Develop Bugs

Battery life too short? Watch this from Google developer!!!

Hi,
If you want to know how long your battery life will last when:
- Idle on 2G/EDGE
- Idle on 3G
- Idle on WiFi
- Browsing on EDGE/3G/WiFi
- etc.
What cost battery life the most?
You will learn that "waking up app for doing nothing" will cost you heavily on battery life.
Things like checking email while you have no new email, checking weather while you got the same result, or getting data online while you are not connected to the network.
And so on ...
Sit tight and watch this:
http://code.google.com/events/io/2009/sessions/CodingLifeBatteryLife.html
This special session from Google IO in the past CupCake era explained in detail, with measurements about almost every aspects of the phone that drain the battery.
Interesting enough that IDLE on 2G vs IDLE on 3G will cost you almost the same. And browsing in 3G is more efficient. So, in this respect, I think it is not necessary to set to 2G as most people said for auto-syncing.
At home, use WiFi, because it is more efficient for web browsing.
Choosing and planning your sync and widget will make big different on battery life!
Watch it your-self and share your thought.

i've just removed advanced task killer app, and seriously battery lif is like amazing normally by now i would be at around 50% i'm at 70% and have been using it more like 2 phone calls i normally don't make any and a tiny bit of browsing but that certainly improved it

slaming said:
i've just removed advanced task killer app, and seriously battery lif is like amazing normally by now i would be at around 50% i'm at 70% and have been using it more like 2 phone calls i normally don't make any and a tiny bit of browsing but that certainly improved it
Click to expand...
Click to collapse
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.

Here what I experienced:
First of all, my phone settings:
- WiFi OFF (on when needed)
- Mobile network OFF (on when needed)
- Always on OFF
- Background data ON
- Auto sync OFF
- GPS OFF
- Bluetooth OFF
- 10% brightness (yes, my eyes is happy with that, seriously!)
- Using HTC "black" wallpaper
One day, I played around with killing tasks, not brutally killing, but just some of them like RADIO, MARKET, etc. Selectively killing.
Then I watched my battery usage, it drain quite a bit like 3% after 1 or 2 hours. I meant, it was really different compared to the other day when I did not touch task killer.
Today, I unplugged at 8:00 AM ... 100%
Now, 15:00 ... still 98% (after 7 hours!).
During that time, I played around a bit with Market via WiFi and SMS, no phone call.
Seriously, I got different result when using and not using task killer.
Try it yourself
mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse

mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse
yep plus i'd normally i don't have bluetooth and i forgot to turn it off today afer using my blutooth headphones, and still at 70% yeasterday it would have been dead by now and i didn't even use task killer to kill apps. maybe advanced task killer stops apps being killed by the android system.

mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse
I find this one a strange (what seems to be) fallacy when coming to Android 2.x. When I got my Desire, the first thing I got was a task killer. Then, a widget to let me know hom much RAM I have left. When it got low, I used the TK to do it's job and free up some RAM.
But the permeating fallacy seems to be that a TK is needed. But it seems people are finding out, time and time again that it's not. And as people here are finding, it's detrimental. And after not using my TK for a while, I found out that though the RAM can get low, Android will do it's thing in the background and I never notice low RAM in my daily operation.
Some people on another forum put me onto some info sources that explained why TKs can make your battery life shorter. In short, they can kill tasks which have scripts that will respawn, thus causing higher CPU usage and draining battery a little bit quicker.
There were other reasons but I can't remember them right now. People should really let people know and educate them (including some popular websites like AndroidCentral.com that I like) that it's not necesary and actually a waste. (Though I use mine for doing things like file management, installing and uninstalling, but not task killing.)
I watched most of that video that was kindly posted. And if I get this correctly (please correct me if I haven't), when I'm in wifi range, I'd be better off leaving that on to do data transfer as there is a negligable passive battery consumption over 3G and 2G, but a saving when transfering data which grows as the data transfer grows.
But then wifi should be turned off when leaving the wifi area, as like 3G, it drains the battery to have it searching.
Since I'll be in a wifi zone for most of tomorrow, I'm curious if I can get through a full day with wifi left on...

what makes me wonder is if i go to the market, search for something then i go to browser for couple minutes and then go back to the home screen, will the market and browser use the 3g/h/g in the background?
sorry if the answer for this is in the video but do not have time to watch it right now.

It's been said many times that Task killers are not necessary on Android phones and that their use will almost always result in worse battery life and reduced performance.
I used to have two HTC Heros and proved pretty conclusively that the above was true by running a task killer on one but having the same apps. on both. I even reversed things in case the battery was better on one of the devices.
You will never convince some people though. It they want worse battery life and performance surely that is their choice.
I know I will never again put a task killer on an Android device.

Desire battery observations

I know you guys might be tired of these threads but I thought I might as well post this.
My desire is fairly new(Less than a week) and so far its been good apart from(What I though) battery life. i've been trying to improve it and I think I might have "some" progress.
Currently I'm running DeFrost 4.9 with HAVS @ 1137(4.9a) kernel with the very latest radio, I also use only 2G networks(No 3G here). I got two Gmail accounts but only one has sync(The other one is merely for Google checkout CC purchases), I got one Facebook account set to sync every hour as well as LP Facebook widget also set to sync every hour. I also got FancyWidget syncing weather every 3 hours. Apart from these I got Nimbuzz running 24/7 in background. The battery is calibrated and yesterday I did a complete discharge/recharge.
Now I plugged it off the charger 2 hours ago, it was at 100 according to spare parts. The brightness is at 2%. I did some lite browsing, browsed a bit with Tapatalk Pro and 40 minutes ago went to a market nearby. During my trip to market I had Google Navigation turned on navigating me(During both, the trip to the market and return). Now while making this post the battery is at 81%. Does it sound right?

