Nexus7 can't deep sleep help - Nexus 7 (2013) Q&A

I'm stumped
Here's my bbs screenshot…. I'm on 4.4.2 with latest elemX kernel
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In 9hrs standby with no use I lost a whopping 27% doing nothing
100%awake ?? Google apps? Preventing deep sleep I think
Via my NeXus™ 7 FHD on Tapatalk⁴ Pro

cobyman7035 said:
I'm stumped
Here's my bbs screenshot…. I'm on 4.4.2 with latest elemX kernel
In 9hrs standby with no use I lost a whopping 27% doing nothing
100%awake ?? Google apps? Preventing deep sleep I think
Via my NeXus™ 7 FHD on Tapatalk⁴ Pro
Click to expand...
Click to collapse
Try Restoring everything back to stock.
Also, try flashing a stable rom like cm11 WITHOUT Gapps.

aniket0317 said:
Try Restoring everything back to stock.
Also, try flashing a stable rom like cm11 WITHOUT Gapps.
Click to expand...
Click to collapse
ya i ended flashing back to and older version of elementX kernel...v2.10 i think and my tablet is deep sleeping again...i think i lost around 5% in 12 hours...not the best but it could be much worse
my nexus 5 on franco kernel only loses like 2% in 12 hours of nothing

cobyman7035 said:
ya i ended flashing back to and older version of elementX kernel...v2.10 i think and my tablet is deep sleeping again...i think i lost around 5% in 12 hours...not the best but it could be much worse
my nexus 5 on franco kernel only loses like 2% in 12 hours of nothing
Click to expand...
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This device is very bad on battery while idling.
Some kernels are worse than others. That's a syncing issue though, you may be able to fix that by forcing a sync.

Even my ipad 1st gen lol sleeps great I lose ZERO % in 24hrs
Via my NeXus 5 on Tapatalk⁴

cobyman7035 said:
Even my ipad 1st gen lol sleeps great I lose ZERO % in 24hrs
Via my NeXus 5 on Tapatalk⁴
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really ? my friend's ipad has a terrible battery. It released 4 years ago

Have you solved your problem? Let us know

Leviazz said:
Have you solved your problem? Let us know
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yes. no more wake locks,,, my nexus 7 FHD sleeps good now..i think it was the kernel maybe, i dunno but when i relashed back to kernel elementalX 2.10 its all good now

im using Cm 11 M10. I've lost ~20% after 10 hours. what should i do ? i think my tab cant deep sleep

Major culprits: GPS and location services, Google Play Services pinging the servers, an app running all the time, and keeping wifi on during sleep.
While you narrow things down, try this app, Deep Sleep Battery Saver. Its most aggressive mode shuts down practically everything. Thanks to this, my Motorola phone went from losing 50% over 12 hours to only 4%.
https://play.google.com/store/apps/details?id=com.rootuninstaller.batrsaver

Related

[Q] Battery !!

this my HOX Battery screenshot, is it good enough ?
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Aimen7 said:
this my HOX Battery screenshot, is it good enough ?
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yeah it is
Can you show us your Screen-On-Time?
compe said:
Can you show us your Screen-On-Time?
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well, it should result 9Hrs 3mins
it is the​CyanogenMod 10
Screen time?
faiz02 said:
Screen time?
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wrote that above....
matt95 said:
well, it should result 9Hrs 3mins
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Unfortunately it won't be that much. Maybe someone can explain how it gets measured. Look at mine for example.
Sent from my HTC One X using xda app-developers app
matt95 said:
well, it should result 9Hrs 3mins
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Click to collapse
You wish, I wish, we all wish..
eyosen said:
You wish, I wish, we all wish..
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Click to collapse
Most people get from 2-3 hours screen time and around 18 hours battery.
Sent from my HTC One X using xda app-developers app
How are you all getting so much battery life out of it?
Mine doesn't even last a day, with like 1 hour screen time.
Any tip appreciated, thanks.
Im also losing battery fast...even when im not using it, kept it in deep sleep, it still losing battery about 1% in 5 minute...is any kernel that good with battery life...there is something that eating the power...
me too is losing the battery fast, even after updated to ARHD 17.1 (JB), it sucks a lot where it could drop to 40% within four hours and minimal screen on usage. Really make me wonder if it is hardware problem because have flashed different ROM but still yield the same result.
hit it with a thunder...that should do the trick
I think the best battery life Rom it is venom viperx...after 24 hours with 3 g and data on I have 2%...the screen was on 2h13 m with auto brightness and calls 1h55m...some mails,facebook,xda...I think i'm not gonna try jb...this rom it's perfect and verry customizable:thumbup::beer:
Sent from my HTC One X using xda premium
I also had major problems with battery life on my HOX. My solution so far is to dissable synchronization of Google Contacts, This gives me a gain of at least 50% generally.
I've attempted to dissable services one by one, and Contacts appears to be the culprit.
Try this and let us know..
Edit:
Im on stock JB european rom
Been watching a movie on MXplayer and battery is down to 68% from 100%, screen on time is 1 hour 50 minutes. Which suggests that I can watch movies for 4 hours+.
Don't have the screenshots to prove it now that i've started charging my phone.
Oh yeah, matt95 measured it by the screen using 45% out of those hours, which equals 9.3 hours. Doubt that it's right though.

