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hello
i just got a mytouch 4g yesterday(traded my vibrant for it)
anyway i read on android central a good way to improve battery life is to,
flash ice glacier and a custom kernel,idk if this is a rumor or what but if not i already have ice glacier un themed 1.1.2
but im having trouble finding a kernel post
Kernels are posted in development section, currently there's only one.
You need to get SetCPU from the market to take advantage of over/underclocking to see any difference as, by default, kernels is acting just like stock.
What's best for the battery? Turn off your phone completely, you can go for couple of years on a single charge
But really, it all depends how hard you push your system. Start out with 245/368 powersave with screen off, 345/768 on demand with screen on and see if you can live with it (i.e. no lag). If that doesn't work - up it by a little bit and see the difference. It's a trial and error game as everybody's chips are different in how they can handle overclocking. My set-up is 245/368 on demand with screen off, 768/1607 on demand with screen on, 368/768 if battery is under 20%. Works for me, I can make my battery last at least 14-16 hours with this set-up, YMMV depending on how you use your system.
Kernel thread.
Best battery? Battery life is all relative. Every single person will experience different battery life. The apps you have installed, the amount of time you spend on it and the time you spend on/in each app, distance from cell towers, distance from Wi-Fi sources, settings you have for every app and things like sync and what not.
There is no single variable that will ever help any of us find out what the best battery life is.
All the settings in the world won't help you achieve the 2 days I'm getting because I use mine differently that you, I have different apps on mine that you, I am at different distances from cell and Wi-Fi towers/antennas than you.
The best battery life is what you get out of yours.
I updated to the current build, using the samsung tool to update when it came out. I've never rooted, so I have always been stock.
Wiped it, and then went through their whole process to install.
My system shows im running 2.2.1, so I know I did it right.
My question is, Froyo is supposed to have improved linpack scores by up to 5x. I used to get like 8 mflops, and now I get around 13. That is by no means 5x more. Is something not working right? Are other people getting this result?
Next, my battery life is horrible, well much worse then before. While running 2.1, I used Zeam launcher, and had Advanced Task killer set to auto kill everytime I turned my screen off (with the exception of a few apps I used). I would traditionally be able to get like 16 hours of battery life, and still have like 30% battery. This is with texting and web browsing during the day. Now, with minimal texting and less use, ive been getting like 12 hours, and im at like 5% battery life. As far as I know, I have it set up just like I did before. Anyone else running into this at all?
(most of my battery is being used by my Display 89% right now, or so my phone says...)
Maybe I am completely offbase on these, but I want to know if anyone else is running into these questions. Any suggestions would be appreciated.
I am fairly new to Andoroid so take it for what it is worth. I am also experiencing a drop off in battery life since Eclair (which was also no great shakes re. battery life, lasted about a day), and did the requisite things necessary to to extend battery life - screen at lowest setting, no automatic sync, wifi/BT/gps off when not in use. In my case, the hog is display (98% ) which I attribute to spending more time with the phone since Froyo update. In my previous phone, a blackberry, it took several days and a few battery pulls for the OS to completely "settle in" - I don't know if that's the case with Android OS.
Five times!
Where did you hear that? People with certain phones saw close to a 2x improvement because of JIT, but JIT isn't optimized for our phones so it doesn't do as much for us. Personally, I think a 50% improvement with only software changes is pretty impressive.
Also, don't use task killers with 2.2. FroYo has better task management than eclair did. And people who have tried using task killers to improve battery life have reported worse battery life than just sticking with the stock memory management.
And you know that since your display is using almost 90% of your battery, the problem isn't a runaway process. It is more likely that the problem is how much time the screen is on. Get spare parts and tell us what percentage of the time since last charge/boot the screen has actually been on to use so much juice.
Battery could be the TWS (time without signal) bug. Go to Settings > About phone > Battery use > Cell standby. See what your time without signal is at. If more than a couple percent then toggle Airplane mode on and off. Also make sure you update your PRL. You may have to do this every time you reboot. My understanding is that it's a common problem with 2.2 and CDMA devices (not just the Epic).
DiGi760 said:
Five times!
Where did you hear that? People with certain phones saw close to a 2x improvement because of JIT, but JIT isn't optimized for our phones so it doesn't do as much for us. Personally, I think a 50% improvement with only software changes is pretty impressive.
Also, don't use task killers with 2.2. FroYo has better task management than eclair did. And people who have tried using task killers to improve battery life have reported worse battery life than just sticking with the stock memory management.
