Database Users

[Q] Battery problems

Hi all! I have bought Nexus 7 32g wifi (SN: CAOK) 9 days ago. I noticed an unregular battery usage... I made about 3,5h with display on and I've read on the web that I should do at least 6h with display on. It 'a manufacturing defect?
I attach some screens of battery stats
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look your opinions, thank you!

Looks about right to me. You have to factor in I that you also have about 1 day of standby time and you were playing some games.
Try tinkering with your sync settings and WiFi settings and you may get a little more battery.
Sent from my Nexus 7 using xda app-developers app

candyeve said:
Looks about right to me. You have to factor in I that you also have about 1 day of standby time and you were playing some games.
Try tinkering with your sync settings and WiFi settings and you may get a little more battery.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
As some people to get 2 days of standby and 6h of display on in same charge? I've seen it on many screens on xda and other forums maybe they are using a custom roms? I actually mount stock 4.2.1.
What do you mean with wi fi settings?
Thanks

I have had awful battery life on 4.2.1. Its meant to give you 6-7 hours of screen time but I've had no more than 2. Really annoying and I'm sure I didn't get this on 4.1.2

So you have this problem too
I think so too It's a 4.2.1 issue, but I wouldn't install any custom room cause if it's an hw problem I can't back N7 with warranty...
Sent from my Nexus 7 using xda app-developers app

Wi-Fi settings...
Make sure Wi-Fi gets turned off when threes screen is off
My 4.2.1 gets better battery than you but I've also made sure I've read all the " battery" threads and tweaked my tablet the way others have recommended.
Sent from my Nexus 7 using xda app-developers app

candyeve said:
Wi-Fi settings...
Make sure Wi-Fi gets turned off when threes screen is off
My 4.2.1 gets better battery than you but I've also made sure I've read all the " battery" threads and tweaked my tablet the way others have recommended.
Sent from my Nexus 7 using xda app-developers app
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Click to collapse
Ok, but this goes against my need to receive push notifications. So I can say that those who make six hours of screen on is because they has not the wifi always on?

MaNFr3 said:
Ok, but this goes against my need to receive push notifications. So I can say that those who make six hours of screen on is because they has not the wifi always on?
Click to expand...
Click to collapse
I get around 10hrs of battery life (total actual usage)... with 2 days on standby
but i usually disable sync, only sync when needed. (make use of those widgets)
Avoid fancy widget, use stock widget if possible.
In battery settings, wifi off when it sleeps.
If you are using google currents, you have to disable auto sync, as it use up battery real fast.
And avoid push notification...
Push is the real killer, it requires wifi to be constantly on.

comscier said:
I get around 10hrs of battery life (total actual usage)... with 2 days on standby
but i usually disable sync, only sync when needed. (make use of those widgets)
Avoid fancy widget, use stock widget if possible.
In battery settings, wifi off when it sleeps.
If you are using google currents, you have to disable auto sync, as it use up battery real fast.
And avoid push notification...
Push is the real killer, it requires wifi to be constantly on.
Click to expand...
Click to collapse
Have already turn off all, now last chance I'll disable Facebook notifications... let's see if any changes... Otherwise I will send it for repair

MaNFr3 said:
Have already turn off all, now last chance I'll disable Facebook notifications... let's see if any changes... Otherwise I will send it for repair
Click to expand...
Click to collapse
Since I realized that the Facebook app sucked out my battery like a leech, I'm using the mobile site. Helped me a lot.
Sent from my Galaxy Nexus using xda premium

Damn I have "auto refresh position" on gmaps enabled, now i disable this feature and I restart looking at battery life!
Another tweaks to improve battery life?
Sent from my Nexus 7 using xda app-developers app

4h of display on and 23h in total now it's 25% is far from avarage?
Sent from my Nexus 7 using xda app-developers app

[Q] Alright, what's wrong with my new battery?

