Database Users

Battery life been sucking...

I don't know if it's my imagination, but since the 2.4.6 update, my battery life has dropped a bit. By the time I get into my office from my morning commute, I'm anywhere in the 65-70% battery life after unplugging from a full charge. I haven't done anything new. I always unplug around 8:30 am when I head out, I do some light chatting with gf, browse some sites, check facebook (usually very briefly), and maybe sometimes do a little reading on my device. By the time I get into the office around 9:30 or 10 AM, I'm usually around the 80-85% area with battery.
Lately, doing the same thing, I'm seeing the aforementioned 65-70%.
Is anyone else experiencing decreased battery life since 2.3.6?
I'm on a Tmobile Nexus S, running stock 2.3.6 (no custom ROMs).

2.4.6 ? .... maybe 2.3.6 ... and yes, I also noticed a slight increase in power consuption after the upgrade. The stand-by is still great .. about 0.8 - 1% per hour.

Sorry, yes I meant 2.3.6.
Thanks for replying Ro_explorer. Is your increased power consumption significant? Seeing 65-70% when I'm used to seeing 80-85% as I get into my office, I find, is a large change. To be frank, the battery life of the Nexus S in general isn't so fantastic to begin with... this hit makes it worse.
Anyone else?

I used to get home with about 40-50% after a whole "normal day" (unplugged at 8AM, and getting back home at ~8PM) .. now (with the same average usage) I'm getting home with ~30-40% ... that why I said "slight increase" ...

Not your imagination, I too have noticed this. I hope the next update, will fix this - as I used to get pretty good battery life (even with over 250 apps).
When I recently updated to the 2.3.6, it caused a bug of continuous reboot (every 1-3 minutes), so I had to do a hard reset - now it works fine, but I only have added back about 15 apps - and the battery life sux!

Downgrade OS' it will be ok.

This is so weird. Why is the battery life worse?

onthecouchagain said:
Sorry, yes I meant 2.3.6.
Thanks for replying Ro_explorer. Is your increased power consumption significant? Seeing 65-70% when I'm used to seeing 80-85% as I get into my office, I find, is a large change. To be frank, the battery life of the Nexus S in general isn't so fantastic to begin with... this hit makes it worse.
Anyone else?
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Click to collapse
You want bad battery life? Try an Evo 4g with a Sense rom. I averaged about 6hrs using a 1500mAh battery, in stock form.
The nexus is pretty light on power consumption, if you ask me. I average 15hrs on the stock 2.3.7 rom/kernel combo, with stock battery.
Sent from my Nexus S 4G using XDA App

I'm on 2.3.6 and need to charge every two days. I text a lot and do light gaming. I'm typing this from my phone. Maybe you could drain the battery and wipe battery stats? I'm not even at 50% yet and I charged yesterday.
Sent from my Nexus S using Tapatalk

I also noticed that the battery last less time
I've been waiting to see if anybody else reporting this issue

i noticed a decent increase in battery life going to 2.3.7 and thought that previously the battery life had been fairly poor :\

I am non rooted, and get around 20 hrs on light to moderate use. Again. Stock, non rooted.

How do I recalibrate my battery? I wonder if it could be that...

There are many was to recalibrate. Some involve wiping batt stats, some plugging and unplugging phone several times after charge.
I have always found that using the battery almost all the way down, but not past 5%, and then full recharge conditions it very well.

Oh I've been here to solve the problem
"Why last 2 weeks my Nexus s drain battery so fast ? or I have to calibrate it"
Thank for your notice about update OS to 2.3.6.
I think that's a root cause for me too.
1. Could I rollback to 2.3.4 ,how?
2. Does battery calibration is useful for this case , how?( someone suggest to calibrate when flashing new rom )
Thank you very much..

i want to know who have some methods to do with this stuff

borrowedchief said:
There are many was to recalibrate. Some involve wiping batt stats, some plugging and unplugging phone several times after charge.
I have always found that using the battery almost all the way down, but not past 5%, and then full recharge conditions it very well.
Click to expand...
Click to collapse
Whenever switching roms, kernels, or batteries, i always perform the following :
1. Charge to a true 100% (Battery Monitor Widget will register +0 to +2 mA)
2. Wipe battery stats using recovery (Amon RA has this option for the Evo, not sure about cwm), Battery Monitor Widget, or a dedicated app.
3. Discharge battery to 0% with normal usage. When the phone shuts down, I pull and re-install the battery and power back up (it will shutdown again very quickly).
4. Recharge battery and be on my merry way.
Sent from my Nexus S 4G using XDA App

