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Battery life is very good compared to the previous releases. I ran for forty minutes with Bluetooth turned on while listening to tune in radio and using endomondo app. Google now turned on. I lost fifteen percent compared to losing 35% with similar usage. Very satisfied.
What do you think?
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Sent from my Galaxy Nexus using xda premium
Why would you make a thread linking to a post you made in another thread?
Bit unnecessary. To answer the question it's too early for me to thoroughly test battery life.
Bump
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thats not fantastic at all...
I would wait for at least 2 complete battery cycles to make a thread like this.
ssvijay said:
I would wait for at least 2 complete battery cycles to make a thread like this.
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Click to collapse
Ditto. My phone ran like a champ on a freshly flashed ROM. Then my phone realized it was born as a Verizon-Nexus mutt and had a psychological breakdown to the point of 1.75 hours of on-screen time the day after.
Twas a sad day
I'm reading my work email over the exchange service account. After upgrde to 4.2 the exchange service process eats my whole battery so I can't tell about any improvement.
True
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When it comes to battery life (in general, though especially true with this newest release), it's crazy how many divergent opinions you get. Some people claim to get amazing battery life (exactly what quantifies for amazing?) and some people claim the battery life is crap. This is just to remind you that unless you have a good way of measuring battery life, your measurements can be plus/minus hour(s). Someone who just leaves their phone on a black screen with no wi-fi and cell may get 10 hours of screen-on time. Someone who is watching videos with cell/wi-fi might only get 2 hours of screen-on time.
In the future, I can make two recommendations:
Always report a complete cycle (from 100% to close to 0%). This is because the battery does not discharge at a constant rate.
Always report screen on time
Average for GNexus in previous builds was 2-4 hours. I've no idea about the plus/minus, but they tend not to be under 2 and over 4 with moderate usage. I think an average of 3-3.5 hours is what most people are happy to report.
And that is really sad because my old atrix used to get over 8 hours on Wi-Fi with over twelve hours of standby time. I wish they would make this phone but with a smaller screen size. The technology used on this phone is not battery efficient at all.
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modgadgets said:
True
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Click to collapse
This tells us nothing....u don't show ur screen on time and uve been charging off and on..
Battery life in sleep mode is worse for me. I am losing 3% an hour with the screen off, I used to lose only 3% total overnight with the screen off not per hour. I tested this over the last 4 hours only waking the tablet up long enough to check the battery level and it has gone down by 3% each time. Nothing has changed with any apps or setting since I upgraded from 4.1.2 to 4.2. I got concerned when I noticed this morning that my battery was over 15% less then when I went to sleep. Anyone else notice this?
This is very good battery by my standards.
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Soldier 2.0 said:
This is very good battery by my standards.
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Click to collapse
Not great by mine....and I have an LTE GNex
This is my battery life stats after using 4.2 for 2 days... Is it good?
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The screen on time is good but not much of an improvement. Also it appears you had WiFi off for most of the time.
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Last shot before my battery dies...
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re
50% left 23h 11m on baterry. wifi and location on all the time and 10% wasted on need for speed most wanted also. brightnes at 80% aprox. im very pleased with the baterry really maybe becouse the phone is relatively brand new and the battery still very fresh allways charging with care after discharge not on and off the charger all the time
yeah using the 4.2 factory image with trinity a4 and getting great battery life
Hello All,
I just received the DMA6 update from Samsung... I know this update is new but it would be good if all of you can post your comments on the battery drain after this update.. Feel free to post screenshots of the battery..
Sent from my GT-N7100 using xda app-developers app
Since flashing my battery life and deep sleep battery life is greatly improved. Very pleased with this update.
Thanks for your reply.. I just installed the update and am a bit skeptical and feel as if the battery is draining faster when the screen is on.. Might be that when the phone is in idle or deep idle the battery would be dropping less significantly.. let us wait for other users to post their comments... hope fr the best...
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I had no batt issues since upgrading to 4.1.2
with this new update battery life seems better. Left my phone at 10% before i slept and woke up to it still at 10% so deep sleep is really good
Thanks Paulito.. As i said i am suspecting that deep sleep is good now... but do you notice a faster drain when screen is on.. Do let us know.. I will also keep an eye on the battery stats for the coming weeks and keep all posted.. :beer:
Sent from my GT-N7100 using xda app-developers app
Guys, install Batter Monitor Widget and do a real test to see what your standby and screen on consumption is in %/hour. We need real numbers, not anecdotes.
With DLL7 I get between 0.6 and 2%/hour drain in standby. Screen on averages 10-18%/hour. Gaming is usually 30%/hour. Wifi on, brightness on auto, location on, Facebook , google plus, tapatalk and 2 gmail accounts syncing with notifications.
