yashsingh1/xdaforums huggingface dataset:
[Nexus 4 General] fail50:
OK= =

THX:crying:
[Nexus 4 General] phositadc:
Screenshots below were 100% on HSPA. I still think this is pretty bad. IPhone 5 gets more like 6-8 hours screen on in this scenario. My galaxy nexus with a smaller battery even gets 4. Galaxy S3 got about 5.

Will this get me through the day? Absolutely. But it's still pretty sad that it's worse than so many other phones though.
[Nexus 4 General] Ace42:
It's possible on this phone but if you're using strictly HSPA+ or 3G then it could be a challenge. If you live in a poor signal district then your battery will go like rapid fire. Though, if you consider a custom kernel and you choose to undervolt and underclock it will be possible. And don't forget you can't leave things syncing in the background if you want 5 hours.
[Nexus 4 General] cdon2109:
I'm so jealous of your battery life. Mine won't even get past 5 hours. Mediaserver is draining my battery. I've read it's about corrupt media file such as music, picture or videos?
[Nexus 4 General] cobyman7035:
is there a kernel that will help me get better 3g/h/4g reception or i'm SOL on this depending on my location? i NEVER get full bars inside my house
[Nexus 4 General] Ace42:
You're probably accessing media apps. Also turn off the click sounds when the screen is touched.

Kernels can't improve your signal strength. What you need is to wait for modem updates. And when your signal is low I recommend using wifi or switching to a carrier that has coverage in places you frequent.
[Nexus 4 General] cobyman7035:
i agree with u, too many variables to considered, so its not really accurate and or relative

i meant my battery will just drop even if i don't do anything and my brightness is less then 20%
[Nexus 4 General] cobyman7035:
did a 1 hour test on my battery, constant 3g/H/4g 4g was probably on for 10mins , 1bar as i don't get good signal reception in my house on data,

surfing for one straight hour , my screen brightness is only at 20% , and im underclocked to 1000-1200mhz i think using setCPU

running stock 4.2.1 rom/kernel

lost around 22% battery, battery temp got up to 38.5celcius , the back of the phone where it says the nexus logo, is the warmest part, stays warmish/hot all the time when i used the phone

i don't think i have a great battery, just average i think right now on stock

is that normal? im hoping when i flash to franco r22 kernel i dont' get this 'heat' issue and better battery life
[Nexus 4 General] Ace42:
The nexus area is definitely the warmest on my device. The N4 blows thru the 90%'s rather quickly, as well as the high 80's. Your temperature is quite high so I suggest lowering your voltages.
[Nexus 4 General] lunzi88:
Not quite sure if I'm lucky, but my set seems to be blessed with pretty decent battery life.

Just installed franco's kernel this afternoon, but even on stock I recall getting over 4-5hours of onscreen time with 20-30% battery life to spare. :laugh:

And bear in mind this is only my second day with the phone, so there has been a ton of stuff downloading and whatnot
[Nexus 4 General] stuart0001:
Your images don't tally with your comments. You've only got under 4hr screen time including a top up charge too. :confused:
[Nexus 4 General] zaki67:
I do not think that most of the posts here reflect the real story, in real life usage the battery so far isn't great and most post show it to be more than great.
[Nexus 4 General] Ace42:
Your battery life is actually bad haha. When people here are talking 4-5+(of screen on) hours it's usually between 15-24 hours.
[Nexus 4 General] Pully:
Franco Kernel r23

Very smooth experience so far, only Google Now disabled, Gmail and WhatsApp on push sync. Screen on time consists of browsing, Tapatalk and a bit of YouTube. Brightness around 20% (more than bright enough for me). On 3G/H for nearly 50% of time and quite a few messages sent over News Years Eve.
[Nexus 4 General] Majkysek:
These are very nice values, Pully. But tell me, did you use f.e. YT via 3G/H or WiFi? Do you use Facebook app?