FYI, I've just done a factory reset + restore from my google account, so we'll see if anything changes but I doubt it!
My battery has just been running down like nothing. It went down to 0% and turned off so I plugged it in. Got to 75% when it was time to go out to dinner with friends and by the end of it - with barely using it - it was down to about 40%.
So I charged it back up to 100% and by the time I got to bed it was back down to 45% or so. 7 hours later, I wake up to my alarm but also on-screen alert about power. It had dropped to 1%!
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What on earth is going on? This phone is literally unusable as the battery just drains like no other...

Had the same problem I sent mine back, for a replacement.
Sent from my HTC One S using Tapatalk 2

You probably have a rogue app destroying battery by using up background processes.. If anything you should download better battery stats from XDA and try and diagnose the problem before doing an RMA for bad battery..
Sent from my Nexus 4 using Tapatalk 2

One other thing I have noticed is that the signal indicator seems to fairly regularly switch between 3G and H... both at work and at home I notice it. Could the switching of signal also cause battery? Why would it switch so frequently? Am in downtown Toronto with Rogers...

Kaitlyn2004 said:
One other thing I have noticed is that the signal indicator seems to fairly regularly switch between 3G and H... both at work and at home I notice it. Could the switching of signal also cause battery? Why would it switch so frequently? Am in downtown Toronto with Rogers...
Click to expand...
Click to collapse
That is why, I'm sure.. Its always looking for signal and uses a lot of battery ..
Sent from my Nexus 4

noodles2224 said:
That is why, I'm sure.. Its always looking for signal and uses a lot of battery ..
Sent from my Nexus 4
Click to expand...
Click to collapse
But.. why would this be? Downtown Toronto, and on Rogers... signal should be great most of the time?

Kaitlyn2004 said:
One other thing I have noticed is that the signal indicator seems to fairly regularly switch between 3G and H... both at work and at home I notice it. Could the switching of signal also cause battery? Why would it switch so frequently? Am in downtown Toronto with Rogers...
Click to expand...
Click to collapse
The signal going from 3G to H is a normal occurrence. It sits on 3G when data is not being transferred, and when data is actively transferring it switches to H. It saves battery and does not mean the phone is constantly looking for signal.
Sent from my Nexus 4 using Tapatalk 2

joshnichols189 said:
The signal going from 3G to H is a normal occurrence. It sits on 3G when data is not being transferred, and when data is actively transferring it switches to H. It saves battery and does not mean the phone is constantly looking for signal.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
I cant confirm that for Germany. On my phone its always in HSDPA except when signal is weak...

B3rt0 said:
I cant confirm that for Germany. On my phone its always in HSDPA except when signal is weak...
Click to expand...
Click to collapse
Are you running a custom ROM and theme? Some will just say H and H+ and not 3G and H. Also, it could have to do with fast dormancy which T-Mobile US uses.
Sent from my Nexus 4 using Tapatalk 2

joshnichols189 said:
Are you running a custom ROM and theme? Some will just say H and H+ and not 3G and H. Also, it could have to do with fast dormancy which T-Mobile US uses.
Sent from my Nexus 4 using Tapatalk 2
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Click to collapse
I am on Paranoid Android. Not sure if I mix it up with my HTC Sensation but I might recall to have seen the 3G symbol already. But could be mistaken ...

B3rt0 said:
I am on Paranoid Android. Not sure if I mix it up with my HTC Sensation but I might recall to have seen the 3G symbol already. But could be mistaken ...
Click to expand...
Click to collapse
Well like I said it depends on ROM and theme and I don't believe Germany uses fast dormancy which could be the reason as well.
Sent from my Nexus 4 using Tapatalk 2

In the UK its the same on. Orange, 02, Vodafone & 3. Will sit on 3g until data is used. Then jumps up to H when data is sent or received. This behaviour is normal
Sent from my HTC One X using xda app-developers app

Okay, here are some more screenshots from yesterday I believe:
https://www.dropbox.com/sh/ulkihrci3o5262n/8f89eQM5Y-
In that last screenshot - I lost 29% and MOST of it was while I was sleeping! I only casually used the phone for MAYBE up to 1hr...