And you know that since your display is using almost 90% of your battery, the problem isn't a runaway process. It is more likely that the problem is how much time the screen is on. Get spare parts and tell us what percentage of the time since last charge/boot the screen has actually been on to use so much juice.
Click to expand...
Click to collapse
Yeah,
<http: //developer.android.com/sdk/android-2.2-highlights. html>
Says 2x-5x. I seeing as i'm not even getting 2x, thats kinda a joke.
But something within the update had to have affected the screens battery use. Like I said before, I had fine battery life not 3 days ago, and now it all of a sudden drops. I HIGHLY doubt that that is a hardware issue. I can test, but I have worked with computer hardware for years, so that just doesn't make any sense to me.
Linpack does not execute any code..it does a floating point calculation..wit JIT you get up to 5x efficiency in code execution..does not mean it crunches numbers faster 5x faster..
The phones that are achieving 5x or more speed are doing so through a flaw in linpack...
So my wife hates the battery life of her Inc. I even got her a bigger battery (the one that is bigger but still fits with the stock back) and its really gotten bad. She gets maybe a days use. And use for her is hardly any data mostly talking on the phone. Its maybe 30mins to an hour on average of talking, some texting, and that its about it. I would think the battery would last longer.
I am no stranger to rooting and loading Roms, did it on my Droid 1 and now on my Thunderbolt, but the wife's phone has been off limits. But now its getting to the point where I want to step in and improve it. So I don't want to be flashing roms all the time, just need a stable rom with some nice bells and whistles, a good kernel for battery life, and I can load it and not have to worry about it.
ruby rom 2.0.2 and incredikernel 4/19 and then underclock it in gem settings. the best battery life ive seen ever across any android device ive had. its an aosp rom meaning no sense widgets, but that can be fixed with a third party launcher like Launcher pro plus. Not even sure if thats a factor. You could also try the xda superpower app wgich gives you automation with certain battery drainers, ie. 3g. let me know if you need help, because I have been on the quest for long battery life for a while and this is it.
I think she likes the Sense stuff, don't want to make it look too different than what she has now.
skyraider 4.1 with stock kernel then.
When you say "stock kernel" do you mean the kernel that comes with skyraider or the actual stock kernel (or does skyraider come with the stock kernel?).
it comes with the stock kernel. also check what is syncing and how often in system settings.
yeah I have clean out her syncing stuff, Cell Standby is using the most power, so I am not sure what is going on.
something is syncing definitely too much. my standby time is around 3% all the time and I manually sync.
I'm running SR4.1 with chad's 12/23; I unplug at around 7:30, and by the end of the day (around 10pm or so) I'm usually sitting at around 50-75% battery; that's with wifi/data off (turned on when I need them) and moderate texting (phone on vibrate) all day.
If you're getting Cell Standby as the biggest battery drain, that means she's in areas with low signal and its trying to find a stronger signal.
^^^^ That too. Forgot that part, but for whatever reason ive noticed sense roms have higher usage. Coincidense, maybe.
Do you mean higher usage as in Cell Standby or just in general? Just in general I can see why, because it has to draw more graphics on the screen for the UI.
carngeX said:
Do you mean higher usage as in Cell Standby or just in general? Just in general I can see why, because it has to draw more graphics on the screen for the UI.
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Click to collapse
im talking cell standby. strange, I know.
Hmm, that's weird. Could be because of stuff like HTC Check-in services, since that stuff would be in Sense ROMs...but idk. Guess all I've really used were Sense ROMs, so I don't have much of a basis to judge from.
Cell Standby is when you have no service. That is when it's constantly looking for a signal and can't find it. That's why her battery life sucks. In low service areas, when the service goes out, it starts searching for a signal, which eats battery life. I have the same problem at my job, because there's like no service there. Can try putting it in airplane mode in those areas (which makes it use almost 0 battery), or get JuiceDefender (works great OOTB) and use that to only allow sync's every X minutes......
todd3835 said:
Cell Standby is when you have no service. That is when it's constantly looking for a signal and can't find it. That's why her battery life sucks. In low service areas, when the service goes out, it starts searching for a signal, which eats battery life. I have the same problem at my job, because there's like no service there. Can try putting it in airplane mode in those areas (which makes it use almost 0 battery), or get JuiceDefender (works great OOTB) and use that to only allow sync's every X minutes......
Click to expand...
Click to collapse
Not necessarily no service, but low service as well. I live in an area with low signal in places, and work in metal buildings that really cut my signal down as well.
