Related
Straight from Dianne Hackborn, Google Android Framework Engineer:
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away.
Click to expand...
Click to collapse
Is this what we're doing when we select "wipe battery stats"?
Sent from my HTC Incredible S
Interesting find. Thanks OP.
itsbeertimenow said:
Is this what we're doing when we select "wipe battery stats"?
Sent from my HTC Incredible S
Click to expand...
Click to collapse
Ye.
Sent from my GT-I9100 using xda premium
If you flash a new kernel, every statistic in battstats will be wrong. Its best to get rid of this file since your phones power requirements are now totally different.
Sent from my Hercules using XDA App
jordanishere said:
If you flash a new kernel, every statistic in battstats will be wrong. Its best to get rid of this file since your phones power requirements are now totally different.
Sent from my Hercules using XDA App
Click to expand...
Click to collapse
The point in the op is that it doesnt matter. Its just a do nothing log file.
Ive read the notes to delete it after flashing..etc..etc...and i do, but I dont see a difference in it helping if i do... The difference i notice depends on the kernal i flash and/if i run a script.
Sent from my SGH-T989 using xda premium
Oh thank God. I'm so tired of battery calibration.
Sent from my SGH-T989
Has anyone tried the link in that post to what HTC says to do:
http://forum.xda-developers.com/showthread.php?t=712990
o also help with Battery Life you can do these steps exactly: 1) Turn your device ON and Charge the device for 8 hours or more 2) Unplug the device and Turn the phone OFF and charge for 1 hour 3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double, we have tested this on our devices and other agents have seen a major difference as well.
Click to expand...
Click to collapse
teh_lorax said:
Has anyone tried the link in that post to what HTC says to do:
http://forum.xda-developers.com/showthread.php?t=712990
Click to expand...
Click to collapse
"Almost duble" bulls**t ...
Sent from my GT-I9100 using xda premium
Thanks for the post. You learn something new everyday.
http://m.androidcentral.com/wiping-...gle-engineer?utm_source=ac&utm_medium=twitter
Wtf??
Sent from my blazed Juggernaut!
duh!
no body wipes the battery stats to improve battery life
we wipe battery stats to reset erroneous battery readings
that such "google engineer" is hanging out with the wrong cloud of people
AllGamer said:
duh!
no body wipes the battery stats to improve battery life
we wipe battery stats to reset erroneous battery readings
Click to expand...
Click to collapse
exactly...everytime i flash a rom, the stats goes bonkers...where my battery life actually is increasing...lol
wipe it and it's clean again and correct.
After reading this.......just removed the battery caliberation app from my phone
The only time you need to delete the battery stats file or use a battery config app is when you change your battery out for a higher capacity one. If not you will get incorrect readings.
Sent from my SGH-T989 using xda premium
DensoYamaha41 said:
The only time you need to delete the battery stats file or use a battery config app is when you change your battery out for a higher capacity one. If not you will get incorrect readings.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Apparently you don't even have to do that. It will get erased automatically when the phone thinks the battery is full.
teh_lorax said:
Apparently you don't even have to do that. It will get erased automatically when the phone thinks the battery is full.
Click to expand...
Click to collapse
+1 it makes a new one everytime u charge ur phone and turn it on
Sent from my SGH-T989 using xda premium
dupes merged
good info i guess lol
AllGamer said:
duh!
no body wipes the battery stats to improve battery life
we wipe battery stats to reset erroneous battery readings
that such "google engineer" is hanging out with the wrong cloud of people
Click to expand...
Click to collapse
But he says logged stats are only logged until a full charge.. Therefore wouldn't your stats only be erroneous until you charge your phone? So that means it is not necessary to wipe battery stats, because it will automatically be corrected either way, right?
Sent from my SGH-T989 using xda premium
I must be doing either something really wrong or else...
My battery last me a little over one hour on standard battery (original rom+root) and that's me even using lean kernel. I've seen on forum some people were able to get as much as four hours of their screen why is it with my phone I'm only about to do so little?
