Develop Bugs

Worsening Battery life?

Over the last couple of weeks it seems like my battery has been fairing worse.
My phone was fully charged an hour ago, and I've been browsing/twittering a bit. Battery is now at 69%.
To add to this, I've had my phone on charge overnight a few times and reported full/100% when unplugged. A few mins later the charge drops to ~90%.
I'm beginning to wonder if this is a faulty battery, or a software issue?
There's not much runing in the background, just Facebook, a weather program updating every 2 hrs.
There's nothing out of the ordinary showing up on battery history either.
Thoughts?

I guess you didn't have this problem before the recent update?
I've read alot of people having problems with the battery after the latest OTA update. After the phone is fully charge the battery immediately drops faster than usual. Also, sometimes by HTC battery widget reports 96-100% even if I have charged it over night.
I don't think the draining is faster now than before, except for the foirst 5-10%.

I haven't installed the latest ota update, infact I haven't installed any updates for a while. I might change to a different Rom to see if it makes any difference.

Search threads you'll find an answer to the 90-100% issue. basically it will charge to 100%, then stop charging until it falls to 90% and then charge back up to 100% (rather than trickle charging once it gets to 100% so it will stay there). So when you unplug is after a full charge there is the gamble that you've unplugged it somewhere between 90% and 100% - but you have to wait a few minutes to find out... its so exciting - every morning I can't wait to get to the train station to check if I've guessed correctly...

Just flash a UVOC kernel on your phone

streetdaddy said:
Search threads you'll find an answer to the 90-100% issue. basically it will charge to 100%, then stop charging until it falls to 90% and then charge back up to 100% (rather than trickle charging once it gets to 100% so it will stay there). So when you unplug is after a full charge there is the gamble that you've unplugged it somewhere between 90% and 100% - but you have to wait a few minutes to find out... its so exciting - every morning I can't wait to get to the train station to check if I've guessed correctly...
Click to expand...
Click to collapse
hahah you made me laugh
i think it might be worth to drain the battery till 0% then fully recharge to recalibrate the cycle

check in spare parts to see if your phone is sleeping properly. a couple of us are having that problem, o solved it by switching of wireless location. not sure thats a longterm solution though as i am always using geolocation on my phone

I am turning phone of at night but don'ty like doing this, but I always carry my usb lead at work so I can charge up if required in emergency.

I have the same problem.
I recharged my Desire full 6 hours ago, and now I am at 38% remaining battery with moderate usage. I have the latest generic rom.
Before I got it I was reading about bad battery life, but I didn't expect it to be THIS bad. What, 8 hours, 10, 12?
Sad.

ljesh said:
I have the same problem.
I recharged my Desire full 6 hours ago, and now I am at 38% remaining battery with moderate usage. I have the latest generic rom.
Before I got it I was reading about bad battery life, but I didn't expect it to be THIS bad. What, 8 hours, 10, 12?
Sad.
Click to expand...
Click to collapse
it doesnt need to be that bad at all, when you get it setup right it will wasily last an entire day, mine suddenly changed and the life got worse but i have found a kind of solution, you need to play around with your settings.
a great saving is to switch mobile data when you are near a computer, you can still receive text messages and make calls and you will use a tiny amount of battery

Email is crucial an basic to me, just like phone calls and more then text messages (I don't need them). Just I have to be able to receive emails at any time. Still, I didn't expect imap over GSM Only (my current setting, I don't need 3G, just basic email sync) to use so much battery. This is my first cell phone to be so bad at battery :/
It's 5 days old, and people say it will get better in days... but lets see. I hope so.
By the way, "setting it up in proper way" I hope it doesn't mean turning off this and that. Because in the end I will receive a basic, phone calls, cell phone. It's not smart anymore
Edit: Since I wrote the previous post, till now, the battery dropped 5%, and now it's at 33%.

totally understand about having email on.
5% in a couple of minutes is totally wrong. gps/wifi on?, what is set to update and how frequently, weather, twitter, stocks, mail sync.
also download spare parts and see what is under partial wake usage and whether or not your desire is going to sleep when the screen is off. its the top option in the app. you want other and since boot and running and screen % and then check partial wake usage, they should be close to the same and see if anything has a large blue bar.