Well we work is roughly the same area (maybe half a mile apart) and I never have that much usage on Cell Standby. Something is screwy and I am hoping a new Rom and kernel that does some unclocking might help. Maybe starting fresh I can configure it better.
She took it off the charger this morning at 100%. When she gets home I will post her battery level and usage info.
1/2 a mile can be a big deal. I don't know the kind of environment / area you're in, so I can only guess.
You could also try flashing a different radio if you want, too. Heard good luck about that sometimes.
Magnolia ROM. Rock steady; NO issues at all.
Tried and true
It doesn't seem to be getting any more updates but Incredibly Re-Engineered was my go to for speed, stability, and battery life.
re-engineered is a good choice as well.
Hi all,
Just wondering if your all seeing reduced battery life with the ICS builds for the DesireZ?
I was using Miui (2.x) and now trying out Ice Cream JIBWich,and Im discovering the battery life is most certainly less. I've also tried CM9 Alpha and Andromedus r13, all roughly the same.
Battery Widget reports on average 40(ish)mA in sleep, I havent compared it to Miui but just wondering I've done something wrong here..
Install procedure this time was a factory wipe.
Comments?
Angelo
I don't know if my battery life is worse on ICS than on CM or stock 2.3. Because I don't have any logs of battery life. Maybe I will do some tests in next week, just for curious.
So... I'm getting 30mA - 34mA drain on idle on Andromadus v13 with default kernel. It is lower than yours. I'm using latest radio now (.19).
After implementing new features and fixing bugs, there is a stage of development called optimization. That is when you will see all the battery life milked out of a rom.
And none of the ICS roms are even close to that stage, so battery will probably not be indicative of the final product.
I don't have any hard numbers, but based on my moderate usage, (8am to 11pm) I go from 100% to about 40%. Fairly good IMO when compared to sense roms (that i'm used to) but not as good when compared to AOSP GB or MIUI roms..
Hmm I found my battery doing suprisingly well compared to aosp gb, now that I'm using ics its lasting longer than ever.
It probably has to do with better app/process management.
That's my experience..
Sent from my HTC Vision using XDA
Well, this might sound strange to say but i'm actually getting the best battery life i've ever had out of ICS so far with Andromadus v13/Jibwich 1.3 on my phone. I seem to manage to get really long charges of at least 48 hours. Maybe i'm not using my phone as much as i was with GB? I'm not quite sure if that's the case or not, but i'm consistently getting longer lasting charges than ever before with GB.
Thing is though that ICS ROMs DO seem to drain the battery more while the phone is actively being used (in comparison to AOSP GB ROMs), this seems to be the case for me, as well as some other people that i've seen.
There were a few strange versions of Andromadus and Jibwich though which seemed to cause severe battery drain for me. Fortunately, that hasn't been the case with any of the latest versions.
All of that said, i still don't think anything compares to the battery life on G2 Slim (Gingerbread AOSP ROM), that ROM has ridiculously good battery life. With that one, i'd use my phone a fair bit (couple hours of tethering, gaming, lots of texting and calls) and it would still last for at least 44 hours or so.
In the end though, there are still some GB ROMs that have much worse battery life than ICS for me. For example, all CM7 variants that i've tried has always had this frustrating radio related battery drain, then some Sense ROMs seem to drain the battery a bit more than AOSP ROMs too. In response to the OP, i never really got amazing battery life with MIUI, so ICS has been a much better experience so far in that regard.
What i do know for sure though is that battery life with ICS is MUCH better than the stock gingerbread OTA update that our phones got.
thanks all,
I've done some checking and according to battery monitor, my JIBWIch rom seams to be fluctuating .. from 36mA to 97mA in standby which to be indicates something's running.. not sure what... Anyone recommend a decent process monitor, there's soo many of them
>After implementing new features and fixing bugs, there is a stage of development called >optimization. That is when you will see all the battery life milked out of a rom.
>And none of the ICS roms are even close to that stage, so battery will probably not be >indicative of the final product.
Agreed..
I'll see how it goes but I might have to go back to Miui (GB) as I use the phone for work..
asantaga said:
thanks all,
I've done some checking and according to battery monitor, my JIBWIch rom seams to be fluctuating .. from 36mA to 97mA in standby which to be indicates something's running.. not sure what... Anyone recommend a decent process monitor, there's soo many of them
>After implementing new features and fixing bugs, there is a stage of development called >optimization. That is when you will see all the battery life milked out of a rom.
