Database Develop

Why does my battery drain so quickly? (Details Inside)

I have always seen threads here of people getting so much better battery life then what I am getting.
I am down to 80% after 1 hour and 14 minutes after unplugging from the charger.
Here is my configuration:
Cyanogen 5.0.6
Pershoot's Kernel 2.6.33.3 (OC/UV to 1.113GHZ)
On 3G with 5 bars
SetCPU (Ondemand)-
Sleep/Standby: 384 Max, 245 Min
Power < 100%: 1113 Max, 245 Min
Display: 28%, 44 Minutes Time On
Live Wallpaper: Nexus
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Usage:
-Listened to 1 song via the Music App
-Voice Calls: 5 Minutes and 26 Seconds
-Used Maps to get directions for my sister (Did not use GPS)
-Read a couple of articles on Newsroom
-Viewed news feed on Facebook
-Posted 2 status updates on Facebook
-Viewed recent Twitter tweets
I don't know why Skyfire is in the list since I did not use it at all, nor was it running in the background.
Widgets:
-Pure Calendar
-Facebook
-FML
-Beautiful Widgets
-Smooth Calendar
-Pandora
-Music
-DriveSafe
That's about it. If you have any other questions please let me know.

Just a shot in the dark, but you have a lot of widgets running, and your over clocked, as well as having a live background, my guess is its draining as it should be!

My 2 cents: I just lost 30% in 2 days with my setup... try it out.
Switch to intersectRaven's 33.4 Kernel (the 925mV Version, Latest Release)
Download Task Manager (i use the regular one with the little green android)
Setup Task Manager to ignore only 2 or 3 important apps (like the clock if you use an alarm) Also, set it up to kill all tasks 5 mins after screen goes black.
That should increase your battery life quite a bit.

jn_vista said:
Just a shot in the dark, but you have a lot of widgets running, and your over clocked, as well as having a live background, my guess is its draining as it should be!
Click to expand...
Click to collapse
Well the kernel is undervolted so having it overlocked supposedly doesn't decrease battery life. As far as the widgets and live wallpaper go, I thought they don't use that much battery?.
mrandroid said:
My 2 cents: I just lost 30% in 2 days with my setup... try it out.
Switch to intersectRaven's 33.4 Kernel (the 925mV Version, Latest Release)
Download Task Manager (i use the regular one with the little green android)
Setup Task Manager to ignore only 2 or 3 important apps (like the clock if you use an alarm) Also, set it up to kill all tasks 5 mins after screen goes black.
That should increase your battery life quite a bit.
Click to expand...
Click to collapse
I've been meaning to try a new Kernel. Thanks for the info, I will try intersectRaven's and see how it goes. By the way, you lost 30% in 2 days is crazy! What type of usage have you put it through?

Am I the only one who thinks it's a heavy use and the drain is perfectly normal? I can bet that during those 1.25 hours the phone rested maybe several minutes - only the drain from reading a couple of articles would cover 10%...

Jack_R1 said:
Am I the only one who thinks it's a heavy use and the drain is perfectly normal? I can bet that during those 1.25 hours the phone rested maybe several minutes - only the drain from reading a couple of articles would cover 10%...
Click to expand...
Click to collapse
Nope! I can drain a quarter of my battery, at home, while using 3G, just browsing the internet, in about that time...

Jack_R1 said:
Am I the only one who thinks it's a heavy use and the drain is perfectly normal? I can bet that during those 1.25 hours the phone rested maybe several minutes - only the drain from reading a couple of articles would cover 10%...
Click to expand...
Click to collapse
Well I never thought of it that way. The articles weren't that long (3-6 paragraphs) but then again I am not sure how much drain NewsRoom has when it fetches them.

Vandam500 said:
Well I never thought of it that way. The articles weren't that long (3-6 paragraphs) but then again I am not sure how much drain NewsRoom has when it fetches them.
Click to expand...
Click to collapse
Not sure about fetching, probably not much. But screen being on (and probably with white background and non-minimal brightness) for the time of reading drains a lot.

I finally rooted last night and flashed cyanogen latest ROM and now suddenly have the same poor battery life. I used stock for 3 months and this is an enormous difference than stock. I'm at 59 minutes and down to 76 % already. I have no apps installed or any widgets since I only just flashed. Stock cyanogen. So why is cyanogen So power hungry?

Pure calendar.
I totally respect the programmer and love his apps. But everytime batery has been an issue removing the widget has usually been tied to better battery life. Placebo ?..maybe..
I got terrible life with Cyn 6.05
Helix is supposedly a battery raper. That + Pure would suck Batt life like mad for me.
Both 5.05 and Froyo give me much better results.

xManMythLegend said:
Pure calendar.
I totally respect the programmer and love his apps. But everytime batery has been an issue removing the widget has usually been tied to better battery life. Placebo ?..maybe..
I got terrible life with Cyn 6.05
Helix is supposedly a battery raper. That + Pure would suck Batt life like mad for me.
Both 5.05 and Froyo give me much better results.
Click to expand...
Click to collapse
Hmm I just added it to one of my homescreens. I will see if the battery changes cause I have been getting a lot better battery life with Froyo

RogerPodacter said:
I finally rooted last night and flashed cyanogen latest ROM and now suddenly have the same poor battery life. I used stock for 3 months and this is an enormous difference than stock. I'm at 59 minutes and down to 76 % already. I have no apps installed or any widgets since I only just flashed. Stock cyanogen. So why is cyanogen So power hungry?
Click to expand...
Click to collapse
Yeah it definitely is Cyanogen. Since I flashed Froyo, my battery life has doubled in comparison to CM 5.0.6 (I hear that 5.0.7 is even worse).