Wifi is off most of the time, if I turn it on it will be only to check something fast (5 minutes max at a period).
Weather updates every 1 hour
Facebook once a day
No twitter, stocks (they are checked in settings -> sync and can confirm that are disabled)
Email keeps the connection only, imap-idle
GPS is disabled, although the weather uses it at the refreshing time, to re-locate me.
Thats all I can think of.
I really use it a little (at least not as much as I would love) and I still lose so much battery.

ljesh said:
Wifi is off most of the time, if I turn it on it will be only to check something fast (5 minutes max at a period).
Weather updates every 1 hour
Facebook once a day
No twitter, stocks (they are checked in settings -> sync and can confirm that are disabled)
Email keeps the connection only, imap-idle
GPS is disabled, although the weather uses it at the refreshing time, to re-locate me.
Thats all I can think of.
I really use it a little (at least not as much as I would love) and I still lose so much battery.
Click to expand...
Click to collapse
how often is the mail sync? every 5 mins, 15?
i'd definitely download spare parts from the market it's free, the interface is a bit weird but it gives you useful stats.
it sounds like you know your stuff so i'm going to assume that you dont have bluetooth on you screen on full brightness.
what does it say in settings>about phone>battery>battery use?

The email is imap-idle. It keeps the connection all the time, and waits for email. When the server receives the email, it pushes it to the phone. But connection is kept alive all the time. Idling most of the time, but keeping it alive.
I will check the spare parts program later or tomorrow, I am tired today, long day
Bluetooth is off always, I dont need it. Really, all I need on a phone is email 24/7 (I am linux system administrator, taking care of alot of servers, I need my emails) and like 5 phone calls daily, each not longer then 1 minute (we don't talk much )) )
battery use says:
Android System 96%
CoPilot 2% (freshly installed it and tested a bit, and then terminated it)
Cell standby 2%
Uptime is 21 hours
Awake time is 10 hours
isn't that much? Like half of the time, the phone is awake :/
Edit: brightness is set at automatic

ljesh said:
The email is imap-idle. I
battery use says:
Android System 96%
CoPilot 2% (freshly installed it and tested a bit, and then terminated it)
Cell standby 2%
Uptime is 21 hours
Awake time is 10 hours
isn't that much? Like half of the time, the phone is awake :/
Edit: brightness is set at automatic
Click to expand...
Click to collapse
ok, i think we;ve found the problemo, android system at 96% is way off mine is currently at 26 and that is a bit high in my opinion. also my uptime is 7 hours and awake is 1 so thats seven to one as opposed to 2 to 1 in your case.
something is using your system resources and stopping your phone sleeping

I'm glad we got somewhere and I have to thank you for your patience in helping me with my problem.
Tonight I will reboot before I go to sleep, and will disable the email syncing. Just to see if the e-mail makes android be used 96% of the time, and tomorrow I will see the uptime and awake time.
Good idea?

ljesh said:
I'm glad we got somewhere and I have to thank you for your patience in helping me with my problem.
Tonight I will reboot before I go to sleep, and will disable the email syncing. Just to see if the e-mail maked android be used 96% of the time, and tomorrow I will see the uptime and awake time.
Good idea?
Click to expand...
Click to collapse
its my pleasure dude, what goes around comes around
i think that is a logical place to start, spare parts will give you a better idea of what is using your resources hopefully by app rather than just android system.
instead of downloading spare parts you can also type this code into the dialer
*#*#4636#*#*
and it will get you the same info

just subscribed to this thread because I'm having similer problems.
"android system" is always 49%-60%
Current uptime - 3hours 4mins
Current awake times - 2hours 37mins.
I have a feeling foursquare might be the culprit since it's ALWAYS in my running apps, even when I've not used it since boot, and shut it with task killer... an hour or so later and it's back.
Something isnt right tho. I think from a full charge I should get 24hours from my phone with moderate use.