Dragooon123 said:
I know you guys might be tired of these threads but I thought I might as well post this.
My desire is fairly new(Less than a week) and so far its been good apart from(What I though) battery life. i've been trying to improve it and I think I might have "some" progress.
Currently I'm running DeFrost 4.9 with HAVS @ 1137(4.9a) kernel with the very latest radio, I also use only 2G networks(No 3G here). I got two Gmail accounts but only one has sync(The other one is merely for Google checkout CC purchases), I got one Facebook account set to sync every hour as well as LP Facebook widget also set to sync every hour. I also got FancyWidget syncing weather every 3 hours. Apart from these I got Nimbuzz running 24/7 in background. The battery is calibrated and yesterday I did a complete discharge/recharge.
Now I plugged it off the charger 2 hours ago, it was at 100 according to spare parts. The brightness is at 2%. I did some lite browsing, browsed a bit with Tapatalk Pro and 40 minutes ago went to a market nearby. During my trip to market I had Google Navigation turned on navigating me(During both, the trip to the market and return). Now while making this post the battery is at 81%. Does it sound right?
Click to expand...
Click to collapse
How much time the display was on? How much time was the GPS on?

Be careful, don't be happy before time. I did the recalibration too, and found that my phone would turn itself off at ~20% remaining battery.

venkig said:
How much time the display was on? How much time was the GPS on?
Click to expand...
Click to collapse
During the navigation, about 5 minutes for display, 40 minutes GPS during which I went into a building for 10 minutes and it probably lost signal then.
Sent from my HTC Desire using Tapatalk

OK, this ain't good. I slept at around 2 AM with 29% battery life. In the morning(10:30 AM) it was dead(0% battery).

Dragooon123 said:
OK, this ain't good. I slept at around 2 AM with 29% battery life. In the morning(10:30 AM) it was dead(0% battery).
Click to expand...
Click to collapse
Sound about right. 8.5 hours with your facebook and other syncs. I don't see any problems at all. Mine does this too.

Dragooon123 said:
OK, this ain't good. I slept at around 2 AM with 29% battery life. In the morning(10:30 AM) it was dead(0% battery).
Click to expand...
Click to collapse
First, in the night put the phone in airplane mode (I dont think u need to check ur facebook )
Second, check if u have useless programs that are using cpu in background, if is this the case UNINSTALL that program and CONTACT the developer. We dont need to kill those kinds of app, we just have to UNINSTALL if an app doesn't work properly, untill the developer will fix it. If all people will do like me, the market will full of great apps

I don't think I have any useless stuff running in the background. All I got are 2 widgets(Facebook and Twitter) syncing every 1 hour and 3 hours respectively, one Fancy Widget fetching weather and Gmail push for one account. Is their a way I can check all the services running in the BG?
EDIT : Forgot to mention Nimbuzz running 24/7.

ljesh said:
Be careful, don't be happy before time. I did the recalibration too, and found that my phone would turn itself off at ~20% remaining battery.
Click to expand...
Click to collapse
Agree... before I used to see 1% but after "calibration" now it shuts down itself at 8~9%
Sent from my HTC Desire using XDA App

Dragooon123 said:
OK, this ain't good. I slept at around 2 AM with 29% battery life. In the morning(10:30 AM) it was dead(0% battery).
Click to expand...
Click to collapse
I won't rehash all of what has been heavily discussed by now in much greater depth, like in the FroYo Battery Usage thread. But auto sync with such social applications and you set yourself up for low battery runtime to begin with. Especially with a constant polling IM and/or battery widget running too. Don't expect much.
Anyway, I don't use them but weather, stocks, 5 mail accounts and news is set to auto-sync every 15 minutes and WiFi is always running if available. Last discharge as soon as I connected charger ended at:
http://bit.ly/c6R59G
http://bit.ly/bmM9oN
http://bit.ly/cMlnun
http://bit.ly/akPvr7
I slept twice for 7-8 hours each on that charge and it includes all of my daily usage including listening to 127 minutes of MP3 via headphones with the screen off.
[images appear greeny due to a screenshot application bug when manual colour calibration is done]
-----------------------------------
- HTC Desire via XDA App -

Hmm Wi-Fi + Nimbuzz really screws up the battery . Last night I turned off the Wi-Fi and slept for 8 hours. I had 46% battery before and in the morning I had 40%. I also have disabled Auto-sync for Twitter/Facebook widget and Facebook app. Now the only running services I got are Gmail push, FancyWidget weather and Nimbuzz.
th3 said:
I won't rehash all of what has been heavily discussed by now in much greater depth, like in the FroYo Battery Usage thread. But auto sync with such social applications and you set yourself up for low battery runtime to begin with. Especially with a constant polling IM and/or battery widget running too. Don't expect much.
Anyway, I don't use them but weather, stocks, 5 mail accounts and news is set to auto-sync every 15 minutes and WiFi is always running if available. Last discharge as soon as I connected charger ended at:
http://bit.ly/c6R59G
http://bit.ly/bmM9oN
http://bit.ly/cMlnun
http://bit.ly/akPvr7
I slept twice for 7-8 hours each on that charge and it includes all of my daily usage including listening to 127 minutes of MP3 via headphones with the screen off.
[images appear greeny due to a screenshot application bug when manual colour calibration is done]
-----------------------------------
- HTC Desire via XDA App -
Click to expand...
Click to collapse
How did you manage to get such good battery life? Your phone lasted for over a 32 hours period which included 6 hours of display. And that too with stocks and News syncing every 15 minutes. Does Nimbuzz really screw you that much?

