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Hi everybody!
So I am using CyanogenMod 7 Beta5.1 And I'm having huge battery problems...
It's draining abnormally fast (30% lost during night).
It started to happen when I got problems with my Defy and flashed 3.4.3-11
And now updated to 3.4.2-117.
Before these problems it usually drains only 3% during night!!
Also everytime I boot my phone, when it's completely booted I hear the camera sound (when you open camera app,it makes a physical sound).. It never happened before...
I overclocked my phone to 1100Mhz but I don't think it really affects the battery (when screen off it's set to 500Mhz)
Please help me!....
I was having that problem and I turned fast boot off and it solved the problem for me. The phone doesn't really shut down all the way if fast boot is on.
Sent from my Desire HD using XDA Premium App
schultzy001 said:
I was having that problem and I turned fast boot off and it solved the problem for me. The phone doesn't really shut down all the way if fast boot is on.
Sent from my Desire HD using XDA Premium App
Click to expand...
Click to collapse
fast boot? The one from setvsel?
schultzy001 said:
I was having that problem and I turned fast boot off and it solved the problem for me. The phone doesn't really shut down all the way if fast boot is on.
Sent from my Desire HD using XDA Premium App
Click to expand...
Click to collapse
how can u shutdown fastboot? wanna give this a try...
schultzy001 wrote
"Sent from my Desire HD"
um... a new thread? really?
by the way, i have this problem too since beta 1.. i don't know why..
but i still like it because CM7 is so fast without OC.
i try to compare froyo and CM7, with same apps and same apps settings,
CM7 lost the battery faster than froyo, even when in flight mode.
the strange one is, even the memory usage is so low on CM7 (no motoblur crap),
but why battery still drains so fast..
in battery usage statistics,
on CM7, it shows that "Display" is the one who responsible drinking so much juice (60% and the other is just 3-10%).
on froyo, is not the "Display" which responsible drinking most of the juice, it is "Cell Standby".
i thought gingerbread should have good battery management, and the battery should last much longer than froyo.
i'm sure it is a bug on CM7 for Defy.
but whatever, at least we have a Gingerbread on Defy from a great dev like Quarx.
while motorola working so slow on releasing froyo with its motoblur crap.
Hi guys,
I'm having this issue too, and i note since a few days ago. I don't know why, but my Defy is sucking his battery too fast. Could it be a bug ?
it's a little bit difficult to follow the bugs and the solutions in a huge thread like the other one. so i think that this that could be a mayor problem for all of us should be treated in a differente thread.
I use Motocharge since 1 day to follow how it discharge during the day.
I say it in the other thread, the phone loose a lot of battery when i don't touch it. sometimes it loose like 5% in 15mins and i don't touch it. maybe it doesnt sleep well, i don't know..
I hope that Quarx can solve this, because in the other betas of him i don't have the problem. only in the 5.1.
battery draining
I think It´s a bug, because I used before BETA 5.0 and without any battery life was almost 3 days in normal use, bur now with BETA 5.1 only two days or less.
By the way I´d proved with 3 or 4 diferent roms, but the same result.
But I´m sure Quarx will deleted this bug in the next version
same problem for me,but b3 and b4 is ok
Sent from my MB525
apart from low battery life.....i noticed substantial increase in battery temp..normally its 32-34 deg cel.....but wid CM7 it raises to 42-45 deg cel.....waiting for a solution so that i can come back to CM7...
I use Toggle 2G/3G to switch to 2G when phone goes to sleep. I set wifi to never sleep and use it as much as possible over 3G. I also set brightness levels long time on 16 so that in the shadow I always use just a little energy. This way I almost get double battery live.
+ it's better for battery to charge every night, empty or not, and let it go lower just occasionally.
Link to Toggle app:
http://forum.xda-developers.com/showthread.php?t=739530
yes, this issue is really annoying, 30% battery drain overnight.
something is definitely running unreasonably... hope find it.
I think it depends upon what "type" of defy u have. My battery that only used to last for 12-14 hours in eclair now went for 2 days last 2 charges.
Also depends upon how many widgets and apps u running... hard with mobile phones to judge battery as so many independent variables.
Sent from my MB525 using XDA App
OK Guys, this is an old thread, but I think it should be deleted or at least people should read this before registering this thread in their mind:
The battery drain 'issues' were almost always due to two things:
1- For the beta 6 version or older of CM7- there was a bug with the auto-brightness which was heavily stressing the cpu and making the system lag badly - hence: the battery drain. To fix this: you have to stay on auto-brigthness. So just make sure that the auto-brightness box is checked and ON. Additional info: some users also complained about the 4 action buttons (menu, home, back and search) not lighting up ---> fix: un-check auto-brightness and re-select it: done!
