Database Users

Battery Life

Thought it would be a good idea for people to share their average battery life on whatever rom/kernel you are running. And also what you use your TF for.

my average running EeBomb with rom stock kernel was about 18 hours I play a lot of games, music player running about all day and a lot of XDA. Just switched back to Revolver Blades 1.2 OCkernel so far very unimpressed with the battery life you lose by overclocking by.2ghz not really worth the little bit of speed you gain for significant battery drain. I flashed yesterday fully charged need a few days to see the average not looking good though

It really does depend with Blades/Krakd if i use stock clock and mild use probably 20hrs if i o/c to 1.59ghz and rape it for a day gamming through hdmi using a ps3 controller through bluetooth 8hrs tops
If i barely used it at all stock freqs or even under clocked u/v then probably 36hrs
Its a bad question and you will get different answers 7 days a week although i have found krakd/blades to be fair on my battery no matter what i do
Sent from my Transformer TF101 using xda premium

I would say it sucks at best, at least mine anyway. My transformer was fully charged yesterday & I didn't use it at all. So after 16 hours with the screen off the battery is at 74% with zero use. Battery info tell me that 72% of battery use was while idle. I doesn't seem to make a big difference if I turn on flight mode. I have tried Auto Airplane Mode app too with the same result. It might be time to wipe my Transformer & start over.

Well
im not really testing my battery
but in friday it was disconneted since 8AM
until 7PM
from 14:30 in really heavy use with 80% dock battery as start
i downloaded 2 torrents
browsed the internet all the time
and sometimes a little bit of youtube
brightness around 20
ended with 10%
70% battery lost in around 5 hours
in really heavy use
krakd rom 1.5.2
OC to 1.2 GHZ
i think its pretty impressive
considering i still have a full tablet battery life and dock lost only 70%
which not a lot for this use

There is already a ton of threads on this and one that was organised to collect it, which includes a POLL for a much better overview. Use search if you please....
Sent from my Transformer Prime TF201 using Tapatalk

Do I Have a Battery Problem?

I have had my Note for 9 days now and wonder if my battery may have an issue. Yes the phone is entering deep sleep, No I don't have any specific app that is running it dry. Screen takes most of the juice. I have it set at automatic brightness. Everything is off. It does auto sync. Signal is fantastic. I can hardly get 3/4ths of a day. I usually spend 30 minutes on the phone. 30 emails, 2 hours browsing, 30 minutes on tapatalk. This has always been my pattern and coming from a Motorola photon I always made the day easily. I'm on ISC (stock) not rooted just plain old stock. I'm thinking maybe a battery problem? What do you all think? Thanks for your help.
Sent from my GT-N7000 using Tapatalk 2

swid441 said:
I have had my Note for 9 days now and wonder if my battery may have an issue. Yes the phone is entering deep sleep, No I don't have any specific app that is running it dry. Screen takes most of the juice. I have it set at automatic brightness. Everything is off. It does auto sync. Signal is fantastic. I can hardly get 3/4ths of a day. I usually spend 30 minutes on the phone. 30 emails, 2 hours browsing, 30 minutes on tapatalk. This has always been my pattern and coming from a Motorola photon I always made the day easily. I'm on ISC (stock) not rooted just plain old stock. I'm thinking maybe a battery problem? What do you all think? Thanks for your help.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
I've only had my note a couple days. I've gotten about 10-12 hours out of it both days. But that was with what I would call moderate to less then moderate usage. A little web browsing and facebook, probably less then 2 hours total. Maybe 20-30 texts and reading emails for maybe 30 minutes and 10-15 minutes of calls. I'm not sure what to expect, I am coming from a rooted HTC evo which I ran a lot of custom roms/kernels on, so I got great battery life with it. But I don't remember how it performed stock. The Note gets me through my work day, but not much more.

