Develop Bugs

Battery life

Is it normal to have 39% battery left with normal use after 8 hours 30 mins?
Running Opendesire 4.0 and newest radio
Just asking becasue i think it's running low fast..
OJ haven't died...

your lucky,
my battery is empty after 7 hours.

desire's battery is terrible. I couldn't manage to get 5h of using on it.

I am running the stock htc sense 2.2 rom, and my battery with moderate to heavy use would hold out for 24 hours. Something is badly wrong if you are getting less than 12. It was pretty much the same for me on 2.1 too. Getting 38+ hours now I'm using tasker.
Custom roms are supposed to be more efficient too. Have you looked to see what is using the power? A rouge app perhaps?
Sent from my HTC Desire using XDA App

I wrote this post the other day and just to update it i ended up getting 60 hours on one full charge which is pretty amazing. Some of the other posters had a go at me about turning mobile internet off and wifi off but who cares i got 60 HOURS!!!!
Hi Everyone,
I thought id share the amazing battery life im having, ive had it going for 48 hours so far and still got 45% of my battery still left, ill tell you all my set up and i wish you can get the same.
Installed LeeDroids rom (1.9a) which is absolutely amazing i must say, i love it.
Got the new radio 32.44.00.32u_5.09.05.30_2.
SetCPU running and have the normal standby on the phone at 642mhz and 245mhz when the screen is off.
I also have a task killer on set to kill most apps when the screen turns off and i have read about androids memory management but it makes me feel better when i run it and i personally think it helps.
Finally, and possibly the most important is an app called AutoKiller that interacts with androids internal memory management system and i have that set to ultimate.
I think thats it, and i have been using the phone averagely, and have turned off wifi and mobile internet and only use it when i need it.
Good luck everyone, hope this is helpful in someway.

I used to get 6 to 12 hours after I recovered my phone from being usb bricked. I'd missed a vital part of the recovery procedure! Now I get over 24 hours with heavy usage. I'm also using Setcpu.
Sent from my HTC Desire using telekinesis

Sorry bad English. I have rooted Desire + DeFrost and battery life is about 10-12 hour.

Chances are that anyone who is getting really bad battery life has a rogue app installed.
FWIW, I installed the Sky News app yesterday, and found, via Spare Parts, that it was stopping the phone from sleeping and creaming my battery life. I installed it, and things went back to normal.
Regards,
Dave

how to find which software etc is gulping the most battery?

There are two ways of doing this. The quickest is to open your dialer, and dial the following; *#*#4636#*#*
This code will open up a hidden menu. Select 'battery history'.
From here you can see what aspects of your phone are using which resources from selecting from the drop-down menu. Try looking at 'partial wake usage'. This will show up any rogue apps that are doing the phone from going to sleep. In fact, check them all out.
The second way is to download an app called 'spare parts' which gives you access to this hidden menu without using the dialer.
Hope this reveals the culprit!
Sent from my HTC Desire using XDA App

lhoang8500 said:
desire's battery is terrible. I couldn't manage to get 5h of using on it.
Click to expand...
Click to collapse
you are doing something very wrong if that is the case.

15h1m and i'm on 73%.
29 hours. 41%

I'm relatively new to android but my last two windows mobile based devices have had much longer battery life if I set the network mode to GSM only. Would this be the same for the desire or would it be better on WCDMA only?

GSM will only give you 2g bandwidth, but yes the battery will last longer. CDMA will give you 3g and HSDPA. I leave mine on this and get 36 hours typically.
Sent from my HTC Desire using XDA App

ukdj78 said:
I'm relatively new to android but my last two windows mobile based devices have had much longer battery life if I set the network mode to GSM only. Would this be the same for the desire or would it be better on WCDMA only?
Click to expand...
Click to collapse
The biggest issue with doing this is that you won't get simultaneous voice and data over the cellular network. If some tries to call you whilst your phone is syncing (and thus actively using data), the call will go straight to voicemail.
Regards,
Dave

