Database Users

Yet another battery issues thread

Yeah I know there are a lot of other battery threads out there, but just wondering if I can get some help from all you gurus.
Currently running MYN Warm 2.2 RLS3 with HTC kernel 2.6.32.15.
Have read a lot about this and done a lot of the usual optimizations (calibrate battery, turn off auto sync, 4G, etc...last test I did I was able to get about 25 hours on a charge with very little usage, which is pretty decent. So the phone seems to be sleeping the way it's supposed to.
The issue I have is that when I actually start using the phone the battery drains like crazy (about 1% every two minutes). This is with regular usage (i.e. internet browsing). If I use certain battery hog features such as Navigation or Bluetooh then it drains everything in a matter of an hour or so. Have tried playing around with SetCPU and don't really see any improvements (BTW I only get three options on SetCPU).
So the question is whether the battery drainage is a function of the Kernel I'm using? Why would it be good when it's sleeping, but as soon as I use something consumption goes through the roof. Is there anything out there that would allow you to see actual battery usage by app or service? I know Spare Parts gives you SOME info, but it's not granular enough (i.e. It says Android System includes many different pieces).

I doubt there's any magical kernel that can do more than what you are getting now.
Best you can do is to make sure the phone sleeps when the screen is off, which seems like you have already.
Max display on usage I usually get out of a charge is between 2-3 hours at about 30% brightness settings, out of about 12-15 hour per charge.
I sync google, always data on.

yo i have myn's rom as well but different kernel.. try the ones that myn added in the myn update app that came with the rom

Hmmm...so I guess 2-3 hours of actual usage is the best I can hope for then? I hear people saying how they get a lot of hours and that includes having Bluetooth on, browsing the web, Pandora, gaming, etc...If I did that with mine I don't think I would get more than 45 minutes.

suarezn said:
Hmmm...so I guess 2-3 hours of actual usage is the best I can hope for then? I hear people saying how they get a lot of hours and that includes having Bluetooth on, browsing the web, Pandora, gaming, etc...If I did that with mine I don't think I would get more than 45 minutes.
Click to expand...
Click to collapse
You probably can extend it by using wifi but what's the fun in that?

Skeptron said:
yo i have myn's rom as well but different kernel.. try the ones that myn added in the myn update app that came with the rom
Click to expand...
Click to collapse
Hmmm...Where? Are you referring to the Warm Updater app? I don't see anything about other kernels there. I haven't flashed any kernels on my phone. This is the one it came with.
What battery life do you get when you're actually using the phone?
Achllles: I get quite a bit of degradation on WI-FI as well.
I'm just trying to understand if there's a way to see what exactly is eating my battery when I use the phone. I mean I could be just sitting on the screen not doing anything and if it's on it consumes quite a bit, but as soon as I turn off the screen everything goes to sleep and consumption drops to about 1% per hour. just trying to understand this huge disparity.

Not sure. Best you can do at this point is to install current widget and see how much is being consumed, and guess what's killing your battery.
One other thing I've noticed was even at same settings, my phone often consumed around 25-30mA while screen is off, but now it hovers around 50-100mA, and I haven't made any change to the phone.
Not sure if it's effect on real life usage, but it does seem like it does.

Maybe its not software related...maybe your battery is just shot already.

I know exactly what your going through OP. This caused me to leave Myns and Cyanogen and go to Fresh ROM.
This seems to have mainly fixed the problem.

Myn was using the stock kernal, but his new rsl4 is gonna be using ziggys elite kernal.. Now is this kernal gonna be faster than other ones? No but myn told me its not about speed. Its speed that makes your battery life go down. These flashy kernals that have high quadrant speeds, suffer battery draining issues. So wait till friday for the new rom, and see how that goes.

suarezn said:
Hmmm...Where? Are you referring to the Warm Updater app? I don't see anything about other kernels there. I haven't flashed any kernels on my phone. This is the one it came with.
What battery life do you get when you're actually using the phone?
Click to expand...
Click to collapse
there are 2 kernels there.. just try to look harder, i get 12-15hrs heavy use which is more than enough for me

Was never able to find these other Kernels, but I did install Netarchy Toast. Installed versions 4.19 to try Collin's Battery Tweak, but could never get that tweak to work properly (it always has a process that uses a lot of CPU). Uninstalled that and tried version 4.2 ant that seems to be working OK (without the battery tweak).
So after a lot of testing and re-testing I've come to the conclusion that my crazy battery drain only happens whenever there's a "radio" on. CPU usage is not the main culprit in my case as even overclocking it doesn't drain it much if the radios are turned off. It doesn't matter if it's WIFI, 3G or 4G, if the phone is using any of this it drains very quickly. Thus the reason it acts good whenever is sleeping.
A perfect example of this is that I used Power Amp to play music from my music library (from my SD Card). Used it for like 4 hours and it drained the battery at a very reasonable pace, then I stopped that and started playing music using Pandora. Immediately the battery started to drain at about 1% rate every two minutes or so. I've read somewhere that using WIFI instead of 3G would save battery. Didn't seem to make a difference in my case as it drained at about the same rapid pace. Now if I have both on, then it gets even crazier.
So having found the culprits the question is whether there's anything that can be done to improve this. BTW I think I have the latest PRI (1.77_003), PRL (60671) and baseband (2.15.00.09.01) versions