>And none of the ICS roms are even close to that stage, so battery will probably not be >indicative of the final product.
Agreed..
I'll see how it goes but I might have to go back to Miui (GB) as I use the phone for work..
Click to expand...
Click to collapse
Here was my (personal) record breaking charge on Andromadus v13 https://www.dropbox.com/gallery/12263406/1/screenies?h=c9ef42
You can see part of my configuration there (radio and CPU speeds).
On top of what's already there, i use supercharger RC6.9 with option 6 and nitro-lag-nullifier.
here are my usage patterns for good battery life:
-I generally stick to 2g networks as i don't do much web browsing while i'm out but when i do, i just switch to 3g.
-I also don't regularly use any task killers but if i detect any choppyness i kill app using Advanced Task Killer.
-I don't use auto-brightness and instead i just use the notification power widget.
-I do lots and lots of texting, some calls here and there, i often use wifi hotspot and i play 2d games a little bit at times, so i'm generally a light-moderate user.
-I also "debloat" as much as possible by getting rid of any system apps that i don't use.
On a random note, right now, i'm using Jibwich 1.3 and it is so great, battery life seems the same as andromadus v13 but this ROM is actually much more smooth and fluid on the home screen.
I hope this helps a bit, give me a thanks if you found this useful ;D
hey thanks for this, yeah very nice!
Just occured to me, im currently in Madrid (Roaming), and the phone's on 2g at the moment, I WONDER.. just wonder, if its constantly hunting for 3G signal.. now that would account for the random power demands...
Meanwhilst I found this app http://androidadvices.com/save-battery-android-phone-enabling-2g-network/
Apart from adding a 2g/3g toggle it also makes the phone go to 2g when sleeping.. I mean when its sleeping we dont need 3g access....
Anyone else tried it? or can recommend a different better/app?
asantaga said:
hey thanks for this, yeah very nice!
Just occured to me, im currently in Madrid (Roaming), and the phone's on 2g at the moment, I WONDER.. just wonder, if its constantly hunting for 3G signal.. now that would account for the random power demands...
Meanwhilst I found this app http://androidadvices.com/save-battery-android-phone-enabling-2g-network/
Apart from adding a 2g/3g toggle it also makes the phone go to 2g when sleeping.. I mean when its sleeping we dont need 3g access....
Anyone else tried it? or can recommend a different better/app?
Click to expand...
Click to collapse
Go to settings --> wireless and networks --> mobile networks
Now see if you have "use only 2g networks" checked. If you do, that'd be why you're always connecting to 2g networks.
As a battery saving tip, it's best to always check that option when you don't need mobile data (like when you're at home and wifi is available).
In addition to that, if that option is NOT checked, then your phone will connect to 3g networks where applicable, you have to check if your carrier actually uses 3g networks on your plan.
Also that app seems fine, but i wouldn't use the "use 2g when sleep" option because that could cause problems with reception between waking and sleeping because it'll be erratically switching between basebands all the time.
asantaga said:
Hi all,
Just wondering if your all seeing reduced battery life with the ICS builds for the DesireZ?
I was using Miui (2.x) and now trying out Ice Cream JIBWich,and Im discovering the battery life is most certainly less. I've also tried CM9 Alpha and Andromedus r13, all roughly the same.
Battery Widget reports on average 40(ish)mA in sleep, I havent compared it to Miui but just wondering I've done something wrong here..
Install procedure this time was a factory wipe.
Comments?
Angelo
Click to expand...
Click to collapse
It looks to me that yes. Tried 3 ICS inluding JIBWich and CM9 based and battery life was reduced to me about 1/3 maybe 1/4. looks like that. Hope some improovment will come in near future.
I'm running Andromadus v13 and it seems to be only a bit worse than the latest CM7 nightly. However, this is only my subjective opinion, it could be that I'm using my phone more with ICS
I also have the .19 radio and the tweaks associated with v13.
Well from what i've seen, ICS has very steep and sudden drops in the battery stats graph when the phone is being used. This is in contrast to many gingberbread ROMs which just have a sloping negative curve on the battery stats graph. This seems to indicate that ICS uses more battery when the phone is being actively used.
I'll post pics after this current charge is over to show a comparison of ICS battery life with Andro v13 and GB battery with Virtuous G-lite 2.0.1.
I don't see any difference between GB and the ICS battery usage, maybe because i allways configure it from begining and don't restore apps via titanium backup or any other app...
