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I am at "1d 3h 26m 36s since unplugged" and sitting at 73% battery, which is probably better than I have ever seen.. the 2 changes I made were
a) removing Home++ so I could try ADWLauncher (this was just for kicks)
b) as a consequence of removing Home++, my home screen widgets were removed, and I chose not to re-add most.
This made me wonder about widgets... ie I realized that I never see any widgets listed when I look at the battery consumption stats??
I was wondering if maybe widgets were "absorbed" into the Phone Idle or Cell Standby stats? (ie. they were run too close to the OS to be separated out by the battery use routine?)
EDIT: all of my searches kept returning widgets that reported battery status, instead of the info described above
It makes sense that when something is constantly updating itself it is constantly using battery, no?
JAguirre1231 said:
It makes sense that when something is constantly updating itself it is constantly using battery, no?
Click to expand...
Click to collapse
Did you even bother to read what he was asking? Did you even read the TITLE?
He's asking if it gets reported, recorded, if he can somehow look up how much battery they are using. He never once suggests anything close to asking if they use battery. Actually, he clearly points out that they DO and he wants to be able to see how much.
As for OP, don't know. What are you using to see battery history? In Spare Parts I see nothing like this, and I would assume that they use quite a lot, also depending on how often you have them set to update, etc.
r3s-rt said:
Did you even bother to read what he was asking? Did you even read the TITLE?
He's asking if it gets reported, recorded, if he can somehow look up how much battery they are using. He never once suggests anything close to asking if they use battery. Actually, he clearly points out that they DO and he wants to be able to see how much.
As for OP, don't know. What are you using to see battery history? In Spare Parts I see nothing like this, and I would assume that they use quite a lot, also depending on how often you have them set to update, etc.
Click to expand...
Click to collapse
I read it and to me it sounded like he was wondering if they used more battery. So, I DID read it, just misunderstood.
In my tiny brain, it sounded like he was wondering if it had been reported that widgets use more battery.
I made a mistake, it is perfectly acceptable to do so. Part of life is making said mistakes and learning from them.
And before anyone says something, I do indeed have a tiny brain, around the size of a raisin.
Anyways, back on topic. If they are kept anywhere I would be willing to bet they are grouped with "Cell Standby".
JAguirre1231 said:
If they are kept anywhere I would be willing to bet they are grouped with "Cell Standby".
Click to expand...
Click to collapse
That's as far as my small brain got as well. Alas,(if that is the case) that would make it tough to ferret out the "expensive" (in terms of battery usage) widgets
Well, you can kinda at least group by simple logic. Which ones use most memory? Which ones update most often? You won't get numbers, but you'll at least be able to weed out that one widget that takes 6 battery every 30 minutes.
Sent from my HTC Magic using the XDA mobile application powered by Tapatalk
zim2dive said:
That's as far as my small brain got as well. Alas,(if that is the case) that would make it tough to ferret out the "expensive" (in terms of battery usage) widgets
Click to expand...
Click to collapse
As the poster above me said, group it by logic. Things like Twicca's widget will use the least amount of power (However, Twicca won't) because all it does is launch different parts of the app. Then there are things like Beautiful Widgets which check the weather at a set amount of time. Using this example (and if these are the only widgets on your home screen), we would want to remove Beautiful Widgets to save battery before we remove the Twicca Widget.
Likewise, if we want to save battery we can have these widgets update less often.
Hey people,hows it going?
I have decided to create this thread to help people who arent very happy with their battery life pre/after the 2.1 update.
Aighty guys lets see : The improvements in 2.1 are VERY awesome if you combine it with things to make it total ownage.
Battery Life : Mine lasts 12h with very heavy usage, without usage it can last more than 48h...
Updated since sunday night so i got more than enough experience with it.
If you got bad battery life you can do followings :
1)Root + SetCPU : Lower the "Minimum" quantity so the CPU would idle very lowly and so you get more battery life ,i reccomend getting 245 there (This phase can be dangerous,if you dont know what you're doing ,skip this one)
2)Use Task Manager Pro : Shut down apps that eat the RAM, those who say "unused ram is wasted" , imo thats false as if you got more ram free : More battery life,better phone usage,less lags,and more space in case updates of twitter/fb etc come on ,i usually got around 105mb free always left (Excluded updates for social's & news & weather,live wall,android apps and stuff that i really need)
3)Still not fixed? Get a Battery-life-saver launcher and replace the Home one,as SE didnt work 2.1's home to good so its laggy and battery-eater.