Kaitlyn2004 said:
FYI, I've just done a factory reset + restore from my google account, so we'll see if anything changes but I doubt it!
My battery has just been running down like nothing. It went down to 0% and turned off so I plugged it in. Got to 75% when it was time to go out to dinner with friends and by the end of it - with barely using it - it was down to about 40%.
So I charged it back up to 100% and by the time I got to bed it was back down to 45% or so. 7 hours later, I wake up to my alarm but also on-screen alert about power. It had dropped to 1%!
What on earth is going on? This phone is literally unusable as the battery just drains like no other...
Click to expand...
Click to collapse
Same thing there, i just got my replacement today, and let me tell u, i really love my replacement... Much much better battery
Sent from my Nexus 4 using Tapatalk 2

WiFi eating battery on Note 3

Hey everyone,
My mom just got a new Note 3 (yay!), and I have been quite busy exploring all its features. One thing that is nagging me, however is that both the stock browser and chrome are using up a great deal of battery. Wifi is eating 1% Every 1-2 minutes and while using the browsers this is amplified to a percent every 30 secs!
Please help me.
Sent from my SM-N9005 using xda app-developers app

Wifi has always been a battery vampire.
Do you have brightness set to 100%?
How far are you from the router? A bad signal uses more power.
Is anything syncing in the background?
Send From My Samsung Galaxy Note 3 N9005 Using Tapatalk

ShadowLea said:
Wifi has always been a battery vampire.
Do you have brightness set to 100%?
How far are you from the router? A bad signal uses more power.
Is anything syncing in the background?
Send From My Samsung Galaxy Note 3 N9005 Using Tapatalk
Click to expand...
Click to collapse
Brightness is set to Auto -5
Router is like 2 steps away
Nope, nothing is syncing, I have it turned off

I just don't understand why they don't use stronger batteries in the first place. I wouldn't mind carry along an additional let's say 50g in exchange for a longer battery life ...
Sent from my SM-N900 using Tapatalk 4

yongyut said:
I just don't understand why they use stronger batteries in the first place. I wouldn't mind carry along an additional let's say 50g in exchange for a longer battery life ...
Sent from my SM-N900 using Tapatalk 4
Click to expand...
Click to collapse
At stand by, the Note 3 hardly uses 1-2% battery every 8 hours or so, but when it comes to calling (core function of the phone!) and wifi+browsers the battery suffers greatly. I haven't tested cellular data yet because of weak signals near my house. Should I let it drop to 0% and charge to 100% or get a new battery? Really disappointed with the battery.

As a general rule you should avoid full discharge/recharge cycles (except for things such as recalibration) as this in the long run shortens the batt's lifetime even more. So it's best to recharge it more often and keep it somewhere between 10-90%.
Sent from my SM-N900 using Tapatalk 4

keytsox said:
Hey everyone,
My mom just got a new Note 3 (yay!), and I have been quite busy exploring all its features. One thing that is nagging me, however is that both the stock browser and chrome are using up a great deal of battery. Wifi is eating 1% Every 1-2 minutes and while using the browsers this is amplified to a percent every 30 secs!
Please help me.
Sent from my SM-N9005 using xda app-developers app
Click to expand...
Click to collapse
Yep, that happens. A battery depletes as it should. No mystery there. X)
Sent from my SM-N900T using XDA Premium 4 mobile app

UPDATE
New update guys:
I left my phone with WiFi on for half an hour and it ate 3% battery from 50% to 47% which includes a phone call. And this time the phone was a bit further away from the router. So, I guess it's not the WiFi that's sucking the juice but the browsers.
Any fix for this?

I too had this same problem with my device i dont know what happened all of a sudden it got everthing allright now but it stuks alot with the ditalix lwp installed
Sent from my SM-N900 using XDA Premium 4 mobile app

Here is my battery usage I'm using SM-N900
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Sent from my SM-N900

Fixed
Hey,
Well the issue fixed itself. I now have WiFi running with Smart Screen, Air Gestures, Sync, Screen Rotating and using the web browser to do some surfing and battery hasn't dropped a percent since the last few minutes. It got fixed right after another (it's 3rd) charge and it's working now.
Guess I just needed to charge it a few times for it to work. If anyone else is having issues and have charged it only once or twice, try charging it again. Mine was at 47% when I charged.
Requesting a mod to lock this.