th3 said:
I won't rehash all of what has been heavily discussed by now in much greater depth, like in the FroYo Battery Usage thread. But auto sync with such social applications and you set yourself up for low battery runtime to begin with. Especially with a constant polling IM and/or battery widget running too. Don't expect much.
Anyway, I don't use them but weather, stocks, 5 mail accounts and news is set to auto-sync every 15 minutes and WiFi is always running if available. Last discharge as soon as I connected charger ended at:
http://bit.ly/c6R59G
http://bit.ly/bmM9oN
http://bit.ly/cMlnun
http://bit.ly/akPvr7
I slept twice for 7-8 hours each on that charge and it includes all of my daily usage including listening to 127 minutes of MP3 via headphones with the screen off.
[images appear greeny due to a screenshot application bug when manual colour calibration is done]
Click to expand...
Click to collapse
Well now datz some good battery. Which ROM are you using? Which Radio are you using?
I don't have any account/social networking syncing. Don't use wifi more than 20 mins a day. Brightness 20%. NO GPS. No Bluetooth. No stupid application sucking battery's power. If my screen is off I lose about 3-4% for a period of 5 hours, so no app sucking the battery in the sleep mode.
If i use EDGE when the battery is Full for about an hour I get battery drain of 20%
Would love to know more details on which ROM, Radio and your settings.

OK. There's not much I can say except what other guys who know better than me said here http://forum.xda-developers.com/showthread.php?t=743172
It's all usage/config/settings dependent. There's no secret sauce. Some setups and usages last shorter than others, yet further, some drastically shorter.
Firstly, I don't change something working well nor move from a setup until I've worked with it the best I could. The ROM I use daily is HTC 2.2 with root. The radio is some old one that worked perfect for me: 32.43.00.32U_5.09.00.20. I can give you some details so you can characterize the battery performance on mine better.
- H.264 sub 2.5Mbps 800*480 video playback at 18% brightness lasts 5.5-6.5h with about 15% remaining. This has been repeated more than 50 times since March.
- My average runtime used to be 13-18h since March but I knew something was wrong and drawing more juice than necessary. I kept looking (mainly at the logs). It took me months to figure out it was a few things including my build.prop WiFi/cell settings, A2SD+, my GMail install, battery widgets, eBuddy, Titanium Backup, Chrome2Phone, Pure Calendar/Grid widgets and my 3G baseband reception. Some app versions were buggy and constantly polling and returning random errors in the background. I had to eliminate them one by one.
I rectified such problems entirely and removed all the unnecessary apps installed which I rarely used. I had to revert back to FroYos A2SD with the install location mod. That took me to todays battery runtime which I'm very happy with. Chrome2Phone for instance could stay installed and be disconnected when not in use to avoid the large background drain it caused.
- I run personalized colour calibration with lowered overall luminance but more red and green with less blue sub-pixel luminance. Very near D6500 whites. I also keep most apps and my homescreens dark when and where possible. I disable button LEDs through a widget when not required (much).
- 24-39h is the norm for me in typical usage. Among much else that always includes a few short calls, some YouTube, some StreetView, some TapeMachine (audio record), some Scan2PDF, some Aldiko, some Chrome2Phone and Fox2Phone, some Tapatalk browsing, some XDA app browsing, some Quick App Clean Cache, some SpringPad, some Adobe PDF, max 15mins of MP3 playback, heavy net and NewsRoom browsing, 150-250 emails and messages and constant sync with what I listed priorly. Always 2G though, and whenever I reach areas I know have bad or no reception (causing high drain) that I'll be staying at for more than 10mins, I disable cell (frequently). I've nurtured the habit of putting the phone in standby after every use too.
- 6-9.5h display on aggregate is the norm for me. I use lowest brightness possible or 18% typically. 50% in very bright, direct summer sunlight. Just now the battery ran out after 26 hours with 9.2h display on, 13.5h cell on and 22h WiFi on.
- I have apps I consider junk removed: Facebook, Footprints, etc. The lot. So no sync or auto running for them or their widgets in the background. I also removed the base GMail because logs showed me it carried on running sync all the time even when not set to. I forced the latest GMail APK in and it has no such problems. I removed all battery widgets installed except one since they drain heavily.
- Heavy usage like GPS, lengthy calls, video recording and playback cuts the runtime down drastically which should be conspicuous. I can drain the battery fully in 5h with everything max and running.
-----------------------------------
- HTC Desire via XDA App -

venkig said:
[...]
If my screen is off I lose about 3-4% for a period of 5 hours, so no app sucking the battery in the sleep mode.[...]
Click to expand...
Click to collapse
In contrast, I lose 1-2% over 8-10hours in standby, maximum, with WiFi on. Usually 1%.
-----------------------------------
- HTC Desire via XDA App -

Thats some damn battery life you have there. You are on a Sense ROM? Do you actually use Sense? If so you're either exaggerating or I'm a total fool(I'd prefer the latter).
I've been trying to fine tune the battery, currently I'm using DeFroST 4.9 with SVS 998Mhz @ 1275mv kernel with 17_2 radio. Re-calibrated the battery yesterday and compiled a custom wi-fi module containing fixes for sleep disconnection today morning.
I left it at night around 3 AM with 99% battery, turned off the Wi-Fi/EDGE but kept mobile on. In the morning(Around 9:30AM) I was at around 91%. Gave it a quick charge to 100 till around 11:15 AM. Disconnected it and from 11:20 to about 11:40/45 AM I had quite a heavy chat session over Nimbuzz with my friend. My battery went from 100 to 94% in that time. After that I pretty much left it, picked it up to check a mail once or twice and sent a few messages over Nimbuzz. It is 1:40AM now and I'm down to 89%. All of this was over Wi-Fi, GPS off, Bluetooth off, no tethering no nothing. I got no Facebook/Twitter auto-sync. Only FancyWidget(every 3 hours) and Gmail Push. Brightness is at 2%(Although even then it is a bit bright, maybe it is just me).
I am using Extended control widget to see the power percentage.

