yashsingh1/xdaforums huggingface dataset:
[Nexus 4 General] stuart0001:
Yes I agree there are definitely software issues eating the battery. However, my replacement N4 lasts about 20% more than my HOX whereas the previous N4 was about 20% less. Therefore, you may have a faulty device. Does yours get warm when in standby/'idle' and have you any random shut downs/reboots? If so then I'd say it's likely
[Nexus 4 General] laverdure#1:
Would you mind sharing which kernel you flashed? I could try them all, but your input would be useful...

Thanks!
[Nexus 4 General] kaalatittar:
i m sorry but i dont think i got what did u meant to ask ?
[Nexus 4 General] razball:
Matrix v2.0
[Nexus 4 General] redthunda69:
Android os keeps my phone awake like crazy on 4.2.1. I have 15 minutes of screen on time and 80% battery... fix this, Google!
[Nexus 4 General] razball:
And I'm on aokp as well so customization is nice and the media server is due to YouTube for about 15 minutes

Here's battery life today so far

---------- Post added at 12:16 PM ---------- Previous post was at 12:02 PM ----------

Damn that sucks as you can see below 76% 1hour on screen time and I was mainly doing temple run browsing and youtube
[Nexus 4 General] redthunda69:
You're trending on 4 hours of screen on time, that's really good.
[Nexus 4 General] manlisten:
My standby battery life is pretty great but something is really taxing the battery while I actually use it. This screen is very power hungry it seems. Also Mediaserver seems to take way more battery then I recall on my other phones.
[Nexus 4 General] razball:
Yes I know, that's why I love nexus lol if phone comes broke there is someone that can fix it lol I was getting shot battery life before rooting and everything maybe 2hrs on screen all day so yes that was bad. But still better than my gnex lol I got 1 and half hours screen on down to like 5% lol
[Nexus 4 General] AssassinFuze:
What are you guys doing!?

I see all of you guys posting such wonderful stats on your phones performance and I feel some uneasiness creeping on. I got my phone in last Thursday, charge it fully and then starting tinkering with it. I'm having a few problems with my phone, but since this is a battery thread I'll keep it to the battery here...

My battery stats from 4 days after I got the phone...

7% charge remaining

11h 9m 4s on battery

I had everything on (syncing, Google Now, GPS, Wi-Fi, etc)... but many of you have all that on and are getting like 15 hours with 20% left.. Is there something wrong with my phone?
[Nexus 4 General] razball:
Give it time the battery gets better as you go and if you flash a new kernel it'll be even better

---------- Post added at 12:37 PM ---------- Previous post was at 12:34 PM ----------

Shut off GPS if you don't use it much and turn on when you do
[Nexus 4 General] alen1901:
I think i know why the battery is so bad on n4. Its because screen refresh rate is fixed at 60fps, so it doesnt drop at all, so you get nice and smooth experience.

Sent from SpeedMachine i9023
[Nexus 4 General] twomix9900:
Tested it myself after hearing about it earlier in this thread. My horrid battery life improved drastically the moment I uninstalled HD widgets. The dev even confirmed a fix being on the way in the app review section.
[Nexus 4 General] Jayrod1980:
Besides the things already stated there is another software bug on this phone. Check in battery app... Look at awake time. I've never seen a phone with so little wake time yet has so much use by services and apps other than on screen time. The chart makes it look like the phone is never awake which is entirely untrue, especially when streaming stuff, gaming, etc. The phone chart isn't even properly registering awake time. Also, in the detailed stats itself I usually end up with about an hour of android os keeping the phone awake even just taking it off the charger full and picking it cup again after the end of the work day. If os is taking up an hour it would show blue on the chart equal to an eighth of the chart display after 8 hours but it does not. Something is messed up with this thing. We should be getting similar battery life to the optimus g and would be getting higher with aosp android 4.1.
[Nexus 4 General] heat361:
The nexus 7's screen is fixed a 60fps and I get great battery life
[Nexus 4 General] nektario:
This is with phone mainly idle except some kindle reading, email, facebook, and some browsing. everything turned on and syncing normally: google now, gmail (2 accounts), facebook, gps, full location services etc.

15 hours or so on wifi, the rest on 3g.

The screen time was 56mins.
[Nexus 4 General] chrisjcks:
Google have yet to release the big update which is usually a .1 release that fixes a ton of things including improved battery. (but due to December missing, it won't be .1 lol)

....I await update
[Nexus 4 General] B97:
A 4.3?

Sent from my Nexus 4
[Nexus 4 General] heat361:
Most likely a 4.2.2
[Nexus 4 General] ATnTdude:
Lithium batteries don't get better with time.