2- Users did not set their Network baseband properly. Fix: use the Defy Baseband Switcher application and select the newtwork that applies to you. If you don't do this, your phone might have signal reception (phone and sms) but it will use more power to communicate and get a proper lock to your phone service provider.
I don't know what is the exact build # that brought the Defy Baseband Switcher (as far as I can remember, CM7 beta 4.1 had it) but all the 'newest' CM7 will have it anyway.
And if you want to further decrease your battery consumption, you can still do it like this:
- use the bootloader cpu settings: OC'ing and governernor type to change the cpu speed. [From CM7 default 1000MHz to the Defy's stock 800MHz] and change the governor type from "interactice" default to "on demand" [OK: I'm not sure about governor change will improve or not but that is the Froyo's default I believe].
- install SetVsel to underclock --> by lowering cpu Vsel upon the 3 cpu frequencies. Do some reading; you might need to uncheck its "[email protected]" option AND also have Milestone Overclock installed for it to work properly.
- USE a recent nightly (post May 29th: there was a possible problem with custom recovery backup restoring prior to that) and you will be able to set your screen display brightness as low as you want [fix the bug described in point 1- above].
- use DroidWall and/or the CM7 built-in applications' permissions control to block some apps' access to internet and networks. BE WARNED though: changing permissions CAN make an application stop working or create problems - don't submit bug reports if you do that.
- Avoid high usage of apps that drain battery quickly (TuneIn radio is power-thirsty one that comes to my mind...) and apps that have to create catalogs and thumbnails (ex: Photoshop, Titanium Backup, Gallery, ...)
- If possible: use 2G network only, disable data synch, auto updates of apps and social networks.
- set your WiFi sleep policy to "Never" [while in Wi-Fi settings, press menu button/ Advanced] and avoid frequent Wi-Fi ON/OFF switching.
- Lower your display brightness and switch that screen off at any chance you got!
There are many other ways I'm sure, but those are the main ones anyway...
I've seen high temps yesterday on my Defy, but I later realized that I forgot to re-set my Baseband after a CM7 nightly install... It 'could' also happen when a (background) service goes "beserk" and overload the cpu: absolutely not necessarily related to CM7 --> faulty apps and bugs happen... Just stop and clear the cache of that app and/or reboot your phone and problem should be gone.
CM7 is now really stable; a VERY FEW little hickups remaining still (like with the camera, but negligeable), but the large amount of new user controls that it brings clearly overcomes the 1 or 2 minor bugs left --> IMO, just having control over each and every applications' permissions justifies forgetting about using Eclair and Froyo. Problems in CM7 are being actively sorted out and new user controls and other useful options are added in almost daily manner through the nightly builds.
I'm categoric: on CM7, I now have more control over where my battery juice goes that I've ever had on Froyo....
So please stop alarming people with high battery usage drainage on CM7 and give it a try by following the right proper steps; I'm sure that you won't regret it.
marhensa said:
um... a new thread? really?
by the way, i have this problem too since beta 1.. i don't know why..
but i still like it because CM7 is so fast without OC.
i try to compare froyo and CM7, with same apps and same apps settings,
CM7 lost the battery faster than froyo, even when in flight mode.
the strange one is, even the memory usage is so low on CM7 (no motoblur crap),
but why battery still drains so fast..
in battery usage statistics,
on CM7, it shows that "Display" is the one who responsible drinking so much juice (60% and the other is just 3-10%).
on froyo, is not the "Display" which responsible drinking most of the juice, it is "Cell Standby".
i thought gingerbread should have good battery management, and the battery should last much longer than froyo.
i'm sure it is a bug on CM7 for Defy.
but whatever, at least we have a Gingerbread on Defy from a great dev like Quarx.
while motorola working so slow on releasing froyo with its motoblur crap.
Click to expand...
Click to collapse
Display instead of cell standby showing up first in battery consumption means that Froyo (or CM7) uses less battery. The display just stayed the same of course, unless it's tuned brighter, the percentage increased because it's a relative measurement.
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Jawdude said:
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Click to expand...
Click to collapse
I'm a truck driver and I'm a heavy user.
I did too before I made the changes below. These all work with the Stock Rom.
1. Installed No Lock (so that I don't have to swipe the screen to unlock, just push the power button)
2. Set screen to turn off in 30 seconds.
3. Installed Brightness Widget (allows changing the brightness from the home screen
4. Installed Screen Filter (lets me really darken my screen at night.
Try those and see how you do.
5. I then flashed the Infused Rom (I now get up to 10-14 hours)
Jawdude said:
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Click to expand...
Click to collapse
Custom kernal and rom
Running refused and infusion 1.8 rom and I get 14 hours with heavy data use
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Also, Turn off GPS and Wifi when you're not using them.
