone and my wife's sometimes friends too. After that the battery is calibrated, then if something goes wrong with the drain you would know, or if the battery life actually sucked Case 'n point EVO 4G.

yea, 3 hours used 56% of the 85% of the battery that was used. so really should be able to get 5 to 6 hours of just screen on time.

I uninstalled my virus protection yesterday and turned off sync and wifi whilst at work today about 11am and battery stats better today. Haven't been in a low signal area today so no problems or slowdowns caused by 2g/3g.
Taken off charge about 9.30am
Wondering if its the virus protection taken off or disabling sync and Wi-Fi or the fact I was in 3g area all day that's improved it.
Sent from my Galaxy Nexus using Tapatalk

Signal strength is usually the main problem I have...
Is there a native ability in ICS to disable WiFi scanning? ie - Leave WiFi on, but disable scanning for networks...

OP, I'll bet your batt life would be 3x better with something like Tasker managing your Wi-Fi connection.
IMO, BEST.ANDROID. APP. EVER.

Have you managed to get over a day of battery life?

The phone is great but the battery really bothers me.
If I use my phone a bit it doesn't get me through the day. Sometimes i get as low as 8 hours of use with tops of 20 or so hours.
How do you manage it?

Fking1 said:
The phone is great but the battery really bothers me.
If I use my phone a bit it doesn't get me through the day. Sometimes i get as low as 8 hours of use with tops of 20 or so hours.
How do you manage it?
Click to expand...
Click to collapse
I use an Apex kernel and a 2000mah extended battery

Mines been great. Yesterday I was at 17+hrs which included over 3hrs of screen time and 1 hr of voice calls. I've only had my phone for less than a week, and have twice gotten over 4hrs of onscreen time (all with stock battery).
Running AOKP Milestone2 ROM with stock kernel.

I about a day and a half nearly 2 with stock and moderate use.
Batteries pretty damn good, you must have something installed that's eating it up. There's a good battery guide somewhere on these forums, usually helps track down the cause.

I usually get about 3 hours of screen time before I need to recharge. That should be normal.
Sent from my Galaxy Nexus

AOKP + Franco kernel + 2000 mAh

Got two days of battery life just now (1 day 20 hours, to be exact). That's with 2h18m of screen time and 4h2m of voice calls. Screen time is mostly due to text messaging, Facebook, Foursquare, Twitter and Google Currents, so I guess... light to moderate usage?
WiFi is always on, Data is off, Sync is on (except for FB sync), location services off. Didn't sign out of Talk, but did sign out of Latitude.
Also, since I installed Facebook, when you run it for the first time, it downloads a lot of background data, regardless of sync settings. I let it do its thing while it's still charging, and it was all good after that.
Using AOKP b20, Franco 13.1, and stock battery.

36 hours is the most I've gotten out of the phone, but I did screenshot this not too long ago.
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I never get more than a day, but i use my phone very much because studying without my gnex is boring. I have the original gsm battery.

Fking1 said:
The phone is great but the battery really bothers me.
If I use my phone a bit it doesn't get me through the day. Sometimes i get as low as 8 hours of use with tops of 20 or so hours.
How do you manage it?
Click to expand...
Click to collapse
I would say the stock battery is borderline adequate. I find that on the stock system, if I use the screen for more than 3hrs, and have all my services sync'd, bluetooth, a few calls once in a while... I would have a hard time struggling to get to the end of the day without the phone giving me a battery warning.
How I've managed it is to get the samsung 2000mah extended battery. It's not a dramatic difference, but enough to make it noticable.
As well, I've kept the screen to about 40%, used a dark wall paper, loaded franco kernal and tweaked some of the settings to be more battery efficient.
Overall, I think it's acceptable right now. At least for how I use it.
I also find that my battery drains quite a bit where I work as the cell signal is on the borderline between no signal and 1-2 bars. That's why I keep a charger at work as well as in my car to give it some extra juice.

I find the battery is actually quite good.
I upgraded from a blackberry tour, and with similar moderate use the nexus actually gets me more battery use. However both phones being idle the blackberry lasted for days.
Overall i'm never away from a power source i can charge my phone, so as long as it lasts me roughly 1 day i'm good

Stock battery
Rom: aosp self-built from aosp master branch
Kernel: at the time, franco's nightly #8 or #11, can't remember exactly
Usage: light (3h screen on)
Went almost 3 days on one charge.