Noodled24 said:
just subscribed to this thread because I'm having similer problems.
"android system" is always 49%-60%
Current uptime - 3hours 4mins
Current awake times - 2hours 37mins.
I have a feeling foursquare might be the culprit since it's ALWAYS in my running apps, even when I've not used it since boot, and shut it with task killer... an hour or so later and it's back.
Something isnt right tho. I think from a full charge I should get 24hours from my phone with moderate use.
Click to expand...
Click to collapse
yeah that is absolutely not normal, use spare parts and thatll tell you if it is foursquare

Battery drain with Desire on alcohol

Hi. I know there are hundreds of threads on battery usage, but I felt I have a special story behind my test.
Lately I feel that my battery life has decreased, but I would like some second opinions on the case.
It's over a month now since I received froyo OTA, and I had some suspicions that my battery life went slightly down after that. I used it more to test the new features, so its hard to really know. However, the big problems occurred a couple of weeks ago.
At a party with a friend of mine, a friends friend literally pulls my Desire out of my hand and drops it into a mug of beer! As a joke!!
He had heard me taking about my Nokia 3720 earlier and decided to test it. However, ignorant as he was, he did not see that it was A DIFFERENT PHONE I was holding!
So it took 2 seconds in the mug, and the screen went black, and the phone was dead... Or not really, I took it out and dried it of with my t-shirt, turned it on, and the screen went garbeled green on me...
Decided that it was best to leave it alone, so I took out the battery, SIM and MicroSD, dried them off, put it in my pocket and continued the party.
But I have to admit it was kindof a partypooper for me...
Well, later that night, probably 3-4 hours later when I got home, I inserted the battery and tried to turn it on.. Screen turned on with the familiar white background, and green htc logo.. and some garbeled green at the top, argh...
I took the battery out again, left all the pieces spread out on the kitchen-counter and went to bed.
The morning after (or should I say afternoon ) I looked at the phone, it seemed as it had dried out over the night. So I put in the MicroSD, SIM and battery, crossed my fingers, and turned it on. And it worked fine, like nothing had happened, phew!
But some days after, I am sure that the batterylife has decreased quite a bit, seems to not hold a normal 12-14hour day with normal use.
I did at one point post-froyo (pre-drowning) have it running for 2 full days before charging, approx. 40 hours, not very much usage though..
So, I decided to test it starting yesterday evening.
I let it drain fully (turned it on 1 time after it died, and let it die again). Charged it while turned off, and unplugged it and turned on after approx. 1 hour of full charge (green light).
Now, I have already ordered a new phone (a Streak is on its way over the North Sea as I write this . But I wanted to do the test just for the heck of it.
My girlfriend also has a Desire running Froyo, and I notice she uses her phone WAY MORE for gaming and stuff, and only charges a little more frequent than me.
They are both AMOLED phones, I got mine in Feb, she bought hers in March.
So, here comes the timeline:
@23:30, Turned it on after fully charged, went through all homescreens to activate all widgets. Did not run any programs.
I have no specially data intense widgets, only email and weather (3hr sync). Wifi off, and 3G (H) on always, no active background.
@08:00, On my way to work, Battery indicator (i use *#*#4636#*#* to check battery status) at 88%, recieved 1 email during the night.
Battery usage says: 49% Cell standby, 49% phone not in use, 2% android system.
I have noticed my phone struggling to keep connections while travelling even short distances(pre- and post-froyo), maybe a little worse of a problem post-froyo.
Did not happen today though!
I often need a reboot to get the connection back (Flightmode often works 1 time, but not 2 times. does not activate the second time I try it, just hangs...)
It's not only the data connection, there is no cell reception at all (apparantly).
Maybe I should start a thread on that also, but it is not a big issue for me (this phone is on a free use data plan, almost never use it for calls)
Dataplan here in norway costs around 50$ btw, no other extra costs for tethering and such in norway
@09:45, at work, recieved 2 more emails. now @84%, on EDGE network. battery usage: 53% Cell standby, 45% phone not in use, 2% android system.
not that bad actually... 10:21 "on" time, with 34 minutes active-use time.
Will try to leave the phone alone some more, and do some surfing on it around noon.
@12:55, still at work, used the phone for surfing and gReader for 25 minutes, on EDGE network. Downloaded a BOL revisited episode (podcast), I usually listen to an episode via bluetooth streaming while driving to/from work.
Now @67% and 35°C ( I noticed an temp. increase). Cell standby 47%, Not in use, 41%, android system 9%, screen 3%. uptime 13:35, waketime 1:07.
It connected to H (3g) the last 5-10 minutes or so of surfing. Turned on Wifi when I was finished, to see if I notice any battery decrease.
@14:25, did another 15-20 minutes of surfing, this time on Wifi, now @62%. also was a quick trip via google maps with gps on. battery usage states: Wifi usage 3% and google maps 2% already.. seems they use a lot of battery in a short time.
Wifi is set to turn off after 15 min of inactivety.
TBC....

