Database Users

Battery 6-8hrs on NAND even standby

Was running NexusHD2-Gingerbread_V2.3_NAND_(Android-2.3.2) for last two months.. in standby I wouldn't get more than six hours really. Drove me nuts. I've just upgraded to NexusHD2-Gingerbread_V2.6_NAND_(Android-2.3.3)_update . Is there anything I have to do to get better battery life?
Some app that'll turn off wifi? (i have no wifi at work but would like it on at home, any suggestions?)
Should I be upgrading the SD card to some other type?
I never used battery monitoring tools until today. I've installed 'current widget' and it shows 4-6ma of usage when sleeping.
Battery E.T.A. app shows 10hrs of life .. is this normal?
I'm almost at the point of selling this phone because of the insanely short battery life..

no it isn't normal...with 4mA drain it must have to keep at least 2 days in standby...buy a new battery

Ravi Shanghavi said:
Was running NexusHD2-Gingerbread_V2.3_NAND_(Android-2.3.2) for last two months.. in standby I wouldn't get more than six hours really. Drove me nuts. I've just upgraded to NexusHD2-Gingerbread_V2.6_NAND_(Android-2.3.3)_update . Is there anything I have to do to get better battery life?
Some app that'll turn off wifi? (i have no wifi at work but would like it on at home, any suggestions?)
Should I be upgrading the SD card to some other type?
I never used battery monitoring tools until today. I've installed 'current widget' and it shows 4-6ma of usage when sleeping.
Battery E.T.A. app shows 10hrs of life .. is this normal?
I'm almost at the point of selling this phone because of the insanely short battery life..
Click to expand...
Click to collapse
Your current widget shows that the battery should last really long. With 4-6maH, u should drain battery at an approx rate of 1% per hour. But since your battery doesnt last that long even after that, seems your battery is too old and is going to die soon.
I will suggest you to flash the stock win 6.5 rom, see the battery drain, if it lasts for 10hrs or so, go and get and new battery.

kundanjuit said:
Your current widget shows that the battery should last really long. With 4-6maH, u should drain battery at an approx rate of 1% per hour. But since your battery doesnt last that long even after that, seems your battery is too old and is going to die soon.
I will suggest you to flash the stock win 6.5 rom, see the battery drain, if it lasts for 10hrs or so, go and get and new battery.
Click to expand...
Click to collapse
Ok, I'll see how it performs for next two days. Then try a different battery. Odd thing is. I have two batteries, neither seemed to last any longer than the other.
I checked this one is a bb81100 1350mAh/3.7v.
Any recommended battery for this phone? Ebay safe?

Ravi Shanghavi said:
Ok, I'll see how it performs for next two days. Then try a different battery. Odd thing is. I have two batteries, neither seemed to last any longer than the other.
I checked this one is a bb81100 1350mAh/3.7v.
Any recommended battery for this phone? Ebay safe?
Click to expand...
Click to collapse
Hey
Try enabling the Log file & Log applications in current widget settings, then check the log after a few hours to see if, or how often, your mA spikes above 300-400mA (in standby), then try to figure if any apps you have installed are causing this spikes/ drain.
its a bit of work, but it has helped me in the past identify a 'problem' app

There might be a chance that some other app is eating up your battery.... enable app logs in current widget and check the log if any app has high battery usage...
Sent from my HTC HD2 using XDA App

Ok, this is quite surprising. I've gotten 13hrs and it says 40% battery left..
I've enabled logging as recommended. But these logs aren't exactly fun to look at. I don't understand why they wouldn't give you an option to pull the core android apps out of the logging.. or some sorta filter tool. ugh
the one thing I uninstalled was the antivirus program that was on my phone. Well along with the firmware update. I can deal with 13hrs of battery.. it was the six hours or 7-8hrs that was annoying as all heck. So if this really does last another 5-10hrs for a total of 20+hrs I'll be super stoked. I barely use my phone.. no games. nothing. It just sits on standby for 3-5calls a day.. and perhaps 20emails/rss feed checks.

