Database Users

Great battery life!

Info:
Codename droid (latest 2/16/2012 i think)
Matrix kernel 17 (plan to update to 17.5 later) cfs
200min 1200max
default gov and scheduler
default voltages
display was at about 20% (above 50% is just blinding with voodoo)
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Off the changer at about 7am then listen to music for awhile to drown out some boring teachers! then some games at lunch. A few texts here and there and calls for about 10 minutes. Its now 12:27 and I still have 67% battery!
I gotta put it on the charger before I go to bed so I can start fresh tomorrow.

Battery life varies GREATY with usage; a good indicator of usage would be your on-screen time.
What is your on-screen time?
Also we have another similar thread here:
http://forum.xda-developers.com/showthread.php?t=1517524
Why did you create a new one ...?

There is another thread like this one with real usage battery life...
That being said, I agree that this combo has awesome battery life. I'm using it myself. I froze a few pre-installed apps, and turned auto sync off, and my phone seriously dropped 1% overnight with wifi on. That's pretty amazing. I don't have deep idol on, stock voltages, and 200/1200 with interactiveX.

rocket999 said:
There is another thread like this one with real usage battery life...
That being said, I agree that this combo has awesome battery life. I'm using it myself. I froze a few pre-installed apps, and turned auto sync off, and my phone seriously dropped 1% overnight with wifi on. That's pretty amazing. I don't have deep idol on, stock voltages, and 200/1200 with interactiveX.
Click to expand...
Click to collapse
Could you tell us what apps you froze?
Does it really help saving more power?
Thanks.
Sent from my iPad using Tapatalk

glennkaonang said:
Could you tell us what apps you froze?
Does it really help saving more power?
Thanks.
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
I don't have my phone on me right now, so I'll post what I froze in a minute. Freezing apps stops them from using up RAM and CPU time. In turn that saves battery. It doesn't save as much as turning off the auto sync though.

my phone was 1 day and 15 hrs without a charger but this rom have bugs like home buttom not working screen close (need to be like old tv) etc etc....

I turned off auto sync and backup but my battery still drains pretty fast even when on 2G all the time.
I've frozen Maps and Talk but that doesn't seem to help.
I noticed that my phone awake time is high enough when the screen off although it can go to deep sleep normally.
I also noticed that Google Services has high % of battery use.
Any idea of what I'm doing wrong?
I'm sure that I have turned off auto sync.
But this Google Services still drains my battery.
Sent from my iPad using Tapatalk

rocket999 said:
There is another thread like this one with real usage battery life...
That being said, I agree that this combo has awesome battery life. I'm using it myself. I froze a few pre-installed apps, and turned auto sync off, and my phone seriously dropped 1% overnight with wifi on. That's pretty amazing. I don't have deep idol on, stock voltages, and 200/1200 with interactiveX.
Click to expand...
Click to collapse
How exactly do you "freeze" an app?

glennkaonang said:
I turned off auto sync and backup but my battery still drains pretty fast even when on 2G all the time.
I've frozen Maps and Talk but that doesn't seem to help.
I noticed that my phone awake time is high enough when the screen off although it can go to deep sleep normally.
I also noticed that Google Services has high % of battery use.
Any idea of what I'm doing wrong?
I'm sure that I have turned off auto sync.
But this Google Services still drains my battery.
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
What phone do you have? I have a 4g, so it's on CDMA. I know that the auto sync takes up more power on CDMA networks then it does on GSM. Do you have GPS on? What about your NFC? Those both take up battery.
How exactly do you "freeze" an app?
Click to expand...
Click to collapse
There's an app on the market called titanium backup. You can "freeze" apps so they aren't running and don't show up anywhere. It stops them from running in the background.