Also battery needs to calibrate under new ROM and after few charges you will see it working little bit longer and longer...
ps. Do you have disabled Google Talk on ICS fresh install? He is always on after installing and eats a lot of battery.
louloudi said:
I don't see any difference between GB and the ICS battery usage, maybe because i allways configure it from begining and don't restore apps via titanium backup or any other app...
Also battery needs to calibrate under new ROM and after few charges you will see it working little bit longer and longer...
ps. Do you have disabled Google Talk on ICS fresh install? He is always on after installing and eats a lot of battery.
Click to expand...
Click to collapse
I also configure all new rom's from begining and on Affinity 2 - my battery in averange usage die after ~16h but on ISC os about ~13h, I don't know why.
My battery after full charge get 4.212 V , tried clear battery stats bin no effect
My avg runtime on one charge on CM7 w/o oc, with ilwt or pershoot kernel is 60hours (yes! 3 "work days") or atleast 2 days with 50-70 min calls and 25-35 SMS
Turning data and/or wifi when needed makes phone battery least looooonger...
Now testing Andromadus Audacity b1, charged 7.5h ago (4207mV), i will post when empty (or near ~3600-3650)
Also remember that we don't have the proper kernel source for our phone. There are some tweaks that can't really be made yet, and probably a bunch of wasted cpu time where errors and stuff get worked through.
GB battery life was worse than Froyo at the same stage of development. It'll even out better when we have the official kernel source for the DHD, I think.
Sent from my HTC Desire Z using XDA
So most ICS based roms have roughly the same battery life?
I'm current on the audacity beta, getting about 20 hours with no charge with moderate use. Gingerbread i could go about a day and acouple more hours.
I'm a bit bitter that I can only use 3G or higher on Bell with my DZ...that means if I want better battery life I need to ditch mobile data altogether. Boo.
Sent from my HTC Desire Z using XDA
Better battery life
All,
I was just about to install "Elitemod", which claims to be tuned to bits wrt battery life, and I noticed AudicityBeta1 was released.. so i thought Id try it out.. and
And yes I think its much better!.. this morning I used it a bit, made a dozen phonecalls, sync'd email and for the first time the "voicecalls" are less than the screen.
(see attachment)
Im wondering if the recently released qualcomm drivers made a difference..
At this rate it will last ~40hrs... probably less but as long as it lasts the day Im happy
Anyone else want to confirm my findings?
So now that our JB roms are stable enough for daily useage, let's talk seriously about battery life. It's something it seems like no one wants to talk about, yet it's probably THE most important factor in deciding what your daily driver is going to be.
I don't want this to be another "what's the best battery life" thread, but rather a systematic collection of battery data from a variety of users on a variety of roms/kernels.
Now, as far as I understand, kernels make the biggest difference when it comes to battery life. Also, we know that not all phones are created equal (voltage groups a, b, and c). What I'd like to do is make a spreadsheet detailing which rom/kernel combos get the best battery life. I think the best way to do that would be to determine screen on time with airplane mode on. Would anyone be willing to help with this?
The Galaxy Note is the best phone ever.
My experience with JB is horrible battery life. I ended going back to Paranoid .4 (CM9) for the battery life. JB's new features weren't worth it to me. I'm currently trying out the latest German 4.04 release and even it does much better on battery life compared to JB. JB is still a work in progress and I'll wait for better incarnations.
gedster314 said:
My experience with JB is horrible battery life. I ended going back to Paranoid .4 (CM9) for the battery life. JB's new features weren't worth it to me. I'm currently trying out the latest German 4.04 release and even it does much better on battery life compared to JB. JB is still a work in progress and I'll wait for better incarnations.
Click to expand...
Click to collapse
Mine is actually doing good..
I'm on the original rom (latest version) , 9h 15min on battery, and still 43% left..
HSPA is always on, surfed the internet for hour of 2 today, played some games, text,...
Doing pretty well!
Never tested JB on it though.
If you want good battery life ....
1. In Google maps app go into settings and untick all the background data connection settings.
2. In Rom settings turn off....
Google Back up and restore
All location settings turn them off
GPS settings off
In accounts and sync turn off all Google and Facebook auto account sync settings and sync manually.
Finally don't turn on Google now in jb ROMs it eats battery.
The above steps will see you battery life improve lots!
Press thanks
Flashed Jellycore v1 build 3 this morning, been mainly browsing the internet, Facebook and xda all day. These are my battery stats:
Sent from my GT-N7000 using xda premium