Battery - Android using 50%+

I'm using Mdeejay rEVOlution 2.3 ROM. 'Android System' is using 58% of my battery, Chucky lite ROM with most of the WM settings off, and Hastarin Kernel (can't remember which number). Is this right?

No, usually Display takes most of the battery. Might be a bad build or something, you might want to format your SD card and load a new version of android on it.
Luckych

Cheers for the reply! I guess I'll crack on with it. Good job it's a Sunday, hey?

i have installed android for the first time yesterday. this is all new to me (flashing roms and stuff) but it all went ok. i have though noticed that battery life is poor. Firstly, i have searched the forum and noted that many users are stating what the battery usage is in mA. how exactly is this measured? is there an app? secondly, it appears the battery can be effected by what rom, radio etc is installed. if i was to try a different rom or radio, would i have to install android again along with all my apps?
thanks

i kind of have this problem too but it hink thats just how these early builds are.
Use currentwidget to measure mA.
My mA idle get down t 5mA, but I am still having some issues getting battery life that i think is acceptable

GeoMil said:
i kind of have this problem too but it hink thats just how these early builds are.
Use currentwidget to measure mA.
My mA idle get down t 5mA, but I am still having some issues getting battery life that i think is acceptable
Click to expand...
Click to collapse
thanks for that. just tried the widget. lowest i get is 7mA

5 to 9 mA is great battery consumption at idle, I'm having an issue staying there, I bottom out one day at 3mA but then today my phone doesn't drop below 50mA at idle. Windows Rom and radios are important for it to run smoothly but I don't think a lite rom makes a difference over a full rom, when haret launches , is gonna keep anything from running on windows(so I hear) I've tried many many roms, and the vbn rom, which is a super lite rom, didn't perform better than what I'm using right now which is energy cht. Radio will keep you from having issues with the phone waking up,(bsod) I've tried a bunch of radios and settled with the 2.15, a lot of people swear by it!

Froyo DK17 DRM battery drain

I've been tracking the battery drainage and system usage of the omadrmconfigservice using the system panel app since updating to DK17 and it doesn't seem to kill the battery the way eclair di18 did. Is this just in my head or is anyone else seeing similar results?

I seem to be getting better battery life with Froyo. I also notice that the phone doesn't shutdown as abruptly, when the battery dies. The phone also doesn't take as long to charge before use, when it completely dead. Just flashed two days ago.

jaaka78 said:
I've been tracking the battery drainage and system usage of the omadrmconfigservice using the system panel app since updating to DK17 and it doesn't seem to kill the battery the way eclair di18 did. Is this just in my head or is anyone else seeing similar results?
Click to expand...
Click to collapse
I don't think it is just in your head. After flashing to DK17, I more or less forgot about killing the DRM stuff at boot, and when using the phone only minimally, even with only 3g on (no wifi), I have gotten 54+ hours on a single charge of a stock battery. Keep in mind though, this was with really minimal usage, maybe 3 or 4 calls, same for texts, and about 1 hour with the screen being on. This isn't typical usage for me, more like an extreme case, but I was able to achieve this with nothing additional running or installed like juice defender. I dont have any screenshots to try and prove it, but my point isnt about bragging, just that the power management is fairly decent on the DK17 build (running Quantum 1.5 if interested)

Koadic said:
I don't think it is just in your head. After flashing to DK17, I more or less forgot about killing the DRM stuff at boot, and when using the phone only minimally, even with only 3g on (no wifi), I have gotten 54+ hours on a single charge of a stock battery. Keep in mind though, this was with really minimal usage, maybe 3 or 4 calls, same for texts, and about 1 hour with the screen being on. This isn't typical usage for me, more like an extreme case, but I was able to achieve this with nothing additional running or installed like juice defender. I dont have any screenshots to try and prove it, but my point isnt about bragging, just that the power management is fairly decent on the DK17 build (running Quantum 1.5 if interested)
Click to expand...
Click to collapse
I posted this in another battery question thread. It also helps that there's a native option to disable data. It's a great feature on Froyo

Wholy crap gingerbread has awful battery

I wouldn't even say I use my phone frequently. When I used the miui or however it's spelt rom I would have 60 percent to 30 remaining each day. On gingerbread? I'm down to 15 percent every day and every night my phone has shut off due to lack of battery.
Isn't there any rom with excellent battery life? That's all I want, I use my phone for tethering.

i put CM7-RC2 on my device yesterday and it's the best battery life i've ever gotten.