I have an i9023, the GSM one.
Yes I've turned off almost all that my phone doesn't even deserve a title of smartphone.
Clean install of ROM is done already.
Sent from my iPad using Tapatalk

You have to freeze apps like Google + Google wallet ( stuff you never use) just make sure the system does not need it or you'll run into issues. Also use a task killer but disable auto kill and only kill when u need too.
Sent from my Nexus S 4g using xda premium

Task killers are a waste of space. When will people learn how to exit apps properly and know that the android system handles its memory just fine on its own?
Sent from my Nexus S 4G using xda premium

airkernel battery life!!!
Want to show you the rusults of testing AirKernel 3.2 (very smooth on 200-800 MHz and CFQ+SmartAssV2).

novic_dev said:
Want to show you the rusults of testing AirKernel 3.2 (very smooth on 200-800 MHz and CFQ+SmartAssV2).
Click to expand...
Click to collapse
Which rom are you doing this with?
Sent from my Nexus S using Tapatalk

glennkaonang said:
I have an i9023, the GSM one.
Yes I've turned off almost all that my phone doesn't even deserve a title of smartphone.
Clean install of ROM is done already.
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
Describe clean install?
Do you did format boot and format system?
If that not help..
Flash stock rom..use it for a few days..
Then flash back custom rom
Sent from my GT-I9100 using xda premium

Nexus 7 Battery Life

Hi! I recently got a Nexus 7 and I am somewhat disappointed in the battery life. I am only getting around 3 hrs of battery life and is draining quickly while idle. The battery is also draining while being used while connected to my pc. I am using Jellybro rom along with Trinity Alpha 64. Can anyone recommend the best Rom/Kernel combination for battery life ? I read that Trinity is great for battery life so I'm doubting the Rom (however it works great on my Galaxy Nexus). As I dont always use the same things on my tablet I cant really test the different roms myself.
Thanks
Sent from my Galaxy Nexus using Tapatalk 2

I'm getting great battery life on my stock N7 :|
I tried it the other day, used it all day and it died after around 8-9hrs. Was tethering via bluetooth, brightness set to auto, and either played games, used FB messenger, or read Wall St Journal frequently throughout the day.
Sync and location enabled.
Oh and the N7 will probably discharge faster than your PC can charge it. Typical USB ports on a PC only output .5A of power. Chargers meant for tablets usually provide about 2A of power. So thats another issue.
Might I suggest running the N7 till it shuts itself off due to no battery, then letting it sit and charge overnight till its 100%?
Sent from my Nexus 7 using xda app-developers app

Thanks for the reply Can you please tell me the Screen on time ? Since then I switched to Paranoid Android so I'll how it goes but maybe the stock rom has a better battery life ?
Thanks
Sent from my Galaxy Nexus using Tapatalk 2

Last night I got 19.5 hours on battery with 7.5 hours screen time on paranoid android. I'd say its safe to say that...
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Hmm sadly I didnt take a screenshot when I did that 8-9hr run.
I'll unplug my tablet for today though and by tonight maybe I'll have some interesting results for ya.
Sent from my Nexus 7 using xda app-developers app

If its enough to make you mad then its prolly not right.
To say your doing in wrong would be a far shot but your tablet is definitely doing it wrong..lol. I was just saying the other night to my girl that I was super happy with the battery because it lasts all day for me. From 7am in the morning till 12 at night. Of course im not using it every waking moment but I do check it/use it as much as I would have normally used my phone. During work I am on wifi till about 430 and then from 430-8/9 while im in class im tethering using it almost the whole time, then when im home for the rest of the night I will be on wifi. The things I do vary from webbrowsing (reddit, xda, etc) emailing attachments, listening to google music and GPS/texting. (yes I use tablet talk which is why I rarely use my phone anymore except to setup tethering)
If you are having any issues with your battery I recommend to get a battery app to reset the stats and try again. If not return to stock then try that method again.. then if NOT return.

revamper said:
Last night I got 19.5 hours on battery with 7.5 hours screen time on paranoid android. I'd say its safe to say that...
Click to expand...
Click to collapse
Haha Thanks for the replies I'll see how it goes with Paranoid Android
Sent from my Galaxy Nexus using Tapatalk 2

modstorm said:
Haha Thanks for the replies I'll see how it goes with Paranoid Android
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Just turn off your google account auto-sync and your battery life should increase dramatically. I use the power widget to toggle sync.