Android system eating battery

My battery is declining faster than expected and when I looked up my stats, it showed that Android system was eating up more battery than the screen!
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I took my better battery stats as well. I don't have location services on, but I am using Google Now. Is that the reason for this battery drain?
Sent from my SM-G900V using Tapatalk

Dude that's still pretty damn good...why are you complaining?
Sent from my SM-G900V using Tapatalk

Yeah, just last night I had 15 hours on battery, over 5 hours of screen on and still 20% battery left. Don't know why OP os complaining.
Sent from my SM-G900V using XDA Premium 4 mobile app

Yeah the phone's battery is great. I always have gps, wifi, and Bluetooth on with pretty good results. I can only imagine how much longer it would last with some of those off.
Sent from my SM-G900V using Tapatalk

I'm not complaining, but just curious why Android system is such a battery drain. It would seem that the screen would be the biggest drain.
Sent from my SM-G900V using Tapatalk

ireknole said:
I'm not complaining, but just curious why Android system is such a battery drain. It would seem that the screen would be the biggest drain.
Sent from my SM-G900V using Tapatalk
Click to expand...
Click to collapse
Because it is what makes everything in the phone work....

kprice8 said:
Because it is what makes everything in the phone work....
Click to expand...
Click to collapse
So it should be higher in usage than the screen? I always thought it was a bad thing if Android system was the first thing on the list.
Okay then, never mind. I am happy with the battery life, just want to make sure I'm getting the best battery this phone can offer.
Sent from my SM-G900V using Tapatalk

Just for your reference.
Sent from my SM-G900V on xda Premium app with no root

Generally though if Android OS is higher than your screen on time then you have a wakelock issue. I know without root it'll be a little harder to fix the issue at hand though.
I'd at least look into WiFi settings and turn Always Allow Scanning to Off. Then maybe look at your GPS settings and try the battery friendly mode or GPS only mode. I also don't allow Google to use your WiFi for better location results. There have been similar bugs reported with 4.4 here is some info and afew people trying to squash the issue on a Nexus http://www.reddit.com/r/Nexus5/comments/1y96zm/battery_drain_caused_by_android_os_possible/
You boys need root!
I'm not sure if any of the wake lock apps out can show you what's causing this without root but maybe look into it.
Sent from my SCH-I545 using Tapatalk
---------- Post added at 09:35 AM ---------- Previous post was at 09:27 AM ----------
Also you can try changing the "keep WiFi on during sleep" to either off or only when plugged in. That may help. Just suggestions that's all. Maybe something here will help somebody.
Sent from my SCH-I545 using Tapatalk

You also have to remember how much Samsung based apps are running in the background at all times. Figure the pedometer in S-Health, any kind of airview, or S-This S-That when the phone is on. That is probably part of the cause. I do say i see it too but i wouldnt say my battery is exactly bad because of it.

Mistertac said:
Generally though if Android OS is higher than your screen on time then you have a wakelock issue. I know without root it'll be a little harder to fix the issue at hand though.
I'd at least look into WiFi settings and turn Always Allow Scanning to Off. Then maybe look at your GPS settings and try the battery friendly mode or GPS only mode. I also don't allow Google to use your WiFi for better location results. There have been similar bugs reported with 4.4 here is some info and afew people trying to squash the issue on a Nexus http://www.reddit.com/r/Nexus5/comments/1y96zm/battery_drain_caused_by_android_os_possible/
You boys need root!
I'm not sure if any of the wake lock apps out can show you what's causing this without root but maybe look into it.
Sent from my SCH-I545 using Tapatalk
---------- Post added at 09:35 AM ---------- Previous post was at 09:27 AM ----------
Also you can try changing the "keep WiFi on during sleep" to either off or only when plugged in. That may help. Just suggestions that's all. Maybe something here will help somebody.
Sent from my SCH-I545 using Tapatalk
Click to expand...
Click to collapse
Thank you for those tips! I didn't know about that wifi one. I immediately unchecked always scanning. I keep my wifi on to make sure I use wifi, if available, but I don't need it always scanning. I hesitated on the gps switch, but I figured I'll try it on power saver and see what happens.
Edit:
After turning off wifi scanning, that's what I got. That looks better to me. Although my usage time is lower than my previous screenshot, I started my day at 90% (forgot to charge last night, and that's as high as I could get it before leaving for work), and I'm using my phone more today.
Sent from my SM-G900V using Tapatalk