I wondering if this is just your one time experience or you see this good battery life every cyrcle?
[Nexus 4 General] DowntownJeffBrown:
At&t data no WiFi

Skanky CM10.1 with Motley #37

25% screen brightness

Sent from my Nexus 4 using Xparent Blue Tapatalk 2
[Nexus 4 General] DowntownJeffBrown:
Nice but u charged half way through.

Sent from my Nexus 4 using Xparent Blue Tapatalk 2
[Nexus 4 General] Ibsonic:
Verstuurd van mijn Nexus 4 met Tapatalk
[Nexus 4 General] Pully:
YouTube was on 3G/H on NYE to find a couple of music videos for people and one 8 min video today on wifi, I don't have Facebook application installed.

Always had decent battery life on wifi from day 1 (4-5 hours screen on time) but with the last few Franco kernels I get good battery life on mobile data as well.

Running stock rom, rooted, bootloader unlocked and no custom recovery installed.
[Nexus 4 General] zombielunch:
my battery life is alright, but what's weird is when I look at the usage breakdown, Phone has used 60% + while nothing else has used more than 15%

does that seem normal? i've been texting some but not entirely too much. seems weird to have Phone be the app that uses the most battery and by such a large margin
[Nexus 4 General] DowntownJeffBrown:
I don't think so here is mine for today. I crashed and burned at 4:17 that's when I started charging. About how far are you getting for screen time.

Sent from my Nexus 4 using Xparent Blue Tapatalk 2
[Nexus 4 General] zombielunch:
that's weird. i wonder what could be causing it.
[Nexus 4 General] DowntownJeffBrown:
Do u check for wakelocks?

Sent from my Nexus 4 using Xparent Blue Tapatalk 2
[Nexus 4 General] errorcod3:
Google Voice/SIP Droid Setup

Here's mine. I'm using faux kernel and CM10.1. My phone setup is a little strange. I use google voice so when I'm at home my phone is in airplane mode with wifi on. Then I use SIP Droid and the google voice app to receive phone calls and text messages. Once I disconnect from wifi the phone automatically goes back our of airplane mode and uses the regular 4G...

One charge lasted 1d 12h 48m

Screen time: 5h 4m

I previously drained the battery all the way to zero a few times then recharged to 100%. once the phone was recharged to 100% I unplugged and turned off. Then charged it again (with the phone off, until it was fully charged again -- about 5 cycles).

So far this is the best battery life I've gotten... Maybe I can get more.
[Nexus 4 General] zombielunch:
wakelocks?
[Nexus 4 General] DowntownJeffBrown:
Download better battery stats from the play store and read this

http://www.alliance-rom.com/community/wiki/better-battery-stats-guide/

Sent from my Nexus 4 using Xparent Blue Tapatalk 2
[Nexus 4 General] shamu11:
I'm at 52% charge with 1h 4m of screen time about half that time was on hspa (wifi was still left on). Played some games and browsed the web. In total i've only been on battery 3h 43m. It is worth noting android system takes up 20% of battery and maps takes up 8%.

Is this normal battery life after having phone for a week?
[Nexus 4 General] zombielunch:
thanks for the help, a quick scan looks like RILJ is the biggest partial wakelock ~85%

any further insight?
[Nexus 4 General] yogeshmha:
my charging gets to 99 percent only.. is it normal?
[Nexus 4 General] fetto666:
I have had the device since 20 December, using it very often - but battery have been a disappointment.

One of the main reasons i bought it was because of higher battery capacity and a newer processor (newest there is?).

So i did a little test yesterday with both devices charged to 100% over night.

Then i played an MKV 720P video using MX player, H/W+ setting until the battery ran out.

HTC One X: 6 hours 15 Minutes.

Google Nexus 4: 4 hours 01 Minutes.

(Franco r23 kernel)

This is really disappointing, because the Nexus 4 have a larger battery and a newer processor.

During this test, it seem to be mostly because of the screen and not processor or GPU.