Okay here are some screenshots of my battery life... Not sure if its uploading properly though since im doing this through the app.....
EDIT: Looks like it didnt work... But basically I had about 20.5hrs of total battery time. Screen on for a total of 5.5hrs. Bluetooth on the entire time, WiFi on for about 6 hours.
Sent from my Nexus 7 using xda app-developers app

Nippero said:
I'm getting great battery life on my stock N7 :|
Oh and the N7 will probably discharge faster than your PC can charge it. Typical USB ports on a PC only output .5A of power. Chargers meant for tablets usually provide about 2A of power. So thats another issue.
Click to expand...
Click to collapse
My N7 discharges faster than the google provided AC mains charger can recharge it. That seems pretty pathetic to me. How is it for others?

How much is Google Services effecting your battery?

Why is Google Services taking up so much of my battery use? The CPU total is only 38s and the keep awake time is 3m 16s.
By contrast, HD Widgets has used 5m 3s of CPU time and 23m 35s of keep awake, but has a far less percentage of battery life.
Any ideas?
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kgeissler said:
Why is Google Services taking up so much of my battery use? The CPU total is only 38s and the keep awake time is 3m 16s.
By contrast, HD Widgets has used 5m 3s of CPU time and 23m 35s of keep awake, but has a far less percentage of battery life.
Any ideas?
Click to expand...
Click to collapse
i am having this issue too.... google services always takes top spot on usage for me too... no idea how to solve this?

Are you rooted? If so, what ROM are you using? Any custom kernels?
If not, which OTA are you on?
I'm using Paranoid Android and don't have this problem.

Stryder5 said:
Are you rooted? If so, what ROM are you using? Any custom kernels?
If not, which OTA are you on?
I'm using Paranoid Android and don't have this problem.
Click to expand...
Click to collapse
I am running the stock rom, 4.2.1, rooted.

I've never even seen that process on my battery usage weird
Sent from my Nexus 4 using Tapatalk 2

Rooted and stock ROM and stock kernel.
Sent from my Nexus 4 using xda app-developers app

Running the cm10 nightlies and haven't noticed this.
Sent from my Nexus 4 using xda premium

Never seen that on mine at all, I'm 100%stock.
Sent from my Nexus 4 using xda app-developers app

How often do you actually use your phone? Judging by the list of apps in your screen shot and minimal screen on time, im assuming your phone is in standby more often than not. If that's the case, then the Google services are using more battery by comparison simply because you're not doing anything else that's using battery. That list shows usage by comparison. If you're concerned about it, open the Currents app and go into settings and disable notifications, also disable unnecessary notifications and updates for your Google accounts (books, magazines, photo upload, etc.) From settings > Google. Could also be Google Now.
Download gsam battery for more info on what's using battery.
And don't forget, the way that screen works is that it's saying Google services used 60% of the 17% that has been depleted, which equals about 9% in over 4 hours.
Sent from my HTC One S using xda app-developers app

I have done some tests over the last couple of days and it seems like the issue (if it really is an issue) relates to Tasker and using location by cell/network towers to activate/deactive tasks. I have turned these tasks off and programmed NFC tags to take its place for now.
No real battery gain by NOT using these tasks that use cell/network loction to be honest so it does not seem like google services is draining our battery enough to notice a difference.

After i disabled google now and google location services i no longer see "Google Services" show up in battery use. Previously it was just destorying my battery but now all is well :good:

ragmanchu said:
I have done some tests over the last couple of days and it seems like the issue (if it really is an issue) relates to Tasker and using location by cell/network towers to activate/deactive tasks. I have turned these tasks off and programmed NFC tags to take its place for now.
No real battery gain by NOT using these tasks that use cell/network loction to be honest so it does not seem like google services is draining our battery enough to notice a difference.
Click to expand...
Click to collapse
i noticed the same, uninstalled tasker and no longer have 'google services' showing in the batt stats

ragmanchu said:
I have done some tests over the last couple of days and it seems like the issue (if it really is an issue) relates to Tasker and using location by cell/network towers to activate/deactive tasks. I have turned these tasks off and programmed NFC tags to take its place for now.
No real battery gain by NOT using these tasks that use cell/network loction to be honest so it does not seem like google services is draining our battery enough to notice a difference.
Click to expand...
Click to collapse
I came to the same conclusion you did regarding tasker and cell near. I implemented this solution: http://tasker.wikidot.com/yanawa
which minimizes the location checks and so far I think it's faring a lot better. I'm going to play around with your NFC idea though.