4)Widgets?Have you got loads of news/updates widgets or apps? Try to lower the "Update rate", facebook updates as default each 5 mins,set it to around 2h or so,you dont need less than that.
5)Still pittyful? Check how much you use it, if i use my phone alot i get maybe less than 12h of battery life, but if you use it just the necesary trust me,you can get up to 3 days straight.
Battery life also depends on how much you use it.
5.1)Games specially can use loads of battery,so if you get a use of about 25% in 1 hour,thats very good battery life,so its normal.
5.2)Temperatures in battery can also go upper as you use it ,cause apps and your hand behind the phone cause heat,so you're alright if temp go up to 45ºC,which would be the safe limits. I would panic if it went up to 50ºC.
6)If you have just updated to 2.1 leave it a few days,it is quite bad at first as the system needs to update all its settings ,all its new stuff,just like when you install a new OS on a computer,it needs to "Start windows for the first time".
7)If its still very bad,then your battery might be damaged,get a new one and remember that the first 2-3 charges to take at least 8h,to make sure its lifespan is gonna be high.
In conclusion : Dont just say "My battery life sucks now", Battery depends on how much you use the phone,on how much your apps/timescape/mediascape/Social feeds/News feeds use your phone as much as gps/wifi/bluetooth of it.
Check everything you can,do everything i said and then see if ur battery is damaged or not,cause the 2.1 system didnt do worse,it actually did better than 1.6 after its perfectly settled.
Hope this helps out,take care ^
Regards
very good writeup, which launcher do you recommend?
in regards to this i believe you but it's just not happening to me
please suggest something.
my battery is awesome on standby....but as soon as i turn screen on and play for eg angry birds for 1hr it drops approx 25%. is that how it should be?
no wifi bluetooth gps etc. live wallpaper is there but i also try w/o live wallpaper. i use task killer and kill off unnecessary things
the only thing i haven't done is root and reduce cpu speed because the phone should work quite well w/o me having to do that.
My temp goes up to 43 at times. is that normal?
what am i doing wrong?
thran8 said:
very good writeup, which launcher do you recommend?
Click to expand...
Click to collapse
So far , LauncherPro did a very good job for me,there are loads of stuff you can tweak there like even from 3 to 7 homescreens, as you wish,the less the more battery so,depends on which you wish,you can select.
Also Helix Launcher is very famous for beeing able to save battery alot, tho it hasnt got so many options like LauncherPro.
If its very good battery life your searching : Helix Launcher
If you're looking for a good balanced launcher : LauncherPro
Goodluck.
law910 said:
in regards to this i believe you but it's just not happening to me
please suggest something.
my battery is awesome on standby....but as soon as i turn screen on and play for eg angry birds for 1hr it drops approx 25%. is that how it should be?
no wifi bluetooth gps etc. live wallpaper is there but i also try w/o live wallpaper. i use task killer and kill off unnecessary things
the only thing i haven't done is root and reduce cpu speed because the phone should work quite well w/o me having to do that.
what am i doing wrong?
Click to expand...
Click to collapse
25% in a hour after playing? Yes that is normal as games stress the CPU and screen brightness to max, so yes after gaming the battery does suffer a bit.
Nah if you dont want dont reduce cpu min speed.
Imo ,charge the phone completely , then right after charging , play Angry birds for 1h again and check battery. Sometimes the battery discharges faster than other times (Depends on the charge of it, if its @ 95% it will go down alot faster,unlike if its at 30%,it will go down slower. Its just a battery theory that is accurate most of the time)
So check from what % you started playing to what % you've stopped playing.
Tell me the results then.
And then i repeat,make sure you reduce facebook/twitter/email "update rate".
(More time(once in 2h not in each 5 mins) = Better cause it will access the internet less so more battery)
xtrmshadow said:
2)Use Task Manager Pro : Shut down apps that eat the RAM, those who say "unused ram is wasted" , imo thats false as if you got more ram free : More battery life,better phone usage,less lags,and more space in case updates of twitter/fb etc come on ,i usually got around 105mb free always left (Excluded updates for social's & news & weather,live wall,android apps and stuff that i really need)
Click to expand...