2d 18h and on 16% with mobile internet on, sync on etc. But my usage is fairly low, about 20 mins voice, 10 texts approx, 20 mins 3G web browsing and about 10 mins of gaming.
On heavy use, it will last at least 24hrs - not bad, though I use setcpu to adjust max clock speed to about 700mhz and I have not notice any difference in terms of slow down.
Also I am not using any task killers apps.
EDIT: Forgot to mention that I use Timeriffic to automatically turn on airplane mode at night every night and off in the morning.

foxmeister said:
The biggest issue with doing this is that you won't get simultaneous voice and data over the cellular network. If some tries to call you whilst your phone is syncing (and thus actively using data), the call will go straight to voicemail.
Regards,
Dave
Click to expand...
Click to collapse
That not happen on my phone, FORTUNALLY!!! If my phone is on 2g and have the internet connection active and some tries to call me, the internet connection will stopped and i can get the call..Maybe depends on the operator? (anyway my desire is unbranded with stock froyo 2.2)

andQlimax said:
That not happen on my phone, FORTUNALLY!!! If my phone is on 2g and have the internet connection active and some tries to call me, the internet connection will stopped and i can get the call..Maybe depends on the operator? (anyway my desire is unbranded with stock froyo 2.2)
Click to expand...
Click to collapse
Yes - I probably should've mentioned that this is carrier dependent, but most carriers don't seem to be implement it.
Regards,
Dave

Does wifi kill battery faster?

Does using wifi drain the battery? Is it better than using the actual 3G or 4G?
Sent from my HTC Vision using XDA App

I'm sure someone has a way more technical answer but I would think not. I have no issues with drainage on wifi, as on 2g its on the network constantly and not continually searching for towers.
Sent from my HTC Vision using XDA App

jeremyt727 said:
Does using wifi drain the battery? Is it better than using the actual 3G or 4G?
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
If you are connected to a wifi network, it saved much more battery than using 3 or 4g. However, if you leave wifi on but don't connect to a network, it will drain battery
Sent from a truly Epic phone and a transparent XDA app

ok cool thanks alot man. Idk when I'm home I just like using wifi better, correct me if I'm wrong but it seems faster. Thanks again
Sent from my HTC Vision using XDA App

Turning on anything more than necessary will kill your battery faster. Not always by a lot but everything does and wifi wouldn't always be faster because it depends on the wifi's local area connection. Best way to save battery is to go in settings/applications/manage applications the force close anything you don't need running. Make sure you know what it is you're closing or you could run into some problems. If you end up killing a system app and it won't reopen itself, its nothing a reboot won't fix.

dietotherhythm said:
Turning on anything more than necessary will kill your battery faster. Not always by a lot but everything does and wifi wouldn't always be faster because it depends on the wifi's local area connection. Best way to save battery is to go in settings/applications/manage applications the force close anything you don't need running. Make sure you know what it is you're closing or you could run into some problems. If you end up killing a system app and it won't reopen itself, its nothing a reboot won't fix.
Click to expand...
Click to collapse
DO NOT DO THIS.
Android has its own automatic task management system, and its best if you just let it do what it does best: manage on its own.
Sent from my T-Mobile G2 running Cyanogenmod.

Well gee I do it all the time and it works fine. If it wasn't intended to be used I don't think it would come without root permissions and anyone who isn't an idiot will realize that force closing android system will cause problems. But if you wanna suggest a task manager that doesn't actually kill apps and adds some bloat ware, be my guest.

dietotherhythm said:
Well gee I do it all the time and it works fine. If it wasn't intended to be used I don't think it would come without root permissions and anyone who isn't an idiot will realize that force closing android system will cause problems. But if you wanna suggest a task manager that doesn't actually kill apps and adds some bloat ware, be my guest.
Click to expand...
Click to collapse
He's not going to recommend another task manager/killer, because Android already does it by itself. Plus, killing a task that is not finished just causes it to respawn. Task killers are unnecessary, and may actually hurt performance and battery life.
Its explained here: http://forum.xda-developers.com/showthread.php?t=849974&highlight=task+killer