I found one workaround solution for this issue on
ww.google.com/support/forum/p/Google+Mobile/thread?tid=1684c50cea15282a&hl=en&fid=1684c50cea15282a0004af022e5ed212
Sproogle77 's solution
Problem solved. Using the OS Monitor app, I found that the main culprit was Google Services - the Contacts sync specifically. Even though I had this disabled (only Gmail was being allowed to sync) it was constantly working, apparently trying to fix a location. The message log showed that it was generating continuous debug messages, all about locations - around 10 of these every second.
I have solved the problem by disabling 'Use wireless networks' under the Locations & Security settings.'Use GPS satellites' is still running. This immediately dropped my CPU usage - which had been running around 30 to 40% even when otherwise idle, to around 10%. Google contacts sync is now using 0% of the CPU. The difference in battery life was pretty much immediate and is now back to what it was before - the change in the slope on the battery usage graph is remarkable!
This doesn't really seem like a solution to me, and I don't know whether other aspects of my functionality are being affected, but at least my phone is properly useable again.
I'm testing for 1 day and I think that's working for me.

onthecouchagain said:
This is so weird. Why is the battery life worse?
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Click to collapse
One reason is that the new version of the stock kernel removed a speed stepping, so it'll power to higher levels faster, thus using more battery.

rentaric said:
One reason is that the new version of the stock kernel removed a speed stepping, so it'll power to higher levels faster, thus using more battery.
Click to expand...
Click to collapse
That actually isn't the problem. I'm using netarchy's kernel and still get this problem.
My battery life dropped from 16 hours --> 6 hours. the slope on my battery usage life is horrible the system is also awake almost constantly even when I'm not touching it / getting no messages.
I will try the fix suggested on the google support forum and see if that does the trick. sloppy update.

Possible battery drain introduced in the February security patch?

So a lot of people and myself over on the Nexus 6P subreddit have been discussing about the possibility of some sort of battery drain with the arrival of the Feb patch. On any ROM/kernel combination (and even on stock at some point), my phone very easily reaches 4:45-5:00 of screen time throughout a day that is from 7am-10pm for me. Over the last month, it has progressively gotten worse, on some days reaching low levels with just 3:30 SoT. After using various ROMs, I decided to try out bone stock to see if I would get the same result (this was 3 days ago). And that has been the case... The phone barely reaches 4 hours of screen time.
Well you might suggest: "Disable services such as location and sync" or "What apps have you recently installed that could be causing drains?" And that's the thing. My usage patterns have not changed at all. I barely download new apps and always stick to using the same ones. Today my location was off for a very long time and I've still gotten the same battery. I've been keeping my eye on the awake bar on battery info, and the phone sleeps as it should, so I'm sure there aren't any rogue apps.

I am seeing this as well. I actually went back to stock to see if it was the ROM I was using. Seeing the same battery degradation on stock. Running MMB29Q with Feb security patch as you can see from screen shot. Wonder if Google is aware of this. Cannot be a coincidence.

Me 2

Haven't noticed this at all, I'm getting the exact same battery performance as I always have.

I haven't noticed any extra battery drain either.

I definitely noticed this myself.
I did a factory reset and it seems to have helped, but I've only tested it for one day since.

Heisenberg said:
Haven't noticed this at all, I'm getting the exact same battery performance as I always have.
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Click to collapse
I'm with you. Same battery as previous factory image.
Sent from my Nexus 6P using Tapatalk

I have bought this phone in the beginning of February and my battery experience is TERRIBLE. It drained 20% battery in 16h with 17 mins SOT. I'm extremely disappointed in this device. I tried Stock, chroma and Pure Nexus and even when 0 apps are installed my battery goes AWOL. Really this is a nightmare where I paid alot of money for this phone and it acts like a personal energy waste device.

VnnAmed said:
I have bought this phone in the beginning of February and my battery experience is TERRIBLE. It drained 20% battery in 16h with 17 mins SOT. I'm extremely disappointed in this device. I tried Stock, chroma and Pure Nexus and even when 0 apps are installed my battery goes AWOL. Really this is a nightmare where I paid alot of money for this phone and it acts like a personal energy waste device.
Click to expand...
Click to collapse
1.2%/hr drain isn't great, but not bad either depending on reception/installed-apps/notification/etc
I'm running 6.0.1 feb patch. Get about 0.6%/hr screenoff drain, but I'm mostly on good wifi connection. If running around town on LTE i'd get some where around 1% screen off drain.

I've noticed that ever since the Feb security patch, the battery has drained a little faster than usual also, with no change in usage behavior.... Can someone please notify google about this?

I have not noticed anything different.
Running stock with ElementalX kernel.

I've been noticing the same thing. I used to be able to go for 4+hrs of screen on. Now, 3.5 is normal. I am on PureNexus, but I've not changed anything in the last month, after the update.