Click to collapse
I used to support it, till I opened my mind to those theories, so now I argued. With many reading and my own experiment, I would still argue that droid are doing best it could.
http://forum.xda-developers.com/showthread.php?t=777034
With my summary, without ATK could result in even better battery life.
http://forum.xda-developers.com/showthread.php?t=678205&page=10
Some technical statement about android memory.
HOWEVER,
To correct your statement, it's TRUE that leaving more processes behind could result in significant drain of battery, but this is due to CPU usage, not RAM.
So yes, Leaving some process which draining CPU power behind could give much worse battery life.
So IMO, it more depends on your background process, but I would say that in most situation, just leave the droid do its job
7)If its still very bad,then your battery might be damaged,get a new one and remember that the first 2-3 charges to take at least 8h,to make sure its lifespan is gonna be high.
Click to expand...
Click to collapse
You don't need that any longer. But it's true that the lifespan could be 'higher' after a few usage, but this is due to 'calibration', not the performance of the battery itself.
Imagine
real battery is 10%, android report 3%
real battery is 90%, android report 100%
so you are using only 10% to 90%, that considered 20% lose.
Li-po batteries ain't meant to be drain to the last, if you do thy won't last and you soon be needing to replace your battery, I would think that it is programmed to monitor the usage to not do that but the battery % that you see is not actually whats left on the battery itself.
I was reading a pdf ebook and the battery dropped around 35% in 2 hours :S
I'm running the battery test in the service menu at the moment to see if my battery is faulty.
I don't use a manager - i don't use setCpu and I can easily get 24 hours + since 2.1
I'm just saying .
I stream music from di.fm using wifi 8h/day.
My phone lasts about 4h so, i have to charge it 3 times/day
Now, i want to see tips how to improve this
Herr Noobien said:
I was reading a pdf ebook and the battery dropped around 35% in 2 hours :S
I'm running the battery test in the service menu at the moment to see if my battery is faulty.
Click to expand...
Click to collapse
good idea never knew battery test existed in the service menu =]
shall try it tonight
just have a look on the attached photo , i took the photo when the indicator was 15% , still i can ran the phone for another 2 or 3 hours .
I don't know for sure, but it seems to me that the display chews through more battery than before.
Could be that I'm playing games too much but I don't think so. I seem to get the same battery life on idle, but as soon as I do anything (esp. games or talking) the battery just seems to nosedive. Never noticed this before (I used to get two-three days depending on the usage now I'm down to a day or two).
I'm gonna try and do some tests over the next while (starting with flashing back to 1.6 and retesting that properly).
tipically, display (screen) accounts for 2/3s of the total battery usage
check the battery usage app (settings -> battery), you'll be amazed
then make a simple test:
reduce brightness by half and your battery will last A LOT longer
Personaly, I prefer to carry my charger than dimming the screen
.
gtrab said:
tipically, display (screen) accounts for 2/3s of the total battery usage
check the battery usage app (settings -> battery), you'll be amazed
then make a simple test:
reduce brightness by half and your battery will last A LOT longer
Personaly, I prefer to carry my charger than dimming the screen
.
Click to expand...
Click to collapse
Back,soz my internet crashed -_-
And true,the Screen uses 2/3 or even more, everytime i check it sucks around 75% or so if you use it alot.
Also @Cebees Yes thats true,thats why i sugested a task manager Cutting processes cleans ram memory but also cleans cpu usage.
True you can let the droid do its things but most of the time its not Droid who is eating the battery to death,its 3rd party apps which remain On even after usage (Like when you select a live wall and then change it,the other remains on and some walls arent very good optimized so ...if 1 Live-wall eats a bit of battery,imagine 3 or 4 ?)
Also : Gaming / GPS navigation And Wifi Navigating are the main and most power hungry tasks for a phone to do,so its normal that if you're doing any of those,the battery lasts like nothing.
One Tip : Always take ur charger with you Also take the MicroUSB->USB cable off your charger and use it while your in your car (Buy a Cigarette->USB adaptor,costs less than 10 quid) and then you can charge it while you're in your/your dad's car, that way you'll maintain the battery a bit more alive.
