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

[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
Click to expand...
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

Really bad battery life

My device has been completely stock running ART kitkat.
Battery life has been really bad the last few weeks. (Possibly due to 4.4.4?)
I have switched off location services, Google now, and only sync gmail.
I can only squeeze out around 2 hours and 30 minutes max compared to 4 hours 30 I was able to before. (Same settings, flight mode WiFi only)
Any one have any advice please? How can I monitor and see what's draining? I've tried a a few apps but I can't find anything.
Thank you.
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Get gsam or betterbatterystats to see where the wake locks are. What daily mail? It's eating a lot of your battery
Sent from my Nexus 5 using XDA Free mobile app

Thanks!
Its a news app.
I'm not sure how to analyse it?

olyloh6696 said:
Thanks!
Its a news app. View attachment 2845757
I'm not sure how to analyse it?
Click to expand...
Click to collapse
No offense but curious. You are a Recognized Contributor and doesn't know that?

olyloh6696 said:
Thanks!
Its a news app. View attachment 2845757
I'm not sure how to analyse it?
Click to expand...
Click to collapse
This might help http://forum.xda-developers.com/showthread.php?p=53453745
Sent from my Nexus 5 using XDA Free mobile app

sidnoit22 said:
No offense but curious. You are a Recognized Contributor and doesn't know that?
Click to expand...
Click to collapse
None taken.
I may be a recognised contributor, however in the last 18 months I've lost my interest in mobile technology, and hence I have little knowledge on mobile tech today.
I consider myself a "normal user" now. I just use my phone as it is as a regular user completely stock and I don't know these tech things anymore.
Any help is appreciated, any other info I can give? I'm rather incline not to factory reset my phone.

App sucker screen if this helps?
So daily mail is the cause?

It is the usage that drains your battery life. If fact daily mail online doesnt drain so much. I dont know, how much and how often you use your phone and that is what really matters.
What really drains batterie (and most people dont know this) is waking up your device often. When you wake up your device all cores goes to max frequency before turning down slowly. By 4 cores it drains a lot of energy. The second is the screen brightness. The brighter the screen, the more it drains. An than there are many other factors like signal strength and quality, apps...
So to sum it up, it is your usage behavior that influence your battery life. To compare I am on cm11 with matr1x kernel, do alot of surfing, chatting, listening to music and the average screen on time is 4 hours. You may try it out.

CCody said:
It is the usage that drains your battery life. If fact daily mail online doesnt drain so much. I dont know, how much and how often you use your phone and that is what really matters.
What really drains batterie (and most people dont know this) is waking up your device often. When you wake up your device all cores goes to max frequency before turning down slowly. By 4 cores it drains a lot of energy. The second is the screen brightness. The brighter the screen, the more it drains. An than there are many other factors like signal strength and quality, apps...
So to sum it up, it is your usage behavior that influence your battery life. To compare I am on cm11 with matr1x kernel, do alot of surfing, chatting, listening to music and the average screen on time is 4 hours. You may try it out.
Click to expand...
Click to collapse
Thanks mate, appreciated.
I forgot to post my brightness.
I usually have my phone on flight mode at home and WiFi signal a minimum of 3 bars. (Excuse the screenshot which is an exception)
I suppose with my phone I do always switch it on and off multiple times, however I haven't had this battery drainage problem in the past, it only occurred in the last few weeks and I have the same usage pattern. I suspect it was the 4.4.3/4.4.4 update because prior to that battery was fine.
Thanks for the suggestion of the ROM, however I'm planning to keep my device stock and I still haven't factory reseted it since day 1 (August 2013) and hope I do not need to.
Thanks all the same.
Open to more suggestions many thanks to everyone.

Install Greenify and hibernate Daily Mail Online. It's the one draining your battery I guess.
Greenify works without root, but if I remember correctly you need to hibernate apps manually.

Crazy wakelocks: please help

I'm noticing some incredibly high kernel wakelocks on my Note 4, which aren't present on my Note 2 (which rules out something on my network causing the problem ).
It's anyone having these? Any idea how the heck I'm suppose to get these lower? Wlan_wake in particular is firing off several dozen wakelocks per second.
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Sent from my SM-N910U

get an app called Amplify, aka LiOn Tamer, aka as far as i know dev could be changing the name of the app again as we speak. The regular version is usually good enough, although the donate version takes care of most of the other wakelocks...assuming you are rooted and have xposed installed, if not, good luck.
This app is probably one of the best apps to control wakelocks, the battery life increase is also considerable.
As of now I got 4h34 screen on time in 19h47 of battery life and have 37% left. I'm pretty sure if I wasn't working tomorrow and needed a full charge in the morning I could hit 6.5h of screen on time and an extra 7h battery life before I reach 0%. Stats that are not possible without this app

polish_pat said:
get an app called Amplify, aka LiOn Tamer, aka as far as i know dev could be changing the name of the app again as we speak. The regular version is usually good enough, although the donate version takes care of most of the other wakelocks...assuming you are rooted and have xposed installed, if not, good luck.
This app is probably one of the best apps to control wakelocks, the battery life increase is also considerable.
As of now I got 4h34 screen on time in 19h47 of battery life and have 37% left. I'm pretty sure if I wasn't working tomorrow and needed a full charge in the morning I could hit 6.5h of screen on time and an extra 7h battery life before I reach 0%. Stats that are not possible without this app
Click to expand...
Click to collapse
I've got Amplify, but it's not showing any wakelocks that would be close to those listed (in # of triggers). I am experimenting with a completely isolated wifi AP - so there's no way that devices on my network are pinging my phone. So far, wlan_wake and KeyEvents are still highish ,but there are some strange ones named "Event"followed by a number DASH number... I have no clue what the hell those are

EP2008 said:
I've got Amplify, but it's not showing any wakelocks that would be close to those listed (in # of triggers). I am experimenting with a completely isolated wifi AP - so there's no way that devices on my network are pinging my phone. So far, wlan_wake and KeyEvents are still highish ,but there are some strange ones named "Event"followed by a number DASH number... I have no clue what the hell those are
Click to expand...
Click to collapse
did you try greenify?? I'm sure its an app thats doing that, this wakelock was a known issue in 4.3

polish_pat said:
did you try greenify?? I'm sure its an app thats doing that, this wakelock was a known issue in 4.3
Click to expand...
Click to collapse
I am using Greenify - are you saying I should disable? These particular wakelocks have only come up in the past few days (maybe after the most recent firmware update) and I've been using Greenify since I got the phone, weeks ago.

EP2008 said:
I am using Greenify - are you saying I should disable? These particular wakelocks have only come up in the past few days (maybe after the most recent firmware update) and I've been using Greenify since I got the phone, weeks ago.
Click to expand...
Click to collapse
dont disable it, just make sure you update the app list on it. I also got a N4 on launch day and the update was there out of the box, i dont have such issues though. I'm pretty sure an app is causing this, just gotta know which one. It could be almost any app, check your per app battery usage and see if an app is draining abnormally your battery.
You haven't mentioned this anywhere, but is this affecting battery life?

polish_pat said:
dont disable it, just make sure you update the app list on it. I also got a N4 on launch day and the update was there out of the box, i dont have such issues though. I'm pretty sure an app is causing this, just gotta know which one. It could be almost any app, check your per app battery usage and see if an app is draining abnormally your battery.
You haven't mentioned this anywhere, but is this affecting battery life?
Click to expand...
Click to collapse
I've been getting poor screen on time, but these wakeups seen abnormally high (half MILLION triggers in less than 24 hours???).
I'm going to look at packets on my network to see if any are pinging my device for no good reason.

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