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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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.

Bad battery life on Nexus 4

Hi!
I recently purchased a used Nexus 4 in very good condition.
However I was having problems with the battery not lasting very long. So I replaced it with one from a reseller that sells original spares (called "lgspares", I can't post links.).
Battery life is still bad. My battery usually lasts about 12-13 hours and is therefore empty in the afternoon or early evening.
This is quite annoying.
I am running cm-13.0-20160429-SNAPSHOT-ZNH0EAO2YJ-mako without Google Apps.
I run the following apps that (possibly) sync in the background:
* DavDroid to sync to a CalDav server, runs every 4 hours.
* K9 Mail to sync to an IMAP server, turned off IMAP push, runs every 30 minutes.
* FOSS Telegram, which does not use GCM. However I turned off "Background Connection" in the settings.
I used to have smaller intervals set for DavDroid and K9 and recently increased them to have a better battery life. However this did not have a big impact.
I ran battery historian for two usual days:
* Day 1:
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* Day 2:
Questions:
*I can see that the battery level decreases quite a lot while the screen is on. Does that simply mean that I have a bad battery?
*Did I miss something in the battery historian graph?
Thanks for your help!

How many hours of screen on time do you get? The Nexus 4 (or really any before the 6p) didn't have great battery life...
Sent from my Nexus 6P using Tapatalk

I see, that's unfortunate.
According to battery historian it was 2h7m for day 1 and 3h15 for day 2.
Is that average (for a N4)?

rwkser said:
Hi!
I recently purchased a used Nexus 4 in very good condition.
However I was having problems with the battery not lasting very long. So I replaced it with one from a reseller that sells original spares (called "lgspares", I can't post links.).
Battery life is still bad.
Thanks for your help!
Click to expand...
Click to collapse
My N4 was rooted, and I used a kernel profile to help conserve the battery. I was also not running the screen @ full brightness. I usually managed to get through the day on one charge.
Sent from my LG-D851 using Tapatalk

SofaSpud said:
My N4 was rooted, and I used a kernel profile to help conserve the battery. I was also not running the screen @ full brightness. I usually managed to get through the day on one charge.
Sent from my LG-D851 using Tapatalk
Click to expand...
Click to collapse
I will look up ways to adapt the "kernel profile"/cpu governor/etc. .
Actually the battery life has gotten better suddenly. I think the only adjustment I did was disabling vibration feedback while typing.
I will watch the behavior during the next days and possibly report back
Thanks for your input so far!

Turn off all sounds in other sounds in settings menu and check out l speed app on goggle play I use a n4 still and check out force doze app also it is on google play and kernel auditor is another good app
Sent from my Nexus 4 using Tapatalk

[email protected] said:
Turn off all sounds in other sounds in settings menu and check out l speed app on goggle play I use a n4 still and check out force doze app also it is on google play and kernel auditor is another good app
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
I will check these out!
I have disabled developers options and uninstalled Wakelock Detector.
The phone charged until 9am this morning and just now (10 hours later) it is at 70%.
Could it be that Wakelock Detector itself was draining the battery or that the developer options are to blame?
I am baffled.

You may need to restart the phone to show true battery level if that doesn't work download ampere app from Google play and make sure you are not using a very slow charger Normal charger would be a measuring of 600ma in my experience
also check settings battery see what is consuming most battery life

You likely need a new battery. These phones are 3yrs old. I had to replace mine every 1.5 years.
Sent from my Nexus 5X using XDA-Developers Legacy app