Nerfsuperball said:
I find the battery is actually quite good.
I upgraded from a blackberry tour, and with similar moderate use the nexus actually gets me more battery use. However both phones being idle the blackberry lasted for days.
Click to expand...
Click to collapse
If you can't get days while idle with your GN, then something is definitely wrong.

vapotrini said:
If you can't get days while idle with your GN, then something is definitely wrong.
Click to expand...
Click to collapse
Honestly I can't say I've let my gn be idle for days. Its far more useful then my bb was.
Sent from my Galaxy Nexus using XDA App

I don't have a nexus yet but would like to know if switching to 3g only improves the battery length significantly?
Sent from my R800x using Tapatalk

two days. Medium use.
Sent from my Galaxy Nexus using xda premium

I got my nexus 4 days ago.. Since then im harassing my phone.. Literally.. Im constantly installing application, customizing the homepages, making icons, widgets etc, surfing on web, exploring the market. 100% of time, Wifi or mobile data is in use (although i got unlimited data plan here (with speed of 4 mbits and 1 mbit upload), my wifi is more faster than mobile data.).
So i havent had a day with "normal" or "moderate" use on my GN.. And, battery lasts for over 24 hours.. And, autosync is always on, brightness is on 40% aprox, screen sleep 45 seconds (basicly its not sleeping cause im harassing it all the time )
Im all stock to the bone, just unlocked bootloader and rooted..
Im wondering what will happend when i start using my phone with moderate usage ..

Hmmm there are some interesting answers on this thread. The battery and the low sound have been the sole disappointments for me on the GN.
I get about 3.5 hours screen time before i have to recharge.
I guess if i turned everything off i could get better performance battery wise. But why would i spend almost $300 on a phone only to not use it? I am complete stock at the moment because i don't want to void the warranty but while i waiting for 4.0.3 i will be regularly using the hell out of my phone with a spare stock battery.

batteries have yet to perform at the level of the rest of the hardware, it's a fact. bear with it like the rest of us. of course we bought the phone to use it.
if you need battery life above all, turn off sync, it will do wonders.
personal pref: for more available resources, uninstall that widget crap, homescreens full of that i dont know whats the point of using them, even multiple homescreens, i rather have really important stuff on the launcher and just one homescren, black bg, no widgets. these are cpu and memory hogs, as well as 3rd party task killers, system monitors... keep it simple. less is more.

I assume no more than a day on my gn, but, as stupid as it sounds if you turn off the 3g and only enable 2g you improve your juice a lot. Most of the time we only need 2g.

Spontaneously improving battery?

Is it just me, or is the battery spontaneously getting better? I don't use any juice defender or battery-saving apps, no setcpu, I have 4g data (not in an lte area), wifi, push email, a live wallpaper, and gps enabled (though it only comes on only when maps uses it, of course) at all times with normal automatic brightness on the screen, and I'm on stock rom, and I swear the battery lasts longer and longer all by itself. I used to get maybe 14-18 hours of moderate use, but now I get a little over 24 hours. Super heavy use, (and I mean streaming, screwing with framework-res.apk, backups, installs, etc) I get at least 12 hours, and if I'm using it lightly (still texting 10/20 times a day, push email, web browsing maybe half an hour a day, maybe a couple 5/10 minute calls), I get a day and a half, sometimes almost two days, like below:
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I don't think it's the battery, since I have two and they behave very similarly, so I'm not really sure what it is. Even when I visited some friends in a lte area, with lte active, moderate use, I was still getting around 16 hours. Anyone else experiencing this sort of... healing battery?

Pretty obvious your phone is draining heavily when in a lower signal area. Also, you have a TON of wakelocks. Not sure what you're running on your phone but there's something or many things keeping your phone awake despite your screen barely being used. I would expect my phone to last 3 days with that kind of usage...

Well, like I said in my other posts, the phone seems to improve itself in its battery usage. The first 2-3 weeks, I could barely hold charge for a whole day. Now, almost 2 months later, I can leave the phone uncharged from morning till nite with average use and still manage 5-10% left charge.