th3 said:
OK. There's not much I can say except what other guys who know better than me said here http://forum.xda-developers.com/showthread.php?t=743172
It's all usage/config/settings dependent. There's no secret sauce. Some setups and usages last shorter than others, yet further, some drastically shorter.
Firstly, I don't change something working well nor move from a setup until I've worked with it the best I could. The ROM I use daily is HTC 2.2 with root. The radio is some old one that worked perfect for me: 32.43.00.32U_5.09.00.20. I can give you some details so you can characterize the battery performance on mine better.
- H.264 sub 2.5Mbps 800*480 video playback at 18% brightness lasts 5.5-6.5h with about 15% remaining. This has been repeated more than 50 times since March.
- My average runtime used to be 13-18h since March but I knew something was wrong and drawing more juice than necessary. I kept looking (mainly at the logs). It took me months to figure out it was a few things including my build.prop WiFi/cell settings, A2SD+, my GMail install, battery widgets, eBuddy, Titanium Backup, Chrome2Phone, Pure Calendar/Grid widgets and my 3G baseband reception. Some app versions were buggy and constantly polling and returning random errors in the background. I had to eliminate them one by one.
I rectified such problems entirely and removed all the unnecessary apps installed which I rarely used. I had to revert back to FroYos A2SD with the install location mod. That took me to todays battery runtime which I'm very happy with. Chrome2Phone for instance could stay installed and be disconnected when not in use to avoid the large background drain it caused.
- I run personalized colour calibration with lowered overall luminance but more red and green with less blue sub-pixel luminance. Very near D6500 whites. I also keep most apps and my homescreens dark when and where possible. I disable button LEDs through a widget when not required (much).
- 24-39h is the norm for me in typical usage. Among much else that always includes a few short calls, some YouTube, some StreetView, some TapeMachine (audio record), some Scan2PDF, some Aldiko, some Chrome2Phone and Fox2Phone, some Tapatalk browsing, some XDA app browsing, some Quick App Clean Cache, some SpringPad, some Adobe PDF, max 15mins of MP3 playback, heavy net and NewsRoom browsing, 150-250 emails and messages and constant sync with what I listed priorly. Always 2G though, and whenever I reach areas I know have bad or no reception (causing high drain) that I'll be staying at for more than 10mins, I disable cell (frequently). I've nurtured the habit of putting the phone in standby after every use too.
- 6-9.5h display on aggregate is the norm for me. I use lowest brightness possible or 18% typically. 50% in very bright, direct summer sunlight. Just now the battery ran out after 26 hours with 9.2h display on, 13.5h cell on and 22h WiFi on.
- I have apps I consider junk removed: Facebook, Footprints, etc. The lot. So no sync or auto running for them or their widgets in the background. I also removed the base GMail because logs showed me it carried on running sync all the time even when not set to. I forced the latest GMail APK in and it has no such problems. I removed all battery widgets installed except one since they drain heavily.
- Heavy usage like GPS, lengthy calls, video recording and playback cuts the runtime down drastically which should be conspicuous. I can drain the battery fully in 5h with everything max and running.
-----------------------------------
- HTC Desire via XDA App -
Click to expand...
Click to collapse
Whoa ! Amazing post there. This should keep me occupied for quite some time to figure out what the heck is going on with my battery. The battery life what you are getting is really good and that is what everybody should get provided they figure out what the heck is sucking their battery that bad. Lotsa things and apps you have said drains the battery is on my phone and I haven't even started looking at logs in detail. Itz been only couple of weeks since I have this phone so I'll defn start looking into this issue.
Few questions
1. What issues did you have with your build.prop?
2. What battery widget are your currently using ?
3. You have mentioned A2SD+ also is a battery drain, was it a particular ROM's implementation of A2SD+ or older version of A2SD+ or A2SD+ in general causes battery drain ? Would be great if you could link us to the location mod

OK, It is 7:05 PM now and I am down to 70%. Nimbuzz was on all the time along with Wi-Fi(Although I don't know what happened but it switched to EDGE as if it lost Wi-Fi connectivity, Wi-Fi wasn't disabled, just disconnected). And I pretty much haven't touched it since 1:40 PM. Not as good as I hoped, but still kind of decent.
And my Wi-Fi strength isn't that great either, it is either 1 or 2 bar out of 4.