Gb battery life owns, u got something else going on

No he doesn't, i've measured religiously since the original nexus shipments and this is by far the worst

My battery was really bad but now it seems to last me 10hrs & up which is weird for a phone to last me that long. I really think theirs an app or bug running the battery crazy I don't use any task managers. Their was a thread somewhere saying to run your phone on recovery mode and to press on the reboot/restart and battery get better I did that so maybe it does work but I highly doubt it.

I can vouch for poor battery too. I am on CM7 RC2 and I can't even make it through a day with light use. By light use, I mean practally not using the phone at all.

My battery life seems to be better than ever. Some 10-20 percentage units more left in the evenings all down the line.
Edit: Stock GB, no task managers.

ttnurmi said:
My battery life seems to be better than ever. Some 10-20 percentage units more left in the evenings all down the line.
Click to expand...
Click to collapse
I agree. Gingerbread has been nothing short of AMAZING for my battery life. The battery life is so good now that I stopped using my spare battery altogether!

Macmee said:
I wouldn't even say I use my phone frequently. When I used the miui or however it's spelt rom I would have 60 percent to 30 remaining each day. On gingerbread? I'm down to 15 percent every day and every night my phone has shut off due to lack of battery.
Isn't there any rom with excellent battery life? That's all I want, I use my phone for tethering.
Click to expand...
Click to collapse
Did you happen to do an Update or a full install when you got gingerbread?
Some suggest that it's due to the update process.. so you might want to try a full install:
http://android.clients.google.com/p...b119f8.signed-passion-ota-102588.656099b1.zip
Remember to wipe your cache first..

What i noticed is taht custom roms use more battery than stock rom. this is for me i don't say that it is like this for everyone. But with gigerbread i got the best battery life. i also think using apps from SD uses also a lot of battery life, but again i have no other choice to low on memory.

bug
I had the same problem. I am on stock gb.
Just set wifi sleep policy to never. It will last 2 days after that. It is definetly a bug.

Seems to be a real mixed bag with GB on N1's. Lots of people saying "better battery" many others, myself included, reporting much worse. For me, I experienced very poor battery life right from updating to the stock GB using the singned passion .zip file. Even did a factory reset, and only reinstalled my daily used apps and it made little difference, then I went back onto a MIUI rom for a few days and battery life was wonderful again.
Then early this week I flashed to CM7 RC2, and for two days battery life was the worst I've ever had.
Had been seeing a few comments on different forums of people who had the same problem swearing black and blue that after they changed the wifi sleep policy to "always on" their battery life improved dramatically on Gingerbread.
I know if sounds backwards, and that is why I was sceptical for ages, but last night I made the change to see if it would make a difference for me today and all I can say is WOW!!! Phone had a real test today as I started work really early. As of right now the phone has been off charge for 16 hours.
Half a dozen or more voice calls, minimal text, my usual wifi and 3g data, about 10 min of streaming video over wifi and about 1/2 hour in total running Navigation.
There is no way in hell my phone would have done all that and even lasted me 8 hours prior to changing the wifi sleep policy - so I think there is definitely something in it.
As for the ppl who aren't noticing bad battery, maybe they already had theirs set this way - or maybe it's an issue only effecting certain batches of devices (like the wifi reconnect issue which seemed to be pretty common pre froyo)

it /WAS/ terrible at first. Really, really dire, but it's back to what it used to be, even better now perhaps.
To the OP, do you have WIFI turned on still? I used to leave it turned on and it didn't ever knock down battery as it was going to sleep and not coming back, so wasn't a drain. GB appears to have fixed this, and it was staying on, thrashing the battery.
Turning it off and turning it on as needed only, battery life is now fine.
Do you have WIFI Turned on? Bluetooth? For now, to try and test what's happening, turn off 3g, wifi, bluetooth, automatic date/time sync, and JUST use it as a phone for a day. See what % you're at at the end of the day.
Then we can take it from there.
But I'd be pretty certain that it's wifi related, in that it's now working as it should be, we just got used to it being broken before.

My phone on cm7 rc2 has worse battery than I used to have with wildmonks kernel and cm6.1. Yesterday, the phone was barely used until 8 o'clock at night. It was at 45 percent. After an hour medium use, its gotten down to 23 so I had to plug in the phone....the easiest fix? Keep a charger In the car!
Sent from my Xoom using XDA App

Using stock Gingerbread and I can say that my battery life is decent, better than Froyo for sure. The phone lasts longer than 16 hours and I use bluetooth to listen to music for 1.5 hrs on my commute home. By the time I get home after a long day (8pm'ish), I still have about 20 to 30% left.