I'd love to see what this new firmware gets under those conditions .
I can't wait until it's available for my variant. On DLL3 my battery was terrible! I went back to 4.1.1 where I can easily go all day with 70% of my battery remaining.
I shall install the battery monitor widget and will upload my findings in a couple of days..
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Battery seems the same to me though deep sleep is killing it
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We need to get our hands on the release notes if any to get more info. On what the update is actually doing.. 2 updates back to back... Seems interesting..
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KyleDevlin12 said:
Battery seems the same to me though deep sleep is killing it
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Well 4.5 hours of screen time isn't that good at 33%. I got 9 hours the other day. And still had 12% left.
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I said battery seems the same mate the only thing that seems to be proved is deep sleep. I used to loose around 5 to 7 % in the night while sleeping and after the update I only loose 1 to 2 %.
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Ma6 seems to be tuned nicely except I experience battery consumption by screen and light is worsen.
Edit : Sorry for mislead but actually it was something bug that my stock battery status have not reported application which i have used, after restart its fine now
its <5%/hr only while screen on.
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dr.ketan said:
Ma6 seems to be tuned nicely except I experience battery consumption by screen and light is worsen.
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Click to collapse
On my second charge and noticing this lost 5 % in 40 mins just surfing the net. No idea what sammy is up to :s
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NightHawkUndead said:
Since flashing my battery life and deep sleep battery life is greatly improved. Very pleased with this update.
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Click to collapse
Pardon me for asking but what is "deep sleep" ?
Sent from my GT-N7100 using Tapatalk 2
CPU runs at minimum speed <200Mhz is deep sleep
you need application (like better battery stats) to check it.
dr.ketan said:
CPU runs at minimum speed <200Mhz is deep sleep
you need application (like better battery stats) to check it.
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Click to collapse
Thanks Doctor but how to enable this deep sleep in N7100 ?
Sent from my GT-N7100 using Tapatalk 2
Nothing required to enable it,
it should go to deep sleep, if it doesn't go to deep sleep then you have to find out which process stoping it to do so.
dr.ketan said:
Ma6 seems to be tuned nicely except I experience battery consumption by screen and light is worsen.
Edit : Sorry for mislead but actually it was something bug that my stock battery status have not reported application which i have used, after restart its fine now
its <5%/hr only while screen on.
Sent from my GT-N7100 using xda premium
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Click to collapse
I installed yesterday and experience the same thing as the doctor. Wifi is still a mess, connection is difficult when the phone comes out of deepsleep
Send from my GNote 2 what else...
Some what solved now im getting 7hrs screen time with heavy usage
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I recently bought a GSM galaxy nexus (NTT DoCoMo version) and I use it on T-Mobile's prepaid network. The original battery that it came with was terrible.. Literally only lasted 7 hours regardless of screen on time. So I bought a stock Samsung battery off eBay thinking maybe it was a bad battery. No help whatsoever. I've flashed different ROMs, radios, and different kernels. Can anyone help me figure out what's going on? I had a Sprint Galaxy Nexus and I could get up to a day on the battery with 2.5 hours of screen on time so I know the Galaxy Nexus can last a long time. What's the deal?
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shmoozie said:
I recently bought a GSM galaxy nexus (NTT DoCoMo version) and I use it on T-Mobile's prepaid network. The original battery that it came with was terrible.. Literally only lasted 7 hours regardless of screen on time. So I bought a stock Samsung battery off eBay thinking maybe it was a bad battery. No help whatsoever. I've flashed different ROMs, radios, and different kernels. Can anyone help me figure out what's going on? I had a Sprint Galaxy Nexus and I could get up to a day on the battery with 2.5 hours of screen on time so I know the Galaxy Nexus can last a long time. What's the deal?
Sent from my Galaxy Nexus using xda app-developers app
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Click to collapse
What is the 'Battery' menu under Settings telling you?
shmoozie said:
I recently bought a GSM galaxy nexus (NTT DoCoMo version) and I use it on T-Mobile's prepaid network. The original battery that it came with was terrible.. Literally only lasted 7 hours regardless of screen on time. So I bought a stock Samsung battery off eBay thinking maybe it was a bad battery. No help whatsoever. I've flashed different ROMs, radios, and different kernels. Can anyone help me figure out what's going on? I had a Sprint Galaxy Nexus and I could get up to a day on the battery with 2.5 hours of screen on time so I know the Galaxy Nexus can last a long time. What's the deal?
Sent from my Galaxy Nexus using xda app-developers app
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Could you post some info on battery drain statistics from battery settings tab or preferably gsam monitor over a full drain? I could probably help you out, just need some more info. Also try flashing fancy kernel if you haven't already. This is a newer kernel that gives the best battery life you'll find freshly flashed.