Hi,
Kind of a noob question, but how do you enable Log file & Log applications?
I'm running the same ROM and getting 10 hours on a full charge, I used to get much more on the previous Froyo NAND ROM I was running.
In standby, sometimes it gets as low as 3mA however sometimes it spikes as high as 100-250 mA while in standby.
I'm guessing its an app or widget that is causing this (although I pretty much have the same ones as I was using in the previous ROM)

goatboy6 said:
Hi,
Kind of a noob question, but how do you enable Log file & Log applications?
I'm running the same ROM and getting 10 hours on a full charge, I used to get much more on the previous Froyo NAND ROM I was running.
In standby, sometimes it gets as low as 3mA however sometimes it spikes as high as 100-250 mA while in standby.
I'm guessing its an app or widget that is causing this (although I pretty much have the same ones as I was using in the previous ROM)
Click to expand...
Click to collapse
Open Current Widget settings...Tick d boxes beside "Log file" & "Log Applications"...Set ur update intervals (i usually use 300secs= 5 mins)...Let ur phone sit in standby for about 2 hrs then re-open current widget...Tap "View Log" to view the logs with d default or ur favorite viewer.

Deleted..sorry

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I prefer Battery Monitor Widget instead of Current Widget. Hard to explain the differences but you'll know when you try it.
At 4-6mA standby your phone should go for more than 2 days.
Edit: Add screenshot. Even says 3 days.

Crazy Android OS CPU usage

I am getting crazy CPU usage from Android OS, which is currently sitting at 52% battery usage. The CPU time of Android OS is between 20 and 30 minutes per hour! I have tried freezing many apps, I have tried task killers, rebooting etc. I have WKE7 firmware.

android os does use more than the rest, unsure why, but somehow the battery ife is still pretty good
http://goo.gl/cyd1T
KE7 (stock kernel) , full sync on google stuff + 1 email on push + auto brightness + about 1H of display on time on this, 1d20min and 68% left.
sent 3-4 sms and did a bit of various stuff since yesterday.
Seen worse lol

I would be very happy with that kind of batterylife. Sadly, my phone loses about 35% battery while I'm sleeping. With medium usage, I would usually reach 12 hours of battery.

i rate my battery life to smth like "amazing" xD

bilboa1 said:
i rate my battery life to smth like "amazing" xD
Click to expand...
Click to collapse
Yes for me battery life on sgs2 is also very nice - I'm comparing to sgs and it is about 20% better. My heavy usage today was 5 hours of screen on with wifi, some gps, 2h of gaming, skype running for about 3h, and battery run for total 9h. Also I use 2 push email accounts and sync is on. I think thats really good. And typically when I sleep in 8h battery is drained for about 8% with all email and google syncs active. So this is also quite good. All that on KE7. Most of samsung bloatware frozen.
Sent from my GT-I9100 using XDA App

Been trying to keep away from these battery threads, but noticed today that I've gone from android system 12% to 30% and I've no idea why.
Still on KE2, and am probably a "light user" - black wallpaper, brightness 20%, screen timeout 2 minutes, some phonecalls, lots of SMS, music - lots of Poweramp - shown a few photos, occasional wifi, GPS ca. 30 minutes per day, don't sync, don't use my carrier's dataplan, no e-mail as yet, and no Facebook/Twitter/games/Social hub/accuweather etc ever - in fact they were uninstalled on day 1.
Got 36 hours from my last charge, am now on 79% after 16 hours. Still happy with it, but no idea what has caused this spike.... Will keep an eye on it.
My $0.02 worth.

I am really starting to wonder why some people have amazing batterylife, while others are having terrible battery life. I would be very happy with 18 hours with 4 hours of screen usage, but instead I am barely scratching 12, today has been even worse. 10 hours with 3 hours screen usage...

So far mine is 2hr 15 mins screen on time, mostly browsing on 3G, 13 hours on battery, and have 29% remaining. Its OK, but I wouldn't describe it as amazing. Roll on 2.3.4

the thing is on android battery life largely depend on apps and setup anyway

Yeh, I know. But I feel like I have optimized my setup as much as I can. No autosynching, email check every 2 hours, facebook, twitter and RSS updates ever 4 hours. No GPS, automatic screen brightness, wifi sleep on. No widgets pulling real time info.

mine has the stock weather widget and animated background - also wifi always on (that prolly actually helps ..)
also i used some gps,played short videos, youtube, recorded some vids and took a few pics (you can see i used it more heavily today in the graph)
im supposing a lot of this goes as android system (bug?) cuz its certainly intensive and isnt in the list (not even lower)
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Get rid of the auto screen brightness. I find brightness of 10% makes a huge difference. This samsung screen might look great but in fact it's practically useless as it drinks power

with ke7 as u can see auto brightness doesn't seem an issue for me anymore
i like it because i don't need to set the brightness in sunlight when it's auto hehe

What is your CPU time on Android OS vs. total battery time? Right now my phone has been on for 2 hours and 14 minutes, and CPU time in Android OS is 43 minutes!