Well, I haven't done any such kernel modifications intentionally. Never had any need to either. 14.5h since last charge now, cell on 5h, WiFi on 12.5h, display on 2h and 76% remaining (actually, those stats were collected and written an hour back). The Desire display has been verified to consume at least 70% of the total device power when the screen is on. So you can't get more hours with display on if it didn't run as such.
It's HTCs ROM so of course it is using Sense. I can't do without most HTC added goods in Sense. Let alone the Mail, Bookmarks, Calendar, Stocks, Copy/Paste, Lookup, Clock, Gallery and Camera apps and widgets. The widgets I depend on work well only on the HTC ROMs I've tried. The missed Sense goodness combined with the bugs and problems I had on AOSP ROMs were extremely problematic so I moved back. Even my video recording and native playback is much better on this ROM.
To be frank, you've hardly had the phone so you'll learn much more yet. And it comes through search->reading->experimenting first. 1-2 weeks is too little for even figuring out most of the basics, unless you're moving from a similar phone and OS. For one, you'll need to actually read the linked thread to see what many observed and experienced. It took me and many others 6 months to learn things and get to this stage. Every other day I was testing and monitoring. But be aware that you can't, for instance, have the exact same setup and usage as me to have the same resultant battery life.
Had you read the linked thread you'd also be aware by now that bugs were filed for inaccurate % readings by Androids Battery Usage section. However, its time tracking was reliable in my testing.
- On your typical full discharge, how much time and % is listed under Display on?
- And for cell?
- Which A2SD are you using?
- Static wallpaper/color?
- Animation settings?
- Location on?
- Network location errors in logcat?
- Cell network chosen auto or manual?
- Did you mention all the widgets on all homescreens?
- OSMonitor/CurrentWidget values in idle screen on and idle screen off?
I use EC and SwitchPro widgets too but their battery widgets (like you mentioned) are known as ones with high consistent drain. The EC dev also corroborated this in its thread under the Themes section.
The 'idle' drops you get don't make sense to me unless there's fundamental hardware/software activity you haven't properly monitored and logged. Even kernel and I/O usage in the background. You'd be surprised at the difference one buggy underlying feature can make.
-----------------------------------
- HTC Desire via XDA App -

If you're actually asking those questions, here goes. Note, I am at 66% and the time is 8:56PM. And after this I'm gonna nandroid this ROM and try SuperVillainHD just for the kicks. Also, can it be that since the phone is relatively new, the battery is not up to its full potential?
Q1, 2) Battery usage is :
Display: 35% (35m 37s)
Wi-Fi: 20% (9h 44m 22s)
Cell standby : 15% (9h 44m 22s)
Phone idle: 14% (9h 9m 42s)
Android system: 6% (CPU Total: 9m 35s, CPU Foreground: 27s, Data sent: 7.82KB, Date received: 11.38KB)
Nimbuzz: 4% (CPU Total: 6m 46s, CPU Foreground: 2m 54s, Data sent: 298KB, Data received: 851KB)
Android OS: 3% (4m 1s)
Voice calls: 2% (45s)
Q3) I'm using DeFroST ROM with A2SD+
Q4) Yes, I'm using a static wallpaper
Q5) Animations is set to : All animations
Q6) GPS is disabled, if that is what you mean.
Q7) How can I check this and what would it show?
Q8) Didn't touch this, so I'm presuming Auto.
Q9) I'm not sure, so here goes. I got a Twitter widget, Facebook widget, both are set for manual syncing. Got FancyWidget syncing every 3 hours and several harmless icons. I got 3 bars of Extended Control widget and a google search widget
Q10) I don't have those, are they available in market? Do they consume battery?

venkig said:
1. What issues did you have with your build.prop?
Click to expand...
Click to collapse
I'll have to open the file for that to check exactly the changes I made. I didn't really follow anyone, just went off my own understanding and intuition. If I try to access the dir or open the file whilst the phone is not in Recovery, it'll force a reboot so I'll give more details later on this when I'm near a PC.
2. What battery widget are your currently using ?
Click to expand...
Click to collapse
Just this: http://bit.ly/cNQUVd
3. You have mentioned A2SD+ also is a battery drain, was it a particular ROM's implementation of A2SD+ or older version of A2SD+ or A2SD+ in general causes battery drain ?
Click to expand...
Click to collapse
FroYos A2SD was nice but I needed much more space and was trying A2SD+ with various ROMs as well as manual use on HTC ROMs. Endless problems such as very remarked, consistent sluggishness in basic functioning, total boot and app load slowness, including high, persistent background CPU and IO loads and very poor SD card transfers over USB and WiFi made me sack it. I lost a class 4 16GB Kingston SD card with errors inside 2 months. I transfer 2-4GB in/out daily and many transfers started failing. Widgets bugged out frequently when you needed them most and had to be all re-setup. Video record and playback became dis-able. The phone became useless except as a toy. That's not what I bought it for but as a helpful companion. I eliminated everything in question. It was simply the SD card [over]use compared to internal memory. This: http://forum.xda-developers.com/showthread.php?p=7025105
Would be great if you could link us to the location mod
Click to expand...
Click to collapse
I simply typed the command through adb but:
http://www.androidpit.com/en/androi...deandroid.modil/Mod-Install-Location-For-Root
http://forum.xda-developers.com/showthread.php?t=778738
Even though I used this, I still have select applications not on the SD card upon learning that they worked far more consistently and properly with lower power and CPU usage when using internal memory. Trial, observant monitoring, and error.
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- HTC Desire via XDA App -

[Q] Seidio 3000mAh Battery

I've had this battery for several months now and I'm just now starting to wonder why my battery life is so abysmal as compared to others with it. It'll probably last around 18-20 hours a day with about a half hour of music playing through Winamp, JuiceDefender, Lookout, and Tasker running constantly, an 100-800 core clock, and low brightness.
Somehow, I think I should be getting better battery life. It has been similar to this regardless of what ROM I use.
Do you all think it's the battery or just the phone?
Obviously, I'm unable to return it. I would just like to know what others think.

Kanojo said:
I've had this battery for several months now and I'm just now starting to wonder why my battery life is so abysmal as compared to others with it. It'll probably last around 18-20 hours a day with about a half hour of music playing through Winamp, JuiceDefender, Lookout, and Tasker running constantly, an 100-800 core clock, and low brightness.
Somehow, I think I should be getting better battery life. It has been similar to this regardless of what ROM I use.
Do you all think it's the battery or just the phone?
Obviously, I'm unable to return it. I would just like to know what others think.
Click to expand...
Click to collapse
POSSIBLE ISSUES:
(Answering these yourself should help pin point the problem just by re-reading your own answers)
- How "old" is the battery?
- What are your min/max CPU frequencies?
- What services are running in the background?
- Did you have this problem on the stock battery?
- What app do you mainly use?
- Does that app drain battery?