I have no wifi no bluetooth no gps and a dim screen.
Tis is seriously crappy battery life.
Does anyone think they can link me to a good miui rom. For me, it seems that gb just wont work.
I am running stock gb then i flashed the root and my boot loader is unlocked.

bohlool said:
I had the same problem. I am on stock gb.
Just set wifi sleep policy to never. It will last 2 days after that. It is definetly a bug.
Click to expand...
Click to collapse
Listen to this person!
For some reason, since 2.3.3, if you have your Wifi policy to sleep when the screen is off, Android will rip through your battery. You'll notice Android OS taking all the battery on the status page.
Set the sleep policy to never and you get better battery life again. Turn off Wifi manually when you're not using it, even better. Until somebody fixes this bug, I guess it's the only workaround we've got.
More info: check issue 15057 on code.google.com - cant post link due to the newness of this account.

Same here on shorter battery life my nexus one as well post gingerbread ota... I will look into detailed system processes and try to find out why...
Sent from my Dell Streak using Tapatalk

bohlool said:
I had the same problem. I am on stock gb.
Just set wifi sleep policy to never. It will last 2 days after that. It is definetly a bug.
Click to expand...
Click to collapse
Will give it a try on this, mine is set to turn off when screen is off.
Sent from my Dell Streak using Tapatalk

Log into latitude and log out. Every time there is a map update it defaults to being a battery draining monster. But in essence. Something to do with maps link to latitude (which i don't even use) breaks my phones battery life.

[Q] Battery life very bad on CM7

Hi everyone,
I have a big problem of battey usage on Android...
I flashed the NexusHD2 rom in a first time and i realised the battery life was very bad ! (I lost 3% for 5 minute of use !)
I flashed the famous Typhoon CM7 rom and it's the same...
My Radio is 2.15.50.14 and i use CLK.
Thanks for your help

Try a different kernel. That helped in ICS, so after some trial-error you should find a good one.
Sent from my HTC HD2 using XDA

What kernel is the best for it ?

I use Hyperdroid w/ seader r9 kernel. I get pretty decent battery life with it. But you also have to remember that the HD2 is a bit older so it has a smaller battery and less power-efficient parts.

Xeroday said:
I use Hyperdroid w/ seader r9 kernel. I get pretty decent battery life with it. But you also have to remember that the HD2 is a bit older so it has a smaller battery and less power-efficient parts.
Click to expand...
Click to collapse
Agreed, i flashed STOCK Windows Mobile 6.5 from T-Mobile and the battery lasted exactly the same time as with Android on it. I found that the ROM/Kernel combinations only matter a little. The phone alone has horrible battery capacity.

elesbb said:
Agreed, i flashed STOCK Windows Mobile 6.5 from T-Mobile and the battery lasted exactly the same time as with Android on it. I found that the ROM/Kernel combinations only matter a little. The phone alone has horrible battery capacity.
Click to expand...
Click to collapse
Buy a high capacity battery could help a bit ?

zabu64 said:
Buy a high capacity battery could help a bit ?
Click to expand...
Click to collapse
A bit?! Lol that would obviously help a lot. I'm not quite sure how accurate CurrentWidget is, but in terms of standby battery drain I get 5ma drain with wifi on on my phone. On the same settings on my Mum's Desire S she gets 26ma. However she gets great battery life, which I would only guess is due to the larger battery (and the fact that she barely knows how to use the phone, so the screen isn't on very much at all).

Nigeldg said:
A bit?! Lol that would obviously help a lot. I'm not quite sure how accurate CurrentWidget is, but in terms of standby battery drain I get 5ma drain with wifi on on my phone. On the same settings on my Mum's Desire S she gets 26ma. However she gets great battery life, which I would only guess is due to the larger battery (and the fact that she barely knows how to use the phone, so the screen isn't on very much at all).
Click to expand...
Click to collapse
I use batterymonitorwidget pro. And i get around 5ma with wifi and cellular on.

Try using an app called JuiceDefender - it works really well at extending battery life. It basically lets you tweak loads of options to do with data and syncing, so you can have it set that data doesnt run when certain apps are open, or data is off when the screen is off, etc.
There's an ultimate version available, but it is £4.99 from the play store. But I guess that'd be cheaper than a new battery?

The same problem occured to me a few weeks ago. I have been using HyperDroid-CM7 which worked quite decent for 5 or 6 months and had very good battery life. ABut a few weeks ago suddenly the battery life became to awfuly decay, wasting 20% of the energy for idle hour instead of the normal 1-2. I changed the rom to the NexusHD2 ICS port and the battery life slightly improved but rhe problem stays the same. Could it be because the battery itself is broken or some software calibrations are needed (I haben't done any for an year since I bought the device)