Silly advice. The GPS is always off unless you're using it, and when you're done it shuts off again. If some app is using GPS when you don't want it to, then uninstall that app. That's not behavior you want to encourage.
[Nexus 4 General] alen1901:
Than google ****ed it up. Thats the only thing i hate about n4. Battery life. S3 is much better. Ill wait and see what will google do.

Sent from SpeedMachine i9023
[Nexus 4 General] B97:
How do people know this update is coming?

Sent from my Nexus 4
[Nexus 4 General] dilidolo:
I got great battery life on my N4.

5.5 on screen, mostly browsing through wifi and LTE (On Rogers)

total battery life is about 30 hours from full charge.:laugh:
[Nexus 4 General] ml2514:
I second this
[Nexus 4 General] ksc6000:
Are any of you guys actually reporting this to google???

All you have to do is make a comment here: http://code.google.com/p/android/is...=ID Type Status Owner Summary Stars&start=200

That's it. Otherwise how are they even gonna know this is a problem?
[Nexus 4 General] chrisjcks:
Because every nexus has received a point release shortly after release that fixes a lot - I don't think this nexus will differ.
[Nexus 4 General] Younggun123:
I got 33 hours w/ 2 hours screen time. Light use, everything on except NFC, push email. On WiFi 90% of the time. Screen at half brightness.
[Nexus 4 General] Kushblow:
Does anybody know why I'm getting shiiiiiittttt battery? I'm on my second charge since I got the phone and I got like 10h but thats only with 3hr screen time. This was with brightness @ 20, wifi off, no gps, btw.

3hr screen time and only these activities:

- GBA emulator - pokemon for 30-45mins

- Chrome for like 2 hours...

- 1 camera pic...

Is my phone defected?
[Nexus 4 General] Leong428:
Maybe it's cuz I'm coming from a HTC DHD but IMO battery life is good (not great) on this device.

It easily powers through a day with heavy-moderate usage. I get home after 12 hours on campus with around 20% left. I even leave WiFi on the whole time with 5 email accounts updating every 15mins
[Nexus 4 General] EnIXmA:
I am getting 36 hours of standby and approx 3.5 hours of screen on time with aokp ROM and matrix kernel, extremely satisfied with the battery
[Nexus 4 General] razball:
That's decent and give it a week the battery life gets better every day after a week I was at 15 hrs off charger and 3 and half on screen
[Nexus 4 General] Moemoks:
Battery was at 35% before charging, no WiFi only hspa, used YouTube and listened to music through Bluetooth most of the day, also had horrible connection and GPS and sync on
[Nexus 4 General] JazzNeurotic:
http://imgur.com/a/25tlO

There's my battery life today, w/ moderate usage.

Seriously guys, is my battery just ****ed or am i doing something wrong?

Google Now is off. NFC is off. On Wifi as much as possible.
[Nexus 4 General] Moemoks:
don't know if it counts but I turned off currents sync and disabled currents. I heard it slowed down the n7 thought it might help me.
[Nexus 4 General] cobyman7035:
Acoording to gsam pro my stats. 25%usage after 5.22hrs.

Avg? Wifi on. Screen 25%
[Nexus 4 General] Jayrod1980:
There has to be os and or driver issues at play. The 4.1 equipped and skinned optimus does a good deal better on benchmarks with almost the same hardware and design and gets better battery life. Also... The massive droid DNA with a 5 inch 1080p slcd3 with almost the exact same guts as this phone running 4.1 gets similar battery life with 100mah less battery. This thing is supposed to have a special higher charge li-polymer battery. There needs to be fixes here.
[Nexus 4 General] @rbiter:
The optimus is running ICS. There is nothing special about the battery. 2100mah is 2100mah even if it was NiFe battery or nuclear powered.

I voided my warranty.
[Nexus 4 General] jspookss:
Disabled currents, g+ and turned screen brightness down.

Seriously this screen is plenty bright even at min setting.