Kanojo said:
It'll probably last around 18-20 hours a day with about a half hour of music playing through Winamp, JuiceDefender, Lookout, and Tasker running constantly, an 100-800 core clock, and low brightness.
Click to expand...
Click to collapse
With optimal settings and unnecessary ram hogging apps removed, you should be able to get more hours than that on the original battery half the size.
JuiceDefender should be unnecessary and I found it to inhibit me more than it proved useful.
Lookout is neat, and I do like it, but as I don't see a huge need for it I don't have it installed.
My personal favorite task killer is Advanced Task Killer which I use to cleanup my phone before locking it, you know, close the various apps I just opened . However, I have disallowed it from auto-killing, as this has proved detrimental and in vain when services killed generally immediately restart themselves and consume less battery than the auto killing program attempting to kill them.
A good check on certain apps is to go to Manage Applications under Settings and check your running apps. About 1-2 minutes after a good task kill, check to see which apps have restarted. If any you recognize are running that you didn't start, you may consider removing them. Especially anything that tries to access location services.
Edit: Almost forgot, I don't use any widgets except for Task Killer and Power Control. All others drained more battery than I cared for, and this I tested extensively.

uninstalled: Juice Defender Ultimate and Ram Manager Pro

i ran these through my seat-of-the-pants benchmarks, are there any other for these sorts of apps? , and can't tell any difference. the biggest difference maker that i have noticed is Titanium backup and freezing as many progs as i could and a better launcher.
i tested the phone as it initially came out of the box, removing the apps i could via app manager.
next, i ran it with JDU for ~4 days.
Then i ran Tit backup and froze many more apps and ran the phone with JD for 3-4 days.
then installed Ram Manager Pro and ran for a few days, then uninstalled JD and Ram Manager by itself for a few days
and finally uninstalled both, factory reset my phone, ran Tit Backup freezing everything i wanted and am now running that config for several days.
i can't see any change in battery life or perf between any of these.
what's your experience? did i miss the benefits? is there a more scientific way to test these apps on our phone?

I could be missing something, but my understanding of Ram Manager is that it controls how the cache works (RAM cache that is), aka, how previously opened apps are being handled, how long they stay in ram, or/and how often ram getting cleanup, etc. So theoretically there shouldn't be much of battery improvement with that app, only the performance on common used tasks.
As of Juice Defender, I've tried once, and realized it's not for me, I use push mail and listen pandora radio most of the time, it requires internet all the time. But in theory it should significantly save on battery if you don't use phone every second minute, cause it turns off everything and only turns data one every so often to check email, news, etc.
I guess it depends how you use your phone...
Have you tried SetCPU or such?
I use SetCPU to change CPU frequency, set min to 190mhz and max to 1500mhz, and max to 190 when screen off, yesterday with minimum phone usage in 7 hours used up 15%
And I wonder, by default, does Nitro set CPU to max and keep it that way or it also uses scheduling and changes speed as needed?
But I can tell you for sure, the network (HSPA+ here) usage uses as much battery as the screen, if not more...and network through WiFi saves on battery compare to HSPA.

[email protected] said:
I could be missing something, but my understanding of Ram Manager is that it controls how the cache works (RAM cache that is), aka, how previously opened apps are being handled, how long they stay in ram, or/and how often ram getting cleanup, etc. So theoretically there shouldn't be much of battery improvement with that app, only the performance on common used tasks.
As of Juice Defender, I've tried once, and realized it's not for me, I use push mail and listen pandora radio most of the time, it requires internet all the time. But in theory it should significantly save on battery if you don't use phone every second minute, cause it turns off everything and only turns data one every so often to check email, news, etc.
I guess it depends how you use your phone...
Have you tried SetCPU or such?
I use SetCPU to change CPU frequency, set min to 190mhz and max to 1500mhz, and max to 190 when screen off, yesterday with minimum phone usage in 7 hours used up 15%
And I wonder, by default, does Nitro set CPU to max and keep it that way or it also uses scheduling and changes speed as needed?
But I can tell you for sure, the network (HSPA+ here) usage uses as much battery as the screen, if not more...and network through WiFi saves on battery compare to HSPA.
Click to expand...
Click to collapse
that's my understanding of Ram Manager as well. but i didn't notice any perf changes in how fast apps open, close or switch v a Titannium freezing showing good results imo for that sort of thing.
i listen to slacker/pandora but it's mostly via wi-fi, so i was able to configure JD to keep the wifi on and turn off all the other radios but that didn't seem to provide me any benefits.
i have not tried setcpu but will def check it out, thx for the heads-up on that one.
re: network, it doesn't even show as a battery drain on this phone and i am in an LTE area, the 4glte status signal is always on. i was under the impression it was a massive drain, maybe the phone searching for a lte signal is the drain but once it finds one and locks on maybe it settles down. i have no idea but it's not on the list of what's using the battery.

Ram Manager Pro has several settings (Balanced, Balanced-More Mem, Hardcore Gaming, etc...). Did you try any of the others? For me I noticed improvement, but perhaps it's also because of the way I use my phone and that Ram Manager is more suited to my ways and habits... Or maybe it's just placebo and I'm drinking the kool-aid.
For Juice Defender Ultimate, I will say probably one of its' biggest capabilities is locking down the apps that turn on the radio for background updates. A definite battery drain for folks that use a lot of social apps as they compound the use of background updates. I personally turn-off ALL background updates except for mail. So JDU wouldn't tremendously help me.
Lastly, I completely agree with [email protected] about SetCPU. I don't know how the OS handles the frequencies but one of the biggest battery savers is definitely using SetCPU for dropping the min/max CPU speeds to minimum levels when the phone is sleeping.