There's another thread on this. It's happening to a lot of people, including me.

Are there any reasons to hold off on taking the latest update?

Just in terms of eventual root, or something. It's not going to make much of a difference, or anything?
I'm on 6.O.1 - G930PVPU1APB5
Update G930PVPU2APD3
Its just that I notice it includes "security improvements," and that after updating, "returning to the previous version will be impossible. "

If your battery life is good right now, I wouldn't take the update. Sprint ****ed up the battery life on the GS7E with the pd3 update. I wish I had never updated my phone. I went from 7 to 8 hrs SOT down to 4 to 5 hrs after the update. It is caused by a GPS bug.
Sent from my SM-G925P using Tapatalk

optimummind said:
If your battery life is good right now, I wouldn't take the update. Sprint ****ed up the battery life on the GS7E with the pd3 update. I wish I had never updated my phone. I went from 7 to 8 hrs SOT down to 4 to 5 hrs after the update. It is caused by a GPS bug.
Sent from my SM-G925P using Tapatalk
Click to expand...
Click to collapse
Where did you hear about the GPS bug? My battery life got horrible as well and seems to be better with location services off but not as good as when the phone was new
Sent from my SM-G935P using Tapatalk

hads said:
Where did you hear about the GPS bug? My battery life got horrible as well and seems to be better with location services off but not as good as when the phone was new
Sent from my SM-G935P using Tapatalk
Click to expand...
Click to collapse
My own research. Used GSam monitor & wakelock detector to track down the culprit service.
Sent from my SM-G935P using Tapatalk

If you use hotspot then don't take the new update!

mrnamster said:
If you use hotspot then don't take the new update!
Click to expand...
Click to collapse
new update fix the hotspot issue?

It breaks the apn hotspot trick

I have my apn modified and the update did not break it. I meant the 'restart' method
Sent from my SM-G930P using XDA-Developers mobile app

The wifi calling does work better which was one fix on the update
Sent from my SM-T330NU using XDA-Developers mobile app

Is there a way to disable the software update? It keeps popping up on my notification bar.

kreizyidiot said:
Is there a way to disable the software update? It keeps popping up on my notification bar.
Click to expand...
Click to collapse
I did with this. No root required
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And disable these

I noticed with the newest update notification tones are significantly louder while using headphones and are unaffected by the sound level settings.
Edit: Also, notifications on lock screen auto-clearing upon turning phone screen on.
Sent from my SM-G930P using XDA-Developers mobile app

kreizyidiot said:
Is there a way to disable the software update? It keeps popping up on my notification bar.
Click to expand...
Click to collapse
I wish. I accidentally took mine a few days ago. Was walking through LA at night, pulled my phone out to check directions, and it was 10% deep into it. I was so pissed, and it was like an hour before I could use my phone again.

Thanks. This works, well worth the buck.
LeftyGR said:
I did with this. No root required
And disable these
Click to expand...
Click to collapse
---------- Post added at 08:48 PM ---------- Previous post was at 08:47 PM ----------
bb2si said:
Edit: Also, notifications on lock screen auto-clearing upon turning phone screen on.
Sent from my SM-G930P using XDA-Developers mobile app
Click to expand...
Click to collapse
Can this be a bad thing? What if you turn the screen on to check time or something, and then the notifications disappears without you even glancing at it?

kreizyidiot said:
Is there a way to disable the software update? It keeps popping up on my notification bar.
Click to expand...
Click to collapse
Block Google Play services notifications.