Battery life issue?

Hi,
So my phone battery was pretty off today and I checked my battery usage. This is the result.
Any ideas? It doesn't look like anything out of the ordinary on running apps...
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Sent from my Galaxy Nexus using Tapatalk 2
are you running stock?
are you rooted?
If you have recently flashed a new ROM, its common for the battery % to get thrown off. There are battery calibration apps on the market to fix it.
If you are running stock, then charge it for a full 8 hours minimum. Run it all the way dead, til it turns off. Then charge it a full 8 hours again.
rudeguy said:
are you running stock?
are you rooted?
If you have recently flashed a new ROM, its common for the battery % to get thrown off. There are battery calibration apps on the market to fix it.
If you are running stock, then charge it for a full 8 hours minimum. Run it all the way dead, til it turns off. Then charge it a full 8 hours again.
Click to expand...
Click to collapse
Negative ghostrider. The battery calibration apps are 100℅ snake oil. They do nothing that unplugging the phone after a charge does not do. Also, wiping battery starts after flashing a rom is pointless since it not only has nothing at all to do with indication, but that is also a clean slate when flashed. The old advice to do this was based upon folds not understanding how both the operating system and the battery's fuel gauge operate.
Also, I wouldn't advise doing the second one too often as it shortens the life of the battery. Discharge to the point of shutdown is unhealthy for it and full charge/discharge cycles shorten its serviceable lifespan.
OP- It would seem that your phone is awake significantly more than it should be if you weren't using it all that much. Google Services should account for less battery use than it is, and idle should account for more. A screenshot of battery use with more details would prover to be very useful. Also, you can use the app BetterBatteryStats to get some insight as to what may or may not be misbehaving.
Sent from my Nexus 7 using Tapatalk HD
I've flashed CM 10.1, using the 28th of December nightly.
Hoping it was just the nightly that caused it, but it's gotten worse throughout the day.
Aerolith514 said:
I've flashed CM 10.1, using the 28th of December nightly.
Hoping it was just the nightly that caused it, but it's gotten worse throughout the day.
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My best guess is that it may be location services draining your battery.
Sent from my Nexus 7 using Tapatalk HD
najaboy said:
My best guess is that it may be location services draining your battery.
Sent from my Nexus 7 using Tapatalk HD
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Just disabled it in maps. Is it possible that it turned itself on somehow? I haven't had this problem until today.
Also, would there be a reason why the stock messaging app font size is almost double the size? I ended up installing the 'alex' font to make it a bit smaller, but it's still big in comparison to what it used to be.

Battery is ****ed up.

I was always unsatisfied with my battery life, but now it's gone too far!
1. No matter how long I charge it, at the very second I unplug it it goes down to 99%.
2. It doesn't even go down correctly, one moment it's 65% and the other it's 58%. Always.
3. It drains soooooo fast even though I do nothing with it!!!!
Here are some pictures
1. This is 17 minutes after unplugging it, all I did was to put music on [earphones] and check if my girlfriend was online on Whatsapp.
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2. That's after a minute and a half, 2% less, doing nothing but listening to music with my screen off!
3. One minute later..
4. Sixteen minutes later, phone is idle and untouched [not even music, I started my shift]
5. Again, idle.
It lasts 3 hours tops!!!! What the hell do I do.
MaorSwan said:
I was always unsatisfied with my battery life, but now it's gone too far!
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This app already told you the culprit! Your getting wakelocks so an app you installed is keeping the device awake all the time. The rest is for you to figure out partner . Use the search function on XDA and you will find all the info you need.
Tw1tchy said:
This app already told you the culprit! Your getting wakelocks so an app you installed is keeping the device awake all the time. The rest is for you to figure out partner . Use the search function on XDA and you will find all the info you need.
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Ok might be but to the level where the phone doesn't last 3 hours? That's not cool. It should be lasting more even with heavy using.
MaorSwan said:
Ok might be but to the level where the phone doesn't last 3 hours? That's not cool. It should be lasting more even with heavy using.
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yeah you're right, it should last more anyway! maybe it's the rom.. what rom are you using? or maybe the battery failed. it happened to me with another phone, basically i was in the seaside with about 38°C the phone was boiling hot, the battery was fully charged but in about 20 mins it was at 5% without even using it then it died. since then that battery never worked again and i had to buy a new one. do you remember if you had a similar situation or if your phone overheated for any other reason (maybe while charging or near a heat source)?
fireblade said:
yeah you're right, it should last more anyway! maybe it's the rom.. what rom are you using? or maybe the battery failed. it happened to me with another phone, basically i was in the seaside with about 38°C the phone was boiling hot, the battery was fully charged but in about 20 mins it was at 5% without even using it then it died. since then that battery never worked again and i had to buy a new one. do you remember if you had a similar situation or if your phone overheated for any other reason (maybe while charging or near a heat source)?
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I use Android Revolution HD.
It got heated a few times but not too hot, and besides, I read that it happens to everyone..

Is there any explanation for this?