Charge the battery to full.
Let it drain completely (till it turns itself off).
Charge the battery to full once more.
I don't know the science behind it, nor does everyone benefit from doing this. (Something to do with calibration of the battery) but I do this after every major update, or new phone. I'm currently sat on 44% battery after 24hours usage (Moderate, certainly not heavy usage).
You have to remember the note will consume a large amount of battery simply because of its screen size (As you've noted its the biggest offender).
Someone with more experience/knowledge will hopefully be along shortly to give you better more informed advice but this is what I know from experience.

Normally what I have seen is I get approx near
4 hours of battery life (screen on time)
Sent from my GT-N7000 using xda premium

Batterylife on samsung ics (XXLPY) is terrible if you compare it to gingerbread. It is nearly cut down in half. I guess touchwizz has gotten more hungry than before or samsung has altered ics so much that the advantages are gone.

davexeno said:
Charge the battery to full.
Let it drain completely (till it turns itself off).
Charge the battery to full once more.
I don't know the science behind it, nor does everyone benefit from doing this. (Something to do with calibration of the battery) but I do this after every major update, or new phone. I'm currently sat on 44% battery after 24hours usage (Moderate, certainly not heavy usage).
You have to remember the note will consume a large amount of battery simply because of its screen size (As you've noted its the biggest offender).
Someone with more experience/knowledge will hopefully be along shortly to give you better more informed advice but this is what I know from experience.
Click to expand...
Click to collapse
I do this method every 2 or 3 months on all my devices (iPod, phone, Laptop) so that the percentage or battery shown on the devices is more accurate. I read somewhere that since most of us charge out devices before battery dies completely, like we charge it when its 80 or 60 or even 20 instead of charging it when it completely dies, doing so makes the accuracy of the percentage very low but we can't help it but to charge it at what ever percentage for various reason thus, I always drain all my battery on devices completely than charge it full before using (minus the first full charging). Any ways if your ICS it seems to be a bug, it cannot be fixed until a new update.
Sent from my GT-N7000 using xda premium

Do the charge/drain cycle.
I've done this and improved the battery life immensely.
Currently my note has been on for 3d 21h 16m 1s and has 11% charge left - okay so it hasn't been used much over the weekend but that not a bad standby time.

Standby Times?

Hey everyone,
Standby time is probably one of the most important features in a ROM/Kernel combination and its idle time is important to me.
This is due to the fact I work most days, until evening and by the time I get home, I have a couple of hours to kill.
Which is usually food, wash and chill.
On stock, I was averaging about 2 days, with 2.5% drain an hour, on standby.
I flashed PA 2.54 and Faux kernel and HOLYCRAP am I impressed,
0.8% drain an hour on idle.
Just out of curiosity, is this a good average?
Are their better kernels for battery time than Faux, as I was going to try Motley but Faux has impressed.
What do you guys aim for in Idle time?
Thanks,
Wilks3y

Wilks3y said:
Hey everyone,
Standby time is probably one of the most important features in a ROM/Kernel combination and its idle time is important to me.
This is due to the fact I work most days, until evening and by the time I get home, I have a couple of hours to kill.
Which is usually food, wash and chill.
On stock, I was averaging about 2 days, with 2.5% drain an hour, on standby.
I flashed PA 2.54 and Faux kernel and HOLYCRAP am I impressed,
0.8% drain an hour on idle.
Just out of curiosity, is this a good average?
Are their better kernels for battery time than Faux, as I was going to try Motley but Faux has impressed.
What do you guys aim for in Idle time?
Thanks,
Wilks3y
Click to expand...
Click to collapse
Wifi off I can go 8+ hours and it still registers 100%. When my N7 is asleep, the battery usage graph is absolutely flat.
I haven't let it sit around for days at a time, but when I'm busy or doing other things, flat.