http://forum.xda-developers.com/showthread.php?t=720717&highlight=teardown
Read that. Do a teardown and clean everything, you're out of warranty anyways.
Most likley a drop/smudge of beer etc inside short circuiting something and you'll have a slow, but increased battery drain from that.

thanks for giving me a heads up on that!
Not sure if I will take the time to fix it though, I'll have to see how much I miss it when I start using my Dell Streak

@15:35. On my way home from work. Writing using voice recognition on android. Battery level is currently @ 46%. Downloaded several emails, and 1 reply. Now connecting bluetooth for BOL streaming.
Sent from my HTC Desire using XDA App

Okay now i'm home, after 40 minutes of Bluetooth streaming battery is @36%. Stats are: cell standby 39%, not in use 34%, android system 15%, screen 5%, WiFi 3%, Bluetooth 2%, maps 2%. Times are: 17:07 total, 2:49 awake.
Sent from my HTC Desire using XDA App

@18:15 Surfing for 15 minutes now over 3g, and battery icon is orange.. level: 27%, awake time is now just over 3 hours.. I think it has held up quite good today, but I have really not used it as much as I normally would. And I also have a suspicion that using less WiFi helps a little on battery. Previous I have used WiFi always on to save 3g usage, but maybe it decreased battery.. anyone with a comment on that?
Sent from my HTC Desire using XDAApp

@18:45. Slight use of xdaapp and browser, now @18% and sinking rapidly :s
Sent from my HTC Desire using XDA App

@19:45, well my battery has just about had it for today, so this will be my last post. It's now @11%, have used it a little the last hour, but only light use..
Sent from my HTC Desire using XDA App

[SOLVED][Q] Battery issues?

Wondering if anyone else has had any battery issues? I went to sleep last night with about 85% or more battery, and 5.5 hours later my phone was dead....when i plugged it in for like 5 minutes to call my work and tell them i was going to be late...when i got to work my phone said 45% phone idle and 45% cell standby for battery use

none here - took phone off charger about midnight, this morning after alarm rang for the full 10 minutes, it still showed 100%
i've been watching it and am really impressed with battery life - is it possible you've got a program running in the background? - i had Startup Auditor to stop apps in the background but had that from before, on my Vibrant
on the vibrant,running a predominantly black wallpaper, screen brightness at 13%, putting phone in "airplane mode" when i sleep, keeping GPS off, data sync off etc, it'd be down to 17-22% at end of day before going back on charger
this G2, running live wallpaper (thunderstorm), no efficiency moves (ie GPS off, etc), screen brightness at 50%, phone still had 34% last night before going back on the charger - and the battery has not "conditioned" - i noticed on the past 2 phones batteries life got better after the first few weeks of use.