Vandam500 said:
Yeah it definitely is Cyanogen. Since I flashed Froyo, my battery life has doubled in comparison to CM 5.0.6 (I hear that 5.0.7 is even worse).
Click to expand...
Click to collapse
Ive been wondering the same thing and considering installing his "perks" seperately.
I do wonder if its Helix. More than a few times Ive heard people claim piss poor battery life.

xManMythLegend said:
Ive been wondering the same thing and considering installing his "perks" seperately.
I do wonder if its Helix. More than a few times Ive heard people claim piss poor battery life.
Click to expand...
Click to collapse
I had terrible problems on CM 5.05 and 5.06. I tried what I thought was everything: setcpu, taskmanagers, every kernel known to xda. Nothing helped.
And then, one day, when I had stopped trying, I noticed I was getting good battery life again. What changed? My main suspects are replacement launchers, such as Helixlauncher etc., wifi turned on when no wifi is available -- this was big one!
And apps trying to update all the time.

Your screen was on for 44 minutes out of 74 minutes? I'm going to label that a big fat duh.

juice defender works great doubled my batterylife

I am a battery cheapstake and get pretty good battery about a day and change, with one hour on the phone and some google searching/mapping and surfing and a game or two, if you do the following:
Keep screen at minimal. You can increase it on command from the command widget if you really it, like when outdoors in bright sunlight. It takes 1 second to change and it can save you tons of battery during the course of the day.
Same goes with keep the battery to turn off after 15-30 seconds. Again, over the course of the day it adds up.
Remove live-wall papers, they are nothing but a drain. I am an photographer enthusiast so I use my own photography, a dark shot to save on battery as well. Plus it is nice to show your own stuff than someone elses.
Use no polling widgets, unless you need to. I only have 4 widgets and none pull down anything from the net at anytime. If I need twitter, it takes 2 seconds to open the app.
One of the widgets I DO have is the 2G/3G switch. When the Nexus is in my pocket, I do not need it to download/upload/sync with anything at lighting speeds. So if anything gets updated, it will be slower but I do not care. If I need the phone, I switch the puppy to 3G and fly. Savings are HUGE and guarantees my phone will have juice when I NEED it, and not use up while on standby.
I read that having task killers is a waste of time on Android. Since it is not a Windows device, ram and apps are not handled the same way. I used to kill everything on site on my old Tytn so I thought it natural. However, I read that Android is fairly good at memory managment. So for now, what I do is back out, out of all my apps --unless they have an 'exit' option. I am currently experimenting with that, after using a number of task killers from the market I think I have a fair idea of what I should and should not expect. I will let you know.
If you really want to make a difference, uncheck 'background sync' on settings under the sync option. If I need to check my email, I can again, pull it down fast. I know a few people who want to have everything push, however, unless you are that popular that you get emails\twitter & facebook notifications every 2-minutes or because of work then it is not really needed.
It is a bit of a trade-off, but you can't expect to have a running a 1Mhz chipped, huge screened, live wall-papered, widget-polling that is always connected to the internet device and expect it to to last you more than a day with an -in my opinion, fairly small- sub 1500mAh battery. If you had, say
<3000mAh, ahhh..., then that would be something.

Feels a bit cramped but i like the swipe to the media section. Either way great to have options good luck with getting it to work fully.

5.0.7 worked wonders for me batterywise.. better than stock AND slightly better than Froyo.
Is weird that some phone works better than other phones with the same ROM...funny..
I would revert back to Cyanogen if the wifi could stay constantly on. Thats the only thing stopping me.

Pretty good battery life!

I'm seeing a lot of posts about poor battery life but am i the only one who's getting pretty damn good results?
I'm currently on 2days, 18hours, 31minutes and 41seconds on battery* and it's still on 31%. I reckon i can still probably get another 24 hours out of it.
Is anyone else getting similar results?
* Roughly: 5 phone calls, 20+ texts, 40+ minutes of youtube via HDMI out, 5 photo's (some with flash) and internet/market browsing here and there.
I'm running CM7 with vorkKernel (standard clock speed) with GPS turned off and WiFi on (when at home),

that kernal you are using. does it show accurate battery stats? I noticed cm7's battery is pretty erratic.
btw this is xthedarknight99 on twitter!