What's the best so to see what's going on with my phone, who eats my battery, which apps are doing something that they shouldn't.
It really is killing me, I want to be able to enjoy my phone longer.
Sent from my Galaxy Nexus using Tapatalk 2
a1exus said:
I must be doing either something really wrong or else...
My battery last me a little over one hour on standard battery (original rom+root) and that's me even using lean kernel. I've seen on forum some people were able to get as much as four hours of their screen why is it with my phone I'm only about to do so little?
What's the best so to see what's going on with my phone, who eats my battery, which apps are doing something that they shouldn't.
It really is killing me, I want to be able to enjoy my phone longer.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
download a battery monitor app from the play store
k786 said:
download a battery monitor app from the play store
Click to expand...
Click to collapse
Which one in particularly?
Sent from my Galaxy Nexus using Tapatalk 2
a1exus said:
Which one in particularly?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
BetterBattery stats works
Settings > Battery > History details (touch the graph)
Battery shows what apps use the battery, history details shows signal and other stuff.
gnustomp said:
Settings > Battery > History details (touch the graph)
Battery shows what apps use the battery, history details shows signal and other stuff.
Click to expand...
Click to collapse
Yeah, over there it says that screen is used 50% of battery and it was roughly a little over one hour, I can attach screenshots if that helps..
Sent from my Galaxy Nexus using Tapatalk 2
rhed said:
BetterBattery stats works
Click to expand...
Click to collapse
Just purchased that app, will give it a go.
Sent from my Galaxy Nexus using Tapatalk 2
a1exus said:
Yeah, over there it says that screen is used 50% of battery and it was roughly a little over one hour, I can attach screenshots if that helps..
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
It is normal that the screen uses a lot of juice. What is more interesting is which apps are on 2nd and 3 spot. Do post screenshots if you can.
Swype'ed on my CM10 Galaxy Nexus
Herman76 said:
It is normal that the screen uses a lot of juice. What is more interesting is which apps are on 2nd and 3 spot. Do post screenshots if you can.
Swype'ed on my CM10 Galaxy Nexus
Click to expand...
Click to collapse
I will post pictures later, but here is quick overview:
#1 is _ALWAYS_ : Screen
#2, #3, #4 and #5 is: Phone idle, Voice calls, Android OS, Cell standby (not in order, so i took example from several screen shots that I saved)
do you have a terrible signal where you're at? does it jump between LTE (i see you have verizon least based on your image under your name) and 3g alot?
Zepius said:
do you have a terrible signal where you're at? does it jump between LTE (i see you have verizon least based on your image under your name) and 3g alot?
Click to expand...
Click to collapse
to save power I completely switched over 3G (by turning off 4G (LTE))
on the top of that whenever I can I always switch WiFi on to switch to WiFi instead of 3G and whenever WiFi is not available I always turn it off.
and here is a kicker: I also use Ultimate Juice Defender (w/ pretty aggressive settings (turning data on only every 15 minutes)
please see attached dump from BetterBatteryStats
Better battery stats Apk is free for xda members, use search. BTW, it sounds like your battery is done. Get an extended OEM battery. They're really cheap on Ebay.
Sent from my Galaxy Nexus using xda premium
Soldier 2.0 said:
Better battery stats Apk is free for xda members, use search. BTW, it sounds like your battery is done. Get an extended OEM battery. They're really cheap on Ebay.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Why is my battery "done" ? I blame Sandy as before that it was fine, I'd easily do close to 2h of Screen time (at least 1h30m), now after Sandy due to reception that I'm getting right now I think that's why I'm getting so little now..
Seems like you got it all figured out then.
Sent from my Galaxy Nexus using xda premium
Man, I'm not from the US, but if Sandy came by my town, i guess my screen on time would be the least of my worries. Lol, can you imagine what damage it may have done (more than likely) to the cell towers and radio equipment?