TURN THE DAMN SCREEN DOWN
[Nexus 4 General] JazzNeurotic:
My screen brightness is, literally 2mm above the lowest brightness setting and i'm still only getting 14 hours of moderate use.
[Nexus 4 General] ADJack:
Just did a little benchmark test for my own reference. I left the phone charging for an additional 30 minutes after the full battery icon appeared.

stock/rooted/box JB 4.2 (not 4.2.1)

Turned on and tinkered with battery stats and setcpu for about 10 minutes or so

1.13Ghz Max

384Mhz Min

Ondemand/cfq

brightness set to lowest possible

volume just under 50%

Wifi only

no sync at all

no 3g

played videos in software decoding until shut off

example source material: 700x396, 24fps

no calls/texts made/received during duration

made numerous screenshots of stats

total up-time: 4 hours 55 minutes (roughly) - I kept track of the last few minutes manually when it it 1% mark

screen on time: 4 hours 47 minutes (roughly)

pics soon; busy charging.
[Nexus 4 General] Ice Phrozen:
Moderate use and still doing fine. I've noticed that battery life has improved over time the longer I've had the phone. I haven't disabled anything auto-syncing. Brightness is automatic. Haven't used wifi all day.
[Nexus 4 General] germanj:
Guys, please post your screen time also. Otherwise the other battery graph doesn't make sense.
[Nexus 4 General] omergohan:
Battery is great. I keep either WiFi or data on. Never both together. GPS is off until I need it. 19hrs with 3.5hrs screen on time.
[Nexus 4 General] Kushblow:
hey guys had a few questions a number 1 how do you disable GPS number 2 how do you disable backups and number 3 um how much does auto syncing drain the battery?
[Nexus 4 General] lukesleepwalker:
I get 15 to 16 hours off charger and 3.5 hours screen time. Other than setting my brightness to auto I haven't made other adjustments.

I am brand new to android. Is that considered good? Seems to work fine with my lifestyle as charging while sleeping doesn't keep me up at night...
[Nexus 4 General] ra_grand:
My battery life improved after 1-2 weeks of usage.
[Nexus 4 General] pandamaja:
I was getting pretty decent battery life at first (for my usage). Now, not so much. Even have the BBS export. I turned wifi, we'll see if that helps it sleep.
[Nexus 4 General] Freshly_Snipes:
Doing super well with mine. Whoever isn't getting more that 12hrs with heavy use should return the device RMA. I'm a super heavy power user and i get 14 to 20 easily with normal usage. This my battery status from this morning.

I only turn off Bluetooth, GPS and Location Tracking (don't use it nor want it) and i disabled dumb arse Google books and magazines. That's it. I literally live on my phone so I know u have zero issues.

This was just a lucky shot in the dark. It was rather odd. But my NORMAL screen on time is about 3 to 6hrs. My Normal battery life is about 9 to 14 hours. So idk wtf is wrong this time. It's odd.

*THIS IS NOT NORMAL FOR ME*

Just sharing. Didn't recharge it while powered on or anything. Doing this on the #N4 will reset battery stats anyway.
[Nexus 4 General] pandamaja:
Mind posting the general battery use graph as well?
[Nexus 4 General] namartlu:
I started underclocking to 1Ghz and it's still snappy and it seems to help battery life noticeably, I am still testing...
[Nexus 4 General] jhock:
So I think I found my battery issue. I was getting about 8 hrs off charge and 2 of screen time with moderate use and GPS/WiFi/NFC off.

Ran GSam battery monitor and discovered that the phone was always 'active' - just a solid yellow line in the graph.

Turned off 'location services' in my account and my battery life has GREATLY improved (about double compared to yesterday). GSam now shows 'activity' when the screen is on.

The issue is that I really want to use location services, it is half the point of owning a smart phone. Is this an OS bug?
[Nexus 4 General] Freshly_Snipes:
This was this morning. Someone in the other battery thread said that one didn't matter. So i didn't shot it. I'm definitely not trolling with this one.

After this died I powered off and charged. This is how I charge it. Once a day. So of course all my stats reset. I can do it again tonight for you if you'd like?

This was just a lucky shot in the dark. It was rather odd. But my NORMAL screen on time is about 3 to 6hrs. My Normal battery life is about 9 to 14 hours. So idk wtf is wrong this time. It's odd.
[Nexus 4 General] chrisjcks:
OK, today I got more battery than my one x.

Very pleased

I only get 11hrs during a work day, but I use my phone very differently during work as I stream music all day via data.

However at weekend I stream none, and use the phone more of a normal way, using apps, games etc.

Whilst at work, My one x needed charging from 4:30pm, yet my N4 lasted until 5:10pm which was 'just enough' - I finished work without charging on 6% :)

So, very happy I've found a phone that lasts.

Note to all, disable GPS which is on by default - even though I use no navigation or maps, by finding location by WiFi only - I've noticed a massive improvement in battery.
[Nexus 4 General] kgeissler:
I agree with you. I really like the location services, so I keep them on regardless of what it does to my battery. I am always near a charger, so if my battery goes low, I charge it up.
[Nexus 4 General] Spiralzz:
So what do you guys say, galaxy nexus > nexus 4 in terms of battery life?
[Nexus 4 General] CMNein:
With the same type of usage I'm getting more than I did with my GN; haven't figured out just how much more however.