I'll do another test today with only the screen on.
[Nexus 4 General] Scoutamis:
My first Nexus 4 got less than 2 1/2 hours of on screen time with NFC, Maps, Google Now, and on WiFi all day. I just received my RMA and so far with all of the above, I'm getting more than 5 hours on screen time. By the way both the phones were stock, not rooted. I'm very happy with the battery life of this phone! Its much better than mg Galaxy S III
[Nexus 4 General] 309041291a:
Different software. I think Google made it so that the clock rate will always be really high to keep framerate or something, giving us speed for battery, sadly.

Nexus S power. Old hardware sucks? Ha! Hardware is like wine, the older the better! Jokes :P

Probably normal. A lot of phones have a gap, "100" is cosmetic, not really ' true'.

Nexus S (GSM i9020a)

AOKP (Milestone 1 - 4.1.2)

Matrix Kernel (24.0 - CFS)

Ondemmand (Screen On) (1320/200)

Wheatley (Screen Off) (400/200)

Deep Idle (N/A - Deadline)

BLX (N/A - Inverted Apps)

Black Exodus (Stock Voltage)
[Nexus 4 General] fetto666:
Maybe difference in screens?

Most battery: IPS

Lesser battery: LCD2

Least battery: AMOLED

Makes sense?
[Nexus 4 General] stuart0001:
I'm finding my 2nd N4 is better life than my HOX but my 1st was worse so you may have a faulty unit. What brightness was your screen and I'll carry out the same test. Also what sync and data connection did you have
[Nexus 4 General] draugaz:
Apples to oranges.

We simply don't know how the video decoding is really implemented, wether GPU hardware decoder is fully used or not, what parts of the work are inefficiently "emulated" in the cpu, how efficient the drivers are and so on.

A newer processor in such case is actually a clear disadvantage because a lot of things are not properly tuned yet.

As to the battery usage breakdown estimate, keep in mind, that it is not necessary very accurate. It is just a rough estimate and nothing more.
[Nexus 4 General] @rbiter:
N4 doesn't support a lot of codecs.

Sent from my GT-N7100
[Nexus 4 General] benrees21:
My most impressive.

Because I'm a Nexus b!tch and I like to run the latest source and binaries!! AOSPA and Trinity!!!
[Nexus 4 General] hicks12:
What rom and trinity version are you running? also can we see the graph info i.e signal and when wifi was on etc. Looks like epic battery life, want to try that combo!.
[Nexus 4 General] Ibsonic:
He's on Franco r24 with Paranoid android.

Verstuurd van mijn Nexus 4 met Tapatalk
[Nexus 4 General] yslreyes:
Is there instructions anywhere on how to install Franco kernel on nex4

Sent from my Nexus 4
[Nexus 4 General] gagdude:
Yes. On the Franco kernel thread. He has a flashable zip
[Nexus 4 General] fetto666:
Three things:

Both the One X and Nexus 4 support h264 in mp4 format, that's why i used just that movie to loop.

Usually MX player will tell you when the file cannot be used by hardware decoder.

So, we are supposed to get used to half-ready, half-buggy processor support getting released?

In that case, i'm going to take a hard look on ubuntu mobile when it get's out. Maybe it will be more supported.
[Nexus 4 General] Kendo12:
can anyone explain this? This phone has never had a sim card in it, had it on for about 4 days and yesterday I see this...
[Nexus 4 General] draugaz:
See what?
[Nexus 4 General] jonmorris:
That's odd. No SIM so it reports a mobile signal whenever WiFi was on...
[Nexus 4 General] draugaz:
It tells just what the phone reports. But it cannot tell how complete or how good the hardware drivers are, which features are used in hardware and which ones are emulated, whether the unneeded hardware components are powered down or not, if the chip is clocked at the apropriate rate and so on.

As it always was with every new device without exception. Any new device (in the broadest sense) is released to the market semi unfinished and then ripens in customers hands like a banana.