If you've read through the majority of these threads, what's weird is that some of you that have uninstalled and/or frozen specific apps are getting worse battery times than those of us that are bone stock and have everything whirring in the background. As an example I use Wi-Fi a lot and also Kies Air and connect to a Blu-ray player using Wi-Fi Direct. The Wi-Fi Sharing app never appears in my running apps after I turn Wi-Fi off. Yet some of you with tweaks that don't use Wi-Fi have it randomly appearing and eating up CPU time.
I've kept up with this thread and other battery threads and for every "ah-ha!" moment there's a post following it showing worsening or no improvement. Somewhere in one of the three battery threads there were some tweets from Google acknowledging the problem in running 2.3.3. with dual-core processors. I think other than for the mad scientist fun factor we're just beating a dead horse and 2.3.4. is going to have to be our salvation. There's not even any assurance that a cooked ROM sans all the Samsung tweaks would work any better if the issue really is a core-OS problem.
Back to our ongoing debate...

[Test] Battery Draining

Ok, I've been thinking about this for a while now so I'm going to make a test to decide if I really need a battery saver. I'm making this test for myself purely but I thought someone might wanted to see the results as well so here we go.
The gear:
Samsung Galaxy S2, non-rooted
2000 mah Samsung battery
The competitors
Phone on its own
JuiceDefender Ultimate
GreenPower Free
The settings
Prefer Wifi over data
Connect every 30 min to sync
No night settings (to be fair against the others)
Screen brightness: Auto
I know the battery savers are made to save battery when not using your phone so the screen will be locked the phone only used for a small amount of time between chargings.
The phone is unplugged at 100% and I will continue down to 30% before charging again. I will only be testing each one once, as of now at least.
We'll see how it goes over the next days so feel free to ask questions and such.

Many people I know with an S2 use battery saving apps but i really see no point in them, when we used to compare our stock phones running the same stock ROM there was minimal battery difference. Haptic feedback will be off or on? That makes a big difference.
You should put in a custom ROM to see how much better it is compared to stock.
i look forward to seeing the results of this test though

If I got it correctly haptic feedback is phone vibration on touch, right? That's off at least, never liked it. I'd like to put a custom ROM but I don't want to root the phone, yet.. Maybe in a few months or a year...
I will be updating this as we go along. At the moment we are at 96% with 3 hours of sleep time and only a few minutes of screen time.

Ermm, can I ask does task killer drain your battery? Sorry if I ask the wrong question.

darkmage17 said:
Ermm, can I ask does task killer drain your battery? Sorry if I ask the wrong question.
Click to expand...
Click to collapse
task killer will drain battery if the programs you closed restarts, use advance task killer and ignore those that do,you may need it for those apps that didnt close properly
im interested in your trial, juice defender service was failing to run on my s2, it ended up eating my battery restarting the service.
im looking to save power as i lose 15% over night with flight mode while i hear people lose 1,2%

Yes Android is a bit different than computer OS. To start an app drains more battery than just pushing the "back"-button and let it be in stand by so don't use task killers.
Yea I have had trouble some times with the battery saver draining quite a lot over the night but usually it has been because I had a mail as a widget with push-notification so the battery saver wouldn't disable internet but almost push all my other accounts as well. That was my solution at least. We'll see how this goes.
4h in 93% battery
15 min scrren time

A little update. You see where we are.
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And does anyone know what can have caused this? This is a picture from a few days ago. It has happened maybe 10 times over the last 2 months. Simply the phone gets hot and the only way to unlock the screen is to remove the battery, refit it and then start it. And then it shows this massive drain.

Okay we got 1 day 13 hours down to 30% with 30 min of screen time. Next up is the Juice Defender Ultimate with night settings off.

An update for you all. As you can see JuiceDefender has already passed the "vanilla" time.