Battery
After much experimenting and monitoring of battery use I find that the biggest drain is the screen display, so go to settings-->display-->brightness and lower the screen brightness as low as you comfortably can. Also when you you are not using the phone make sure the screen is off, I have trained myself to automatically hit the power button every time I put down the phone. If you listen to music through your phone make sure the settings on your music players allow the phone to play when the screen is off and turn the screen off while it plays.
GPS also drains the battery, so I keep it turned off when I don't use the Nav. When I use the Nav I know the battery will drain at a rapid pace, nothing you can do there, even if I have the phone plugged in to car power while using Nav it still drains the battery! Drains slower than unplugged navigating but still drains.
If your watching videos then your S.O.L. there's really nothing you can do that will increase battery life enough to make a difference during video playback.
I get 10-12 hours with regular use and stock rom. Worst was 8 hours best was 24.
Thanks for all the advice this has really helped my battery
Truckerglenn said:
I'm a truck driver and I'm a heavy user.
3. Installed Brightness Widget (allows changing the brightness from the home screen
There was a recent post that showed a shortcut for changing the screen brightness from the homescreen without any additional software. First, turn off auto brightness. Second, tap and hold the menu bar at the top. Third, slide left to reduce the screen brightness and right to increase screen brightness.
Click to expand...
Click to collapse
menzoom said:
After much experimenting and monitoring of battery use I find that the biggest drain is the screen display, so go to settings-->display-->brightness and lower the screen brightness as low as you comfortably can. Also when you you are not using the phone make sure the screen is off, I have trained myself to automatically hit the power button every time I put down the phone. If you listen to music through your phone make sure the settings on your music players allow the phone to play when the screen is off and turn the screen off while it plays.
GPS also drains the battery, so I keep it turned off when I don't use the Nav. When I use the Nav I know the battery will drain at a rapid pace, nothing you can do there, even if I have the phone plugged in to car power while using Nav it still drains the battery! Drains slower than unplugged navigating but still drains.
If your watching videos then your S.O.L. there's really nothing you can do that will increase battery life enough to make a difference during video playback.
I get 10-12 hours with regular use and stock rom. Worst was 8 hours best was 24.
Click to expand...
Click to collapse
How does it drain your battery when its plugged into the car? I have never seen that on any cell phone. That my friend is messed up if true.
reissy said:
How does it drain your battery when its plugged into the car? I have never seen that on any cell phone. That my friend is messed up if true.
Click to expand...
Click to collapse
It seems that Samsung ****ed up and included phone CPU/screen/etc usage when measuring battery charge current.
This means that the 600 mA stock battery charge current limit isn't just going to the battery, it's split between battery/screen/CPU. If screen/CPU/etc go above 600 mA (Navigation at full brightness seems to be the most common way), battery starts draining.
It also means that unless there's something I'm missing (which I could be since the MAX8998 datasheet is super-ultra-secret), our phone isn't going to be able to do proper charge termination - if the screen is on/CPU is running, it will cause a falsely high battery charge current reading, which will cause charging to fail to terminate.
Juice defender
I found that juice defender helped my battery and i just use the free version it's a great app
I used Iphone 3g 3gs 4. None of them drain battery like this one. First time use Android phone and getting a bit disappointed of this phone. It's draining 2% every 5 mins and im using stock Rom.
Sent from my SAMSUNG-SGH-I997 using XDA App
Install a ROM. Infused v2 nearly doubled my screen-on battery life and tripled my screen-off battery life.
sweetboy02125 said:
I used Iphone 3g 3gs 4. None of them drain battery like this one. First time use Android phone and getting a bit disappointed of this phone. It's draining 2% every 5 mins and im using stock Rom.
Sent from my SAMSUNG-SGH-I997 using XDA App
Click to expand...
Click to collapse
That's excessive... Rogue app maybe?
ptgptg said:
Truckerglenn said:
I'm a truck driver and I'm a heavy user.
3. Installed Brightness Widget (allows changing the brightness from the home screen
There was a recent post that showed a shortcut for changing the screen brightness from the homescreen without any additional software. First, turn off auto brightness. Second, tap and hold the menu bar at the top. Third, slide left to reduce the screen brightness and right to increase screen brightness.
Click to expand...
Click to collapse
Thanks I never new that
Sent from my SAMSUNG-SGH-I997R using XDA Premium App
Click to expand...