In this case this is APQ8064 + Adreno320 which is a completely new SoC. First driver versions are usually fairly conservative, the primary focus is on stability and not so much on performance or power tuning. This happens later down the road.

For example, that same HTC One X (european version) was the first phone on the market with Tegra3. At the beginning it had horrible thermal problems (throttled like every two minutes), abysmal battery life, fifth energy efficient core was not used at all and so on.

It took some time until it was properly tuned, existing hardware properly put to work, bugs ironed out and now it performs much much better as just after its lauch.

Nexus4 definitely has some teething problems. And not only just with battery life, but also for example serious bugs in GSM/UMTS radio firmware. Which are much much more serious.

---------- Post added at 01:21 AM ---------- Previous post was at 01:18 AM ----------

Quite normal. If not in the flight mode, it will book into the first network it finds. It should allow a call to 112 (or 911) after all.
[Nexus 4 General] Nexitus:
The longest my battery lasted on stock + franco r23 was a day and eight hours or so. That's from 100%->1%

I wasn't using the phone that much though to be honest. However, I am sure I can last a day without a charge.
[Nexus 4 General] ksc6000:
Stock, rooted
[Nexus 4 General] Freshly_Snipes:
Can someone explain why surface flinger is always at the top of my list? No wake locks really. Are any if these something that I should be worried about?
[Nexus 4 General] Rizy7:
On my last charge..

Lasted: 1d 6h 19m

Screen Time: 6h

WiFi always on

Screen Brightness 0% while im in the house

Havent rooted the phone or anything or installed custom ROMs and things
[Nexus 4 General] nellisere:
I'm pretty sure that surface flinger is the touchscreen.
[Nexus 4 General] Jayrod1980:
Mobile data seems to be the biggest enemy here. With ease you can get 6 hours screen even on stock with wfi only. Google or Qualcomm need some patches

Sent from my often RMA'd Nexus 4
[Nexus 4 General] ADJack:
Stock rooted 4.2.0 franco-23
[Nexus 4 General] yslreyes:
Stock rooted and hating current battery life

Sent from my Nexus 4
[Nexus 4 General] fetto666:
Thank you, you seem to know this stuff very well.

This gives me hope! :cool:
[Nexus 4 General] thebeastglasser:
I broke the 4 hour mark. Woohoo!

That's with like 50/50 wifi/HSPA. Sadly no HSPA+ in my area.
[Nexus 4 General] thebeastglasser:
Just realized that I posted the same photo twice... Smooth.
[Nexus 4 General] DowntownJeffBrown:
The newer phones seem to be much better battery on stock. Mine is a 8gb from Nov 13 shipped in the first batch and on rooted stock I got 2 1/2 hours now I can run 4 hours consistently now but can't get much better than that.

Sent from my Nexus 4 using Xparent Blue Tapatalk 2
[Nexus 4 General] rttnpig]:
Using all the time 3g. So happy with the battery
[Nexus 4 General] gear.h34d.2012:
Tried everything. Still bites.

:(
[Nexus 4 General] Jayrod1980:
Either fake or your battery is broken. RMA the phone.

On another note... Most any rev 11 phone on WiFi can get over 5 hours on screen using minimally intensive apps. That is more telling is how long you are getting on mobile. My rev 10 phone rarely breaks 4 hours on mobile but can get close to 6 on WiFi. My last RMA had great battery... And i would have kept it if it didn't reboot constantly on me. I could get over 5 hours on screen stock rooted, no custom kernel, and with everything on and synced.

Sent from my often RMA'd Nexus 4
[Nexus 4 General] Freshly_Snipes:
Google Plus had gone wild! Should I disable it?
[Nexus 4 General] Remcotjuuh:
Some tips on how to kill that mediaserver drain?

Sent from my beloved Nexus 4
[Nexus 4 General] Nuu~:
It's really strange how the battery life differs.

Some get 5+ hours of screen on time, others can barely break the 2 hour mark.