My battery life is great when I use JuiceDefender and when I don't use apps that use the mobile data connection the entire time.
My battery gets raped to hell and back when I have apps running that use mobile data, like MSN or IRC. I work 4-hour shifts and during a shift I usually leave MSN running using 2G data. In those 4 hours I lose around 40-50% of my battery, it's wicked.
One thing I've noticed is, when I enable Wi-fi and leave it enabled, battery drain overnight is around 8%. When I disable Wi-fi AND Mobile data and let JuiceDefender enable mobile data for a short time every 15 mins, my battery drain overnight is around 10%. If I leave mobile data enabled the entire time my battery loses 30% overnight.
Something is seriously wrong with the mobile data chip/driver.

hazard99 said:
that kernal you are using. does it show accurate battery stats? I noticed cm7's battery is pretty erratic.
btw this is xthedarknight99 on twitter!
Click to expand...
Click to collapse
Not sure. The battery stats may be off slightly but it's been well over 2 days since i last charged my phone
here's the screenshot i took a few hours ago.
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EDIT: Accidentally put 12 hours instead of 18 in the first post ><

Tr0gledyte said:
My battery life is great when I use JuiceDefender and when I don't use apps that use the mobile data connection the entire time.
My battery gets raped to hell and back when I have apps running that use mobile data, like MSN or IRC. I work 4-hour shifts and during a shift I usually leave MSN running using 2G data. In those 4 hours I lose around 40-50% of my battery, it's wicked.
One thing I've noticed is, when I enable Wi-fi and leave it enabled, battery drain overnight is around 8%. When I disable Wi-fi AND Mobile data and let JuiceDefender enable mobile data for a short time every 15 mins, my battery drain overnight is around 10%. If I leave mobile data enabled the entire time my battery loses 30% overnight.
Something is seriously wrong with the mobile data chip.
Click to expand...
Click to collapse
Yeah, Wifi uses a lot less power than 3G when it's connected but uses a hell of a lot of power if it's constantly scanning and can't connect. I always turn mine on when i get home and turn it off when i leave the house

Noticed the same thing too. But less acutely, as I don't use any apps that use data constantly, except for an hourly email check.
Similarly, wifi at home seems to have slower drain than 3G mode when I am outdoors (wifi switched off when outdoors). I don't use 2G mode.
Generally, I stay above 50% battery level after a whole day's use - so I can't complain too much.

Finally plugged my phone in lol
Not got a screenshot of it but the stats are: 3days, 6hours, 17minutes and 49seconds on battery. Not bad!

Mine did something "bad" like this too. 3d 5h... never imagined, after the problems it makes day to day...

You lucky bugger! Ive actually had time to test it in the wild(slightly) today and well its not good at all!
5hours 20minutes or something around that, phone actually drained 99% lol! In that time i did:
almost 2 hours of browsing web, forums like hexus/xda so nothing to heavy... no constant loads/refreshes
Played 10-15minutes of xconstructor (im so easily pleased!)
Had 2 gmail accounts of auto sync, push basically
made around 27minutes worth of phone calls
5 texts
Not much really to drain 100% battery . Any ideas on how to improve battery life?
edit: this is on modaco fr18b2

@meltus.... do you mind me asking whether you're on stock rom or what apps etc you have changed to get that. I'm getting a healthy 24 hours for the battery normally but wouldnt mind extending that!!

Did you try to recalibrate the bettery with batterycalibration app? For me it basically doubled the battery life!

i recalibrated the battery before installing a new rom (it was 100% battery) however ill try again .

Meltus do you have sync on?
Also do you use whatsapp?
Those are the #1 battery killers on my phone.
Specially whatsapp.

I can't understand how your battery can last so long, while mine last less than a day ...!!!

Meltus said:
I'm seeing a lot of posts about poor battery life but am i the only one who's getting pretty damn good results?
I'm currently on 2days, 18hours, 31minutes and 41seconds on battery* and it's still on 31%. I reckon i can still probably get another 24 hours out of it.
Is anyone else getting similar results?
* Roughly: 5 phone calls, 20+ texts, 40+ minutes of youtube via HDMI out, 5 photo's (some with flash) and internet/market browsing here and there.
I'm running CM7 with vorkKernel (standard clock speed) with GPS turned off and WiFi on (when at home),
Click to expand...
Click to collapse
That is impressive
May I know which nightly build are you on?
I've always been tempted to install them but i was too afraid of stability issues

that is indeed impressive. my battery gets merked by approximately 33% after 40 minutes of youtube lol

I have almost the same battery life on the latest CM kang, but with 2G only... With 3G I get little more than one day...

I think he's pulling our leg with that screenshot
No details of rom, baseband or ril combo etc.
-smc

hicks12 said:
You lucky bugger! Ive actually had time to test it in the wild(slightly) today and well its not good at all!
5hours 20minutes or something around that, phone actually drained 99% lol! In that time i did:
almost 2 hours of browsing web, forums like hexus/xda so nothing to heavy... no constant loads/refreshes
Played 10-15minutes of xconstructor (im so easily pleased!)
Had 2 gmail accounts of auto sync, push basically
made around 27minutes worth of phone calls
5 texts
Not much really to drain 100% battery . Any ideas on how to improve battery life?
edit: this is on modaco fr18b2
Click to expand...
Click to collapse
I lost 3 or 4% in one hour on standby with Modaco fr18b2. Now on CM7 kang I have still 100% after 8 hours on standby. Data-2G and Wi-Fi are turned on all the time.
Well settings are the same as with Modaco ROM.