khaytsus said:
Wifi off I can go 8+ hours and it still registers 100%. When my N7 is asleep, the battery usage graph is absolutely flat.
I haven't let it sit around for days at a time, but when I'm busy or doing other things, flat.
Click to expand...
Click to collapse
Are you using 4.2.1? I just came from 4.1 and 4.2 needs serious improvements.
Sent from my Rooted Gameboy

osmosizzz said:
Are you using 4.2.1? I just came from 4.1 and 4.2 needs serious improvements.
Sent from my Rooted Gameboy
Click to expand...
Click to collapse
I'm using completely stock unrooted 4.2.1 and can say no, when it comes to standby battery there's basically no room for improvement. I don't have anything syncing in background (that's what my G'nex is for) and don't lose any battery during idle. I can leave it setting for several hours (as in more than 6) at a time and when I check it the most battery loss I've ever seen is 2%. And that's when the battery is below 50% already, if I start at 100 it won't move for 9+ hours of standby.
Sent from my Nexus 7 using xda premium

95Z28 said:
I'm using completely stock unrooted 4.2.1 and can say no, when it comes to standby battery there's basically no room for improvement. I don't have anything syncing in background (that's what my G'nex is for) and don't lose any battery during idle. I can leave it setting for several hours (as in more than 6) at a time and when I check it the most battery loss I've ever seen is 2%. And that's when the battery is below 50% already, if I start at 100 it won't move for 9+ hours of standby.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Im on PA 2.54, which is 4.1 based.
I would love to know how you guys are getting no loss through idle time?
Care to explain some tips?
thanks

I have mine on airplane mode and i come back after work on a fully charged tablet and it's down to 82 percent.
Sent from my EVO using xda app-developers app

Have to say the idle time is pretty stellar for me. I use the N7 for a monitor on my stedicam suit. Even with full day of monitoring once she goes to sleep I can almost anticipate 1% drop an hour.
Best settings are the airplane with 30% brightness.
When I'm rocking and rolling full brightness with monitoring HD through otg USB power is still reliable.
Sent from my Nexus 7 using XDA Premium HD app

Nexus 4 Battery Life

Hey Guys,
A bunch of people are complaining about the battery life on Nexus 4. I've been waited for a couple days since I got the device, to have enough confident about the battery before I make any post here. Yes, the phone battery drain pretty fast on the first few cycles. After a bunch more charges later, let me tell this, the battery life did get significantly better. It lasted about 10-15 hr depends on the load of the usage.
Here is my typical day, off the charge at 100% in the morning, listen to a few songs, checking emails, and messages while getting ready for school. About an 30mn to 1hr of internet browser and youtube videos while on the bus. By 1-2pm the battery drop the about 70-80%. I put the phone in silent mood til i'm done with all my classes. On the way back home on the bus, I listened to a bunch of music, web browsing, maybe a few phone calls, texts or games.
Compare to my old phone, Samsung Galaxy S2 T989, im impressed with the Nexus 4 battery life. My Galaxy S2 battery always die on the bus coming back home. What I'm trying to get at: if you're a light to medium user like me, then get this phone. I was hesitate at first because I always have bad experience with android battery life. But Google seem to get its OS right with this nexus device, mainly because the battery drain minimum while in sleeping mood.
Can you post your Nexus 4 battery performance screenshot if you have been using the phone for more than a few days ?

Is there supposed to be a question being asked? Or a statement as this is in the Q&A forum.
I agree with you on many points. People need to wait at least 5 to 7 days for the battery charge to fully kick in. The first days mean absolutely nothing as it is still being aligned plus the user is still installing apps and setting up their phone.
There are some notable problems in the default kernel that uses more battery Usage than normal too.
Sent from my Nexus 4 using xda premium

From full battery to this overnight + breakfast usage. Rasbean + Matr1x v3.0. Never seen anything like it. Coming from the GN, this phone is a different dimension altogether. On any aspect..

Had phone for 5 days. Drained phone to 10% then fully charged. Moderate to light use made it through a day.
Stock rooted + Franco Kernel.
Sent from my Nexus 4 using xda app-developers app

Had phone for 5 days. Drained phone to 10% then fully charged. Moderate to light use made it through a day.
Stock rooted + Franco Kernel.
Sent from my Nexus 4 using xda app-developers app

can someone post how the battery drain is wihr stock kernel with normal using phone ?

what do you think?
Getting this i am on stock kernel and stock rom
is it low?

rhut_tiger said:
Getting this i am on stock kernel and stock rom
is it low?
Click to expand...
Click to collapse
Depends on how much screen time you got, which you didn't show us.