Click to collapse
look in about phone battery use to identify the biggest battery user, it should be the screen. anything else and there is a problem.
the cell standby may go high on froyo rom, turning on flight mode and turning it off will correct that, it's an android bug.
on gingerbread the android os or android system may hog battery occasionally. some think it is the wifi sleep policy but it pops up on me without setting the sleep policy. the fix for that is to pull the battery for a couple minutes and put it back in and restart the phone.
next manage the screen brightness
install a custom rom, there are issues with certain firmware keeping sensors active wen they shouldn't be.
turn off unneeded sync options (i find that auto fetching my email uses a lot especially with my gmail already set to sync),
use wifi when you use the internet if possible, turn it off when out and about.
monitor cpu useage of apps that are cached in the task manager
kill apps that use cpu
if needed turn the max cpu clock down to 800mhz
set "use wireless networks" for location when possible for general location (limited to city level at times)
Dani897 said:
look in about phone battery use to identify the biggest battery user, it should be the screen. anything else and there is a problem.
the cell standby may go high on froyo rom, turning on flight mode and turning it off will correct that, it's an android bug.
on gingerbread the android os or android system may hog battery occasionally. some think it is the wifi sleep policy but it pops up on me without setting the sleep policy. the fix for that is to pull the battery for a couple minutes and put it back in and restart the phone.
next manage the screen brightness
install a custom rom, there are issues with certain firmware keeping sensors active wen they shouldn't be.
turn off unneeded sync options (i find that auto fetching my email uses a lot especially with my gmail already set to sync),
use wifi when you use the internet if possible, turn it off when out and about.
monitor cpu useage of apps that are cached in the task manager
kill apps that use cpu
if needed turn the max cpu clock down to 800mhz
set "use wireless networks" for location when possible for general location (limited to city level at times)
Click to expand...
Click to collapse
Actually, high cell standby is OK if the phone is screen-off often.
Cell standby is always my top user - but my phone is sitting on my desk with the screen off frequently, in a location with weak signal. Weak signal makes cell standby usage go WAY up.
Syncwifi application is awesome for extending sync settings to gain more battery
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Using titanium backup I froze drm content 2.2.1 and this significantly increased my battery life.
Sent from my Infuse. It is what it isn't.
JuiceDefender!!
I agree JuiceDefender works!! I had to charge in the middle of the day. Now with moderate use it will last all day Im on stock Rom.
I easily get 2 days out of my Infuse, no idea how some of you are managing to only get 8 hours. After rooting my phone and freezing the bloat i easily get twice the battery life of my prior iPhone 3GS.
I wanted to share with the board a very simple (can't believe I didn't think of that) kind of way of finding out what is draining battery and disabling/uninstalling it.
My first 3 days with CM9 Alpha 3 where pretty ehhh with battery. I was draining a lil more than 10% an hour. Now I am probably 10% for 2+ hours.
Under Settings > Developer Options > Enable Show CPU Usage. Obviously I don't keep this on all day. I turned it on just to see what is in use when my phone is pretty much supposed to be idle/doing nothing. I was surprised to see how some apps where constantly popping up on the list. I spotted 2 weather apps I had constantly on this list and watchdog lite. I uninstalled them and started using Google news and weather for my weather needs and now when my phone is idle, 95% of the time its the basic system services that are running. All I did was uninstall 3 apps, which I barely used. It is crazy how big of a difference it made. Mind you I have Wifi and Bluetooth on all the time and my screen is set to Auto Brightness.
Just something I think everyone should be aware of and make use of when they have a battery problem.
P.S. I also have my governor set to conservative.
As some of you have been complaining about your Infinity's poor battery life, I thought we should start a thread on getting more out of its battery. I invite you all to share your experiences, hopefully we could come to sth helpful together.
Perhaps when the development's carried on further by more XDA developers, we can split this to stock ROM and custom ROMs, as probably the latter will have more of these already included.
1. Arguably full charge and discharge does nothing good on modern Li-Ion batteries and it's rather advisable to keep it balanced - discharge a little, don't push it with charging all the time (however in case of the Infinity, as with many other devices, the charger will just stop consuming energy after [almost] fully charging your device). There is one reason for doing a few full discharges and charges however - so that the battery monitoring apps/widgets can learn more about your battery's life and power consumption.
2. Monitor your battery life and monitor it wisely (don't use power-consuming apps and widgets). I personally like Battery Monitor Widget, as it gives you mA and % / hour (either drain or charge), which is pretty cool, as you can see how much your usage exhausts your battery in real time. This way I've found out that switching the WiFi off while reading books actually gives me battery drain closer to 10%/h than 15%/h etc. You can see some other in this apps thread. Try different apps and see what fits you best. Don't rely on system battery usage stats, see what other apps show us and what apps and processes drain the most of your battery, show most wakelocks, etc.