Before discharging toget battery stats I would try charging to 100% and using "battery calibration" by NeMa to clean your phone's batterystats file and then drain to zero with a screen flashlight or running gallery slideshow. This can always be a problem no matter how healthy your battery is.
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This is what I have showing for my battery so far. I flashed the newest radio last night and that seems to have helped a little bit with the battery. I have tried the battery calibration and it didn't really seem to help much.
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shmoozie said:
This is what I have showing for my battery so far. I flashed the newest radio last night and that seems to have helped a little bit with the battery. I have tried the battery calibration and it didn't really seem to help much.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Try to flash stock rom,look like hardware battery problem.
kostyakgn said:
Try to flash stock rom,look like hardware battery problem.
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I have flashed a stock 4.2.2 ROM a week or so ago and I was still having this issue. I bought a new battery too and its still happening. Flashed the fancy kernel today and it seems to be helping a lot actually.
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The stock kernel performs way better then what you are experiencing. A custom kernel may help a bit, but it's not magic. I'd recommend using the app BetterBatteryStats in order to find out what's going on.
Do any of you think that me restoring apps would have anything to do with the battery drain? I'm not seeing anything out of the ordinary in the GSAM battery stats but the battery drains way too quickly. 10% per hour even when I'm not using it..
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shmoozie said:
I have flashed a stock 4.2.2 ROM a week or so ago and I was still having this issue. I bought a new battery too and its still happening. Flashed the fancy kernel today and it seems to be helping a lot actually.
Sent from my Galaxy Nexus using xda app-developers app
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Click to collapse
Glad to hear that fancy kernel is helping. It's probably the closest thing to magic you'll find. I agree that 1 hour of screen time and under 12 hours is under par, but I was having these same issues 2 months ago and could not believe how crappy battery life was. It really got better though trying a bunch of different radios to find the right ones, using minimal gapps/resource hogging apps as possible, finding the right build.prop tweaks to use, and most helpful flashing some good reliable kernels like fancy and AK/anarkia that have incredibly useful customizations that stock just doesn't have, I.e., contrast and color settings, battery friendly governors and frequency profiles, optimized smart-reflex, and custom regulator voltages for display.
Well, didn't feel like it lasted too long. Fell asleep with my battery at 33%, woke up 3 hours later and it's dead. I'm ready to throw this phone out the window.
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100% no data connection and 100% no or unknown signal. I have almost full bars. WHAT THE HELL
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Battery App
I've tried to find a rom and kerneI that would help with battery too, nothing made that much of a difference though. I use the 2x battery saver app now. I get at least double the battery life sometimes more.
shmoozie said:
100% no data connection and 100% no or unknown signal. I have almost full bars. WHAT THE HELL
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Click to collapse
I see you got the app. Good. Now a few minutes isn't enough time to gather reliable stats. Review the results after a full drain cycle of the battery. Check partial wakelocks and alarms for suspicious activity.
Petrovski80 said:
I see you got the app. Good. Now a few minutes isn't enough time to gather reliable stats. Review the results after a full drain cycle of the battery. Check partial wakelocks and alarms for suspicious activity.
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Click to collapse
Here's what was listed on BBS after a full drain. Do you see anything unusual? I turned my data on and kept it on 2G to prevent the no or unknown signal from eating more battery but that was the only change. Battery life still looks terrible.
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shmoozie said:
Here's what was listed on BBS after a full drain. Do you see anything unusual? I turned my data on and kept it on 2G to prevent the no or unknown signal from eating more battery but that was the only change. Battery life still looks terrible.
Sent from my Galaxy Nexus using xda app-developers app
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I'm missing screenshots of partial wakelocks and alarms.
7175 said:
Could you post some info on battery drain statistics from battery settings tab or preferably gsam monitor over a full drain? I could probably help you out, just need some more info. Also try flashing fancy kernel if you haven't already. This is a newer kernel that gives the best battery life you'll find freshly flashed.
Before discharging toget battery stats I would try charging to 100% and using "battery calibration" by NeMa to clean your phone's batterystats file and then drain to zero with a screen flashlight or running gallery slideshow. This can always be a problem no matter how healthy your battery is.
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Click to collapse
No need for the snake oil app, as simply unplugging the phone after a full charge wipes battery stats. Wiping battery stats and draining to zero aren't going to have any bearing whatsoever on this issue and would needlessly shorten the battery's serviceable lifespan.
Petrovski80 said:
I'm missing screenshots of partial wakelocks and alarms.
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Whoops.. I forgot to screenshot those. I'll get those later today. So I put my phone in airplane mode to see if maybe it was the reception... Phone kept draining. I will try to wipe everything off the phone later and not install any apps and see if that helps.