YMMV.
[Nexus 4 General] nyijedi:
It's well known that disabling all location services will dramatically increase battery life, but not many (including myself) want to make that sacrifice. A good compromise is to disable certain parts of location services and freeze maps when not using them. This has worked pretty well for me. See my OP in this thread re: the different settings:

http://xdaforums.com/showthread.php?t=2009614

For me personally, yes, my GSM Galaxy Nexus was much better than my N4 in terms of battery.
[Nexus 4 General] pandamaja:
People like to see screen time because that represents actual usage, whereas some may say "oh I got 24hrs battery life" but screen is 3rd or 4th...so their device was sleeping the whole time.

I asked because 8hrs screen time is an absurdly long time. I was curious if you had charged the phone briefly throughout the day. Good to see you hadn't. Thanks for the update :)
[Nexus 4 General] scott_doyland:
Its not really location services as such that eat battery but the apps etc that use them. For example if you have the phone constantly tracking your every move (background location reporting - who actually wants to be constantly tracked!) or use Google Now, then battery will be used quickly.

But having location access on and then only actually making use of it when you run an app manually it uses less battery, eg run an app like flixster which gets your location only when it runs to find your nearest cinema.

I would guess many people just have ALL location tracking/access on and this won't be good for battery life.

I'm not sure what the defaults are to be honest but its worth switching off everything that is not useful to oneself.
[Nexus 4 General] jhock:
I agree, I usually have no problems charging, however, it is worth remembering that a battery can only take so many charge cycles. LG claims that their battery technology gives them 800 cycles before the battery begins to degrade. If we are charging twice daily (a cycle being any charge regardless of whether it is 100% or not), that only gives us about a year before we have to peel the battery out and replace it.

That more than having access to a charger is the reason I see it as a problem.
[Nexus 4 General] golfinggino:
I wasn't sure how running lte with no WiFi at all would affect the battery but I should be able to get 4 hours screen on time under medium to heavy use with lte going all the time - here is what I managed today I would say this would be a bit lighter the normal use today
[Nexus 4 General] @rbiter:
No. Galaxy nexus ~= nexus 4 in terms of battery life. This comparing 2000mah battery to 2100 mah battery and nexus 4 has quad core and more powerful GPU and and 61440 more pixels to render. I was expecting better but honestly it is about right considering the n4 has more to power although factoring in the n4 is a 17nm smaller die it is hard to quantify. And overall the n4 has a bit better WiFi distance and LG radio is better than Samsung's in terms of reception. I was hoping to get better than 4 hours screen at work but that is all I can muster. I can get ~6 hours screen straight WiFi.

I voided my warranty.
[Nexus 4 General] nexuscentral:
not sure if good or bad but here it is...
[Nexus 4 General] vipeezy:
Does anyone turn their phone off daily towards the evening, then charge it up? I think I am getting better battery life after doing this. Almost like a computer. When you turn it off, it should run better after you boot it up.
[Nexus 4 General] manlisten:
Eh, good enough I guess. This was with about two hours of music.
[Nexus 4 General] p5f:
I've owned AMOLED and LCD phones over the years. They both have their good points. AMOLED look stunning with their punchy colours but some dark areas of videos don't come out well. LCD have less wow factor but appear more realistic, I agree that the colours on the N7 look too cool and flat.

I did notice the top half of my N4 got hot when streaming from google music over 3g and browsing the web, didn't notice anything out of the ordinary when watching videos. But my S3 used to get hot in my pocket for no apparent reason (maybe when it was syncing news stories?)
[Nexus 4 General] Martin_Ro:
I've tested some video streaming over browser. The top half of phone get's warm, ok, but hot ? Not really (for me). Hot I would define @>40-50°C, but what I feel is more in the high 30th...

To the root / OTA question.

I don't know for sure, but as far as I understand it, OTA works on unlocked/rooted phones without problems.

OTA only stops working if you flash a new CWM (you don't need this for rooting, so it should be ok)
[Nexus 4 General] rsg_1:
If people can comment on how the battery life is for just talking and texting would be really helpful? Can you get through a 12-hour day on a full charge? I'm getting this phone for my wife who spends most of her time talking and texting.
[Nexus 4 General] :
100% - Sent 4 texts and liked a status on FB, lost 5% so something is not right with the software in 4.2 - 2100 battery with the chip this phone has should be very efficient.
[Nexus 4 General] manlisten:
I think that CPU spike is a tweak that was introduced with Project Butter, where the CPU ramps up briefly when touch input is detected.