I installed setCPU and it instantly created a laggy interface. very very noticeable. HAs anybody else tried this app with this phone?

Had this same problem. I actually switched of all apps. The phone on idle does not loose that much juice. Overnight I maybe loose 8-10%. I turn data off at night using Tasker.
Sent from my LG-P930 using xda premium

update
I've still been farting around with these apps, going back & forth between using them and not.
best I can tell ROM manager provides ~5% increase in ROM management, which is pretty good for a couple bucks eh.
JD is so much harder to gauge/compare. I think it does defend the juice but I can't tell how much. The one thing I do not get about the app is how it continues to show increased battery savings over the previous 48 hours. I can see how this works when the app is 1st installed but at some point over time that number should = 1 right? JD can't keep stretching battery life 1.5x over its own management system.

scott0,
You're right, unless there's some heuristics built in (probably not).
Sent from my LG-P930 using xda premium

Anyone using a good stats widget that would show mhz of cpu/baterry/ram?
Something light that would not eat battery. I used the one that came with antutu cpu master but that caused more problems.
Sent from my LG-P930 using Tapatalk

Just out of curiosity, do you have to be rooted to use Juice Defender? When I select the app in the market it tells me "This item isn't available by your carrier."
Are they telling me that AT&T has blocked a power saving app?

Battery life stats and questions

What's a good figure for battery life on the GS3? The best I've got is about 31 hours using on demand and bfq. Any one got better life using other settings? I heard someone getting about 43 hours life but that seemed to be a little unbelievable. Let me know what your getting
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

What you reported is definitely "the average". Most actually only get a day, if they're lucky of moderate use and have to plug in before sleep every evening and get going on charge in morning. So its more like 15 hours actually. And your 31 max is very common high end for people who've stretched it out.
I'm not sure if you're stock rom or not and if rooted either but that makes a big difference.
I'm rooted ( and would ALWAYS RECOMMEND ROOT FOR EVERYONE EVEN UF NOT FLASHING ANY ROMS AND STAYING ON STOCK. The ability to have full control is important.
Changing kernels and more importantly, undervolting, will give you that longer life you're looking for.
I'm currently on KyanROM with either Ktoonez or Faux kernel (heavily tweaking and testing both) and have this phone beautifully undervolted to exceptionally low and very stable mv numbers! Thus getting me that lovely 36-45hour average (you mentioned you saw posted elsewhere - yes it is possible and many are doing it). I basically only need to plug in every OTHER EVENING or night between 6pm and midnight depending on usage and I'm a moderate to heavy user (with a lovely 3-5 hours of screen time as well) AND I also have my phone overclocked to 1.8Ghz! Surprisingly, the oc doesn't make much battery life impact at all because the phone isn't constantly having to run at high levels, only in short spurts. Actually, due to rooting and kernel change I'm able to have my phone run as low as 192Mhz during much of its general activity and deep sleep ( which I get a ton of as my phone basically always goes into it when the screen goes off). This saves me A LOT of battery life.
I also use LTE, which is actually one of the biggest if not the largest battery hog, next to screen time of course. But with that being said I only use it when needed and have it turned off when not in use.
As for my peak I was able to squeeeeeze out 87 hours once, on my stock battery BUT that was with some abnormal(for me) measures that really help conservation. Ie, no LTE, under clocked to 1.2Ghz for good part of the three days, much less then normal screen time over the period of which I used it at lowest level with even further reduction via screen filter, I actually used airplane mode during my three overnight sleeps (which I seldom use but if you can hack it, do it! It can really save battery overnight. My current setup basically SIPS MY BATTERY AT 1% EVERY 3.5-4 HOURS OVERNIGHT WHEN IN AIRPLANE MODE), mobile data was off for most of time but did use my wifi at normal level (wifi uses less especially if good signal with few reconnects/scans), used my typical low UV numbers, kept my notification updates/syncs/wakelocks to a minimum and lastly kept my memory virtually clear if unnecessary background apps.
Doing ALL of this allowed me to get OVER THREE DAYS BATTERY LIFE. But keep in mind I seldom do many of these battery saving tips on a regular basis but some do and if you can, they WILL work to extend your life substantially!
To wrap up (this long winded post/reply) I'll give you my general UV mv range numbers and the typical everyday simple battery saving methods I use.
1.My voltage at lowest clock of 192mhz=800mv with gradual (smooth and almost linear curve) increase up to a mere 1200mv at a whopping 1.890Ghz clock.
I use NOOP scheduler with ONDEMAND governor most of the time, sometimes SmartassV2.
My screen off and deep sleep use this lowest 192 clock speed and with no wakeup lag.
2. I use my screen at 0% brightness most of the time (except when outside or in high lighting environment). I use the brighrness widget app to control this as it is easier and works better then stock settings. I actually even further reduce my brightness with Scree Filter App. That app is awesome and often use it solely for brightness control because it has full control and can dim it to basically full black if wanted. Which is MUXH lower then stock control. Fyi I use my phone a LOT more at night or in dark environment thus allowing me to dim screen HEAVILY yet it still is actually plenty bright with ample contrast in dark environments to do everything. This saves on my battery HUGE!
3. I use LTE when needed and GSM/HSPA+ when not. Seldom turn of mobile data altogether. I do turn off wifi when out and only using mobile data.
4. I use Screebl app to have screen turn off when not in use. Its great liitle app. Basically let's you turn down screen timeout to 15 seconds or less so screen is never unnecessarily on but it always stays on when in use due to the accelerometer and it knows when the screen is not flat on table! Its very annoying when browsing or doing stuff where screen isn't touched for long periods and the screen goes to sleep! But this stops that! So its always on when upright or in use and when phone down it turns off immediately.
5. Very important step and can take some time and research but making sure to keep partial wakelocks and apps keeping device awake to a bare minimum! DEEP SLEEP IS VERY IMPORTANT TO SAVE BATTERY! You basically want it to go into that every time your screen goes off and to stay in it uninterrupted for as long as possible. And many users phones are NOT making it into deep sleep due to partial wakelocks and they don't even know it or how to fix it. Not getting deep sleep can unnecessarily kill your battery!
I use a few tools here: Better Battery Stats/GSAM Battery Monitor/Battery Monitor Widget from within System Tuner Pro (which is my also my main and highly recommended tuner app for CPU oc/uc and UV,etc.).
These apps really help to determine what, if any, apps are causing partial wakelocks ( displaying in wake number amounts and overall wake time) allowing you to determine what to do to fix the problem and let the phone gets as much battery saving deep sleep as possible.
6.I'm not big on auto app killers and actually recommend against them as Android ICS does this already very effectively but do keep in mind that the more active background memory that is used, the more battery the battery is drained. So I personally kill unnecessary apps myself from the background whenever possible to save a little battery here and there. Using the apps listed above in #5 can really help to detect a nasty background app or service that is quite possibly unknowingly using a ton of CPU and/or memory, thus draining more battery and also often just slowing down your phone!
7. For those who can use it Airplane Mode is a big saver! Try overnights if wanted as long as missing notifications, emails, calls, updates, etc is alright for you. I seldom use it but it does help.
8. I almost never use my Bluetooth and GPS but when I do that is the ONLY time they are on. They get turned off immediately and really be careful with the GPS in particular because you might be surprised how many things on your phone will use it in the background, sucking your battery!
9. Be careful with sound and vibration levels. Haptic feedback too. I don't do much here but its anotherctip nonetheless.
10. Lastly is treating and charging your battery right! I found an amazing site linked down below in a couple of articles that really explains these batteries and how they work in a very in depth technical level this is still not too hard to follow. Aside from the two links I posted check out the others on the left menu as there is a ton of useful and educational info!
http://batteryuniversity.com/learn/article/how_to_increase_the_runtime_of_your_wireless_device
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
OK I've rambled on waaay too long here. Maybe I'll take this and post a battery savings tips thread with it lol. "10 points"!
Btw I've just received both my 3300mAh and 4400mAh capacity batteries. So I have much testing to do on those too and I plan on reporting back on them as well. Also with screenshots for data and proof...I can and will also post screenshots for all of the numbers and stats I've posted here today with my personal phone/battery accomplishments.
Hope this helps some of you out there because yes this phone can be known for terrible battery life but it CAN be tweaked to SUBSTANTIALLY IMPROVE that life to high standards and keep up with the best of them!
Sent from my SGH-I747M using xda premium
On Stock battery - Kyan Rom/Ktoonez kernel (at this moment)