Haha, well, you're probably not going to get three days out of a nitro. Sorry! =)

itiskonrad said:
Is it just me, or is the battery spontaneously getting better? I don't use any juice defender or battery-saving apps, no setcpu, I have 4g data (not in an lte area), wifi, push email, a live wallpaper, and gps enabled (though it only comes on only when maps uses it, of course) at all times with normal automatic brightness on the screen, and I'm on stock rom, and I swear the battery lasts longer and longer all by itself. I used to get maybe 14-18 hours of moderate use, but now I get a little over 24 hours. Super heavy use, (and I mean streaming, screwing with framework-res.apk, backups, installs, etc) I get at least 12 hours, and if I'm using it lightly (still texting 10/20 times a day, push email, web browsing maybe half an hour a day, maybe a couple 5/10 minute calls), I get a day and a half, sometimes almost two days, like below:
I don't think it's the battery, since I have two and they behave very similarly, so I'm not really sure what it is. Even when I visited some friends in a lte area, with lte active, moderate use, I was still getting around 16 hours. Anyone else experiencing this sort of... healing battery?
Click to expand...
Click to collapse
aquariuz23 said:
Well, like I said in my other posts, the phone seems to improve itself in its battery usage. The first 2-3 weeks, I could barely hold charge for a whole day. Now, almost 2 months later, I can leave the phone uncharged from morning till nite with average use and still manage 5-10% left charge.
Click to expand...
Click to collapse
My experience is the same, the battery efficiency improved over the 1st month + of use.

My understanding is that rechargeable batteries have a "break-in" period, where it takes maybe a dozen or so cycles of (dis)charging to reach peak performance.
It seems with our batteries it just took a bit longer to reach its' peak.

Namuna said:
My understanding is that rechargeable batteries have a "break-in" period, where it takes maybe a dozen or so cycles of (dis)charging to reach peak performance.
It seems with our batteries it just took a bit longer to reach its' peak.
Click to expand...
Click to collapse
I agree. That is phenomenal battery life iamkonrad compared to what I've been experiencing..
Oh, when are you going to share those status bar goodies with the rest of us. ;]

If I'm not mistaken android collects battery stats, that uses to more accurately detect battery life. Perhaps that's the case here? If you clear batter stats with CWM, you should see different results.

could you also put screenshot of display usage. display takes a lot of power

idea
What would really be nice is if somone would make a thin case with a slim solar panel in the back of the case, you could lay it face down and have it charge from your office lights or at least supplement the battery... lol

How about make the screen itself a solar panel?
Well looks like it's already been thought about: engadget.com/2008/05/26/apple-files-patent-for-solar-cells-on-portable-devices/

Solar panels of that size would provide a minimal amount of juice to the device. It wouldnt really be worth it until photovoltaic efficiency improves..

debugger919 said:
How about make the screen itself a solar panel?
Well looks like it's already been thought about: engadget.com/2008/05/26/apple-files-patent-for-solar-cells-on-portable-devices/
Click to expand...
Click to collapse
That article was written 4 years ago... Looks like Apple couldn't do it, or didn't want to.

BeatByte said:
That article was written 4 years ago... Looks like Apple couldn't do it, or didn't want to.
Click to expand...
Click to collapse
Perhaps 2.5x5 solar panels are not able produce 1.1A juice.

hi itiskonrad. could you tell me what is the name of your battery monitor?

I don't have one. What I'm showing is just the battery info under settings, about phone

If I had better service...

I wonder how much better my battery performance would be if signal didn't sick so bad at the office.
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Sent from my Galaxy Nexus

lilfleck said:
I wonder how much better my battery performance would be if signal didn't sick so bad at the office.
Click to expand...
Click to collapse
A lot.
I usually lose 3-4% over night (9h) with perfect reception. Last x-mas I was at my gf's home on the countryside with barely 1 bar of reception and ~50% no reception: Lost 30% over night. Both times connected to WiFi.

I feel your pain... though mine is not as nearly as bad as yours.
Do you have the option to connect to wifi at work? That should help if it's available (and/or allowed).

bowsersoulstar said:
I feel your pain... though mine is not as nearly as bad as yours.
Do you have the option to connect to wifi at work? That should help if it's available (and/or allowed).
Click to expand...
Click to collapse
I'm not the OP, but having WIFI doesn't help/hurt my battery life at all when the phone is idle. I also have bad reception at work (and at home), but not nearly as bad as the OP. Even with my poor reception at home, I only lose about 1% an hour at night with about -90dbm of service.

lilfleck said:
I wonder how much better my battery performance would be if signal didn't sick so bad at the office.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Not really all the phones fault. Your office is the main cause. My office gets horrible reception. I keep a charger at my desk...
Sent from my Gummy Nexus

Simple, but have you tried just disabling 4G while at work? I get 4G at work, but barely. This made the difference for me.