I bought the phone on 28th February. 30 minutes after arrive at home, flashed Cyanogen, and draining about 1% each minute with screen on.
Yesterday I flashed PureNexus and now reaches 3.5 hours with screen on. Way better, but still terrible.

I've noticed the same increased battery drain. I've been investigating the issue for weeks and didn't know what caused the issue until hitting this thread.

The February update introduced the SystemUpdateService wakelock on my 6P. It kept the phone awake 95% of the time and I couldn't get rid of it. I updated via fastboot with the factory images at the time. I flashed back to the January build and the wakelock disappeared. Flashed the February update again and SystemUpdateService wakelock came right back.
I didn't try a clean install with the February factory images to see if it would fix it. Maybe it would have, maybe not. I decided to give Pure Nexus a try after I couldn't fix it. I'm considering doing a clean install once the March update is released.

Me 2
Same battery issues as described for me.

I am glad to see that I am not the only one having a problem all of a sudden. I am running stock, but was about to root and run a custom ROM after becoming frustrated with the suddenly increased battery drain. I used to drop only three or 4% overnight, but now it is about 20%, with Google App being a prime user of battery even without OK Google being activated. Doze does not seem to be working as it did before. I am going to try shutting off Wi-Fi and Bluetooth at night to see if that makes a difference, but it never seemed to matter before leaving those on. Also, I do not see a way to automatically turn off push mail service at night or on a specific schedule as I could do with previous phones.

I'm glad. I thought I was the only one experiencing this.
Sent from my Nexus 6P using Tapatalk

Interesting - I have noticed that the battery life has tanked on my 5X fairly recently (been using it for a few weeks - will try on the 6P next).
Presumed it was just a rogue app or something, although nothing seems to be causing excessive wake locks etc. It is hard to quantify though, so it could just be looking for a problem where there isn't one.
I'm doing a clean install on my Nexus 6P from the March security update factory images, should be able to see if the battery life I'm getting is similar to January as I have a fair idea of what percentage my phone was usually down to at the end of the day.

A clean install of 6.0.1 with Feb patch and only stock apps. It's been sitting on my bed since a full charge 5 days ago. Looks like the Feb patch is not having much of an impact on battery life.

Battery life on Android 7.0

Hi guys,
It's the first day of running Android 7.0, upgraded last night, off the charger at 10 AM. Now it's 2:40 in the evening and I have 28% left with 2h30m SOT till now, so I guess a ~3H SOT till the phone turns off. I find this pretty bad.
Are you experiencing the same problems? What's your first day SOT with N?

LOL!! give it time breh...... give your phone and kernel a few cycles to see how things go. Maybe report back on the weekend. That should be enough time for it to adjust to your usage

This helps me:
1. Flash stock recovery
2. Make a factory reset (save your files)
3. Setup your N6P
4. Enjoy

I am experiencing low battery life too. But that was the case on Marshmallow too until I installed the ElementalX kernel. It's an impressive kernel for sure, even when I installed it plain, without any customization of my own when it asks when installing it.
Looking to go back to elemental but only after giving Nougat's update and its kernel few more days to showcase its ability. Finger crossed!

Perhaps it's user/expectation error, OP. Give it time or do some maintenance wipes. I've been using the previews and battery life is very similar to MM, if not improved.
Sent from my Pixel C using XDA-Developers mobile app

I also experiencing battery issue here. previously when using MM, i got > 4 hours SOT. but after upgrading to 7.0, i only get about 3 hours SOT. when I see the battery settings, the Android System is consuming more battery than the screen. I never had experience like this in MM
do you guys also have the Android System consuming much battery?

I got 4 hours and 8 mins. SOT with battery remaining at 15%. This is with sync and high accuracy location switched on. I also played 1 hours and 15 mins of NBA Live during this period. That said this is using black pepper v2 profile on stock kernel.
So for me it's not bad, though a few more cycles would be ideal to give a concrete evaluation of battery life. Doze does seem to kick in a lot more now, and phone is really deep sleeping when on standby so I think the results are promising.

Nexus 6P Nougat shuts down immediately after hitting 15% battery

I did a search and could not find anything useful. I downgraded from beta to N 7.0 and despite better battery life, I have this really annoying experience with my phone. I have ticked the battery saver option on with low battery on, and as soon as the yellow bars appear to show 15% battery, it suddenly starts shut down process and then refuses to power on again until connected to charger.
That is cheating in my opinion, since I always assume I have 15% battery left.
Any solutions or thoughts as to why this happens?

If it's cutting out at 15% and you know it's not software it seems like it would be the battery. I deal with phone repairs on a daily basis and I see this a lot.