Also if you really think your battery just isnt up for your needs, there is a 3600mAh (Think its Called Mugen 3600 or smth)battery out there for the X10,it is kinda bulky but it doubles and some times even more the life of the normal 1500mAh Stock battery.
Btw,if you want to buy a new battery and a 3600mAh one is too expensive,try to get a 2000+ one...as there was tested that up to 1800mAh arent exactly Shiny,just a very slight (Minutes)improvement over the stock 1500mAh one.
As you can see,there's loads of things that can cause a battery life to be poor
So keep on trying ^^ Im sure it will all go great.
I charged mine yesterday at morning,and i still got 67% Today,so i believe i can manage a total of 3 days straight ...and i did eventually use my phone to listen to music,put some live walls and make some calls.
Also trust me...the Launcher does make a diference,specially if you get the Helix one...i used it and my battery used to manage up to almost 5 days straight (With little use).
Oh and @Cebees : I know that the 8hour thing isnt exactly necesary today , but eventhought they say its not ,i believe i've been told by someone who knows about this that its good for the battery to be totally maxed in the first charges and then left to total emptyness(if possible until phone shuts down or is about to) that way it does calibrate (As you said before) and it does also maximise its life (Technically,i could be wrong , but my always done that with my wife's and daughter's phone and they always worked like a charm and trust me ,my daughter cant get her hands off her phone -_-)
Regards
xtrmshadow said:
Hey people,hows it going?
I have decided to create this thread to help people who arent very happy with their battery life pre/after the 2.1 update.
Aighty guys lets see : The improvements in 2.1 are VERY awesome if you combine it with things to make it total ownage.
Battery Life : Mine lasts 24h with very heavy usage, without usage it can last more than 48h...
Updated since sunday night so i got more than enough experience with it.
If you got bad battery life you can do followings :
1)Root + SetCPU : Lower the "Minimum" quantity so the CPU would idle very lowly and so you get more battery life ,i reccomend getting 245 there.
2)Use Task Manager Pro : Shut down apps that eat the RAM, those who say "unused ram is wasted" , imo thats false as if you got more ram free : More battery life,better phone usage,less lags,and more space in case updates of twitter/fb etc come on ,i usually got around 105mb free always left (Excluded updates for social's & news & weather,live wall,android apps and stuff that i really need)
3)Still not fixed? Get a Battery-life-saver launcher and replace the Home one,as SE didnt work 2.1's home to good so its laggy and battery-eater.
4)Widgets?Have you got loads of news/updates widgets or apps? Try to lower the "Update rate", facebook updates as default each 5 mins,set it to around 2h or so,you dont need less than that.
5)Still pittyful? Check how much you use it, if i use my phone alot i get maybe less than 12h of battery life, but if you use it just the necesary trust me,you can get up to 3 days straight.
Battery life also depends on how much you use it.
6)If you have just updated to 2.1 leave it a few days,it is quite bad at first as the system needs to update all its settings ,all its new stuff,just like when you install a new OS on a computer,it needs to "Start windows for the first time".
7)If its still very bad,then your battery might be damaged,get a new one and remember that the first 2-3 charges to take at least 8h,to make sure its lifespan is gonna be high.
In conclusion : Dont just say "My battery life sucks now", Battery depends on how much you use the phone,on how much your apps/timescape/mediascape/Social feeds/News feeds use your phone as much as gps/wifi/bluetooth of it.
Check everything you can,do everything i said and then see if ur battery is damaged or not,cause the 2.1 system didnt do worse,it actually did better than 1.6 after its perfectly settled.
Hope this helps out,take care ^
Regards
Click to expand...
Click to collapse
Something bothers me here. During your intro, you say with "very heavy" usage, you get 24 hours battery. Then. In step 5, you say that if you use your phone alot, you get maybe less than 12 hours usage. I dont get it. :-S
Sent from my X10i using Tapatalk
lawless_benji said:
Something bothers me here. During your intro, you say with "very heavy" usage, you get 24 hours battery. Then. In step 5, you say that if you use your phone alot, you get maybe less than 12 hours usage. I dont get it. :-S
Sent from my X10i using Tapatalk
Click to expand...