Sent from my i9250
bk201doesntexist said:
Man, I'm not from the US, but if Sandy came by my town, i guess my screen on time would be the least of my worries.
Sent from my i9250
Click to expand...
Click to collapse
it's not like Sandy moved in or anything... Sandy is already gone and people (including me) heavily rely on their phones to communicate with others and so am I, so I need my phone more then I did before and if it's dying half way through the day that's a problem for me.
Soldier 2.0 said:
Seems like you got it all figured out then.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
heh, I wish)) if I did, I wouldn't post question here. You on another hand seems to jumping the gun way too quickly with determination of battery "dead", I do appreciate any input but this isn't exactly helping me..
a1exus said:
heh, I wish)) if I did, I wouldn't post question here. You on another hand seems to jumping the gun way too quickly with determination of battery "dead", I do appreciate any input but this isn't exactly helping me..
Click to expand...
Click to collapse
Your awake / screen on ratio looks pretty nutty to me. Basically your phone was awake for 4 hours, and your screen was on for 1 hour. Titaniumbackup kept your phone awake for 38 minutes; why is that?
Sign out of any google services you don't use like Google Talk and / or Google+.
Turn off location services and only turn it on when you need to. It's easy to toggle this by placing a Location services shortcut on your homescreen. This, for me, has had the largest impact on my idle battery usage. With location on, batt would drain around 2 to 3% per hour. Now it takes 3 hours idle to take the battery down 2%.
skadebo said:
Your awake / screen on ratio looks pretty nutty to me. Basically your phone was awake for 4 hours, and your screen was on for 1 hour. Titaniumbackup kept your phone awake for 38 minutes; why is that?
Sign out of any google services you don't use like Google Talk and / or Google+.
Turn off location services and only turn it on when you need to. It's easy to toggle this by placing a Location services shortcut on your homescreen. This, for me, has had the largest impact on my idle battery usage. With location on, batt would drain around 2 to 3% per hour. Now it takes 3 hours idle to take the battery down 2%.
Click to expand...
Click to collapse
I think Titanium Backup was doing backup and then uploading it to Dropbox (happens once or twice a week at night)
Google Talk and/or Google+ is closed (and even cleared from recent task upon completion of using them)
location service I use, I'm sharing my location with some other people, but i'll give that a shot to test it.
thank you for your suggestions)
Hi guys. Thursday last week I got a Note II, wonderful device. I see people stating that it eats 1% battery in 10-15 minutes, but for me, it eats 1% in 1-3 minutes, when in use. I am running MonxIfied Sent and RedPill 0.10 kernel with stock speed. It consumes very little battery when sleeping, but it is in use that is the problem. I will add some pics of battery usage. What's wrong?
Sent from my GT-N7100 using Tapatalk 2
Bump
We'll it's gonna drain battery if you're using it... what's your screen brighness?
CitizenLee said:
We'll it's gonna drain battery if you're using it... what's your screen brighness?
Click to expand...
Click to collapse
I normally have it on auto or about 50%
InfinityFTW said:
I normally have it on auto or about 50%
Click to expand...
Click to collapse
To be honest it seems quite normal. Keep in mind it's a big screen plus if you have mobile data or wifi on then the phone is likely to be doing stuff in the background when the device is awake.
What does the partial wakelocks in better battery stats look like?
EDIT: Eh, never mind, if it consumes very little battery when sleeping it's probably not a wakelock...
There's a pretty steep drop there in the third screenshot, looks strange. Wonder what happened there!
Kiahnlliya said:
What does the partial wakelocks in better battery stats look like?
Click to expand...
Click to collapse
The OP is asking about battery drain when the screen is ON.
Partial wakelocks should be of no concern really, unless his battery was draining fast when screen is off.
EDIT: Haha, just saw you realised
---------- Post added at 09:31 PM ---------- Previous post was at 09:26 PM ----------
Kiahnlliya said:
There's a pretty steep drop there in the third screenshot, looks strange. Wonder what happened there!
Click to expand...