I want to flash CM so bad but am waiting to see what the official gingerbread does.. I know that once I go to CM I won't go back lol my battery is horrible right now
Sent from my LG-P999

Anyone else have battery issues?

My fascinate lasted longer. This has been on standby more than used. Im even running autokiller and advanced taskiller
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Sent from my DROID BIONIC using xda premium

Hmm
Bionic has
bigger screen, thus need more power
dual core process, thus need more power
LTE 4G, thus need more power
Hard to compare it against fascinate. Why my Lexus GS drain more gas than my Camry XLE V6. they are both V6..heheeh

yutzyscott said:
Im even running autokiller and advanced taskiller
Click to expand...
Click to collapse
Try not doing that.

Looks like you have no 4G where you are... make sure you are set to CDMA only in the network settings.

My battery seems to suck a little bit, too. On the drive in to work this morning, a 1 hour commute, my bionic sat on the seat next to me without being used. It still managed to chomp through 20% of the battery. So, basically at that rate, I'll get 5 hours of standby. Wonder if something is wrong?
Bluetooth (which seems to be a battery hog) was off, wifi was off... not sure what to do other than swap the battery with a replacement.

install system panel, turn on monitoring for everything, use that to determine how much cpu useage apps are using.
if you have an app(s) that are using near 100% cpu useage 24x7 that would happen

I have had the phone since 9am yesterday and have not been impressed with the battery so far. Today was the first full charge and I am at 60% after 2.5hrs. Most of my power consumption has been "Cell Standby" and not the screen which I would normally see.

Pitnefor said:
install system panel, turn on monitoring for everything, use that to determine how much cpu useage apps are using.
if you have an app(s) that are using near 100% cpu useage 24x7 that would happen
Click to expand...
Click to collapse
Thanks! Will give it a try and report back. I hope I can get this resolved.
UPDATE: Installed System Panel and ran it for a couple days. Nothing seemed out of the ordinary. I let the phone discharge completely and then charged it completely before turning it back on. I got about 26 hours of moderate use before it needed to be charged again. Slightly heavier use got me to about 15 hours. There doesn't appear to be anything wrong, and the battery is light-years better than that of my old Eris. So I'm happy!

I'm actually getting pretty good battery life.. I use wifi when im home and at the office. With moderate to heavy use I didn't need to charge my phone until at least 18 hours. I know most say its not necessary, but I have a habit of fully charging my phone prior to first use and allowing it to drain completely before recharging.. perhaps that helped..

My battery has been doing great so far. Been using it a lot today and I'm at 45 percent after 8 hours of use. In me experience, it takes a few full charges before a battery gets fully calibrated. I've read that elsewhere as well. I've been very satisfied so far with battery life. I keep it on wifi at home and work so that probably helps alot.

I would say do a few discharge/full charge cycles on the phone first. Give it a few days to calibrate properly.
Also custom ROM's should help to remove undoubtable bloat that this phone comes with.

psufan5 said:
Looks like you have no 4G where you are... make sure you are set to CDMA only in the network settings.
Click to expand...
Click to collapse
No 4G here either, didn't think to change that. Thanks! One additional question about the battery. I have a battery widget that displays the % remaining. I noticed that it drops in 10% increments instead of 1% like it used to on my Eris. I also checked About Phone > Status > Battery level and it seemed to decrease in 10% increments there as well. Is this normal with the Bionic? Or is something wrong with mine?
Has anyone else noticed this?

mine seems to be dropping by 10% as well, but my usage has been fairly good. Much better yesterday than today. Should know better if a day or two.

Task killers are bad since Froyo (2.2). Android actively manages applications and shuts them down when space is needed. Your task killed just winds up arm-wrestling with the OS, making both work overtime and not accomplishing a thing. Let the OS do what it's designed to do.
For those of you just starting with 4G, if you live in a non-4G area or are on the border where 4G and 3G constantly swap out, this will play hell on your battery, so turn 4G off unless you're in a place to take advantage of it.
Pentile screens are power sippers, so don't be surprised if your screen % is lower than normal.
I may be wrong, but I don't believe dual-core processors consume too much more power than single cores under normal circumstances.
Turn off bluetooth, satellite and wifi when not in use, and especially when unavailable. Leaving wifi up when you're away from home can chew up a lot of power as the phone is constantly seeking a signal.
Putting the screen on auto brightness may save some power. Also setting the screen time-out to a reasonable time will help.
Make sure you don't have a dozen accounts like Facebook, Gmail, Yahoo and Twitter checking for updates constantly.
You don't have to train lithium ion batteries like we used to with nickle-cadium back in the day, but your battery has some simple logic in it that takes care of housekeeping. When you first get it, and about once a month after, you should drain your phone's battery completely and then charge it back up. This helps the battery, and therefore the phone, understand how much power is left with greater accuracy. If you'd like to research this subject, I suggest Battery University and Apple.