Click to collapse
lol ups,yeah the 24h thing is a mistake,ima correct that.
Thanks ^
xtrmshadow said:
lol ups,yeah the 24h thing is a mistake,ima correct that.
Thanks ^
Click to expand...
Click to collapse
Cool! No problem!
Sent from my X10i using Tapatalk
My battery life got worse on 2.1.
On 1.6 I would unplug my phone at 6:20 am and listen to music for an hour then I would mess with my phone a little bit between 7:20 and 2:15. Then after that I would listen to music for another hour while surfing facebook. By time I get home at 3:20 I'm down to 60 percent. But if I do that on 2.1 by time I get home I'll be at 30 percent. Also I have juice defender ultimate that shuts off my 3g everytime the screen is off.
Sent from my X10i using XDA App
http://www.appbrain.com/app/autokiller-memory-optimizer/com.rs.autokiller
I'd prefer this one rather than auto task killer
a bit friendly for droid, except chuck norris one.
I just downloaded spare parts to see what was eating my battery and it said HTC Sense. Is there anything I can do about that???
if you root, yes.
Otherwise, chances are if you're getting bad battery life, it's not actually Sense that's causing it. And I think spare parts only checks what's been taking your battery since it was installed, so if you just installed the app, of course sense will take the most power, since it's always running. But in general, sense doesn't take much power itself. The widgets do, depending on how often you turn the screen on and how often you have them update.
I'm rooted. So are you suggesting not using any widgets?
jahovah said:
I'm rooted. So are you suggesting not using any widgets?
Click to expand...
Click to collapse
no, not at all what I'm saying.
What kind of battery life are you getting? Perhaps you're expecting too much? With moderate use in good service areas (some gaming, 50+ texts, a few phone calls, some web browsing, etc.), you should easily be able to get a full work day out of your battery. I know mine has lasted upwards of 36 hours in good service areas (much less with poor service)
Well I use the tunein app while at work and in 2hrs in goes from about %100 to %20
Ok, on my epic, if i use anything that has to do with touchwiz(touchwiz launcher, touchwiz widgets, etc) in "battery use" it uses major battery. I use launcher pro as it doesnt drain battery and it lasts much longer. So yes, HTC Sense is using your battery.
tatonka_hero said:
And I think spare parts only checks what's been taking your battery since it was installed, so if you just installed the app, of course sense will take the most power, since it's always running.
Click to expand...
Click to collapse
That's incorrect, Spare parts is just a shortcut to menus you can access from the dialer with codes. So the info has nothing to do the app, and is based on phone usage, not since time installed. Hope this helps.
Sent from my non-rooted, stock Epic.
I'm running into a strange issue where my tablet will be running fine then all the sudden battery life will start to suck and when looking at my batter usage it shows "Android OS" will show something like 70% of usage where normally display and wifi are well above that on the list.
I don't know what Android OS is so I'm looking for an app to give me a good granular view of what is running and how much of the CPU it is using. A battery usage app that gives a more complete list of battery usage by app would also be helpful. Spare parts has this functionality but it force closes when I try to use it.
Anyone else having this drain or have a good app for tracking app/battery usage?
I've used BetterBatteryStats from the Market ( https://market.android.com/details?id=com.asksven.betterbatterystats ) Though not free it helped me find the app that was eating my battery. My phone would drop to 30-40% in a day with little or no use. Now with the same use it at 70-80% so I can go 2 days easy unless I use the phone alot.
According to the reviews for this app is is apparently available free for XDA members. Any idea where to find this (or another app that the review might be referring to)?
by Karam– August 24, 2011Spam
"Don't bother yourself. An upgraded free app is at xda site. Developer answers vaguely. Also it has bugs."
I use SystemPanel. With the long battery life of these tablets (and the fact that the screen chews through the battery faster than anything else for me) I keep it monitoring at all times and every now and then check up on what's taking the battery.
I can't remember if I purchased this or not, I don't believe I did but could be wrong. I am pretty sure there's a free version of it.