Battery life with great signal and hardly any congestion is almost comparable to wifi. During Xmas break there were hardly any people downtown Houston and I got almost 5 hours display twice with ~10% left still.
Sent from my Nexus in Texas.

tighr said:
I'm not the OP, but having WIFI doesn't help/hurt my battery life at all when the phone is idle. I also have bad reception at work (and at home), but not nearly as bad as the OP. Even with my poor reception at home, I only lose about 1% an hour at night with about -90dbm of service.
Click to expand...
Click to collapse
In that context, you're correct. -90dbm isn't the best of signal service but it's not equivalent to having no service period (per OP's 60% missing signal) But I'll disagree on the front that it does not help battery life if he's missing signal 60% of the time.
Case in point, I get absolutely no data reception at my mother's house. Phone itself is constantly searching for service which has been a huge battery drain; idle or not.
That 60% he's not having any signal, phone (and consequently apps that are also trying to utilize data) do contribute to a big battery drain.
Being on WiFi remedies that a bit.

lilfleck said:
I wonder how much better my battery performance would be if signal didn't sick so bad at the office.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Your phone is likely defective and you should exchange it.
I used to have high % of time without signal like that... then I exchanged my GN for a new one and it's got signal close 100% of the time.
Do you drop connection when trying to use data?

pdanders said:
Your phone is likely defective and you should exchange it.
I used to have high % of time without signal like that... then I exchanged my GN for a new one and it's got signal close 100% of the time.
Do you drop connection when trying to use data?
Click to expand...
Click to collapse
Rather than going to such a drastic measure of returning the phone, why not simply flash a new radio?

tighr said:
Rather than going to such a drastic measure of returning the phone, why not simply flash a new radio?
Click to expand...
Click to collapse
I tried that with my first phone... It made no difference.
The lady I talked to at verizon support was pretty open that there was a batch of bad GNs out there. Definitely no harm in trying a new radio.. but don't wait too long if it continues to perform like that.
The difference between my old and new phones are night and day. Old one would drop connection every 20 minutes (and usually more often than that). The new one hasn't dropped connection one time in over a week

Get the app called No Bars that puts your phone into airplane mode after how ever many minutes you want after the phone doesn't have signal. The app also has a setting to to automatically keep checking for a signal after how ever long you want it to. I used this on my EVO4G with Sprint but I don't think I need it any more with verizon so I don't know if it works on our phones.

It's definitely because of my office. However, I had a droid x that had better/stronger signal than my GN. I just flashed the 4.0.4 radio that came w/ Codename's latest ROM. Bars appear to be one notch higher on 3g, (0 bars to 1 bar). But the signal strength is exactly the same.
This is my first full day on 4.0.4 radios and my battery is fantastic. I was dropping 2%/hr. I seriously was wowed by how awesome its been today. Although, every once and a while, my phone does that.

Very pleased. The big drop was grooveshark steaming on 4G.
Sent from my Galaxy Nexus

jst07 said:
Simple, but have you tried just disabling 4G while at work? I get 4G at work, but barely. This made the difference for me.
Click to expand...
Click to collapse
+1 for turning off 4G when you are out of range. Also I enabled the mobile data limit and forced several applications to restrict background data. For example, google+ was a major hog that was constantly using the radio. Also check applications that "check in" periodicaly, and increase their check in time. Words with Friends checks in every 5mins by default.

Valynor said:
A lot.
I usually lose 3-4% over night (9h) with perfect reception. Last x-mas I was at my gf's home on the countryside with barely 1 bar of reception and ~50% no reception: Lost 30% over night. Both times connected to WiFi.
Click to expand...
Click to collapse
I assume you are on GSM version
my LTE nexus over night would lose about 20% nothing turned on, even easy battery saver turned on for intelligent battery saving and this same thing...

Just how TERRIBLE is the battery life ?

I wanted to get this phone as a replacement to my Nokia N8.
Having been loyal to Nokia over the years, I'm used to absolutely excellent battery life, where I get a good 2 days of normal use, or easily get through 1 day of heavy use.
Would the Galaxy Nexus be a really bad step down ?
Can anyone suggest their average battery life when having:
25% screen brightness,
GPS/BT/NFC/etc off until needed.
Sync only for WhatsApp
Messaging 1-2 hours a day
Music 2-3 hours a day
Browsing 1 hour a day

I get 8-9 hours standard usage
Sent from my Galaxy Nexus using xda app-developers app

stewie325 said:
I wanted to get this phone as a replacement to my Nokia N8.
Having been loyal to Nokia over the years, I'm used to absolutely excellent battery life, where I get a good 2 days of normal use, or easily get through 1 day of heavy use.
Would the Galaxy Nexus be a really bad step down ?
Can anyone suggest their average battery life when having:
25% screen brightness,
GPS/BT/NFC/etc off until needed.
Sync only for WhatsApp
Messaging 1-2 hours a day
Music 2-3 hours a day
Browsing 1 hour a day
Click to expand...
Click to collapse
If only 3G, you'll probably pull about 12 hours and a little under 3 hours screen on.
-Brought to you by Marino's Galaxy Nexus-

Mine's on WiFi all the time with all the syncs and stuff. A few calls and messages + mild browsing. Normally I get 14-16h. Maximum was 24h with the wifi turned off I guess. Not the best results, but bearable.