Nothing different than my nexus...and i was thinking maybe it was a game but that should have been killed automatically and i dont think it would say phone standby and cell idle if it was an app would it?

tonite you might try putting the phone in airplane mode when you go to bed, and turn off GPS
see what happens to battery drain overnite - if it diminishes then i'd look at what apps you've installed. there was an article on engadget not too long ago that some researchers had analyzed the 358 most popular apps, and found 30 were reporting data to their "mothership" that had not declared it or asked for permission to report data.
hope that helps

well another weird thing is, that when i bought the phone and brought it home, usually it comes with half battery and thats what it showed but i had to charge it quick with no apps really installed on it yet...Im charging now and will test to see what happens with battery...i just removed off alot of my apps.... to see whats up

I'm getting about 10 hours with regular usage though I wish I knew why Photobucket keeps starting everytime i kill it.

I hope you guys charged the phone fully before you used it first. That can play a big role in battery life.
I got my phone yesterday and haven't done any calibrations yet. I've been playing with it like you normally would if you buy a new smartphone. I took it off the charger around 9pm last night and at 7:32am right now I have about 60% left. So roughly 10.5 hours later and I've only lost about 40%. I'm very impressed by that. My vibrant would have been dead by now, it rarely lasts through the night if its not on the charger.

Jrbourque said:
Wondering if anyone else has had any battery issues? I went to sleep last night with about 85% or more battery, and 5.5 hours later my phone was dead....when i plugged it in for like 5 minutes to call my work and tell them i was going to be late...when i got to work my phone said 45% phone idle and 45% cell standby for battery use
Click to expand...
Click to collapse
What's your time with out signal, sounds like the 50% bug to me, google the airplane mode fix, if not you might want to look into a new radio, and you should allways recal your battery after you flash
Sent from my FroyoEris using XDA App

rigbyrobot said:
What's your time with out signal, sounds like the 50% bug to me, google the airplane mode fix, if not you might want to look into a new radio, and you should allways recal your battery after you flash
Sent from my FroyoEris using XDA App
Click to expand...
Click to collapse
what do you mean time without signal? and cant flash the build or radio without root(if thats what you meant) im fully charging it now and removed all of my apps...and going to see what happens from there

I've been using mine off and on mostly text, web and speedtests for 4 hours off the charger and my battery is at 91%
Sent from my T-Mobile G2 using XDA App

Battery Saver Mode Experiences

Hows the battery life you guys are experiencing with the mango update in general with and without battery saver mode on
is battery saver mode making a big difference?
im using battery saver for when the battery gets low and im noticing a bit of a stretch of extra battery life on my htc trophy (verizon)
when u turn battery saver mode on doesnt that disable notifications push and toast?
i know i havent tried the battery saver mode on the whole day to notice any difference just wanted to see if anybody else has yet and what kinda life are u getting on battery saver mode on all the time and when the battery gets low

well for the one day that I left my charger at home by accident when going to school I turned on battery saver mode and was able to make it through the entire day with my normal use habits with about 30% remaining once I got home. this was when I was on 7712 haven't done this on the official yet.

My 7720 experience was pretty horrid with battery life until I got the Samsung update on Tuesday. I went from barely making it 10-12 hours on a charge to 18-24 hours. I can get up to 1.5 hours with battery saver turned on.

For the first couple of days, I left my status set to "online" the entire day, and my battery barely lasted through the day (around 15 hours). Battery saver mode came on after about 13 hours, or it wouldn't have lasted.
Today I set myself to offline, and last time I checked it (after around 8 hours of normal use), it showed 80%. So it seems pretty clear to me that overall, Mango battery life is very good, but keeping yourself online is a killer.

Syst3m said:
My 7720 experience was pretty horrid with battery life until I got the Samsung update on Tuesday. I went from barely making it 10-12 hours on a charge to 18-24 hours. I can get up to 1.5 hours with battery saver turned on.
Click to expand...
Click to collapse
same here but HTC surround. Went from 7712 to official mango
Sent from my T8788 using XDA Windows Phone 7 App

Battery saver mode works pretty well for me... I love it... Thank god its inbuilt and I didn't had to download another one dollar application to do this thing.. Things like this should be inbuilt .. Also adding additional tile shortcuts of any kind we want..
Sent from my OMNIA7 using XDA Windows Phone 7 App