3. Use as low power mode as you need (administered most easily through ASUS/Android notification bar on the bottom of your screen). There are three power modes:
power-saving (keeps your CPU at 1 GHz according to some apps, 500 MHz according to others) <- can give you up to 2 additional hours
balanced (keeps your CPU at 1,5 GHz)
normal / performance (keeps your CPU at the highest speed - in stock kernel 1,7 GHz for the 1st core and 1,6 for the others)
You have to try these for yourself. Most games run well on balanced, but may sometimes need the performance mode (keep in mind that overheating your CPU and GPU may cause the clocks to actually slow down). You may also find yourself happy with the power-saving mode, which really helps your battery to last longer, but I've noticed issues with some apps while running it (problems with pdf rendering, for example), as it probably changes more than just the CPU clock speed, but also the system behaviour. I hardly ever leave the balanced mode, mostly when curious about benchmark results
There are also different CPU governors in Android/Linux kernel, which you can change if you are rooted, but perhaps leaving the default "interactive" one on should serve you well (you can also try "conservative", but it has been argued it doesn't save your battery so well in the long run).
(if rooted) You can also use CPU management apps like SetCPU, create your custom profiles or use the default ones according to your needs (for example ).
4. In ASUS setttings switch on both power-saving options at the very bottom of the list (WiFi and dock deep sleep [the former is the same as choosing "never" in WiFi advanced settings]).
5. Keep the screen brightness as low, as you can. It's better to adjust it manually through the notifications bar or a widget than to switch auto-brightness on (some recommend LUX app, personally I had problems with it trying to outsmart me when I was doing some manual changes). I like to keep it around 30-40% indoors during the day and 0-10% at night.
6. Switch WiFi off when you don't need it, unless you need it on constantly.
For me, it sometimes also helps organise my work too, when I don't get constant notifications or when I'm not eager to browse the web all the time, when just reading something and taking notes.
7a) (if rooted) Make your device fall into really deep sleep...
Add these to your build.prop file (see the thread on tweaking):
ro.ril.disable.power.collapse=0
pm.sleep_mode=1
7b) ...and make it scan for available WiFi networks less often, for example every 180 seconds (same as above):
wifi.supplicant_scan_interval=180
8. (if rooted) Switch off all the apps you don't need that auto-start on boot with a program like System Tuner.
(f not rooted) Use auto-killer for the apps you don't need (if rooted you can do the above two together as well).
You can also deactivate unused apps (settings -> apps -> [select app] -> deactivate). Remove bloatware, too (see the first few posts).
9. Adjust your minfree values, so the low level system task killer will take care of the apps running in the background for you (see the thread on tweaking). You can try with different settings and see what's better for you. Some apps drain your battery life even when you don't use them, while others don't and it's better to leave them in the memory than run them all over again every time. Do some tests and see what's best for you, if you have time for it.
10. Switch auto-syncing apps to lower values when possible (sometimes PUSH is better, sometimes worse for your battery life).
11. Keep it simple. Too many funky animations, floating wallpapers, lots of nice widgets will make your battery drain really fast.
12. Try different custom launchers, you can set more UI behaviour rules in these (see this apps thread).
13. Use a dark wallpaper and dark themes / night reading modes (see why).
PS JuiceDefender reported to having disabled deep sleep, so stay away if possible.
Hotmail app has been said to trigger wakelocks, while overriding system wifi sleep when screen is off, so keep that in mind if you want better battery life over constant e-mail syncing.
Hit [THANKS] if it helps.
First of all, thanks to d14b0ll0s for yet another great write up. I am one of those concerned with the battery life of the Infinity. Though some review says it got up to 9-9.5 hours with BALANCED mode I believe is the mistake. By using Power save mode, I think we can potentially get to that level but still hard.
My system is NOT rooted, but I have noticed significant change in my battery life so far with following:
1. Balanced Mode to Power Save mode.
This gets me like extra 2 hours or so. WIthout this change, 5-6 hours for my usage and with this it goes up to 7-8 hours screen time.
2. Under Wi-Fi Setting change Use wifi during sleep mode (mine is in Japanese so exact wording may be different) to never. Default setting was always. Prior to this change, I lost quite bit overnight unplugged; however, after the change it loses negligible amount.
Now rather than these, I am trying to play around with Juice Defender, which was recommended by d14b0ll0s in best application list he created. I have initially downloaded Juice Defender Free edition, and noticed may be minimal gain over #1 already instituted. But concept was great. So I ended up purchasing Ultimate edition, which allows us to control when to turn of WIFI per individual application based without Root i.e. while reading PDF I don't think I need WIFI connection.
https://play.google.com/store/search?q=juice+defender&c=apps.
I am still tweaking and playing with Juice Defender, but I am certain without change in #1,#2 (which are actually taken care by Juice Defender in its own way), I can gain same battery life and my hope/guess is I can get even more battery life.
So in conclusion, for those not rooted try Juice Defender (at least free version). I will let you all know how the ultimate version does in next couple days.
Thanks for this! ^^ Post 1 updated.
Have you noticed what power-saving mode changes apart from CPU (& GPU?) clock speed? Does it change auto-sync settings or unload some modules? I'm not using it, as it is too slow for me to render big pdfs consisting of scanned jpgs. But when I'm reading them with WiFi off on balanced, I normally get 9.9% drain per hour according to Battery Monitor Widget, which even with some other things that I do from time to time and some additional rendering when opening new files should give me about 9 hours on a single charge. Browsing over WiFi gives me about 7.