I am no developer but it seems like there's definitely a software/kernel issue. "Android OS" and "Android System" should not be so high on the battery usage list. I have always found that when those two processes are high my battery performance takes a hit.
[Nexus 4 General] yahyoh:
project butter based on gpu it has nothing to do with cpu :rolleyes:

but i think they talked about something in android 4.1 introduction which is touch boost : it will boost the cpu to max clock when u touch the screen (kernel related )
[Nexus 4 General] :
Its got to be the Kernel, wait for the next update and then see what happens.
[Nexus 4 General] yahyoh:
its fixed in Gnote 2 screen

edit : http://youtu.be/aVqs70N3KeM?t=6m51s
[Nexus 4 General] astalavista_thes:
I am not a heavy phone user so treat my results with a pinch of salt. In addition my sim was in the phone but wasn't activated for the first 10h of the statistics or so. I don't know if this results to faster battery draining or the opposite. My only claim that stands is that against my previous phone (Galaxy Nexus), Nexus 4 has better battery by far.
[Nexus 4 General] omersak:
WTFBBQ!

What was the total unplugged time for this charge?
[Nexus 4 General] phositadc:
Wtf why does it show that the screen is on more than the phone is awake? Shouldn't the phone be awake at least every time the screen is on? So many 4.2 screen shots show awake time less than screen on time in the blue meters, but that's impossible. There's some sort of reporting bug in 4.2 I think.
[Nexus 4 General] astalavista_thes:
That's a very good question!
[Nexus 4 General] aceo07:
If you're testing battery life, the last bit is very important. Run it until it shuts down.

This test is more valid than those who only let it go to 15% or 5% before reporting it. There could have been an extra 1hr or 30 minutes left of display on time before it shuts down..
[Nexus 4 General] mgorman:
Battery seems pretty good to me
[Nexus 4 General] marshalex:
seem to have had much better performance today so far after a full rundown and charge last night: turned off google now which seems to have drastically reduced battery consumption
[Nexus 4 General] shadehh:
Wow! That looks impressive. What have you been using your phone for? May I ask how long you've had 3g and WiFi on for?
[Nexus 4 General] :
Anyone know what msm_hsic_host relates too???

Thats whats draining my battery it seems.
[Nexus 4 General] Stadsport:
It was only off the charger for about 9 hours. I used it heavily all night at work on effort to cycle the battery. I should also point out I have full Google account syncing turned on (Gmail etc). My experience with my Gnex it's that it would sleep forever, but the screen just wrecked the battery, so really that's the important metric to me right now.
[Nexus 4 General] sotorious:
yesterday i got 15 hours on with barley 2 hours of screen time and it was @ 1%

i may be a bit spoiled from my iP4

---------- Post added at 12:24 PM ---------- Previous post was at 12:22 PM ----------

wow that seems impressive so far, you are saying if turning off google now will improve battery life.
[Nexus 4 General] adulel08:
for the guys with long battery life, is it because u have the brightness on the lowest setting? 5hrs on is amazing but that cant be normal auto-brightness.
[Nexus 4 General] Falzar:
Here is My battery solution

http://www.mychargepower.com/android-extended-batteries/peak-6000.html

I am on the go a lot and not near an outlet most of the time.... There are cheaper versions also

^_^
[Nexus 4 General] [hfm]:
For those of you who use HD Widgets by cloud.tv there is an update to try to lower battery usage. Also a potential 4.2 reboot issue fix. Now I know which app to blame for 4.2 rebooting on both my GNex and n4.

Edit: From what I'm seeing so far, my battery life is much better with the new version of HD Widgets. If you like that app update immediately.
[Nexus 4 General] jaZzyjeff818:
I just came across the settings for Cell Broadcasts in the messaging app menu. Could those settings being on affect battery?
[Nexus 4 General] [hfm]:
No. Is probably part of the messenger app, is just rules for those type of incoming messages.
[Nexus 4 General] [hfm]:
After updating HD Widgets I have reached 3 hours of screen time and have 42% battery left. Auto brightness, Wi-Fi, 1 gmail pushing, 1 touchdown exchange pushing, Google now on, all location services on.

Awesome if you ask me.
[Nexus 4 General] manlisten:
How long were you on battery?
[Nexus 4 General] tvdang7:
Cant be my GNEX gets about 1-2 hours screen time in an 8-9 hour work day while this N4 gets 3+. Still testing of course but the battery is def a little better.