Something that I have noticed is that "Battery Monitor Widget" reports the Nexus 4's battery as 1500mAh instead of 2100mAh.

I've had multiple devices, running all kind of android versions, and I've yet to see BMW reporting the capacity wrong.

I've cleared the battery stats, tried different ROMs, and it still reports only 1500mAh. Even on stock when it was turned on for the first time. Also, I've had this happen oh multiple nexus 4s.

So, could you please check what Battery Monitor Widget reports as your battery capacity? If it's more than 1500, it would be nice to see how much screen on time you get.

P.s. it's reported on the top right.
[Nexus 4 General] Remcotjuuh:
Yup, mine says it too, but I think the app is wrong. Such a small battery wouldn't last a day of moderate heavy usage as I did today, even with that killing mediaserver.

Sent from my beloved Nexus 4
[Nexus 4 General] DowntownJeffBrown:
Just downloaded and checked and it shows my battery as 1500 hmmmm that's messed up.

Sent from my Nexus 4 using Xparent Blue Tapatalk 2
[Nexus 4 General] Capt.PP:
The app doesn't auto adjust to your battery correctly, report this to the dev. You can also set it manually to the correct your battery's mAh.
[Nexus 4 General] gear.h34d.2012:
I can assure you it isn't fake. My coworkers N4 is nowhere near this bad with similar usage. RMA it is.
[Nexus 4 General] Remcotjuuh:
I guess the mediaserver drain remains unsolved

Sent from my beloved Nexus 4
[Nexus 4 General] ethoss:
Hi, any solution to disable fast dormancy? The optimus G has a service menu to disable it but on nexus doesn't work. Unfortunately I haven't a mobile operator that supports FD :(
[Nexus 4 General] Nuu~:
never had any serious drain from media server. only when listening to music, which is understandable.

does it happen without listening to music?

also, on other devices, touch sounds trigger mediaserver in the battery stats. do you have those enabled?
[Nexus 4 General] bartolo5:
I am having your very same issue. If I plug the phone off from the charger and I dont even use it will drain in about 10 hours to nothing with 'Android OS' being the top battery drain. Something is not right and I've tried everything.
[Nexus 4 General] draugaz:
what is that "sdcard"?
[Nexus 4 General] gear.h34d.2012:
I have no idea
[Nexus 4 General] Jayrod1980:
Some of that reporting might be due to the battery tech. Its a lithium polymer not lithium ion and its supposed to use some new tech that allows the phone to charge to a higher voltage. Perhaps the mah rating is counting that but the physical size or whatever else is used to gauge capacity makes it look like 1500mah?

Sent from my often RMA'd Nexus 4
[Nexus 4 General] ntt1409:
can anybody explain for me why "Maps" is on top of the list although i have never ever used it or turned it on? I don't know the phone uses it for what(?)

Settings: GG Now on, Location access on, location report off.
[Nexus 4 General] dcarpenter85:
Impressions so far:

Battery life is not that great, SO FAR. My process for first charge cycle was as follows. I unboxed device, powered on, played around for 10 minutes and then powered off and allowed the device to charge to full. I then installed my micro sim and allowed the device to discharge until it turned off. With very heavy use, the device only lasted about 5 hours until reaching 1%, but it stayed at 1% for almost an hour..which leads me to believe there are some calibration issues out of the box. I am currently on my second charge cycle and battery seems better so far but still not great. Airplane mode battery life is excellent, dropping only 1% in over 8 hours over night. After turning off airplane mode and browsing facebook and checking emails for about 10 minutes, device dropped from 99% to 95%. It seems to me that screen on time is a heavy battery drainer. I have brightness at the lowest setting. I am hoping with a few charge cycles the battery life will start to improve, but we will see. I should also add a majority of my use thus far has been at home and on wifi with excellent signal strength (both wifi and cellular).
[Nexus 4 General] dwang:
I don't think so. If you look at the second pic you can see that it only woke up one time.
[Nexus 4 General] danielvc:
Mine also didn't register the device as awake. Can hurt to check.
[Nexus 4 General] dwang:
I checked and maps is not reporting my location. I never have that enabled.