Seems about right. My phone is completely stock and if I really wanted to I could even use it for 2 work days. I usually charge it over night though. I used it for 2 days though while at work, and with 3 hours of screen on time I was down to 7% battery. Around 40 hours on.

I was stocked rooted using Sammy kernel. On demand BFQ. I'll try on demand noop and see if that helps. My screen was about 35% brightness.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Can I hijack a little here? My battery seems to be atrocious. It was okay stock after my first 3 full charges I was getting about 12 hours and 2.5 screen time.
Here is what I've done with my phone since:
Flashed to debloated stock Rom
disabled remaining unneeded apps (example ATT wifi app)
disabled Wifi
disabled bluetooth
disabled GPS
disabled GPS autorun states
disabled 4g
disabled autobrightness, set to 15%
disabled location reporting
disabled Push email with Exchange
disabled Motion
disabled auto google backup
disabled keytones and vibrate on all button presses
disabled touch key lights
disabled Svoice
disabled streaming on googleplay, only plays from memory card
disabled Google Now
fixed the cell standby bug (even though it may not impact battery figured wth)
Uninstalled FB
Set all Autosync accounts and email to sync only once per day
No widgets (only Google play music, Smemo note, flashlight, and folders)
Running save power mode for low power screen, no haptic, and auto adjust screen to blacks
Running mostly black wallpaper, No live wallpaper.
Running medium intensity vibration
I ran battery stats and got a lot of wakelocks from googlemaps and exchange so I disabled the push email and set it to once a day. Google maps I disabled latitude, and shut down the autostarts with gemini.
It's getting to the point where the phone is basically a dumbphone just so the battery can make it while it sits next to me at work. Today I have 48% after 8 hours and 50 minute screen time and 20 minutes of google play (only playing from on SD card not streaming).
Any ideas? It seems like I'm getting less than average.

All I did was also flash debloated rooted stock. Set to top out at 1.5ghz power save on. On demand BFQ schedule. Screen brightness as low as I can to still read. And got 32ish hours. I'm going to try OnDemand and noop like the other guy said and UV a lot more and see how close to 40 hours I can get
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chrisj22 said:
All I did was also flash debloated rooted stock. Set to top out at 1.5ghz power save on. On demand BFQ schedule. Screen brightness as low as I can to still read. And got 32ish hours. I'm going to try OnDemand and noop like the other guy said and UV a lot more and see how close to 40 hours I can get
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Can u link me on the bfq? Having troublefinding what that is.
Also, is that the built in power save that limits the processor or some other software?

I believe if you flash Sammy kernel it has bfq. I am on task's CM10 and kernel and battery life seems poor compared to CM9 or stock rooted
Sent from my SGH-I747 using xda app-developers app