Click to collapse
Wifi seems to go off at the point, so possibly phone searching for a mobile data connection?
That's a wild guess though
Yeah these are the problems ive been getting..returning my phone with warranty if they give me a new battery or something..but i get average battery life on screen stand by sucks alot.
Austin3161337 said:
Yeah these are the problems ive been getting..returning my phone with warranty if they give me a new battery or something..but i get average battery life on screen stand by sucks alot.
Click to expand...
Click to collapse
From the other thread, your problems do sound a bit different mate
I'm having a little theory. I have also had an iPhone 4, which also had high battery drain. Could the problem be my wifi/router?
Sent from my GT-N7100 using Tapatalk 2
InfinityFTW said:
I'm having a little theory. I have also had an iPhone 4, which also had high battery drain. Could the problem be my wifi/router?
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
Interesting theory. Can't say I know for sure but I guess it's plausable if it has poor signal or drops out often.
Have you tired chaning the channel on it? I do that for my Xbox 360 sometimes if signal is crap.
You could also try flashing a different modem on your Note 2 to see if that improves things. I remember on my old HTC Hero and Desire HD changing the radio (modem) could often improve wifi / mobile data reception and as a result improve battery consumption.
Again, I'm not expert on this so just guessing!
72% with one hour screen on
13% drop when you used recovery
=> after 1 hour screen on 85 percent
=> after 6 hours screen on, 10% battery
=> your phone doesn't have a problem
Sent from my Note II using Tapatalk
No problemo here anymore. Flashed WanamLite and perseus kernel. Bam!
Sent from my GT-N7100 using Tapatalk 2
InfinityFTW said:
No problemo here anymore. Flashed WanamLite and perseus kernel. Bam!
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
Haha nice, glad you're happy with it now!
I was going to try Wanam today actually. Been on Omega since v6.0 and fancy a change
Hi XDA members and developers. I just got my Samsung Galaxy Note 2 International Version. 3 weeks old currently. I don't want to void any warranty itself. Is there any way folks? I lose 2% and hour just standby. and 10% and hour in Wi-Fi use.
WiFi - Moderate Use
SMS - Moderate Use
Cellular Data - OFF and GSM Only mode
PowerSaving Mode
Sync Off
Carrier - Sun Cellular Philippines
I posted my current device condition and status and downloaded application.
Please help me. I believe that SGN2 is a beast when it comes to battery.
Or If root is the solution. Give me tips.
There is nothing wrong i can see in your image 1. You have kept screen on almost half the time. it was even not fully charged (appr 95%) and still after 2 hrs of use it is about 83%. 12 % use with nearly 1 hr screen on time is normal when you have poor network.
Look to network, hardly you had 5-10 min good network, otherwise all the time you have it poor coverage, which is most juice drainer.
Thanks dr. Ketan
dr.ketan said:
There is nothing wrong i can see in your image 1. You have kept screen on almost half the time. it was even not fully charged (appr 95%) and still after 2 hrs of use it is about 83%. 12 % use with nearly 1 hr screen on time is normal when you have poor network.
Look to network, hardly you had 5-10 min good network, otherwise all the time you have it poor coverage, which is most juice drainer.
Click to expand...
Click to collapse
Dr. Ketan thanks for that advice. I tried other carrier and it is now good and mostly green network. You're the best. I read all your posts and it is very helpful. A thanks meter to you. If ever I will root I will look to your post in How to root Galaxy note 2. Thank the doctor.
And last question. How about in my image 2 which is the stats of wakelock detector? Is that normal? the 1013? It bothers me a lot every time I look to wakelock. I know rooting can improve battery life but it's not my option right now. Thanks!!
warlycastro said:
Dr. Ketan thanks for that advice. I tried other carrier and it is now good and mostly green network. You're the best. I read all your posts and it is very helpful. A thanks meter to you. If ever I will root I will look to your post in How to root Galaxy note 2. Thank the doctor.