I get about 4 hours screen on time, and a full day no problem.
Just charge when you go to bed at night and youll be good to go

I usually get one and a half days of standby time (average 37 hours as reported by GSAM Battery Monitor). So I usually only charge every other day. However, my screen use (1-2 hours) is much less than most people on this forum. If I use my phone heavily with screen on >2 hours, then it lasts just one day.
1-2 hours screen on time.
Brightness: 11% indoors, auto outdoors
GPS/BT always on
40 mins/day streaming Pandora music over HSPA+ and BT with screen off
Wifi + Airplane mode always on at home, with Wifi High Performance Widget
VoIP (Sipdroid) connected whenever on wifi

It's comparable to the selection from any OEM, though 4G and Jelly Bean's Project Butter are the top offenders (alongside display, that's more a given, though.)
Sent from my ADR6400L using xda app-developers app

Install rasbean and franco/trinity. Your head will be blown with the awesome battery life. I wont say more, test it yourself.
Sent from my trasbeaned Galaxy Nexus.

thegtfusion said:
Install rasbean and franco/trinity. Your head will be blown with the awesome battery life. I wont say more, test it yourself.
Sent from my trasbeaned Galaxy Nexus.
Click to expand...
Click to collapse
These statements are invalid, people have reported great battery life with almost every combination out there. Secondly, OP you won't last more than.. Well could be 14 hours maybe 18, 14 especially assuming you use data to web browse. but it really depends on screen on time and, how spread out your usage is.
Sent from my Galaxy Nexus using xda premium

It will be a step down.
You will never get 2 days of battery life under any useful circumstances.
Unless you neuter your phone, as I've mentioned in another thread.

In all honesty, the gsm/cdma versions need to be compared totally different. I've had both and can say the gsm version can easily get 3 hrs of screen on time without even trying and the cdma version (toro) struggles to get 2hrs. So, when somebody replies about battery life, they really need to specify which version of the gnex they have or you could specifically ask for maguro/toro/toroplus users.
BTW, the screen on times I'm specifying are not on wifi and are using HSPA+ for the Maguro and LTE for the Toro.
On Maguro (GSM Version), I routinely get 2 days out of my gnex with light/normal use.

I have the GSM Galaxy Nexus and I keep my phone on Airplane Mode at home, work, & school (since all my calls & texts are made through google voice anyways) & data while I'm on the go. I mainly use Facebook, Google Voice, Groove IP, Instagram, Light Flow, Google Search (4.1), Google Maps, & music. Occasionally I game, watch movies, etc. Here's a typical day of use, 5 hours of screen time:
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We don't have 3G where I live - but I have to charge my phone every night.
My usage is something like this: random surfing at work (read news and all), send quite a few texts (or Whatsapp messages), play music for almost 50 minutes straight... when I'm home, I'm left with 60 or 50%.
I do have a charger at the office though - but I don't always use it.
It depends on how strong your cell signal is; if you're in a spotty area, the battery drain will be higher. It also depends on the kernel you use (right now, I'm trying to find a decent kernel - not the stock one since I get random reboots on the stock kernel... my phone didn't have this problem before, oddly - even with Jelly bean on it... yeah, confusing... but I digress).
Anyway - it will last you a day easily. 3G? I think it'll last you a day there as well. It depends HOW you use your phone.

Thanks for all the replies. As a reply to one poster, yes I am getting the GSM version as there is no LTE really in the UK. But it seems my battery concerns are true looking at most of your answers. I'll have to be really really careful in order to get two days use out of it. Probably best to spend a bit more on another phone. Perhaps the GS2, but that doesn't seem to be much better..

If the battery lasts you one day, you shouldn't be so concerned about it. Not like you can't charge it during night... Also with a little optimization, it can easily last you a day. If you are still concerned about your battery, get an extra battery or an extended battery. Also I had SG2 before and the battery is better than Gnex, but not enough to get it over Gnex.