Haven't tried it. Battery life went down noticeably but I have chargers everywhere. I stay online all day. If I wasn't online in message hub I'd be online in some other app so why not. On Android my gtalk is always on as well. Don't see this phone lasting a day for me with or without battery saver, lol.
Sent from my HD7 using Board Express

I'm still debating about staying online all day. Most of the people I chat with on Facebook are online in the evening, but not so much during the day.
But I love the battery saver option. When I was online all day, and it did kick in toward the end of the day, I observed the battery usage drop to a mere trickle (it only lost around 1-2% per hour after that). So, without having to change anything, I can be assured that my phone will still be available in an emergency.

at full charge my venue pro shows me around 3 days and 18 or so hrs...with battery saver i get 3 more added...best part is i play music moderately, use the radio, wifi on all the time and at the days end it stil shows around 2 days and 12 hrs or so time left....is somthing wrong cos when i first bought the phone, 15 hours was the maximum i got for the phone.....

plug in charge usb messenging hub locks up
has anybody had this happen?
when your phone is in battery saver mode and you plug it in it becomes unresponsive and kind of locks up. messages and emails don't send or receive.
only way it ever happens for me:
if i was in a message and i plug into usb computer or wall outlet power the phone cant switch back from a message to the list of messages, i cant send the message that is typed, i cant type, and no messages are received (or show up after a reset) i can go back home but every time i try to do something it says loading and closeshas happened for a year now

Battery life for me in Mango and 8107 (or whatever the latest update is called) has been pretty awful. I recently did a hard reset.
Post hard reset, a full charge would say 1D 4hours or something
After a few weeks, a full charge now says 18 hours, but lasts considerably less.
By noon my phone is at 50%, if I don't charge it, it hits battery saver mode by the time I leave (6pm). That's with taking it off the charger at 7am, and barely using it. Pretty horrible.
I'm seriously considering a BlackBerry. WP is great and all, but it's just not built for business use. And I need a battery that can last more than 10 minutes.

sure haven't said:
Battery life for me in Mango and 8107 (or whatever the latest update is called) has been pretty awful. I recently did a hard reset.
Post hard reset, a full charge would say 1D 4hours or something
After a few weeks, a full charge now says 18 hours, but lasts considerably less.
By noon my phone is at 50%, if I don't charge it, it hits battery saver mode by the time I leave (6pm). That's with taking it off the charger at 7am, and barely using it. Pretty horrible.
I'm seriously considering a BlackBerry. WP is great and all, but it's just not built for business use. And I need a battery that can last more than 10 minutes.
Click to expand...
Click to collapse
Sounds like you have a bad battery. My titan is at about 72% after an 8 hour day with lots of email use and some browsing / texting through the day. (i check 7 email account and exchange and hotmail are both push) Currently at 10pm mine still says 52% and estimates 10 more hours use. Now if i were to play a game for an hour or more i'd probably kill it but for browsing and more business like use... it can't be beat. My old surround lasts about 16 hours with wifi on unless my wife games it to death.

ROCOAFZ said:
Sounds like you have a bad battery. My titan is at about 72% after an 8 hour day with lots of email use and some browsing / texting through the day. (i check 7 email account and exchange and hotmail are both push) Currently at 10pm mine still says 52% and estimates 10 more hours use. Now if i were to play a game for an hour or more i'd probably kill it but for browsing and more business like use... it can't be beat. My old surround lasts about 16 hours with wifi on unless my wife games it to death.
Click to expand...
Click to collapse
Geez I wish.
Maybe it is time to switch it out. I've had it since Jan '11.