Battery monitor widget all the way
It seems that the battery drain on my newest N7 (RMA'd first one) is waay worse than on the other, I'll attach some screen shots of what I mean.. it may be just the WiFi is using a lot more than the other's :S I left it 4 hours alone with WiFi and the battery drained 20+ % which even with WiFi on seems excessive does it not? Is it possible I got one with a faulty WiFi radio? I will be testing tomorrow (or maybe tonight) to see battery drain with WiFi turned off to compare, because it also seemed to drain fast when I was just out and about with WiFi off :/ worried I have bad battery, deep sleep isn't working right (it is going into deep sleep or at least thinks it is from looking at cpuspy), or faulty WiFi... or just too early to judge XD has anyone noticed battery improve over time ? I forget if I did was a month ago I got the original
BTW first screen shot was taken pretty much right as I was leaving for work, so you can compare the battery drain there..
Sent from my Nexus 7 using xda app-developers app
I doubt it's a bad wifi radio, its probably an app that is syncing like crazy in the background.
I'm currently watching the MediaServer app use a disproportionate amount of battery (14% and rising). I deleted a number of images which must of kicked in the scanner which must be very inefficient.
I also noticed my N7 become very slow at the same time.
Possibly you downloaded a large amount of images/music/etc before putting your device to sleep...
Sent from my Nexus 7 using Tapatalk 2
Toast95135 said:
I doubt it's a bad wifi radio, its probably an app that is syncing like crazy in the background.
Click to expand...
Click to collapse
I really wish I could figure out why maps keeps starting a process.. can you check to see how many instances of maps there are ? In particular one running Prefetcherservice.. as for the other comment, media server is sitting at 6%, android is at 14%, and screen at 67%.. though I did copy a bunch of songs and pictures over after the RMA, is there a way to fix these or should I delete them to see if it gets better ?
Sent from my Nexus 7 using xda app-developers app
Sigh, I might just have a bad battery, or preferably poorly calibrated, since another hour of use, just browsing and such, and I'm down 20% more -_- hope I don't have to RMA again
Sent from my Nexus 7 using xda app-developers app
As a side question.. how hot does your tablet get under normal use? Mine has been heating up quite a bit in the battery section i think with just average on browser use :/
noneabove said:
As a side question.. how hot does your tablet get under normal use? Mine has been heating up quite a bit in the battery section i think with just average on browser use :/
Click to expand...
Click to collapse
Nothing you've mentioned sounds even the slightest bit out of the ordinary. I know a person who thinks they are always sick is a hypochondriac so is someone who always thinks there is something wrong with their computing device a hypo-com-driac?
findmike said:
Nothing you've mentioned sounds even the slightest bit out of the ordinary. I know a person who thinks they are always sick is a hypochondriac so is someone who always thinks there is something wrong with their computing device a hypo-com-driac?
Click to expand...
Click to collapse
Bahaha good one I dunno, the problem is that this is literally my fourth N7 since the other three allll suffered from major screen lifting, so maybe I am looking for something wrong just so i can make sure it's perfect... Though I do think the battery life is pretty weak, I think I may have figured SOMETHING out, the only difference between this and my original is that my original had a huge section of the map of my area downloaded, and since I did that maps hasn't started any additional processes.. so good sign ? maybe ? haha
noneabove said:
Bahaha good one I dunno, the problem is that this is literally my fourth N7 since the other three allll suffered from major screen lifting, so maybe I am looking for something wrong just so i can make sure it's perfect... Though I do think the battery life is pretty weak, I think I may have figured SOMETHING out, the only difference between this and my original is that my original had a huge section of the map of my area downloaded, and since I did that maps hasn't started any additional processes.. so good sign ? maybe ? haha
Click to expand...
Click to collapse
Yeah this might be a good time to stop looking for trouble and just enjoy the tablet for a while. I drop mine on the charger in the morning and don't ever really think about the battery other than that. Whatever the battery stats say now they won't say in a week and they won't say after you flash to a different ROM. If you have wifi on apps will sync and the tablet will loose it's charge. I'm never far enough away from an outlet to make it much of a concern. So maybe just take a breather, install the Angry Birds and have some fun for a bit. Eventually we'll have ROM's and kernels that make this thing sip electricity but for now I get the few hours a day I need out of it on one charge so I'm set.
findmike said:
Yeah this might be a good time to stop looking for trouble and just enjoy the tablet for a while. I drop mine on the charger in the morning and don't ever really think about the battery other than that. Whatever the battery stats say now they won't say in a week and they won't say after you flash to a different ROM. If you have wifi on apps will sync and the tablet will loose it's charge. I'm never far enough away from an outlet to make it much of a concern. So maybe just take a breather, install the Angry Birds and have some fun for a bit. Eventually we'll have ROM's and kernels that make this thing sip electricity but for now I get the few hours a day I need out of it on one charge so I'm set.