And last question. How about in my image 2 which is the stats of wakelock detector? Is that normal? the 1013? It bothers me a lot every time I look to wakelock. I know rooting can improve battery life but it's not my option right now. Thanks!!
Click to expand...
Click to collapse
Your wakelock are normal. Don't worry about it. As dr.ketan said your network drains more.
Sent from my GT-N7100 using Tapatalk 4 Beta
Turn off the phone.
You have kept screen on almost half the time.
There is a battery saving option in the S Pen menu.
He he. Most smartphones can never hope to drop only 10% in an hour of screen on time. My i9505 drops that much in 30 minutes.
Sent from my GT-N7100
Thanks MBariya!
MBariya said:
Your wakelock are normal. Don't worry about it. As dr.ketan said your network drains more.
Sent from my GT-N7100 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Okay sir thank you for that relieving reply. LOL God bless Sir!
Thanks
Thanks NightHawkUndead
NightHawkUndead said:
Turn off the phone.
Click to expand...
Click to collapse
I need to catch important calls from work so I don't want to turn off the phone. But anyways thanks for replying!! :good:
THanks dr.m0x
dr.m0x said:
He he. Most smartphones can never hope to drop only 10% in an hour of screen on time. My i9505 drops that much in 30 minutes.
Sent from my GT-N7100
Click to expand...
Click to collapse
Hehe! Screen on + WiFi + Poor signal. I changed my carrier and the battery life improves. Disabled all stock apps i'm not using etc. Well thanks for replying Bro! :good::laugh:
Thanks!
(InsertNameHere) said:
There is a battery saving option in the S Pen menu.
Click to expand...
Click to collapse
Yes sir already did that. Thanks anyways!:good:
As the title said, i'm looking for a kernel to improve my nexus 7 battery life. I do not play games, my most concern is improve battery life when browsing web. Anyone can help me? I'm quite busy so i don't have time to try every kernel.
Thanks in advance
stormysea94 said:
As the title said, i'm looking for a kernel to improve my nexus 7 battery life. I do not play games, my most concern is improve battery life when browsing web. Anyone can help me? I'm quite busy so i don't have time to try every kernel.
Thanks in advance
Click to expand...
Click to collapse
ElementalX 1.8 beta gives me great battery life. Here's a link to it: http://forum.xda-developers.com/showthread.php?t=2389022
thor6577 said:
ElementalX 1.8 beta gives me great battery life. Here's a link to it: http://forum.xda-developers.com/showthread.php?t=2389022
Click to expand...
Click to collapse
Thanks a lot. Gonna try that soon . BTW, how much screen on time do you get in a single charge?
stormysea94 said:
Thanks a lot. Gonna try that soon . BTW, how much screen on time do you get in a single charge?
Click to expand...
Click to collapse
Screen on time is taking about 20% instead of the 60% I used to have ( I normally have it on lowest settings). Lasts me a day without charging.
thor6577 said:
Screen on time is taking about 20% instead of the 60% I used to have ( I normally have it on lowest settings). Lasts me a day without charging.
Click to expand...
Click to collapse
Thanks again
thor6577 said:
Screen on time is taking about 20% instead of the 60% I used to have ( I normally have it on lowest settings). Lasts me a day without charging.
Click to expand...
Click to collapse
This of course is BS, a kernel can't alter the percentage the screen uses in such a ludicrous amount. But if it works for you, great :angel:
Pfeffernuss said:
This of course is BS, a kernel can't alter the percentage the screen uses in such a ludicrous amount. But if it works for you, great :angel:
Click to expand...
Click to collapse
Kernels can affect screen time in "ludicrous amount" when you overclock, use the device for a period of time, application usage, GPS, Bluetooth, and display settings etc.
thor6577 said:
Kernels can affect screen time in "ludicrous amount" when you overclock, use the device for a period of time, application usage, GPS, Bluetooth, and display settings etc.
Click to expand...