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According to these stats, it looks like Google talk and the calendar are my biggest wake locks? I disabled Google talk, turned off location history for Google maps last night, what should I do about the calendar? I feel like my phone is becoming useless because I have disabled so many things.
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Forgot to add these, if anyone can help it would be greatly appreciated. Thank you.
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I'm not sure what's going on with the graph from my battery usage page. For some reasons, it would jump to 100% which is impossible. Anyone of you has seen something like this before?
Thanks in advance!
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Same here... Every discharge cycle. But performance and battery life are not compromised....
I noticed the same thing today for the first time. But not as bad or as much as yours is showing.
I see those spikes on my Nexus 7 2013. And I get a terrible battery as well. My tablet loses about %30 of its battery charge during night when it is in sleep mode. Does anybody experience the same issue? Is there a way to fix this?
rezaaz said:
I see those spikes on my Nexus 7 2013. And I get a terrible battery as well. My tablet loses about %30 of its battery charge during night when it is in sleep mode. Does anybody experience the same issue? Is there a way to fix this?
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Click to collapse
You must have an app installed that's causing that much drop off. Mine drops off like 2%.
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I have seen spike on mine, too, but not up to 100%, only 1-2% more than its actual level. I thought it's because it was the first charge cycle and the reading weren't yet calibrated. I'll see if they go away after a few more cycles.
I don't have battery drain, as well, I lose 2-3% overnight with wifi and sync still on.
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con100 said:
You must have an app installed that's causing that much drop off. Mine drops off like 2%.
Sent from my Galaxy Nexus using Tapatalk 2
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Oh. Bummer. Do you know how I can find which application that is?
rezaaz said:
Oh. Bummer. Do you know how I can find which application that is?
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Click to collapse
You can try an app called BetterBatteryStats it gives you a more detailed look at what's using your battery.
Sent from my Nexus 7 using Tapatalk 4
Hey everyone,
My Nexus 7 (2013) is having the same problem with battery graph. There are about 2-3 spikes to 100% in every discharge cycle.
I noticed this problem has been reported in different cycles, but no one seems to be able to give a definite answer of what the source of this problem is.
BTW, after a reset to factory settings, the problem still persists.
ANY idea why this is happening???
SEARCH b4 posting!!!
http://forum.xda-developers.com/showthread.php?t=2381550
henklbr said:
SEARCH b4 posting!!!
http://forum.xda-developers.com/showthread.php?t=2381550
Click to expand...
Click to collapse
You just keep referring to that forum without actually answering my question, even on that forum
Hey guys
I got my nexus 7 on Christmas day and as you can see in the screenshot its battery life is pretty good
I would have thought that the android os would go down from 11% to about 4-5% but it hasn't, I'm only on my 3rd charge cycle
What do you guys think ?
Jack
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No.
With your tablet being on for so long (great battery life btw), it was doing literally nothing other than idling. If you were to use it a lot, playing games, reading stuff, etc., it would be down much lower. Don't worry about it.
Thanks
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No problem!
Sent from my Nexus 7 using Tapatalk
My tablet has suddenly become not as good android is is at 12% and screen on time is 6hours and 20 mins with 28% left
Seems the tablets battery life isn't very consistent?
I use my tablet everyday with the same apps etc
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JackHanAnLG said:
My tablet has suddenly become not as good android is is at 12% and screen on time is 6hours and 20 mins with 28% left
Seems the tablets battery life isn't very consistent?
I use my tablet everyday with the same apps etc
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
You rooted? BetterBatteryStats log.
Im not but I'm at 17% left with 7.5 hours on screen time so I guess it's about the same
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I had the same inconsistency at the begining,but,later,it becomes more stable.If you will still not be good with the battery life,you can flash a custom kernel.With ElementalX,I have great battery life with stock ROM values.
ionescugeo9942 said:
I had the same inconsistency at the begining,but,later,it becomes more stable.If you will still not be good with the battery life,you can flash a custom kernel.With ElementalX,I have great battery life with stock ROM values.
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I'm not sure if I want to root it etc that's the reason I bought a nexus although if battery life gets bad then I will root it and flash a custom kernel
J
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JackHanAnLG said:
I'm not sure if I want to root it etc that's the reason I bought a nexus although if battery life gets bad then I will root it and flash a custom kernel
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Click to collapse
That's exactly why I got a Nexus - because I knew it would be easy to root and mod, with tons of ROM choices, haha! But I think I get your point - they are great out of the box without a bunch of bloatware. Just got mine and haven't really kept tabs on battery usage yet, but it has been impressive, both stock and on CM11.