I shut my nexus 7 off last night when it had around 86% to conserve battery. I turned it back on this morning to see that it dropped nearly 10% overnight while OFF. How is this even possible?
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Sent from my Nexus 7 using Tapatalk 4
Could it just be from booting it up? Seems drastic but possible
B1GPUN said:
Could it just be from booting it up? Seems drastic but possible
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That's a real stretch. I doubt anybody would see a drop of 10% just by booting up or restarting the tablet.
Sent from the dark side of the moon
This happens to my HD2 all the time, remaining battery got changed after restart. Here is what I have discovered:
The shown battery percentage is almost always different after a restart, the difference is bigger if I use the phone heavily prior to the restart. Being a 2009 phone, almost any task is not easy for HD2.
I think it's because of how the OS reports the remaining battery percentage. I am guessing that OS get an idea of percentage from the voltage prior to booting, then decrement based on measured realtime consumption rate. But because the load on the battery is changing constantly and other factors, this lead to accumulated inaccuracy over time.
Think about this: if you car reports total fuel consumption of a trip based on accumulated measured realtime MPG, will that be as accurate as directly measure the gas tank before and after?
But a car can measure the remain capacity of gas tank at any time, why not the phone just measure the voltage of battery at any time to determine the realtime remaining capacity? I guess it's because when a battery is under load, it's voltage drops.
I did not google so all of this is just my guess and may just be a laugh.
Sent from my Nexus 7 using Tapatalk 4
pacman1891 said:
This happens to my HD2 all the time, remaining battery got changed after restart.
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That makes sense. Kinda sucks though.
Sent from my Nexus 7 using Tapatalk 4
What about the fact that GPS still broadcasts on a powered down device..like when the police say they can track a device that's turned off and the only REAL way to turn off ANY phone fully is to pull the battery...just a thought...
sent from my i577/1.5oc/running one hella LiquidSmooth
InkSlinger420 said:
What about the fact that GPS still broadcasts on a powered down device..like when the police say they can track a device that's turned off and the only REAL way to turn off ANY phone fully is to pull the battery...just a thought...
sent from my i577/1.5oc/running one hella LiquidSmooth
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Can they track a powered off phone. Wow that's scary
Sent from my Nexus 7 (2013)
Muikkuman said:
Can they track a powered off phone. Wow that's scary
Sent from my Nexus 7 (2013)
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When it's powered off its not completely shut down..
https://ssd.eff.org/wire/protect/cell-tracking
sent from my i577/1.5oc/running one hella LiquidSmooth
InkSlinger420 said:
When it's powered off its not completely shut down..
https://ssd.eff.org/wire/protect/cell-tracking
sent from my i577/1.5oc/running one hella LiquidSmooth
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The governments are like crazy when it comes to know everything about everyone.
Sent from my Nexus 7 (2013)
Muikkuman said:
The governments are like crazy when it comes to know everything about everyone.
Sent from my Nexus 7 (2013)
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That is correct...all anyone can do is try to protect against it..
sent from my i577/1.5oc/running one hella LiquidSmooth

Too fast battery drain

Hello,
I have my Nexus 5x since 2016 and I change the battery 3 months ago. Despite this, all days I have to charge the phone before the end of the day. In settings, I see that the screen is use approximatively 2 hours before shutting down. So that's not enough ! Do you have an idea about this issue ? I repeat that my battery is a new one...
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Thanks.
Guin0me said:
Hello,
I have my Nexus 5x since 2016 and I change the battery 3 months ago. Despite this, all days I have to charge the phone before the end of the day. In settings, I see that the screen is use approximatively 2 hours before shutting down. So that's not enough ! Do you have an idea about this issue ? I repeat that my battery is a new one...
Thanks.
Click to expand...
Click to collapse
It does not have to be battery related, it could be a software or hardware issue as well.
It is possible that some app keeps the phone awake.
One possible solution to that is to use an app ( I use GSam Battery Monitor Pro) to find out what is draining the battery.
If that does not give a clear answer then you could factory reset the phone and see if that improves the situation.
If that also doesn't help then you could have a hardware issue. It happens on some phones, I have a (spare) Nexus 5X here that also drains the battery while sitting idle.
I just use it for experiments and keep it on the charger all day
what SoT were u getting when u first changed the battery?
considering normal SoT time for n5x is around 3-4 hours, plus (im guessing) cheaper 3rd party battery, these numbers wouldnt surprise me.
also, we know nothing about what apps you have installed or what android you're using.
Hello,
I installed a new 2700 mAh battery like the original. I don't us many apps just have social medias, web browsing and youtube... I confirm : today shutting down at 5 PM, less than 2 hours of SoT
Guin0me said:
Hello,
I installed a new 2700 mAh battery like the original. I don't us many apps just have social medias, web browsing and youtube... I confirm : today shutting down at 5 PM, less than 2 hours of SoT
Click to expand...
Click to collapse
I'm not sure if it's specific to lineage os, but if you scroll down on the battery settings page, it may show the battery use % for each app at the bottom. If that's there, try using your device as normal for a day, then check that when it gets down to 5% or so and see what's eating all your battery.

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