I am having horrible battery issues now, my battery is not lasting 6 hours with very light usage.
right now my usages shows
Battery 15%
4h 56m 21s on battery
media 46%
cell standby 24%
phone idle 21%
voice calls 5%
display 4%
social location2%
this is the first time i have seen media at the top of the list, usually it is cell standby that has been using the most
this has been going on since saturday, i have two batteries and it does this on both, i figure it must be an app i loaded. i dont think i have loaded anything that i didnt use on my OGDroid but one of them must be disagreeing with the Bionic. i am planning and doing a factory reset tonight (as much as i hate doing it)
any other ideas or suggestions would be greatly appreciated.

effinay said:
My battery seems to suck a little bit, too. On the drive in to work this morning, a 1 hour commute, my bionic sat on the seat next to me without being used. It still managed to chomp through 20% of the battery. So, basically at that rate, I'll get 5 hours of standby. Wonder if something is wrong?
Bluetooth (which seems to be a battery hog) was off, wifi was off... not sure what to do other than swap the battery with a replacement.
Click to expand...
Click to collapse
This is a 4G pitfall. You're probably going in and out of 4G/3G coverage... it may seem like a lot, but when your phone is constantly looking for 4G the battery goes QUICK. Your best bet? Turn on 3G only (cdma only) when you drive. There are widgets in the market that will take you directly to the setting.
Sent from my DROID BIONIC using xda premium

Right now im at 1 day 3 hours 46 minutes with 30% left. That's with an extended battery and mild use. Just testing, browsing xda app, and reading news in pulse. Few emails and some web browsing.
Sent from my DROID BIONIC using xda premium

Not sure what my battery life was before i rooted and debloated since i ran stock for about 15 mins, but with very heavy use i get about 7 hrs, with normal use i get about 16 hrs
Sent from my DROID BIONIC using xda premium

Battery life is incredible on this phone.
Sent from my DROID BIONIC using xda premium

so I did a hard reset and sent my phone back to factory default :-( and let it sit for a few hours with nothing on it except for juice plotter so i could monitor it and it was still pretty crappy I then removed everything i had copied from both SD cards (ie. photos, music and movies from my OGDroid) and let it sit for a few more hours and the batterylife improved dramatically, I am guessing there is an indexing service or a DRM service of some sort that is part of MOTOBLUR and it must have been continually hitting my cards.
today the battery life is back to normal. i have installed just a few things like friendcaster adwlauncher and a few others that i normally have and have used the phone moderately for the last 3 hours and it appears i might get another 10 - 12 hours outta of it..
does anyone know why i had issues when i put the media from my old phone onto my new one, do photos and videos have to be in a specific directory or on one of the two cards specifically??
any help would be appreciated.

[Q] Note Battery drain? Rate Your battery Life!O_o?

Hello,
im thinking on buying the Note =]
i wanted to ask "heavy","excessive" users how is the phone battery drain ?>
*how long your phone lasts without charge (excessive,heavy use)?
*how long your phone lasts without charge (normal use)?

Im only use any of my smartphones with excessive,heavy use.
I have only 2 full battery circles and im using stock root rom/kernel.
All my phones was with very good custom kernels and lower voltages cause i wanted to stay alive during the day (8-23:00).
Now,my battery keep up the day but more easy than my previous phones (you can see which in my sign).
So, even my battery is new with few full circles, even im not using custom kernel for uc or uv, its better than my previous smartphones.

For a 5.3" display the battery life is exceeding expectations.. Based on my usage it has more battery life than the Galaxy S2 altho movie time is still the same at 8:30hrs to 9:00

I think it's very hard to define excessive vs normal use. Also the usage patterns of different people varies greatly. mostly because some use wifi on 100% of the time, others just turn it on here and there to check emails. Same for background sync and autosync which are battery drainers . So it's really hard to compare...
I keep my Wifi constantly on, background sync on, autosync is off but I have a task in Tasker to autosync every three hours manually. I have some push emails in K9 and twitter, gtalk and tapatalk syncing.
So on a day of super heavy usage the phone will last about 16-17 hours (ofcourse that includes about 7 hours of sleep time). With normal to moderate use I can make about 24-27 hours.

Hi people! I'm noob here! (wanted to write new but couldn't resist!)
I recently bought the Note and been having a few hard times with a couple of things.
One of the specifics concern battery life. Having been showered in the awesomeness of a 2,5 ma battery i thought the battery would be invulnerable but i was wrong.
The first 4 days the battery lasted me quite fine having to charge the phone once every two days. Heavy consumption was done for brief periods of 1-1:30 hours where i would try to shape my phone in the image that i wanted.
By the end of the fourth day i had a respectable amount of apps inside but not too many to explain the fact that my battery life now has decreased to 1 day.
I kinda panicked when i noticed the difference and went ahead to install Juice defender and advanced task cleaner apps. What's weird is the fact that before i did i would charge the phone before going to bed at night and then pull the plug when it would be full. By the morning the phone had lost about 25% while inert!
Noticing that i would go to the battery use feature in settings and see that the radio(!) which i hadn't been using was eating away my battery's life along with the screen which was inactive as a consequence of the phone in locked mode and a few other apps which filled the rest of the loss.
I tried to kill apps and i use Juice defender pro in custom advanced mode effectively rendering the phone dead after locking. It still consumes the same percentage of battery although now it blames the radio less and the live wallpaper more.
Am i to assume that my battery has reached it's "puberty" and that's "normal" from now on or is there a problem i just can't diagnose due to lack of experience?
This phone is my first android device. I do not know my way around it although i am learning more and more in a rapid learning curve.
Please note anything you might think has escaped my attention.
Thank you.