The Wi-Fi settings you mentioned are the same as WiFi power-saving settings on the bottom of ASUS setting list, but I've clarified that in post 1 now.
I'm happy JuiceDefender helped you, it's good to advertise it here. I'm adding the info about your post apart from the link to the list of apps.
Thanks
I would also add that it's good the deactivate unused apps/widgets (settings -> apps -> "select app" -> deactivate)
it's only possible for apps which cannot be uninstalled
Good point! ^ Added (-> p. 8).
Mine will be here this weekend.
Thanks d14b0ll0s
Look very useful! I'm about to try.
I think the standby time is awesome. Wifi off, power save mode enabled and left the tablet over night right after full charged battery w/o dock. After 10h still 100%.
Ali I Hagen said:
I think the standby time is awesome. Wifi off, power save mode enabled and left the tablet over night right after full charged battery w/o dock. After 10h still 100%.
Click to expand...
Click to collapse
#nice
The system measuring system isn't exact, and early on so are all the indicators, so don't rely on it too heavily. There may be a variance of 1-3% and a lot more in the usage indicators. Try different battery / apps widgets and compare the results.
Anyway, deep sleep is nice indeed. It normally drains about 0.2% (-0,5%) per hour, mine is now 98% after the night off the charger and responding to a few e-mails in bed
Thanks for the info, it's appreciated.
Antutu's Battery Saver worked great on my 101, I'm observing how it will regulate the power drain on my 700. Hopefully it will keep the back of the tab cool as well.
i think the problem is when you have wifi on!
Ali I Hagen said:
I think the standby time is awesome. Wifi off, power save mode enabled and left the tablet over night right after full charged battery w/o dock. After 10h still 100%.
Click to expand...
Click to collapse
this is good when you have wifi off. however, when you have the wifi on, it shows 80% wifi and 20% screen consumed by battery. you can stop network access by disabling wifi from Asus customized settings and also in wifi setting, you can keep wifi on during sleep to NEVER. this helps a lot..
Stock battery (usage) stats are not relevant, use other battery apps or widgets for that.
I've heard good things about AnTuTu's bat.sav., but also that it doesn't let you have more insight into what it's actually doing, so JuiceDefender seems a better option in that matter.
d14b0ll0s:
Do you know the specific voltage setting / configurations coming out of the usb line?
Is it 16V and how does it distinguish between 16V and 5V on the single USB cable.
For example does the voltage cable go on different lines for 16V and 5V for the TF700?
Or is it 16/5V dual switchable on the same power cable?
I'm asking this is because there's interest to charge the tablet by using alternative methods such as mobile battery with 16V setting.
If so, then does a DC to USB cable be suffice for the job? Or is the cable wired differently as proprietary ASUS?
Thanks!
Sorry, I wouldn't know that. There some ppl here that are doing some testing with the batteries and hardware, perhaps the_kreature or MartyHulskemper could know something. You should post it as a thread in Q&A too.
Redefined301 said:
d14b0ll0s:
Do you know the specific voltage setting / configurations coming out of the usb line?
Is it 16V and how does it distinguish between 16V and 5V on the single USB cable.
For example does the voltage cable go on different lines for 16V and 5V for the TF700?
Or is it 16/5V dual switchable on the same power cable?
I'm asking this is because there's interest to charge the tablet by using alternative methods such as mobile battery with 16V setting.
If so, then does a DC to USB cable be suffice for the job? Or is the cable wired differently as proprietary ASUS?
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First of all, the charger gives 15V, not 16V. Avoid giving your tablet too much voltage as that can kill it...
Secondly, the included cable is a USB 3.0 cable and therefore has 5 extra pins (you can see them if you look straight into the USB plug). These extra pins are used to get 15V from the charger. I don't know exactly how that works, but I guess the tablet tells the charger it wants 15V over the power lines (same power lines as 5V) rather than the charger giving 15V over these extra pins (because that could be devastating to other USB 3.0 gadgets). This is why the tablet won't charge if you insert an old (USB 1.0 or 2.0) extension cable between the charger and the tablet.
Hey I'm running with wifi on during sleep and I seem to get great battery performance (2% loss over 11 hr standby). No build.pro tweaks so no deep asleep our anything like that. I'm wondering if anyone else has gotten similar performance?
I thought it was interesting because the results were the opposite on my tf300t, and my usage pattern hasn't changed much between the two devices.
Sent from my ASUS Transformer Pad TF700T
watwat1234 said:
Hey I'm running with wifi on during sleep and I seem to get great battery performance (2% loss over 11 hr standby). No build.pro tweaks so no deep asleep our anything like that. I'm wondering if anyone else has gotten similar performance?