I'll try disabling Google now and try again. But 15% standby battery drain overnight is atrocious.
[Nexus 4 General] timskyline86:
Trying to figure out the source of my battery drain I found out its navigation that stays on. I used advance task killer to open up the process and finished the "setup" menu. And sure enough my battery drain stop. Went from pulling 300+mAh to 10-100mah when the screen is off. I was losing close to 5% per hour with screen off. Now its closer to 1%
[Nexus 4 General] dwang:
What do you mean open up the process?
[Nexus 4 General] Danny80y:
Battery update: This was on auto brightness 29% left when the screenshot was taken and total screen on time of 1h 1m.

It's plenty good for me that's for sure!
[Nexus 4 General] Gavin S.:
That is very interesting. I will keep that in mind when mine arrives. Thanks for the tip.
[Nexus 4 General] danielvc:
Auto brightness, first cycle.
[Nexus 4 General] timskyline86:
In task killer long press gmaps and select switch to, you'll see that it switches to Navigation and has a prompt for first time use. Once you finish or say ok, maps closes. It went from using 56% of my battery to just 2%

You will see that maps is running and using half the battery. And keeps running even when u force stop and turn all location based things off.

I'm currently at 54% with 2hrs screen time. 6hrs30min up time, about 25min worth of phone call and 1:30hr so playing around with the phone and surfing the web. Couple text. And a 5min game. Some speedtest and messing with setcpu.

I've been running through my Google apps to make sure nothing else is running because of initial setup, but navigation was the problem for me.

Another thing, setcpu does not work once you leave the app even when set, apparently the kernel or whatever overrides it and reverts back to normal. Tried various was and it will not stick

Since I finished typing this and switching back and forth between texting and checking my stats. Bout 15min I lost 2%
[Nexus 4 General] dwang:
Looks like the culprit is a kernel wakelock from msm_hsic_host.

Anybody know what that is and how to disable it?
[Nexus 4 General] gogol:
See that? Android OS took a lot of battery life!

Something is not right with Nexus 4....
[Nexus 4 General] Eclypz:
Doesn't look like you started with a 100% charge
[Nexus 4 General] düdldihüü:
I can't complain about battery life at all. Concerning the pictures: the graph shows a little uphill movement like I was charging at that point but below you can see that I wasn't. Don't know what happened there. I must say that Android could drain less, though.

Edit: 10% left at the point of the screenshots.
[Nexus 4 General] jaZzyjeff818:
Will disabling apps that I don't use affect battery life in positive way? Or might it be bad because it will interfere with other apps?
[Nexus 4 General] düdldihüü:
I disabled all apps that I don't use. E.g. Google+, Gmail, the standard Email app, and some others. Didn't notice any malfunctions but I can say that for example Google+ had some percent battery drainage without me using it.
[Nexus 4 General] jaZzyjeff818:
I disabled all the apps that I don't use as well, which were most of them, when I first got the phone. But I'm gonna enable them all again, even though I won't use them, just to see if anything changes.
[Nexus 4 General] eep2378:
You have something(app) keeping your device from deep sleep(that's why you have idle drain). 77% deep sleep is not great when the phone is idle. Before putting the phone down for the night, clear your recent apps, and check running processes to make sure nothing is running needlessly.
[Nexus 4 General] 850csi:
So is it important to charge the battery first before using the phone?
[Nexus 4 General] timskyline86:
I don't know if it was mentioned, but turn off NFC and make a toggle widget when you want to use it. It drains a lot of battery on this.
[Nexus 4 General] TwistyValhalla:
Try turning location history off and check caching settings.
[Nexus 4 General] mandroid17:
Apparently maps is using GPS even when it's off but it's alright it lasted me all day