Android 4.9 Marshmallow said:
Hi people! I'm noob here! (wanted to write new but couldn't resist!)
I recently bought the Note and been having a few hard times with a couple of things.
One of the specifics concern battery life. Having been showered in the awesomeness of a 2,5 ma battery i thought the battery would be invulnerable but i was wrong.
The first 4 days the battery lasted me quite fine having to charge the phone once every two days. Heavy consumption was done for brief periods of 1-1:30 hours where i would try to shape my phone in the image that i wanted.
By the end of the fourth day i had a respectable amount of apps inside but not too many to explain the fact that my battery life now has decreased to 1 day.
I kinda panicked when i noticed the difference and went ahead to install Juice defender and advanced task cleaner apps. What's weird is the fact that before i did i would charge the phone before going to bed at night and then pull the plug when it would be full. By the morning the phone had lost about 25% while inert!
Noticing that i would go to the battery use feature in settings and see that the radio(!) which i hadn't been using was eating away my battery's life along with the screen which was inactive as a consequence of the phone in locked mode and a few other apps which filled the rest of the loss.
I tried to kill apps and i use Juice defender pro in custom advanced mode effectively rendering the phone dead after locking. It still consumes the same percentage of battery although now it blames the radio less and the live wallpaper more.
Am i to assume that my battery has reached it's "puberty" and that's "normal" from now on or is there a problem i just can't diagnose due to lack of experience?
This phone is my first android device. I do not know my way around it although i am learning more and more in a rapid learning curve.
Please note anything you might think has escaped my attention.
Thank you.
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Your question is a little OT but i'll try to answer real quick.
25% loss of battery sounds about right if you have your Auto Sync ON.
Disable it and you'll go down to about 10% a night. Am i right or am i totally off here ?

mfractal said:
Your question is a little OT but i'll try to answer real quick.
25% loss of battery sounds about right if you have your Auto Sync ON.
Disable it and you'll go down to about 10% a night. Am i right or am i totally off here ?
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I'll try it and see tonight. Thanks mfractal. Having been an IPhone 3G owner i gotta say, it's still kinda disheartening to see that 10% battery loss overnight is considered "normal". Will work my way around purchasing a second backup battery for emergencies.
Thanks again.

Android 4.9 Marshmallow said:
I'll try it and see tonight. Thanks mfractal. Having been an IPhone 3G owner i gotta say, it's still kinda disheartening to see that 10% battery loss overnight is considered "normal". Will work my way around purchasing a second backup battery for emergencies.
Thanks again.
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i also come from an iphone, and yeah, you have to make some adjustments.
you can take that drain to 1-2% if you disable Background Sync.

this was my batteries first full cycle. but you should get a general idea of how it performed.
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running AntoniomistrettA ( http://forum.xda-developers.com/showthread.php?t=1372619 )
this was what i would consider 'heavy' use, atleast by my standards. Edge only, Auto sync on, brightness at 75%, fairly frequent use.

Draining twice as fast after an update on apps this morning!
Hmmm, I have been using the Note for about 2 weeks now. With Juice Defender installed (with aggressive settings), I get by OK with the battery for a full day.
Well, that was until this morning when I ran an update of a few apps, and now I barely got to noon when the battery went completely drained. Same settings on Juice Defender.
Any clues on how to deal with this? I am thinking of reverting all the updates to double check.

guys, the steps to analyze battery drain are quite standard.
Download BetterBatteryStats (there's full version for free for XDA users, search the forum)
Download CPU Spy
Charge to 100%, reset statistics in CPU Spy and let the battery drain to 10-20%.
Then Analyze wakelocks in BetterBatteryStats and you will see which programs keep your phone awake.
If you want to make sure the phone is entering sleep mode and staying there, reset cpu spy stats before going to sleep and check in the morning. more than 90% of the time the phone should be in deep sleep. If not - again, betterbatterystats's wakelocks will show you what's keeping the phone awake.

mfractal said:
i also come from an iphone, and yeah, you have to make some adjustments.
you can take that drain to 1-2% if you disable Background Sync.
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That's EXACTLY what happened! I am stunned! I left the phone last night at 97% and found it this morning at 95%!!! When i saw it i was dumbfounded!
Thank you very much mfractal!