I had an odd problem. Sometime during night, the battery suddelny decided to drain at much faster rate and it took it only 6 hours or so to drain from 75% to 15%. I checked with BetterBatteryStats but there seems to be no app that has kept it awake. Anyway, I can't continue with this test spimply because I don't have time for reruns.
What I can say in previous experience:
Vanilla
Great that as soon as a message comes in you get notified immediately.
Unfortunately that's because wifi or data is kept on all the time, draining battery.
JuiceDefender
Usually gives my phone 3-4 days of battery.
It does take some time (up to 15 sec or so) when you unlock the screen to connect and that can be annoying if you are in a hurry.
When I have night settings on to set phone in no vibration, no sound but also have different night setting time for weekends the phone vibrates once at midnight between weekdays and what JuiceDefender recognizes as weekend.
Sometimes it doesn't feel like the apps are updating even though settings are set to allow "dumb apps" to update as well as plenty of time to do so.
GreenPower
I have only had time to use it for a few days and it is only the free version. I will probably buy the premium soon.
It has a better UI than JuiceDefender though not so many settings. I'm not really sure if I need those other settings.
Best thing, it connects instantly to data when I unlock the phone so I can get on to the web or viber or such to see messages directly.
If anyone wants to continue this thread you may do so but I won't make more test as for the moment. Bottom line is that the data turning off when phone's locked really do help with battery life.

Battery Life Help! BatteryStats LogCat Help Please!

Guys, I am getting terrible battery life on the newest BajaRom. I was getting decent battery life but somehow everything changed. I want to note that I cannot access the Media Battery Drain Fix in the BajaROM settings as it crashes EVERYTIME i open it. I have tried everything to install something that will fix media battery drain but I am unsure if this is what is really causing my battery drain. Please any help would greatly be appreciated!
Installed on STOCK slot
SYNC, Bluetooth: OFF
Powersaving/Smart Network: ON
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Nobody?

Wakelock Detector and Greenify... are ur best friends on the Note 3.
Turnoff wifi,bluetooth,gps,etc when not in use. Set CPU to on demand. I always have power saver on unless I want to run a game... doesn't seem to effect anything else.
There are a ton of tips for Note 3 battery life...just search here...
I also use LUX for screen brightness, that made a big difference also. Change you wallpapers to darker colors... mine are some sort of black background...
I can make through the day with reasonable usage on Hyperdrive RLS8 and still have battery left...
Haven't tried BajaROM yet...

dasdman said:
Wakelock Detector and Greenify... are ur best friends on the Note 3.
Turnoff wifi,bluetooth,gps,etc when not in use. Set CPU to on demand. I always have power saver on unless I want to run a game... doesn't seem to effect anything else.
There are a ton of tips for Note 3 battery life...just search here...
I also use LUX for screen brightness, that made a big difference also. Change you wallpapers to darker colors... mine are some sort of black background...
I can make through the day with reasonable usage on Hyperdrive RLS8 and still have battery left...
Haven't tried BajaROM yet...
Click to expand...
Click to collapse
Thank you for your response. I have greenify'd most of my daily apps and I use wake lock detector and still cant find out the culprit here. It says that my SCREEN is taking up 30% of my battery life after just 2 hours unplugged and minimal use and I'm down to 82%. Can my phone just be inherently defective????
This DOESNT feel right. I NEVER had any complaints of battery with my NOTE 2

Sex

badboyg200 said:
Guys, I am getting terrible battery life on the newest BajaRom. I was getting decent battery life but somehow everything changed. I want to note that I cannot access the Media Battery Drain Fix in the BajaROM settings as it crashes EVERYTIME i open it. I have tried everything to install something that will fix media battery drain but I am unsure if this is what is really causing my battery drain. Please any help would greatly be appreciated!
Installed on STOCK slot
SYNC, Bluetooth: OFF
Powersaving/Smart Network: ON
Click to expand...
Click to collapse
Check your data usage. I had the similar situation, saw nothing in the battery usage area....but then checked data usage. I had over 2 Gigs of data usage from EMAIL in only 2 weeks! I had been using the std email app...and get maybe 10 emails a day. Obviously something goofy going on in the sync. Yet battery usage showed next to nothing for the sync process or email app.
I removed my accounts from the email package, froze the email package and installed AquaMail and my battery usage cut by at least half....my data use flatlined.
Obviously it takes power to use the radio for a Gig a week of data....but that does NOT seem to show in battery usage.
so check your data usage...see if email is way out in front. That may be your problem.
Sent from my Note 3 via Tapatalk