Same exact thing is happening it me. I thought it was a 7.1 bug, but it's just happening now and I've had 7.1 since day one and have gone below 15% many times.
Sent from my Nexus 6P using Tapatalk

Mine began doing it when I upgraded to 7.1 as well. It's a known issue and I don't know if there is a fix.
Here is the main thread where some "fixes" are posted - http://forum.xda-developers.com/nexus-6p/help/phone-dies-15-time-figure-issue-t3482597

Nougat battery life

After upgrading to Nougat (clan install, wipe, etc) my baterry is really worst. It is like 30-60 min less SoT than before and 60-90min less active phone, with same config, same apps, etc. Also, the phone is a lot less awake than before. After 1 year of waiting can't believe this...
How about the rest?

NahuelMS said:
After upgrading to Nougat (clan install, wipe, etc) my baterry is really worst. It is like 30-60 min less SoT than before and 60-90min less active phone, with same config, same apps, etc. Also, the phone is a lot less awake than before. After 1 year of waiting can't believe this...
How about the rest?
Click to expand...
Click to collapse
Dude you guys have to let the update settle in..you won't get accurate battery usage for at least 5 or 6 charge discharge cycles.

autosurgeon said:
Dude you guys have to let the update settle in..you won't get accurate battery usage for at least 5 or 6 charge discharge cycles.
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Click to collapse
Dude, hate this kind of things. Why you think i am dumb enougth to post this without letting the battery settle down? I did the upgrade two weeks ago and have at least 30-40 full charges-discharge cycles because i use the phone a lot and now have to charge it like 3 times a day. Also do the 0 to 100% calibration a lot of times and also use the normal charger too to compare. I use Gsam battery monitor to keep tracking the battery and the media values and keep my M.M. data stored to compare later. So, please, if you don't want to help me or post how is your battery life compare please don't make this kind of post thinking the other ones are dumb people or not understand how battery work on android.
Thanks, best regards.

It seems the radios are much less efficient in Nougat than Marshmallow when the signal is below average... is GSAM showing your radio with very high percentage of battery usage? Not much we can do about that, but some users have stated with poor signal the radios are using 30% of the battery and more (where in MM it was 5-10% when signal was poor). No fix yet and flashing MM radios doesn't seem to improve it, probably have to wait for an update. :/
If that doesn't explain it, try a cache wipe, then a factory reset... I am getting to a point I am recommending a factory reset for EVERYONE on this OTA, lots of weird little bugs that seem to be cleared up on a factory reset.

Impossible to believe but 7.0 is giving best battery life when compared to 6.0.

After updating to official nougat through ota moto x style (indian version) getting best battery performance. Getting around 4.5 to 5 hours on full cycle. Due to network error not able to post pictures.

acejavelin said:
It seems the radios are much less efficient in Nougat than Marshmallow when the signal is below average... is GSAM showing your radio with very high percentage of battery usage? Not much we can do about that, but some users have stated with poor signal the radios are using 30% of the battery and more (where in MM it was 5-10% when signal was poor). No fix yet and flashing MM radios doesn't seem to improve it, probably have to wait for an update. :/
If that doesn't explain it, try a cache wipe, then a factory reset... I am getting to a point I am recommending a factory reset for EVERYONE on this OTA, lots of weird little bugs that seem to be cleared up on a factory reset.
Click to expand...
Click to collapse
The most weird thing is that the % are the same as with M.M. so can figure out why it is drainning battery. Only a lot less time held awake from the kernell and a little bit more from screen. I tried wiping the cache like 10 times. Install and uninnstall google play services, also tried the play services beta to see if it is gettint better.
Also always do a factory reset after the install of an new OS to avoid problens, so it is a clean install. Another thing I notice is the unlinear behaviour of the battery. Maybe from 100 to 75 got 2 SoT screen time and from 75 to 10 got 1 hour.
Aniway I noticed what you are saying about the low signal drain. Last nigth i was in a place with almost no signal and the cellphone in standby mode drain like 40% in an hour.
For the others who has better battery i can't understand why i am getting less battery. I use it in the same way as marshmallow. Also i read other people having battery problems too. I will have to disable all moto features to see if i get an improvement.
Thanks to all!

Today i restart my phone. It was in 84% and after the reboot wen to 74%. Maybe the update ruinned my battery life? Really don't now what to do... I can try to change the battery but the phone is 9 month old... Anyone with a idea?
Edit: Further testing show me that everytime i reboot my phone i get a different % of battery. Also same usage get to really different battery results.

I'm getting ~2.25-2.5 hours of SOT. I've my 4G sim enabled for about 6-7 hours with mediocre signal strength. So not a good improvement over MM but that maybe because of 4G data. I need to check how it performs with only WiFi.

After Nougat update, I get about 15-20 minutes more SOT