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Same here. Battery life on deep sleep with WLAN is great!
But I think the Infinity needs a lot of power while reading news, tapatalk, Reader HD..
Not more than 4 hours Screen On Time!
And that with balanced mode and 50% brightness.
Any problems with the fifth companion core?
PS: Is there an app which shows the activity of the different cores?
FAbi
Gesendet von meinem ASUS Transformer Pad TF700T mit Tapatalk 2
this is crazy, i got my tablet on monday, used it about 3-4 hours restoring all my apps and signing in to everything, and i havent used it much since but today, i'm still at 76%, havent plugged it in it or docked it. I also forgot to mention my dad played with it a bit also...prob about 1 hour
Other than battery life, I believe the ChaCha is one of the best QWERTY candybar Android devices out there (not much else to choose from...). So, I am on a mission to get as much battery life out of it as possible, without sacrificing much functionality. I've been experimenting over the past few months and here is what I've found:
1) SuperOSR ROM gives me the best battery life (compared to CM9, CM7.2, CM7, HTC Stock, ATT Stock and Telus Stock)
2) Backlight drains a lot of energy, so I set my custom Backlight settings as the attached jpg
3) 600Mhz Max CPU speed is a sweet-spot for battery life vs. performance
I tried to see max life I could get with various items enabled/disabled, here is a summary:
1) Airplane Mode @ 26hrs still 100% remaining
2) Voice Network On (Auto GSM/CDMA) @ 25hrs still 68% remaining
3) Voice & Data Network On (Auto GSM/CDMA), Background Data/Auto Sync Disabled @ 23hrs, still 68% remaining
4) Voice & Data Network On (Auto GSM/CDMA), Background Data/Auto Sync Disabled, Roadsync Exchange every 15mins @ 23hrs, still 66% remaining **
** This is a big one for me. I originally was using the built in Exchange/Email sync (15 min sync time), but this required Background Data and Auto Sync to be enabled. I would usually only make it 15 hrs or so with regular usage. Once I disabled Background Data/Auto Sync and switched to Roadsync (which still works with these disabled), I drastically increased battery life. The only drawback for me is needing to enable background data to use the Play Store (which I rarely use).
I searched for a decent explanation of what these two functions do, and here is my best concise summary:
Background Data: when enabled, applications can send/receive data even when you are not actively using them (i.e. play store app updates, etc.)
AutoSync: strictly controls whether the accounts (under accounts & sync) are allowed to sync on their own or not (i.e. built in exchange, facebook, twitter, weather, news, etc.)
Other items I set that may or may not save small amounts of power:
• Sound
o Vibrate – Off
o Haptic Feedback – Off
o Low Battery Sound – Off
o Pulse Notification Light - Off
• Display
o Auto-Rotate – Off
o Screen Timeout – 30s
o Animation – None
o Window Animation – Off
o Transition Animation – Off
• Performance
o Disable Boot Animation - On
o Surface Dithering – Off
• Sound
o Silent State – Enabled
o Vibrate During Calls – Off
o Mute Camera Shutter
• System Preferences
o Scrolling Cache – Disabled
o Wallpaper Hack – Off
Also implemented the Adreno GPU mod to is uses the GPU instead of CPU.
Hope this info might help someone increase their battery life!
CM7.2 works best for me. 5-7 days without charging.
peleeks said:
CM7.2 works best for me. 5-7 days without charging.
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Wow, that's a really long time! What are the details? I'm assuming data is off, looks like voice network is on, but I'll also assume you didn't use it during this time period (no voice calls, etc.)
http://forum.xda-developers.com/showpost.php?p=32368934&postcount=124
My measurements:
- HTC Stock ROM: 3-4 days
- CM9 ROM: 4-5 days
- CM7 ROM: 5-7 days
I use phone mostly for calling and calendar/mail. I have only a few apps/widgets installed.
No GPS, no mobile network data connections, no background data, no automatic sync.
Wifi are only enabled when I need it for sync or internet access.
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Here is my phone setup:
CM7.2 build for HTC ChaCha with librpc.so from SuperOSR (http://forum.xda-developers.com/showthread.php?t=1912771)
ADW Launcher EX version instead of stock launcher.
Governor: Conservative, CPU: 245Mhz - 800Mhz
No animations, no haptic feedback, no live wallpapers.
There are 3 major battery consumers:
CPU: The CPU consumes most of your battery, therefore you should measure your applications/services how much CPU resources they need. There should be no unused services in your running services list and no (unnecesary) widgets which wakes up CPU to update information while the phone is in standby. The Temp+CPU monitor will show how much CPU your system ir using when idle or running some applications. If your device is using more than 4% of CPU when idle, open terminal and type top -m 6 to find which process is waking up CPU.