Click to expand...
Click to collapse
You think the battery life will get much better than what it is? My only other android experience is my HTC Desire Z which has a horrible battery as it is so it didn't improve much at all with custom roms
Speaking of improved life through ROMs and kernels, have you noticed any kernel providing particularly better battery life ? I'm on trinity right now, no voltage changing, but underclocked to 1.1 ghz from 1.3
Factory reset, see if the problem continues. That's the only way decide if it's a HW problem.
And my N7 uses effectively 0% battery in standby, it was off the charger yesterday for 6 hours and when I started playing around it was still at 99%. I turn off wifi on screen off, however.
Use http://forum.xda-developers.com/showthread.php?t=1179809 to find out what's waking up your phone, the apk is in the second post. Install, charge it up, unplug, leave for 4 hours idle then look at partial wakelocks and alarms.
I saved quite a bit of standby time by disabling location services and Facebook.
If your not using nfc that could save battery?
Sent from my Nexus 7 using XDA Premium HD app
Salty Wagyu said:
Use http://forum.xda-developers.com/showthread.php?t=1179809 to find out what's waking up your phone, the apk is in the second post. Install, charge it up, unplug, leave for 4 hours idle then look at partial wakelocks and alarms.
I saved quite a bit of standby time by disabling location services and Facebook.
Click to expand...
Click to collapse
^ do that
I used Better Battery Stats to figure out Google Maps was causing wakelocks. I cleared data in the maps app and now my 7 idles without much battery drain at all.
northbridge said:
^ do that
I used Better Battery Stats to figure out Google Maps was causing wakelocks. I cleared data in the maps app and now my 7 idles without much battery drain at all.
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Click to collapse
Haha I actually just read your post in the kernel thread about this and immediately cleared map data, now I'm about to unplug and see what happens!
Sent from my Nexus 7 using xda app-developers app
noneabove said:
Haha I actually just read your post in the kernel thread about this and immediately cleared map data, now I'm about to unplug and see what happens!
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
:good:
If that doesnt work for you, Better Battery Stats should be able to tell you what app is causing the drain.
northbridge said:
:good:
If that doesnt work for you, Better Battery Stats should be able to tell you what app is causing the drain.
Click to expand...
Click to collapse
Well, left it for an hour on standby with wifi on, 0% drain, let's see how rest of day goes !
northbridge said:
:good:
If that doesnt work for you, Better Battery Stats should be able to tell you what app is causing the drain.
Click to expand...
Click to collapse
So it seems like partial wakelock is mostly audioout_2 which i assume comes from me playing a game with music amongst other things?
Alarms says com.google.android.googlequicksearchbox has 50 wakeups, and maps has 38 :S why does maps keep trying to kill me?! and what is the googlequicksearchbox doing waking the tablet up...
Wlan_Rx_wake seems to be the culprit of semi bad battery. Is there a way to prevent the tablet from waking up all the time? Maybe just unsync or turn off WiFi instead?
noneabove said:
So it seems like partial wakelock is mostly audioout_2 which i assume comes from me playing a game with music amongst other things?
Alarms says com.google.android.googlequicksearchbox has 50 wakeups, and maps has 38 :S why does maps keep trying to kill me?! and what is the googlequicksearchbox doing waking the tablet up...
Click to expand...
Click to collapse
When my battery drain was bad I had something like 250+ wakeups from maps under the alarms section in only a few hours off the charger and Maps was showing up as the most common reason for partial wakelocks.
I think AudioOut_2 is normal - Im not sure what it does though. Im now at 8+ hours of standby with 99% battery. Under alarms im showing 138 Maps wakeups and 76 from google quick search box. My drain is all gone now though so i assume this is within normal range. The better battery stats thread and a few other threads on XDA have detailed descriptions of the different battery draining wakelocks and possible remedies. Not all wakelocks are bad though.