This battery life isn't normal right? Bad drain

I cant tell if it's always been like this. Or if this actually isn't normal because I'm always concern with battery life. Im a very heavy user in the sense my phone will be on and im texting, xda, social apps i.e google +, email check every hr, and twitter.
However, i started feeling like my battery has been draining alot faster when the screen is on. I have no problem with the phone sleeping. I was experience this on Calk rom and now acs ics rom. I literally can look at my battery percentage drop 10% in like a half hour. Is this normal if screen is on the whole time? I've used better battery stats and system panel I can't find anything causing the drain. I see the suspend and events but doesn't that effect the phone sleeping?
Sent from my SPH-D710 using xda premium

Are you on the new modem? Looks like you have weak a signal. EG31 might help a little if your not on it already. I used the full EG31 tar right when it dropped and have been getting great battery life (it may be to early but so far so good)
Sent from my SPH-D710 using xda premium

not sure if its going to work but hoping it does thanks for the response still

turn your display down to under 50% you won't see a difference except outside in daylight and kill this app every time you reboot the phone hit Settings>Applications>Running services then hit DRM content > stop > ok
I get over a day on one charge.

Glenn54 said:
turn your display down to under 50% you won't see a difference except outside in daylight and kill this app every time you reboot the phone hit Settings>Applications>Running services then hit DRM content > stop > ok
I get over a day on one charge.
Click to expand...
Click to collapse
Ok ill try the drm content stop..however my display brightness is already down at like 10%.

Also, kill the Social Hub as well, that drains the battery significantly.

You might try one of several roms available in dev. They address most of the aforementioned issues.
Sent from my SPH-D710 using XDA App

The biggest battery drain reason is the location by wireless network option. Make sure its unchecked. Ever since I did that, my battery life has been awesome. I get to keep my brightness high, Bluetooth on, etc...
Sent from my SPH-D710 using XDA App

bsmoove386 said:
I cant tell if it's always been like this. Or if this actually isn't normal because I'm always concern with battery life. Im a very heavy user in the sense my phone will be on and im texting, xda, social apps i.e google +, email check every hr, and twitter.
However, i started feeling like my battery has been draining alot faster when the screen is on. I have no problem with the phone sleeping. I was experience this on Calk rom and now acs ics rom. I literally can look at my battery percentage drop 10% in like a half hour. Is this normal if screen is on the whole time? I've used better battery stats and system panel I can't find anything causing the drain. I see the suspend and events but doesn't that effect the phone sleeping?
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
All the basics (brightness and all that stuff) on top of the stuff you have running. The darn task killer/manager I see in the icon top left of your screenshot is a HOG on resources check the caching... You can literally **** with these phones for half a day to set it up the right way to conserve. I think wireless is hogging too but I am talking primarily about the first part of your rapid loss, the left part of the graph so to speak.
JC

I purchased an extended battery and was still getting crappy battery life. SpareParts always FC'd on me... but last night I found Badass Battery Monitor in the market and in my opinion it's even better than SpareParts!
It helped me find that the Hotmail app was keeping my phone awake for almost an hour every day even though I had it set to download email only once a day. Removed that right away.
Plus it gives a great % readout in notification of the battery level. I think it's a fairly new app, but it really is worth checking out especially if you're having battery drain problems.

Just killing Social Hub has increased my battery life significantly. I'm at 11 hours now on battery, with 62% left. This is from last night when I unplugged the phone at 100%.

DevalB said:
Just killing Social Hub has increased my battery life significantly. I'm at 11 hours now on battery, with 62% left. This is from last night when I unplugged the phone at 100%.
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I'm on the Sydnicate Rom there isn't even no social hubb app. He has alot of the mods like noCiq and everything. My phone sleeps well its just when I start using it I can see it basically draining like 10% every half hour. I'm a heavy user I know my phone will drain fast while I'm on it I just would expect it to last 8-10 hours on heavy use.
Right NOW:
I'm at 4 hours 12 mins 22 secs at 37% left.
Display Time is 50% 2 hrs 41 mins 51s (Brightness is set all the way down)
Android OS 10%
So I'm assuming in 2 more hours my phone will die. If this is just normal for a heavy user then I guess I have to deal with it?

I was very disappointed with my Epic Touch when I first got it. I was getting a dead battery in about 6 to 8 hours no matter what I did or did not do.
Calibrating the battery seems to have fixed it.
I'm at 73% battery with 8:32 hours up time and I've made about 12 calls ranging from 2 to 10 minutes.
I've also checked voice mails, emails and other stuff.
I just charged the battery til it was full, plugged and repeated until it stayed at 10%, popped into CWM5 and cleared the battery data and then used Battery Calibration from the market (free) and it's like a got a battery upgrade!
As far as wake lock issues, I've not having any of those. I took my charger off the phone around 3:30am this morning (100% charge) and when I left for work at 6:50am, I had 98% battery still.
When I got to work it was down to 96%, I checked my email on the drive there.

I'm trying this out, wish me luck.
There doesn't seem to be any possible way to charge my battery to 100%, unplug it and not have it immediately drop to 99%.

bsmoove386 said:
I cant tell if it's always been like this. Or if this actually isn't normal because I'm always concern with battery life. Im a very heavy user in the sense my phone will be on and im texting, xda, social apps i.e google +, email check every hr, and twitter.
However, i started feeling like my battery has been draining alot faster when the screen is on. I have no problem with the phone sleeping. I was experience this on Calk rom and now acs ics rom. I literally can look at my battery percentage drop 10% in like a half hour. Is this normal if screen is on the whole time? I've used better battery stats and system panel I can't find anything causing the drain. I see the suspend and events but doesn't that effect the phone sleeping?
Sent from my SPH-D710 using xda premium
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If those screens are both from the same charge, I see nothing wrong with your phone.
you have 17% left, and you have 2.5 hours of screen on time. So you're on target to get just over 3 hours of on screeen time which is completely in the norm for these phones. AND you're over 12 hours. I don't understand what else you could ask for?
People get all caught up on total charge time, but, to be honest, it's completely IRRELEVENT.
If I dont use my phone I'll get easily over 48 hours out of the phone... Screen on time is what matters. And from a full charge, if I were to use my phone for 4 straight hours without stopping, it would be about dead. When the screen is on, you're using the phone, and the display is the biggest battery suck out there. When I do all the tricks to conserve battery, and I set it up right, I get 4 hours screen on time, which is pretty incredible with these phones.
Now, If you WANT to get better then you have right now, a few things are coming into play.
1) Your signal is weak, this will suck power no matter what more then it should, so get better signal if you want some more time out of your phone.
2) If you installed a new rom, and you didn't calibrate your battery properly, you're losing battery life.
to calibrate properly:
a) download battery callibration app from market
b) charge to 100%
c) unplug battery charger and REPLUG IN and wait for 100%
d) repeat step c a couple times
e) while plugged in hit the calibrate battery button in the app
f) unplug phone and use til dead and recharge
This will yeild you the best battery life.
3) De-Theme. Although I use a theme, every theme I've tested, for one reason or another, drains my battery faster then running the stock phone theme.
4) If you haven't done the basic battery saving things, you should do them to help yourself out. Here's a few I use.
a) Turn off background data, you only need it on to use market
b) Turn off, or set sync for all email and social apps at as long intervals as possible
c) dont use any widgets
d) download watchdog lite so you can see when apps are acting up and using extra battery
e) when you're done using your phone, open task manager, kill all apps, and clear memory
f) always leave the brightness off automatic and as low as possible
g) download SETCPU and run your phone at 800mhz, and undervolt as much as possible (50mv most all phone can take)
h) use black or dark wallpapers, on LED screens back means the pixel is off which uses less battery
G will be your biggest battery save. I've also tried using the SUPERFREEZE thing in the dev section and, besides in sleep mode, I saw no adverse effect. If you wanna kill socialhub, fine, but I dont see any noticable difference on my phone with it off.
If you do all these I promise you'll get better battery life.

Wow, I did a proper calibration today and I'm getting great results already. I've calibrated before but I never had cleared stats in CWM or did the unplug then replug charging thing.
Anyways, I after 12 hours I'm still at 35%! The longest I've ever gone before is 12.5 hours. Screen on time = 1 hour 30 min, but some of that was a battery intensive game (puzzle quest 2). Also i'm running calk's rom, so i'm sure that helped.
Thanks kdoggy, i didn't expect to see results this great.
Those are good tips too Jermzz, thanks!