The trick is to be careful about using mobile data when signal is bad, I switch to WiFi when home to avoid unnecessary battery drain.
Sent from my Nexus 4 using xda app-developers app

What is this obsession for battery life, it lasts me well through the day with moderate/heavy use. I charge it at night (if needed) and unless you are homeleless this shouldn`t be a problem. It`s a great phone and i enjoy using it.

gee2012 said:
What is this obsession for battery life, it lasts me well through the day with moderate/heavy use. I charge it at night (if needed) and unless you are homeleless this shouldn`t be a problem. It`s a great phone and i enjoy using it.
Click to expand...
Click to collapse
I thought the same until my N4 actually arrived, it seems battery life is abysmal compared to my Optimus 2x which didnt have anything really spectacular in regards to battery size. On my O2x I could get 1.5 - 2.5 days depending on use, hitting atleast 1 .5 which was good and acceptable for me (I can charge at night anyways) however my N4 doesnt even reach 13 hours on similar usage!.
I am quite a light users of smartphones however I do like to have a power phone when it comes to using it on the basis of smoothness and capabilities if I need to say do work on my phone, I rarely play games though. Main usage is 2 email accounts on poll 1 hour steps, a third account that is an exchange server and polls in 30 minute steps and thats about it with some brief browsing and a handful of texts (been a quite time since I got my N4), this is less usage than my O2x and yet it still performs alot worse!
I was hoping of staying with stock as I was expecting it to finally be good, comparing it to LG stock attempts it is but battery life isnt . I will be trying the combo Vangelis13 mentioned, raspbean and matr1x kernel as that seems like a great mix however Parandroid has been on the table and it seems like alot of being are getting good results so I will try it soon .
If I can get more than a day of usage I would be really happy, if I was playing games or doing really heavy tasks I wouldnt expect it to last but right now it is doing pretty much nothing and dieing far to fast!.

One thing I've noticed since coming to N4 from S2 is that phone calls drain battery much more significantly on the N4. I could make an hour long call on my S2 and it would use no more than a couple of percent battery but the N4 used 15% for an hour long phone call the other night.

If I didn't own a nexus 4 and came to this thread to find out about it's battery life I would expect it to be good.
Point is you guys are misinforming everyone. The battery is mediocre and that's it.
It won't last a full day if you use it constantly and I do need two charges / day many times.
Let me put it this way, you will only get roughly 3 hours of screen time on stock everything. If that is good for you then it's will have good battery life, if not then you will say it's got poor battery life.

chrisastrous said:
If I didn't own a nexus 4 and came to this thread to find out about it's battery life I would expect it to be good.
Point is you guys are misinforming everyone. The battery is mediocre and that's it.
It won't last a full day if you use it constantly and I do need two charges / day many times.
Let me put it this way, you will only get roughly 3 hours of screen time on stock everything. If that is good for you then it's will have good battery life, if not then you will say it's got poor battery life.
Click to expand...
Click to collapse
It's always incredibly funny when someone comes in saying everyone else's subjective battery advice is bad then claims his subjective battery advice as correct.
Sent from my Nexus 4 using Tapatalk 2

joshnichols189 said:
It's always incredibly funny when someone comes in saying everyone else's subjective battery advice is bad then claims his subjective battery advice as correct.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
You clearly misunderstood my post. Food you even read it?
There is nothing subjective about 3 hours screen time.

My battery is fine.
Sent from my Nexus 4 using xda app-developers app

madmike413 said:
My battery is fine.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
madmike413!!!
How do you got this battery life?!!
mine is insanely bad with trinity kernel and toolbox and paranoid android.
thanks..