Android 4.9 Marshmallow said:
That's EXACTLY what happened! I am stunned! I left the phone last night at 97% and found it this morning at 95%!!! When i saw it i was dumbfounded!
Thank you very much mfractal!
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sure NP.
problem is that background sync is required by quite a lot of programs to function correctly. Hell, market won't even open with it disabled.

My battery life is pretty good atm considering its still a new toy and gets a heavy workout.
The battery life will improve over time as my usage will drop but with the screen it pretty much can replace my pc for any basic web stuff outside off the heavy duty work only a high spec PC is good for.

Disabling background sync defeats the purpose of having a smart phone, no?
mfractal said:
sure NP.
problem is that background sync is required by quite a lot of programs to function correctly. Hell, market won't even open with it disabled.
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I do like my phone and the screen real estate, and understand that, it can be major battery hog. But I would really like it to be super efficient when the screen is off.
I was looking at my battery drain graphs, (Settings>About Phone>battery usage) and noticed that my phone is active almost all through the night, (even when the screen is off).
So i loose 25-30 overnight, on IDLE.
Is this normal?
I'm using Exchange instead of the Gmail app for my mail. Does that use more battery?
Regards

gaddy888 said:
I do like my phone and the screen real estate, and understand that, it can be major battery hog. But I would really like it to be super efficient when the screen is off.
I was looking at my battery drain graphs, (Settings>About Phone>battery usage) and noticed that my phone is active almost all through the night, (even when the screen is off).
So i loose 25-30 overnight, on IDLE.
Is this normal?
I'm using Exchange instead of the Gmail app for my mail. Does that use more battery?
Regards
Click to expand...
Click to collapse
Of course gmail use more battery like every app running in background and syncing.
But your battery drain overnight is really so much.
The normal is 1% per hour without any app syncing in background and about 2% or 3% with background syncing apps.So you must check your apps.Something draining your battery.
Overall,i don't believe that note battery isn't good.i think Samsung haven't done so good work in filmwares and apps.
I have removed the most of Samsung apps and my battery is great.
Maybe a update from Samsung solved battery issue.In nexus previous days released a filmware update which change amazing the battery life.users mention that they loose 2% overnight.And before this update nexus battery sucks!
So, we must pray for something similar in our note from Samsung...
Sent from the best smartphone, Galaxy Note...

Do you have auto sync on? If so please turn it off and watch the drain overnight drop to about 10%
If not then we got a problem

I got my Note two weeks ago and am since struggling with my battery usage as well.
It's hard to reproduce, but Android OS is the reason for excessive battery usage when the phone is idle.
Today I found this quite interesting. Please have a look at this screenshot:
Since a few days ago I'm using Llama to control some settings on my phone, but the drainage was present before I installed Llama.
When you look at the first gap in WiFi usage you can see the phone disconnecting from my WiFi router at home (TP-Link TL-WR1043ND) when Llama disabled my WiFi.
About 20 minutes later, when I arrived at the office, Llama reactivates WiFi and my phone connects to our WiFi access point at the office (TP-Link TL-WA801ND).
At this point Android OS usage goes up considerably and it won't stop, even if I disable the phone's WiFi.
Actually at the second, larger gap in WiFi usage I disabled the WiFi connection manually which caused my phone to stay awake until I activate WiFi again.
Edit: Using Titanium Backup I have frozen Wifi-Sharing and the Wifi Manager.
Apart from that, Wifi usage was never an issue on my old Milestone, where I had Wifi enabled permanently and the battery lasted for 4-5 days.
I'd be glad to provide more information if that could help figure out the cause of AOS's battery usage.
My phone is currently running:
PDA: N7000XXKK9
PHONE: N7000XXKK5
CSC: N7000OXAKK9
I installed FM-Kernel 1.4, hoping it would fix this issue. It did for a day or so...
Apart from the kernel it's the newest 2.3.6 stock ROM I received via FOTA though.

I easily get a good day out of mine with quite a bit of use. If use mine lightly I can get 2 days out of mine. If you are in need of urgent 3G switch 3G off to GSM to conserve battery life.

desiregeek said:
I easily get a good day out of mine with quite a bit of use. If use mine lightly I can get 2 days out of mine. If you are in need of urgent 3G switch 3G off to GSM to conserve battery life.
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Sorry, I forgot to include it in my post.
Since I got the phone I have it set to 2G only, because I used up my monthly quota and am getting throttled to GPRS speeds anyway. So the 3G connection isn't the issue either.
Apart from that this happens in flight mode as well.

Question SOT is lesss really less

I've seen a maximum of 5 hours of SOT since I got the phone. My sot time is very short when I see other people's sot times. I always use the phone with the following features; +4G +always bluetooth +always location + no wifi +always sync +dolby atmos +dark mode +when i got notifications aod. Although I turned off the settings I used, I still could not do this for more than 5 hours.
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Show us a screenshot of battery usage when you are at 10% - not at 80% - then we can see where all your battery fuel is going.

Sure its from 2 days ago

Battery is draining extremely fast on Android 12 (BULK) as well...
Is there a way to know if our phones haven't been manufactured by Samsung?
- There is Korea but also Vietnam etc... this might have an impact somehow?