Display: display should switch off 30 - 60 secs when phone is idle.
Radio: You should enable mobile data connection, bluetooth, GPS, Wifi only when you need it.
Erm, question:
Why 30-60 sec when phone is idle?? Why not 15-30 sec? I mean, if it's in idle, that means that you don't use it. That means that you're not actually looking at the screen for anything. For sure, you might be reading something (like an email, or an SMS) but given the screen size, you won't spend more than 15 seconds reading without scrolling. My two cents. And a penny.
I agree that 15-30 secs would be better. I use 30 secs on my HTC.
Great info peleeks! Thanks! Couple questions:
1) Do you think there is much difference in battery life between CM7.2 (with swapped libprc.so) and SuperOSR? I figure they are both AOSP based.
2) Did you notice a big difference between Ondemand and Conservative CPU governors?
3) You mention about switching off BT, WiFi, GPS, etc. but from what I've read, the GPS is only active when an application (like Maps) requests it, so there is no need to manually turn it on/off. Similarly for BT, it uses very little power in standby mode and only consumes when in an active call.
4) For that screenshot where you get 7 days on battery - how many mins of voice calls are recorded?
Thanks.
1. I think there should be no significant differences between CM7.2 and SuperOSR in terms of battery consumption. SuperOSR by default have some google apps and services installed, however many users reported that SuperOSR has longer battery life.
2. I didn't test ONDEMAND governor.
3. Radio devices still consumes energy even if they are not used. With bluetooth in standby mode my laptop consumes noticeably more power than if I disable device in BIOS. Also for every device there is a service/driver which is running in background, locking system, polling device status, etc. There is a beautiful power widget in CM7.2 and SuperOSR - it is very easy to turn device on or off.
4. About 60 minutes of voice calls.
afeudale said:
3) You mention about switching off BT, WiFi, GPS, etc. but from what I've read, the GPS is only active when an application (like Maps) requests it, so there is no need to manually turn it on/off. Similarly for BT, it uses very little power in standby mode and only consumes when in an active call.
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For this one I can chip in with some info:
Regarding GPS, it might be that the chip stays powered on and acquires your position the moment you turn it on; if you see the GPS icon in the status bar then this is true. It's also related to the Location settings, if you allow your device to use location based info to improve services and whatnot. The effect this has is that every Google product will search for location info, even if that application is not running. Keep this in mind; you might want to disable these options as well.
Bluetooth - It is indeed true that in standby mode it uses less power than active mode (active mode means having a device connected, not necessarily an active call). The problem lies in how the software is implemented by the people who released the drivers for the ROM. Nonetheless, it should be turned off if you're not using it. You can find a thorough analysis of Bluetooth power consumption here: http://nesl.ee.ucla.edu/fw/documents/reports/2007/PowerAnalysis.pdf . At the same time, keep in mind that different Bluetooth versions have different power consumptions. For example a device with BT 2.1 will loose more power when having BT turned on than a device with BT 4.0. Our ChaCha has 3.0 according to gsmarena which has a somewhat improvement in power consumption in different stages.
*background info: I work for a company that develops embedded and off-the-market BT car-kits, therefore I'm sick and tired of BT devices (phones, BT players, tablets, etc.). One quick example that we usually laugh at: iPod Touch 3rd/4th Gen in idle with BT off lasts about 48 hours, give or take. With BT on, not connected to anything, it lasts about 24 hours.
Well, been trying different methods in the last couple of months... CM9 gives the best life while using it the normal way... I can survive almost 46 hours with using data, calling, checking mail and everything. It's nice if you can run that long, but why bother about extra days when you can make it over 24 hours with normal use...
Sent from my HTC ChaCha with CM9 using XDA app.
Thanks Alex for the info and link! Got me doing some more searching on power consumption and came up with this great article:
http://translate.google.com/transla...kulaufzeit-unter-Android-1145579.html&act=url
Combining this info with the one from the article you linked, it seems that Bluetooth and GPS don't really use much in standby mode - a few mW at most. So we shouldn't concentrate on them much when trying to conserve power, but rather to look at the larger consumers like unnecessary Data and Display usage.
Tried a stock ROM this weekend since the stock ROM has much better GPS fix time and faster Bluetooth connect for me. Unfortunately, it also has the dialer bug. I can't seem to find a version of the ROM that doesn't. Also, turning off the "quiet ring on pickup", etc. options has no effect on preventing the bug.
However, I did find a fix that worked great for me: Setting "gsm.proximity.enable=false" in the build.prop file
This disabled the proximity sensor so you have to manually turn off the screen on a call - no big deal for me as I use a BT headset all the time. I can confirm that this does the trick in terms of preventing the dialer bug/drainage issue for me.
Let's see what sort of battery life I get now from the stock rom...