StayGreen said:
madmike413!!!
How do you got this battery life?!!
mine is insanely bad with trinity kernel and toolbox and paranoid android.
thanks..
Click to expand...
Click to collapse
His phone was mostly on standby/deep sleep mode. That's how it lasted 2days.
Sent from my Nexus 4 using Tapatalk 2

chrisastrous said:
If I didn't own a nexus 4 and came to this thread to find out about it's battery life I would expect it to be good.
Point is you guys are misinforming everyone. The battery is mediocre and that's it.
It won't last a full day if you use it constantly and I do need two charges / day many times.
Let me put it this way, you will only get roughly 3 hours of screen time on stock everything. If that is good for you then it's will have good battery life, if not then you will say it's got poor battery life.
Click to expand...
Click to collapse
+1
you are perfectly right.
I come from an iPhone 4s, which I changed because the battery life wasn´t that great and I thought it was time to try something new.
Got the N4 last friday and played around with it during the weekend.
Monday, tuesday and wednesday this week... none of these days I´ve been able to come back home with the phone still on.
I wake up at 7.30am and I usually am back home at 6pm.
In my opinion, and honestly should be in everyone´s opinion, 10 hours of battery life are unacceptable, whatever the usage is (considering that 7.30 of those 10 hours I was at work)
I have till friday this week to return it, which is a pity because the phone is great

i get 5-6 hours sot..
rom is omnirom 5.1.1 hellscore kernel b73.
100mv undervoltage hellsactive governer.
think 7 would be possible if google services would not take a quarter of the battery.
the screen is not taking that much battery as one would think.
think most issues with battery life come from fake original battery replacements.
had 3-4 sot using "original" battery. but after replacing with real genuine from official lg spare parts shop 5-6...
Sent from my Nexus 4 using XDA Free mobile app

[Q] How is the battery performance?

Hi,
I'm switching from Note 1 to Nexus 4 which should arrive this week. I wonder what the battery performance is like for an average user, does it last alteast a day (10hrs plus) with moderate usage?
Also, I heard glass back issues, does it really needs to be cared for a lot?

I just switched from the note 1 also to the nexus 4. Have had this phone for almost 2 weeks now. Battery life is a lot better than the note. I'm almost always on WiFi. I'm getting about 13+ hours out of the battery. I flashed the Franco kernel and noticed a slight improvement also. Deff a lot better battery life than the note
Sent from my Nexus 4 using xda premium

Battery life is awesome.
I get about five hours screen on time
Sent from my Nexus 4 using xda app-developers app

Right now I'm using the CM nightlities and franco r71 kernel and my battery is pretty good. It easily lasts a day, right now it has about 50% battery with about 10 hours on and 1hr 40min screen time on. I've uploaded a picture of my battery with one of the older nightlies. But some people have really good battery life and others aren't as good, it just depends if you get a lucky phone.

Battery live has been great for me. Easily over 3:30 on-screen time, sometimes 4:00, and less often I hit 4:30. At the end of the day and I usually still have some juice left. I use FrankenKernel and Trinity Four.
Sent from my Nexus 4 using xda premium

Battery life is subjective.
Sent from my Nexus 4 using Tapatalk 2

I can get at least four hours screen on time, sometimes over five, depending on other factors such as signal strength and whether I'm on WiFi or mobile networks.
Just been playing with it for the last hour and this is what it's looking like ... 84‰ battery remaining with one hour eleven minutes of screen time. Connection via mobile networks is usually more taxing though.
Sent from my Nexus 4 using Tapatalk 2

Stock I could go ~12hrs with moderate use and ~18hrs with light use.
With franco kernel r72, I get 2days with light usage (1.5hrs screen on, 1.5hrs call time, auto brightness, wifi on, bt on, gps on, location services on, push for gmail/plume) and a day with moderate use (same as previous with 3-4hrs of pandora streaming and 1hr of video.)

I can reach 2 hours of screen time when entirely on HSDPA or nearly 4 hours entirely on Wifi with stock kernel until the battery hits 25% mark.
With franco or harsh kernel I can reach 2 hours 30 minutes on HSDPA and 4 hours on Wifi until the battery hits 25% mark.
I send a lot of Whatsapp messages and browsing, not much phone call though. I don't measure battery life by phone up time because most of the time it's screen on time that matters.

Battery life seems great for me