badboyg200 said:
Thank you for your response. I have greenify'd most of my daily apps and I use wake lock detector and still cant find out the culprit here. It says that my SCREEN is taking up 30% of my battery life after just 2 hours unplugged and minimal use and I'm down to 82%. Can my phone just be inherently defective????
This DOESNT feel right. I NEVER had any complaints of battery with my NOTE 2
Click to expand...
Click to collapse
I had the same issue with battery life after I flashed to and of the KK roms. My problem was Greenify, and I don't know why. Removing it didn't solve my problem so I'd restart from the beginning. My drain is less than 1% per hour idle without it and almost 10% per hour running all the same apps with greenify in different settings. Jasmine ROM just drained for me all the time.
*first post, be nice. I only joined because of all the trouble I went through to get my battery life back.

LG G6 very short SOT

Hi, I have issue with my lg g6 .
The phone is about 1 months old but I reach very poor SoT max 2,5 h.
I check the main forum threads, but i cannot fix the issue
- I use the newest software
- greenify
- during this 2 hours I use only chrome/messenger/instagram
- it does not matter if I used wifi or data
- home app: home
- other apps: swipe, keepass2android, dropbox
BR
dezerb
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dezerb said:
Hi, I have issue with my lg g6 .
The phone is about 1 months old but I reach very poor SoT max 2,5 h.
I check the main forum threads, but i cannot fix the issue
- I use the newest software
- greenify
- during this 2 hours I use only chrome/messenger/instagram
- it does not matter if I used wifi or data
- home app: home
- other apps: swipe, keepass2android, dropbox
BR
dezerb
Click to expand...
Click to collapse
the same [emoji19]
Sent from my [device_name] using XDA-Developers Legacy app

install better battery stats, give it permissions via ADB.
Then monitor a full charge and see what partial wakelocks, alarms, processes are using your battery.
https://www.xda-developers.com/stop-wakelocks-android-without-root/

Kaioh_shin said:
install better battery stats, give it permissions via ADB.
Then monitor a full charge and see what partial wakelocks, alarms, processes are using your battery.
https://www.xda-developers.com/stop-wakelocks-android-without-root/
Click to expand...
Click to collapse
Hi I did, how you told.
I charged the phone up to 100% and left for 30 minutes without any use and captured following screenshots.
Do I understand correctly that the phone is always awake because of the lg gnss bloatware?

are you getting same battery life on lte and wifi
your lte signal looking too low
if it fluctuate a lot then it will take a lot of battery .

0% deep sleep

I don't mean to be glib, but the advice for battery issues is always the same (and mind-numbing basic):
1. Remove unnecessary apps
2. Factory reset the phone
None of the dozens of other tweaks mentioned here make a difference for most people.
And you can't do anything about signal strength.

Kaioh_shin said:
install better battery stats, give it permissions via ADB.
Then monitor a full charge and see what partial wakelocks, alarms, processes are using your battery.
https://www.xda-developers.com/stop-wakelocks-android-without-root/
Click to expand...
Click to collapse
adeelraj said:
are you getting same battery life on lte and wifi
your lte signal looking too low
if it fluctuate a lot then it will take a lot of battery .
Click to expand...
Click to collapse
I done some other tests after phone reboot and I becomed result with 87% deep sleep. But it does not matter if I used wifi or mobile data, the sot is always the same short.
jshames said:
I don't mean to be glib, but the advice for battery issues is always the same (and mind-numbing basic):
1. Remove unnecessary apps
2. Factory reset the phone
None of the dozens of other tweaks mentioned here make a difference for most people.
And you can't do anything about signal strength.
Click to expand...
Click to collapse
I supposed that all the tweaks can barely help. I had hope that I could find some fix before reset the factory settings. In some way the phone is to be used and it is simply annoing the set the whole setting from scratch after reset....
But I think I don't have any other possibility (or I can wait for a Pie and hope for the improvement after the update)
Br
dezerb

Try to disable the WIFI and Bluetooth searching for improve the location. And then do again the test to see the deep sleep.

With accubattery app, you can estimate how"healthy" your battery is.
In normal usage, you would get about 18% of battery usage per hour with screen on, and max 1% with screen off

I made some tests with AccuBattery and the drain on screen on is unacceptable about 25-28%. The battery health is about 96%.

I use mcs magisk module with 90/80% config since day one with greenify + xposed module and after a year of relatively heavy use I'm still getting ~6h SoT (35% brightness). Maybe you should try to greenify some apps? Without root you have limited options though.