What are you doing on whatsapp....that's a huge drain....

DS1000RR said:
What are you doing on whatsapp....that's a huge drain....
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whatsapp is always a huge drain if you use to send and receive messages. My solution to this was enable multi-device login. I, now, use Whatsapp mainly on my computer when I'm at work and then revert to the phone when I'm off. The led to a huge difference. What used 25%+ for whatsapp..now stands at 4-5% over the day.

RedWave31 said:
Battery is draining extremely fast on Android 12 (BULK) as well...
Is there a way to know if our phones haven't been manufactured by Samsung?
- There is Korea but also Vietnam etc... this might have an impact somehow?
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Actually since when I bought phone (almost 1 year) battery same. Even I sent to warranty for change battery. But still same sot

DS1000RR said:
What are you doing on whatsapp....that's a huge drain....
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Morning 7 to 5pm I m using WhatsApp for work. I m using 2 WhatsApp. Work WhatsApp isn't stop every minute always receiving several message. I can't stop WhatsApp because of work. I think that's why WhatsApp percent is so much

amirage said:
whatsapp is always a huge drain if you use to send and receive messages. My solution to this was enable multi-device login. I, now, use Whatsapp mainly on my computer when I'm at work and then revert to the phone when I'm off. The led to a huge difference. What used 25%+ for whatsapp..now stands at 4-5% over the day.
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reqirement of my job I m working at construction site so I can't use on my computer. I don't have other solution to multi wp

I use WhatsApp endlessly with friends and family every day and I get nothing remotely like that drain....

DS1000RR said:
I use WhatsApp endlessly with friends and family every day and I get nothing remotely like that drain....
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Also I tried to several time uninstall and reinstall but still same nothing difference

Tahabey58 said:
I've seen a maximum of 5 hours of SOT since I got the phone. My sot time is very short when I see other people's sot times. I always use the phone with the following features; +4G +always bluetooth +always location + no wifi +always sync +dolby atmos +dark mode +when i got notifications aod. Although I turned off the settings I used, I still could not do this for more than 5 hours.
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Does your battery run out by the end of your typical workday? Do you have to charge it during the day everyday, or can you get to the charger comfortably when going to sleep at night? SOT by itself isn't a very good metric when seen in isolation.

enigmaamit said:
Does your battery run out by the end of your typical workday? Do you have to charge it during the day everyday, or can you get to the charger comfortably when going to sleep at night? SOT by itself isn't a very good metric when seen in isolation.
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In a day average I have 4 hours screen on time and I m using in a work phone around 4 - 5 hours. That's mean every noon I m charging phone if not it finish before leave work.

DS1000RR said:
I use WhatsApp endlessly with friends and family every day and I get nothing remotely like that drain....
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Are you mainly on Wi-Fi or mobile network? OP is on a building site so most likely on mobile network most of the day

dezborders said:
Are you mainly on Wi-Fi or mobile network? OP is on a building site so most likely on mobile network most of the day
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I always using mobile network 4G signal is %75

Tahabey58 said:
In a day average I have 4 hours screen on time and I m using in a work phone around 4 - 5 hours. That's mean every noon I m charging phone if not it finish before leave work.
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So your battery level goes to 20% or below by every noon? Sheesh, that is indeed potato battery life...
But your screenshot suggests a pretty good standby time, nearly 11 hours usage and 72% remaining...
Maybe post the battery usage screenshot once your battery dips below 20% so we can try to pinpoint the issue?

enigmaamit said:
So your battery level goes to 20% or below by every noon? Sheesh, that is indeed potato battery life...
But your screenshot suggests a pretty good standby time, nearly 11 hours usage and 72% remaining...
Maybe post the battery usage screenshot once your battery dips below 20% so we can try to pinpoint the issue?
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Actually my battery level around %50 in noon. For example this screen shot is today after noon. In noon was %100

I am 90% sure that your battery drain is caused by the mediocre 4G signal which is used for internet at all times. A lot of power is basically being allocated to get a better signal and thus while you use WS all the time, your batt drains FAST. If you happen to have Wi-Fi for a day or two and the signal is maxed out, the battery will surely last longer. Generally speaking though, you cannot compare other peoples SOT to yours as most people do not use WS as much as you, nor 4G at all times.
There might be some other extra settings that could be altered to improve battery, like:
adaptive battery ON
enhanced processing OFF
location OFF
background data OFF
resolution to FHD
background usage limit to put rarely used apps to sleep
NFC OFF
nearby device scanning OFF
And of course the last version of android 11, as it seems A12 is not yet worthy or ruling the S21U. Sadly I have a feeling that Samsung might not fix A12 for the S21U as they are now releasing the S22. Hope I'm wrong.

The Big Battery drainers:
Screen - If you have manually set it high - Try Auto
Mobile Signal - Nothing you can do if its poor - unless possibility of WIFI
Location - Always On is a no no if you can help it - try use when app open only.
Background Data - Turn off for apps which its not reqd .
Also Since Android 12 I also seem to get lower SOT although my phone battery has been same since android 11. Im not sure if they changed the way they show/measure SOT now.