Click to collapse
No. Not in the amount you specified. Complete nonsense, with all due respect. Underclocking, undervolting, all those things will never yield your result. One hundred percent impossible.
Pfeffernuss said:
No. Not in the amount you specified. Complete nonsense, with all due respect. Underclocking, undervolting, all those things will never yield your result. One hundred percent impossible.
Click to expand...
Click to collapse
Well I don't know what to say to this. I know what my battery stats were and I wipe them (and I continue to wipe them) daily. Maybe my nexus is special. Come to think of it, it has had some problems before. Maybe this is a way for it to make up to me
thor6577 said:
...and I wipe them (and I continue to wipe them) daily
Click to expand...
Click to collapse
This, also, has no use whatsoever, FYI :angel:
Pfeffernuss said:
This, also, has no use whatsoever, FYI :angel:
Click to expand...
Click to collapse
Its true, battery stats have no effect on battery life. I wipe them across ROMS because the battery stats file can get messed up when switching ( it has happened to me before ).
thor6577 said:
Its true, battery stats have no effect on battery life. I wipe them across ROMS because the battery stats file can get messed up when switching ( it has happened to me before ).
Click to expand...
Click to collapse
No, it can't. Wiping battery stats has no influence over the battery indication whatsoever. As per Google themselves.
Pfeffernuss said:
No, it can't. Wiping battery stats has no influence over the battery indication whatsoever. As per Google themselves.
Click to expand...
Click to collapse
I never said that the battery stats file had influence over battery indication. Like in the link you provided :
Pfeffernuss said:
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
Click to expand...
Click to collapse
Pfeffernuss said:
No, it can't. Wiping battery stats has no influence over the battery indication whatsoever. As per Google themselves.
Click to expand...
Click to collapse
Interesting things happen when you wipe the cache. This is from my Nexus 7 during Video playback. Seem like the battery consumption gets attributed differently.
Exactly the same setting, ROM & Kernel, both cases I use MX Player Pro with H/W+ accleration to playback 720p videos. Only difference is in first case Screen battery consumption 83.5%, the other 57.7%.
stormysea94 said:
As the title said, i'm looking for a kernel to improve my nexus 7 battery life. I do not play games, my most concern is improve battery life when browsing web. Anyone can help me? I'm quite busy so i don't have time to try every kernel.
Thanks in advance
Click to expand...
Click to collapse
Get Elemental X 1.8 and run it at stock clocks (1.5Ghz CPU/400mhz GPU) will probably give you the best battery life. If adjusting a lot of settings when installing a kernel is a hassle to you, get Bulletproof 1.3 instead. Bulletproof have the same developer(flar2) as Elemental X, it is basically a developer optimized version of Elemental X running stock clocks & optimized for Battery life.
thor6577 said:
I never said that the battery stats file had influence over battery indication. Like in the link you provided :
Click to expand...
Click to collapse
So you wipe the file for exactly what other reason?
Pfeffernuss said:
So you wipe the file for exactly what other reason?
Click to expand...
Click to collapse
Maybe he was just wiping cache & dalvik.
Edit: Nevermind.
Pfeffernuss said:
So you wipe the file for exactly what other reason?
Click to expand...
Click to collapse
I wipe them because like I said before, the file can get messed up when switching ROMS. It got messed up on my LG phone before so I wipe just to be thorough.
Sent from my Nexus 7 using XDA Premium 4 mobile app
thor6577 said:
I wipe them because like I said before, the file can get messed up when switching ROMS. It got messed up on my LG phone before so I wipe just to be thorough.
Sent from my Nexus 7 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
How do you KNOW it's messed up?
Pfeffernuss said:
How do you KNOW it's messed up?
Click to expand...
Click to collapse
When you love a phone just like I loved my LG G2X, you know when something is wrong.
thor6577 said:
When you love a phone just like I loved my LG G2X, you know when something is wrong.
Click to expand...
Click to collapse
Thought so. Unclear answer as you don't have anything conclusive to say.
Just keep on wiping, it's highly recommended :good: