Database Users

Anyone notice battery life improvement with OTA update?

It is at 50% more than it usually is now. Weird.

ma2k5 said:
It is at 50% more than it usually is now. Weird.
Click to expand...
Click to collapse
To be honest not that weird. Nexus one never had battery issues the main problem was the network jumping from 3G to edge all the time. That was the major battery hog. The update has fixed that to a certain extent so we were bound to see a performance hike.
Cheers.

Mine's gone down really fast today, first day after the update. No obvious drains in the battery usage page... I'm at about 40 percentage points lower than usual right now.

gunnner said:
Mine's gone down really fast today, first day after the update. No obvious drains in the battery usage page... I'm at about 40 percentage points lower than usual right now.
Click to expand...
Click to collapse
Mine seems to be doing better, usually I am at about 60-65% by this time, and I am at 77% right now with the same usage... 1hour of WiFi, 2 push email accounts, some video playback from the SD card, couple phone calls and txt msgs... actually might have used it a little more than usual since I downloaded some youtube videos, and I don't usually do that.
I will find out for sure later tonight when I get home and use it non-stop on WiFi for a couple hours.

Well one thing I noticed is that cell standby battery use has gone down dramatically (was nearly on par with display, sometimes even more). But I will report back tomorrow to see if this is still the case.

Mines definitely better today, not sure if it is because of the update or because of not running altered ROM's anymore. I seemed to have good battery life before rooting and installing roms and it seems to be back to about the same with the factory update so I might stick with this now instead of installing the ROMS and themes.

62% after 8 hours on WCDMA preferred.
Last time I tried that....it lasted about 13 hours total.
My shop(where the phone resides most of the day) has shoddy coverage for both edge and 3g.

I can confirm cell standby battery use has decreased dramaticallly after update. Gj google!

ma2k5 said:
It is at 50% more than it usually is now. Weird.
Click to expand...
Click to collapse
My battery life has drastically improved since the new radio. this phone gets better by the day, it seems!

Today, for me is the first day after the update and I noticed this morning that it was getting hot in my pocket. Took about 17% of the batter in a 40ish minute period... kinda odd.. did a pull and its been fine.. other than that, I'm on att so battery is always well.

mine randomly got pretty hot too.

I've seen a huge improvement, over 14 hours unplugged and I was at 79%. Before I would be at 50% within 12 hours.
My house 3g signal sucks, so I lost and additional 8% over the night, but at least it keeps a stable 3g signal here now (my G1 flip/flopped 2g/3g at my house since they put up the new 3g tower). I'm pretty pleased with the update, just wish they would have extended multi-touch to the keyboard.

I've been unplugged for 20hrs now. I used the phone yesterday as normal with calls, a couple of games, some browsing, downloaded a 14mb video and checked twitter at least a dozen times. My battery is at 54% so i'm VERY pleased. I'm going to try and go through the rest of today without recharging.

50% battery left after 8.5 hours uptime, so yeah, quite an improvement from the initial ~12 hours battery life.

[Q] JI6 OTA Poor Battery Perfomance

I have read these forums for a long time but this is my first post. I recently updated the JI6 via the official T-Mobile over the air method. I have been on JI6 for two days now and have noticed that my battery life is terrible. Usually I am able to make it through a day of average use without any problems and I charge at night. Yesterday my phone did not make it through the day and it was a low use day at that. When I got home from work I started charging the phone, before bed I unplugged it and figured it would be no problem to just leave it in standby all night, my previous experience was that a night of standby only dropped my battery by a few percent. When I got up and looked at my phone before leaving for work it had already dropped to 21%, I looked at the battery usage statistics and found that Cell Standy and Phone idle had leapfrogged over display which is usually the biggest draw of power and were now using significantly more power than even the display. Also I do not live in an area of poor cell phone reception so that could not have contributed to this.
My phone was pretty much stock besides being rooted to run the WiFi tether. My wife also has the same phone and she said she is experiencing pretty much the same thing since the JI6 update.
Below is the list of the top 4 batter using processes were on my phone and their percentages.
Cell Standby 41%
Phone idle 30%
Display12%
Android System 9%
Is anyone else experiencing similar battery usage since the JI6? Is there a known problem with this JI6? Has T-Mobile or Samsung acknowledged this problem? Any suggestions for fixing the problem at least until Froyo comes out?
Perhaps others can post their experiences with battery performance post JI6 here as well so we can get a consensus.

The radio in JI6 is stronger than previous versions to help with reception. That being said, it drains battery more. However, the stats your provided seem to point to you having apps on your phone that are pulling internet information too often. My cell standy or phone idle is never higher than my display and I do use widgets and apps that update a lot.

There just seems to be a bug somewhere that causes random drain, I've seen what people are saying about and I pulled the battery, it stopped draining for me until I guess I trigger it again.

kangxi said:
The radio in JI6 is stronger than previous versions to help with reception. That being said, it drains battery more. However, the stats your provided seem to point to you having apps on your phone that are pulling internet information too often. My cell standy or phone idle is never higher than my display and I do use widgets and apps that update a lot.
Click to expand...
Click to collapse
I do have some apps that are pulling data down from time to time, but I have been careful about setting these apps to not update too frequently. Also last night I specifically went in and closed any unwanted running apps, I think the only apps I left running were Seesmic, K9 Mail, and Gmail.

This thread is precisely the reason for why:
a) I finally registered to xda-developers for support
b) I decided to root my Vibrant
I received the JI6 OTA update around 5 AM on Wednesday, thinking *oh sweet this must be 2.2* I didn't hesitate to install it...the first 24 hours after didn't seem to show much signage of battery drain, but by Thursday morning things seemed...off.
6:00 AM - 100% charge, fresh off the cord
Around 11-noon - 15%, low battery notification pops up
This was by far the quickest drain I've seen, and even though I've only had my Vibrant for a month...right out of the box I was getting spectacular batt. performance with light-moderate use + wifi + sync, lowest brightness*(auto off), somewhere around 24-30 hours.
My initial reaction was to reset to factory, only to discover here that it did absolutely nothing to remove the JI6 update.
Now, post-root I've been reading through similar threads about the OTA effects and finding all types of tricks to extend the batt. life. Today the battery hasn't been as bad (with nearly everything off...sync, intervals, gps, blah blah), lasting around 11 hours. Not sure if there's any fix in sight, though I'm not really anticipating it reading how the cell standby / baseband is cranking out more power and in effect more juice.

My battery is about the same as before, getting 24-30 hours out of normal use. I'm currently 14.5 hours unplugged sitting at 42%
Sent from my SGH-T959 using XDA App

Flashed JI6 via Odin, and my battery life has sucked since. Talking on the phone kills it especially fast. I talked for about 45 mins yesterday morning and the battery gave out after 7 hours. Today it at least lasted 12 hours, but that was with pretty much everything turned off. Anyone flashed back to JFD? It's not like JI6 brought anything to the table.

My battery drains while idle after the update. Yet my wife's phone battery is fine. Hers is stock and mine is rooted with mobile AP flashed. I even reconditioned the battery.
Tonight I decided to flash bionix 1.91 rom to see if that would fix the battery drain issue. So far it's looking good. I'll know better tomorrow after a full charge.

JI6 installed Media Hub, right?
Sprint Epic users found that when Media Hub was installed on that platform a couple of revs back, it loaded a DRM background service that is constantly running even if Media Hub is never used. It is now pretty standard practice among knowledgeable Epic users to stop the DRM service whenever the phone boots. Many rooted users go further and delete it.
Vibrant users might try the same methods to improve battery life.

My battery usage has been fine. I installed through mini kies though rather then the ota.
Sent from my SGS Vibrant.

It totally sucks for me. I have tested it throughly this past week. Ran JDF and left it idle over night, barely lose any battery life. Update to JI6 via kies mini and lost 30% over night while i'm sleeping. I also tested the various versions of JI6 posted on xda and all of them give me horrible battery life (losing 3-5% per hour doing nothing).
I'm flashing the JDF modem file on the JI6 from kies mini. Will report back...

Again I'm completely confused here. Running stock JI6, went to sleep last night at 24%, woke up this morning at 21%
Sent from my SGH-T959 using XDA App

boomerbubba said:
JI6 installed Media Hub, right?
Sprint Epic users found that when Media Hub was installed on that platform a couple of revs back, it loaded a DRM background service that is constantly running even if Media Hub is never used. It is now pretty standard practice among knowledgeable Epic users to stop the DRM service whenever the phone boots. Many rooted users go further and delete it.
Vibrant users might try the same methods to improve battery life.
Click to expand...
Click to collapse
I removed mediahub via titanium and a bunch of bloatware while I was at it yesterday morning, I can report that last night before dozing off (11:45 pm) battery was at 90%, this morning (8:30 am) its at 63%...37% loss in almost 9 hours. Only wifi on throughout the night:
Display: 41% (brightness 0)
Cell standby: 27%
Phone idle: 19%
Android system: 7%
Sent from my SGH-T959 using XDA App

That makes no sense, if you're on WiFi it wouldn't be the cause of this. Are you sure it's set to be on WiFi 100% of the time/when the screen is off?

That's ridiculous, something is awry
Sent from my SGH-T959 using XDA App

Just kidding stupid me, just checked wifi sleep policy...changed it to 'never' now. Yeaaa that might've helped lol.
Sent from my SGH-T959 using XDA App

Switching to bionix 1.91 stock kernel solved my idle battery drain issue. I was losing ~4% an hour and now with bionix it's not draining. Unplugged the phone this morning at 100% and an hour later it was still at 100%. Same as before the JI6 update. I'm happy now. Bionix is smooth as butter.

Yellow C6 said:
Switching to bionix 1.91 stock kernel solved my idle battery drain issue. I was losing ~4% an hour and now with bionix it's not draining. Unplugged the phone this morning at 100% and an hour later it was still at 100%. Same as before the JI6 update. I'm happy now. Bionix is smooth as butter.
Click to expand...
Click to collapse
I'm contemplating this option, how long have you been on bionix now? Any stats on batt performance afterward, hours?
Sent from my SGH-T959 using XDA App

After the update I got horrible lag and bad drain. I'm talking 4 hours on average usage.
Sent from my HTC HD2 2.2 Group using XDA app

Does anyone else see the irony or possible logic that Samsung gave us a stronger modem that uses more power and a new task manager to monitor what else is running draining power with the Ji6 update? Granted there are better task managers for root, but kinda clicks in my head.
Also after all my settings have been checked, apps, wifi sleep (used OCLF), widgets and internet, syncing frequency, wallpaper etc. I used Rom Manager to recalibrate my batteries. I thought that the battery data might have been wiped during the update and at first my phone behaved like it.
All good now. I'll never have the stand by of a flip phone, but it all seems reasonable. I use my phone a lot, a real lot. I go through 2-3 charges a day, mostly 2. I have extra batteries also. Stand buy time almost seems better, but I have not recorded data and I have made many changes.
Theres a good thread a dude put up in the Vibrant general section about his anal battery saving habits, he uncovered more ideas and things I didn't know. Hes admitedly extreme put its a good read. Also a couple of threads on how to recal the battery, some disagreement there so I did not chime in here with specs.

Acceptable Battery life?

I have read many other threads about improving battery life and such but I am still at a loss. My battery in my Epic is only lasting about 5 hours(9AM~1:30PM). I have a moderate signal the whole time and I am using the phone but I only have the screen on about 10% of the time according to Battery Stats(forget where I found this info, maybe spare parts?)
I have turned off Wifi, bluetooth, 4g, GPS only turns on when I open an app that needs it. I really have no idea what I am doing wrong since this seems to be completely terrible battery life. I have also killed the drm service and have found that it did not help my battery life much.
I am rooted and running Syndicate Rom 1.0.2(not froyo since I use a Mac and have not gotten my hands on a pc). I am using Xtreme Kernel clocked at a max of 1ghz.
Any other tips? Should I take the phone to Sprint and ask for a new battery? The phone at this point is only about 3 months old. If this seems to be normal for battery life then I am pretty sure I will be jumping ship and getting a new phone.
Zach

mttallaczach said:
I have read many other threads about improving battery life and such but I am still at a loss. My battery in my Epic is only lasting about 5 hours(9AM~1:30PM). I have a moderate signal the whole time and I am using the phone but I only have the screen on about 10% of the time according to Battery Stats(forget where I found this info, maybe spare parts?)
I have turned off Wifi, bluetooth, 4g, GPS only turns on when I open an app that needs it. I really have no idea what I am doing wrong since this seems to be completely terrible battery life. I have also killed the drm service and have found that it did not help my battery life much.
I am rooted and running Syndicate Rom 1.0.2(not froyo since I use a Mac and have not gotten my hands on a pc). I am using Xtreme Kernel clocked at a max of 1ghz.
Any other tips? Should I take the phone to Sprint and ask for a new battery? The phone at this point is only about 3 months old. If this seems to be normal for battery life then I am pretty sure I will be jumping ship and getting a new phone.
Zach
Click to expand...
Click to collapse
Only advise I have is to toggle airplane mode after every boot and switch from the extreme kernel to pheonix 1.43, it has the best battery life by far as will any of the phenix kernels but 1.43 is the best
Sent from my SPH-D700 using XDA App

I got 25 hours of a charge the other day. Had to grab a screen shot real quick before it **** down. Might frame it. On stock dk28 with moderate use, lots of pics...it was on christmas so it was prety well used, trying to escape conversations with in laws.
Sent from my SPH-D700 using XDA App

I'm having the same exact problem. Same ROM and everything. I'm getting absolutely terrible battery life, maybe 5hrs on a full charge. Its ridiculous especially seeing how the nexus s is basically the same phone and gets nearly 20 hrs with no problem. WTF!!!??

Would bet a dollar that your phone is not entering sleep mode properly. Download Spare parts, charge your phone up, unplug it and turn the screen off and wait for like 10-20 minutes and then turn it on and open spare parts and look under Battery History. You will see that it will say Running 100% or something high like that.
This is probably because of something you set up. Either facebook updating every 30 seconds or maybe push email. I dont know.

I pretty much always get at least 24 hours and I work in a basement where I barely get a signal. I leave wifi on all day. I talk for about 20-45 a day on average. I listen to music for a couple hours a day. I play games for a good half hour of my lunch break and sometimes for an hour or two at night. Sometimes I forget to turn my gps off for half the day while I'm in the basement.
I have killed a battery in 6 hours when I spent the entire time downloading and playing games. And I had a battery last 42 hours a couple weeks ago when I was helping a buddy work on a car. We used it to drive some crappy pc speakers for music for about 8 hours in those two days and I spent a couple hours over those two days looking for info to help us diagnose his car.
I have been on Mammon's DK28 for a few weeks and have mostly been on the latest FroYo roms since the leaks starting hitting the public. I ran the same rom and kernel as you guys for a couple weeks, and I don't remember the battery being that bad. IIRC, I was overclocked and still saw 18+ hours of battery life with normal usage.
What are we doing differently? That is the question. Do you have a bunch of widgets and a live wallpaper? I don't. I try to keep my widgets pretty minimal. I have TWC on one screen, a flashlight widget on my main screen, and Pandora and PowerAmp on a third. I generally use a pretty dark wallpaper, too. Something simple and easy on the eyes as well as the amoled. I also keep my wifi on and set it to never sleep wifi. Why? So it doesn't search for a 3g data connection. I have wireless networks I can connect to in the places where I spend most of my time, so I might as well use them. Sure it has to power up the wifi radio, but the wifi radio seems to use very little power when you're sitting somewhere with a good signal. Also, read "How to Train Your Dragon" in the dev section. I have three batteries and generally reset the battery stats on one of them every two weeks. If you only have one battery, every 3-4 weeks is suggested. I always charge my batteries in the charger and almost never plug my phone in (because I don't have to) and about half the time I bump charge the battery after it is finished. Be careful with bump charging as it can reduce the number of charge cycles your battery can take, but can net you 10-15% more capacity in the short term. I rarely discharge my batteries below 15% except for when I'm recalibrating them. If you discharge your battery to too low of a voltage it can reduce capacity. And if voltage is reduced too low, it won't charge at all, but may be fixable with a cadex machine.
Be sure to go find that thread on how to train your dragon. There are some links in there that will teach you a good bit about how lithium ion batteries work and what you can do with them. After that, you need to see what is running on your phone to use that much battery. Is some process or group of process eating your processor?
edit: Look Mom, I wrote a book!

I will try changing kernels and updating to froyo(maybe hijack my dad's netbook).
If this doesn't work then I am going to go to sprint and see if they will swap out my battery. I tried the thing with spare parts and it says time running is 18% since last unplug which seems a bit high but not too ridiculous.
I have read and followed the instructions in how to train your dragon. I am really starting to think it is a faulty battery. I will report back, thank you everyone for the advice.

ok, thank you all for the advice. I am able to get through a whole day now on a charge since changing to Phoenix. Maxes out at about 10 hours as long as I am not constantly on it.
Updating to froyo later today.

Not really going to be helpful for you, but just my observation:
DK28 has MURDERED my battery life. Lots of people have issues with DK28, but the GPS, accelerometer, etc but all that stuff works fine for me - the only problem is the mega hit battery life took.
Let's hope the official release isn't as bad.

DK28 probably murdered your battery life because you forgot to do one of the battery saving techniques that you were using on your previous DI18 rom. Pretty much everyone else is seeing battery improvements with DK28.

I don't think so. I never use GPS, 4G or Wifi and I've always had the brightness auto adjust on.

[Q] Desire Z : Really Inconsistent Speeds + Battery Issues

Friend has a new Desire Z (bell, unlocked). Using it on AT&T network.
When at a house, and we use WiFI (30Mbps DL, 25Mbps UL), the speeds are VERY inconsistent. With my iPhone 4 using speedtest.net, it shows up as 20/15 each time. (WiFi is a little slower than the modem).
With the Desire Z, we get 15/10 (which is fine/acceptable). Then 3 minutes later we do it, we get 5/2. Without even moving the phone or touching the modem connection (not downloading anything on the computer), the connection just gets slower. Then it might be fast or slow, basically it's a toss-up.
The first time we noticed the issue is because when we are outside, we get HSPA speeds of 2.5/1.0, then randomly decreases to 0.1/0.05. HUGE difference. And VERY inconsistent. He is using a microSIM from iPhone 4, with an adapter, so we figured maybe the SIM card is getting loose at certain points? However, the WiFi is also inconsistent in addition to the HSPA, so it's probably not that.
What should I do? Is this the situation where I have to flash a new radio or something? (Please suggest others if I am wrong).
Thanks!
---
Also, his battery is kinda weak. The battery health is apparently clean/healthy. He came from an iPhone 4, where he would have 3G, WiFi, and GPS on at night but not actually using them. Wake up, and 3% battery loss, maybe 5. WITHOUT using them, just having them on.
Now, with the Desire Z, we have the WiFi + 3G on, but NOT the GPS. He is losing 20%-25% in 8 hours without even using the phone.
Information about battery shows a high Cell standby (25%) and Phone idle (25%) percentage. When going into Spare Parts > Partial Wake usage, we didn't find anything really fishy. BUT we had rebooted so perhaps some info may have been lossed. Should he just go to sleep tonight and report the Partial Wake Usage statistics again?
We have a feeling it may be some apps refreshing at night.. But he clears all the apps with Advanced Task Manager except for like Facebook (2 hour interval refresh), GMail, and Google Voice.
I highly doubt a 20% battery decrease overnight is normal.. My mom's Atrix only loses about 5% overnight, with the same parameters I gave before.
I thought it may be a bad battery, BUT the phone idle + cell standby are abnormally high.
Thanks!

Why is this in General as well as Q&A?

Put this in Q&A, didn't get any answers. Went to General, saw that more people posted there, even for Q&A's. Have an actual problem that research didn't help much with, so made a thread. If necessary, I would be glad to remove the thread on Q&A.
By the way, thanks for the answer .

Would you be able to post your software specs? Radio version, rom version, android version? My Bell DZ only loses about 3% per night if I don't plug it in to charge. I, like you, have wifi, gps and hspa enabled with no huge I'll effect.
The stock battery is usually alittle weak. Being a 1350mA, it doesn't have the capacity either, but that is why it is user replaceable. I picked up the mugen 1800mA battery that gives the phone the stamina to last a full day of full use or 2-3 days of light use. I forget how much I spent on it but it was definitely an upgrade.
As for the signal issues, we would need to know what you are running. The latest .30 radio is recommended for AT&T if I remember correctly. Also, the type of rom (stock or custom) might give us abit more insight.
Sent from my HTC Desire Z using XDA App

I lost about 10% overnight today I believe, possibly 15 (don't remember exactly what I left off at).
Not sure on all the stats because I don't know how to check them but
Android Version 2.3.4
Cyanogenmod 7.1.0-RC-Vision (seller did it for me)
What is the radio version? I think that is baseband not kernel? If so its 12.52.60.25U_26.08.04.30_M3
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If anyone knows about the sporadic data, that'd be helpful. It does seem that if I go into airplane mode a few times it fixes itself, but I doubt everyone does that to ensure fast HSPA speeds
Sent from my HTC Desire Z using XDA Premium App

I've never used CyanogenMod Custom ROM's before, so I can't speak from that experience. I can, however, tell you that while running RMK (and team's) Custom ROM's (Virtuous, G-Lite, Unity) and now MIUI, battery life has been excellent, even with the stock battery. The current build of MIUI lasted for about 15hrs on a day of full use, RMK's ROMs would last about 12-15hrs of moderate to full use on the stock battery. Alot of the custom roms have different power management settings and tweaks, if you're comfortable with flashing, I would recommend another ROM and see if that helps with either of your problems.
If you like the Vanilla/AOSP look of android, try RMK's G-Lite ROM. It is very lightweight, fast and stable. I remember having one issue with it, but it was a very small issue and didn't stop me from using it for a few months.
I am currently on MIUI English 1.7.1 and with moderate use I am sitting at 50% charge spent over 2 days. Moderate for me is about 300 texts with about 10 phone calls and a total of about 4hrs of web browsing.
I can link you to those roms if you need, but they're all located in the Dev section. Your radio seems like it's on the right version, so perhaps it's not the issue. Try running another rom for a week and see if that helps to any degree.

I re-calibrated the battery, let it die, charged it up, let it die, charged it up. I followed the instructions to the letter and all that.
It was at 100% when I went to sleep. Woke up 8 hours later, 74%.
Settings > Battery shows nothing high 40% for cell standby and phone idle. Everything else (Facebook, etc.) REALLY low.
Then I went to Spare Parts > Battery Usage, Partial wake usage, everything incredibly low as well..
I will try Watchdog, but could it just be a bad battery? Or maybe should I try a different ROM?
Thanks!

JayXL14 said:
I re-calibrated the battery, let it die, charged it up, let it die, charged it up. I followed the instructions to the letter and all that.
Click to expand...
Click to collapse
NO! This is poor recommendation, and people need to stop perpetuating it. People keep recommending this, but its NOT a good idea to let the battery drain until it dies, just to calibrate the battery meter. While the protection circuit on the battery will USUALLY prevent over discharge, it is not 100% failsafe. There is a slight possibility that over-discharge of the battery will happen, and then the battery is no good, and will need to be replaced. Unless you have a special battery meter with a "boost" function (which most people do not have access to). See the following table on Battery University, where it says for Li ion batteries: Discharge: Prevent full cycles
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
Best practice is to charge to 100%, drain to about 20%, repeat a couple times. No need to go below 20%. The battery meter is not very accurate to begin with, so there is no value added going to 0% versus 20%, but you risk killing the battery.
Plus people keep abusing the terminology. You are just calibrating the battery meter, not "calibrating the battery". When people say this, I think its just a holdover from the old days of NiCad batteries, where you had to condition/discharge the batteries periodically to prevent memory effects (Li ion batteries do not suffer from memory effects, and require no period cycling).

Can't really speak to the Atrix or the iPhone. But the battery drain on the DZ described by the OP is right in line with what I've seen. I also have an unlocked Bell DZ on AT&T, and battery drain of 2-4% (on various ROMs and couple different radios) when the phone is completely idle, screen off is totally normal. Best I've seen on my DZ is with the Virtuous Unity ROM and the .30 Gingerbread radio, where I've seen somewhere around 1-2% drain per hour when idle.
One possibility, is that the different phones are not reporting % battery the same way. As I've mentioned above, the battery voltage meters on phones is not very accurate, maybe in the range of 5-10% accuracy (although, even with this, the drain on the DZ versus the ATrix and iPhone still sounds inconsistent). But what is more important is how many hours of usage you get before needing to charge.

Thanks for the info.. Ill try charging that way.
And I honestly think the battery is just reading it wrong. It honestly feels like it dies faster idle than not, go figure. Yesterday, at like 10% battery, I wanted to kill it off, and played a game for like 10 minutes straight, still 10...
Then I tried leaving the flashlight on for 10 minutes on and it maybe lost 1
How is that battery I recommended from dealextreme though?
Sent from my HTC Desire Z using XDA Premium App

It's interesting to see all the troubles that people are getting on the DZ...
I've had my DZ for about 6months and never seen any of the reported problems.
My 1350mha will last me on a frequent usage near 24hrs and if I'm using it lightly like when i'm busy at work... almost 2days worth.
Mind you I'm running Cyanogen MOD7. No GPS. Wifi is on and I use JuiceDefender.
Cheers mates.

Last night, I charged my phone to a complete charge before going to bed to see what kind of drain I would see overnight. After 9.5 hours, my battery had only lost 2% sitting idle. That is with 3G on, but no Wifi or Bluetooth enabled.
The phone idle accounted for 47%, cell standby 48% and Android system 4%
While it seems remarkable, I'm still not convinced that its not my phone incorrectly reporting the battery level. On a typical day when I pull my phone off the charger, the first 10% is very slow to drain. Today, I have sent a few text messages and played maybe 3 minutes of word feud. That has drained 6% of my battery.
We will see where I'm at later in the day. I suspect that the actual level is lower than the 94% it is reporting. Typically, I get between 12-16 hours of usage, depending on how much I play with my phone.

Well I am at nearly 23 hours on this charge. Have used the phone rather lightly during the day. It sat idle for about 9 of those hours while I slept last night.
Conclusion: Idle drain is very minimal on my device and looks as though the percentage was being reported rather accurately. I'd say if you're having a lot of drain while sitting idle, do some digging and find what it is.
More info:
Facebook: update 1 hour
Gmail Sync: 1 hour
Fancy Widget update: 1 hour
Brilliant Quotes widget: update 1 hour
Light Bluetooth usage (about 15 minutes)
Wifi on all day (not overnight so about 14 hours total)
Screen brightness set at about 50%
Average signal strength: -100dbm

quick battery drain

i was at 55% at about 5pm yesterday after 10+ hours of battery usage, 1.5hrs of screen, and probably 2 hours of LTE (the rest wifi). i use juice defender so when the screen is off it generally cuts data signals for me. well from 5pm to 9pm my battery went from 55% to 1% with maybe less than 30 minutes of usage (all on LTE though). i looked and no unwanted programs were running in the background.
i charged it overnight, got up and after an hour this morning of ALL standby (seriously the screen was on 3m), i went from 100% to 87%. that would mean on 100% standby the phone would have died within 8 hours, which is definitely not right or even similar to previous battery usage for me.
i restarted my phone, recharged, and so far it has been on for 40 minutes and the battery is at 99% with 2m of screen time, which makes a lot more sense. so have you ever experienced something like this where an android OS restart helps your battery, or does it sound like i might have a bad battery?

tuffluck said:
i was at 55% at about 5pm yesterday after 10+ hours of battery usage, 1.5hrs of screen, and probably 2 hours of LTE (the rest wifi). i use juice defender so when the screen is off it generally cuts data signals for me. well from 5pm to 9pm my battery went from 55% to 1% with maybe less than 30 minutes of usage (all on LTE though). i looked and no unwanted programs were running in the background.
i charged it overnight, got up and after an hour this morning of ALL standby (seriously the screen was on 3m), i went from 100% to 87%. that would mean on 100% standby the phone would have died within 8 hours, which is definitely not right or even similar to previous battery usage for me.
i restarted my phone, recharged, and so far it has been on for 40 minutes and the battery is at 99% with 2m of screen time, which makes a lot more sense. so have you ever experienced something like this where an android OS restart helps your battery, or does it sound like i might have a bad battery?
Click to expand...
Click to collapse
Install Carat, it will tell you exactly what is draining your battery. I'm guessing something something is syncing in the backgruond and killing your battery.

tuffluck said:
i was at 55% at about 5pm yesterday after 10+ hours of battery usage, 1.5hrs of screen, and probably 2 hours of LTE (the rest wifi). i use juice defender so when the screen is off it generally cuts data signals for me. well from 5pm to 9pm my battery went from 55% to 1% with maybe less than 30 minutes of usage (all on LTE though). i looked and no unwanted programs were running in the background.
i charged it overnight, got up and after an hour this morning of ALL standby (seriously the screen was on 3m), i went from 100% to 87%. that would mean on 100% standby the phone would have died within 8 hours, which is definitely not right or even similar to previous battery usage for me.
i restarted my phone, recharged, and so far it has been on for 40 minutes and the battery is at 99% with 2m of screen time, which makes a lot more sense. so have you ever experienced something like this where an android OS restart helps your battery, or does it sound like i might have a bad battery?
Click to expand...
Click to collapse
Lots of people are having an issue similar to this with ATT. Is your ATT?

i am in fact ATT. sorry i haven't seen the other posts about it, have they broken through to figure out the root of the problem? any link to a thread about this? it's very, very odd. 8 hours of battery life is no good, too.

tuffluck said:
i am in fact ATT. sorry i haven't seen the other posts about it, have they broken through to figure out the root of the problem? any link to a thread about this? it's very, very odd. 8 hours of battery life is no good, too.
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Click to collapse
I seem to get it when I am in a poor LTE coverage area, which includes one of my offices. It is strange. "Cell Standby" will usually have the largest battery usage in your settings. My temporary fix is to turn off "mobile data" from the toggle in notifications, especially if you have wifi where you are. You can usually tell when the battery is being drained b/c your phone will stay warm even with no apps running and the screen off. The only other thing that seems to help is restarting it every day or so. When I don't have this problem, the battery life on this phone is amazing, so I don't think it's a bad battery. If you find out a better solution, please let me know!

I'm assuming you get off work at 5 and use the phone more. If so, turn off juice defender when you leave work. Since juice defender turns off your signal, you have to reconnect every time you use the phone. That kills battery more than anything
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

AndroidLonghorn said:
I seem to get it when I am in a poor LTE coverage area, which includes one of my offices. It is strange. "Cell Standby" will usually have the largest battery usage in your settings. My temporary fix is to turn off "mobile data" from the toggle in notifications, especially if you have wifi where you are. You can usually tell when the battery is being drained b/c your phone will stay warm even with no apps running and the screen off. The only other thing that seems to help is restarting it every day or so. When I don't have this problem, the battery life on this phone is amazing, so I don't think it's a bad battery. If you find out a better solution, please let me know!
Click to expand...
Click to collapse
I would agree with your deduction. Cell standby is a battery hog. I use Wifi when I am at work and home. and HSPA+ everywhere in between. (No LTE in NH)

20blks said:
I'm assuming you get off work at 5 and use the phone more. If so, turn off juice defender when you leave work. Since juice defender turns off your signal, you have to reconnect every time you use the phone. That kills battery more than anything
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Doesnt that defeat the purpose of having JD? Has anyone shown than JD uses more battery than not having it at all?
Fyi cell standby doesnt actually use as much battery as it reports, its just incorrectly displayed on the battery meter. Hopefully there will be an update to fix it eventually. Google it if you want to fix it manually.

tuffluck said:
Doesnt that defeat the purpose of having JD? Has anyone shown than JD uses more battery than not having it at all?
Fyi cell standby doesnt actually use as much battery as it reports, its just incorrectly displayed on the battery meter. Hopefully there will be an update to fix it eventually. Google it if you want to fix it manually.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1732722 for directions on how to manually fix this. I am not sure if it works with AT&T variant. Correct me if I am wrong.
I wonder if this is a common issue with other phones. My Dinc shows more than 35% stand by most of the time.

SpartanG087 said:
http://forum.xda-developers.com/showthread.php?t=1732722 for directions on how to manually fix this. I am not sure if it works with AT&T variant. Correct me if I am wrong.
I wonder if this is a common issue with other phones. My Dinc shows more than 35% stand by most of the time.
Click to expand...
Click to collapse
Cell standby is just a reporting bug. It is not actually draining your phone as much as it shows.

There are two separate problems. There is the problem on the international S3's where it is reporting cell standby incorrectly. There is another problem with some of the ATT S3's where they are continually connecting or re-connecting to the network where they have a poor LTE signal. This is actually using the battery. You can feel the heat from your phone when you have no apps open and it is normally cool to the touch. The only solution I have found so far is to turn off mobile data, and the phone will cool down again and stop draining battery.

AndroidLonghorn said:
There are two separate problems. There is the problem on the international S3's where it is reporting cell standby incorrectly. There is another problem with some of the ATT S3's where they are continually connecting or re-connecting to the network where they have a poor LTE signal. This is actually using the battery. You can feel the heat from your phone when you have no apps open and it is normally cool to the touch. The only solution I have found so far is to turn off mobile data, and the phone will cool down again and stop draining battery.
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Click to collapse
Yeah I agree I think this is exactly the problem. I've only seen it once in a while though
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I disabled some of my ATT apps yesterday. I'm hoping that may have something to do with this issue, but I am in a location with a better signal today, so I don't know yet if that helped.

arkard1 said:
Cell standby is just a reporting bug. It is not actually draining your phone as much as it shows.
Click to expand...
Click to collapse
Right. It's just cosmetic.
I don't have LTE in my area and my battery life is okay. I use wifi at my house and at work. I just think it could be better, but i am used to my dinc with my custom rom and kernel. Amazing battery life. I can't wait until we get some sweet roms and kernels for the S3. So far i am super impressed with the phone.

arkard1 said:
Cell standby is just a reporting bug. It is not actually draining your phone as much as it shows.
Click to expand...
Click to collapse
double post

mobilehavoc said:
Yeah I agree I think this is exactly the problem. I've only seen it once in a while though
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
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Click to collapse
i think you guys are right. the only thing that fixed my problem was restarting, which obviously also turned off/on the mobile data. how would you do that normally? just hit airplane mode and then turn it back on?
do you guys think this is a bug with AT&T that will be fixed?

tuffluck said:
i think you guys are right. the only thing that fixed my problem was restarting, which obviously also turned off/on the mobile data. how would you do that normally? just hit airplane mode and then turn it back on?
do you guys think this is a bug with AT&T that will be fixed?
Click to expand...
Click to collapse
Turn it off in the notification drop down.

tuffluck said:
i think you guys are right. the only thing that fixed my problem was restarting, which obviously also turned off/on the mobile data. how would you do that normally? just hit airplane mode and then turn it back on?
do you guys think this is a bug with AT&T that will be fixed?
Click to expand...
Click to collapse
This isn't a problem that too many people are having, but there are enough that it must be a bug, at least for ATT. There is a toggle in your notifications that will turn off mobile data. I don't think it is enough to just turn it off and back on. If you are in an area with bad reception, you have to leave it off or the draining continues. If you find something else that works, please share with us.

AndroidLonghorn said:
This isn't a problem that too many people are having, but there are enough that it must be a bug, at least for ATT. There is a toggle in your notifications that will turn off mobile data. I don't think it is enough to just turn it off and back on. If you are in an area with bad reception, you have to leave it off or the draining continues. If you find something else that works, please share with us.
Click to expand...
Click to collapse
Just to confirm, a reboot fixed it. I was running my phone for over 10 days straight before it happened so as long as it only happens every 2 weeks or so it doesn't matter
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Battery Drain - ATT Stock - rooted
mobilehavoc said:
Just to confirm, a reboot fixed it. I was running my phone for over 10 days straight before it happened so as long as it only happens every 2 weeks or so it doesn't matter
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
I'm also seeing this issue; battery gets hot and drains quick in sleep.
I'm running stock, and only rooted.
I do notice when checking my battery that "Android System" is taking up the majority of my battery, by a considerable amount. Is anyone else who is experiencing the drain issue also seeing this under their battery reporting menu?