I agree that it's best to let Android clean it's own house normally, however I'm getting a little bit jarred off with certain apps starting themselves up at boot-time.
Paypal app for some reason has installed a service on my phone, despite the fact I've never even logged into it and I can't see why it would need a service running all the time.
Also since the latest Google Maps upgrade there seems to be something under my running tasks called Rate Places. I've not used the check-in service on GMaps at all, nor will I ever.
As well as this, since I've been running a modded CM ROM (SparksMod Extra Hot Sauce) then I constantly have Wi-Fi Calling running - again this is useless to me cos I'm not on TMob US.
Any suggestions for a decent app which can stop all these things running before they ever start, and keep them stopped?

setspeed said:
I agree that it's best to let Android clean it's own house normally, however I'm getting a little bit jarred off with certain apps starting themselves up at boot-time.
Paypal app for some reason has installed a service on my phone, despite the fact I've never even logged into it and I can't see why it would need a service running all the time.
Also since the latest Google Maps upgrade there seems to be something under my running tasks called Rate Places. I've not used the check-in service on GMaps at all, nor will I ever.
As well as this, since I've been running a modded CM ROM (SparksMod Extra Hot Sauce) then I constantly have Wi-Fi Calling running - again this is useless to me cos I'm not on TMob US.
Any suggestions for a decent app which can stop all these things running before they ever start, and keep them stopped?
Click to expand...
Click to collapse
Try "Autorun Manager"
I use it, but SOME apps will auto-restart. I think you need the Pay version of Autorun Manager to prevent those from re-launching.
I use the free version, and it gets rid of some of the problem.

WiFi is definitely causing massive battery drain on my G2 with CM6.1.1. I leave it on at night, and if I have 50% when I go to sleep, I'm down to 3% in the morning. Without doing anything.
I'm not quite sure why this is happening, but it is, and it sucks. I can't go back on 3G/4G right now because I'm at just about 4.8GB, and I don't want to go over my 5GB soft cap.
I wish I knew why WiFi was causing such battery drain...

Do you have anything updating automatically (Email, facebook, etc)? That would be my best guess. I leave wifi on when I'm at home and it isn't that bad at all. Also, I'm sure theres an app out there to let you see what is using the wifi for updates and such. I just don't know of one off the top of my head. I have an app like that for 3G data but it doesn't do wifi.

I just went through every one of my apps to make sure that nothing is set to sync, except Google Voice and Email. My battery is at 50% right now, so we'll see what it's at tomorrow morning.
As you can see from the screenshot, WiFi is using quite a bit of battery. I'm not sure why, but hopefully soon (after some testing) I'll have my answer.
Sent from my HTC Vision using Tapatalk

Yup, 2 nights in a row, my battery has gone from 40% to dead, simply from sitting on my night stand. I wonder if this is why T-Mobile discontinued the G2... because they knew it would have battery issues, and they didn't want to deal with serving warranties? Hmmm...

Its a bit of a leap of logic to link your personal battery issue with T-Mob discontinuing the phone. T-Mob has a good number of Android phones coming out in the near future, with T-Mob really ramping up their support of Android devices. So its been very reasonably speculated that they are discontinuing the G2 in order to make room in their lineup (and stockrooms, etc.) for the new phones.
I get a full day of moderate usage on my Vision, and can get close to 2 days with low usage. That's very typical for a modern smartphone. I usually get in the range of 2-3% battery drain per hour when the phone is idle. And that's with WiFi always on (even when not connected to a WiFi network) and auto sync of Gmail and HTC stock and weather apps. You haven't mentioned how long "overnight" is exactly, but I'll assume 8 hours or so. So your phone draining from 40% to dead overnight seems unusual. WiFi typically uses less battery then the cell data network, when WiFi is available. I suspect there is something else going on, besides just being on WiFi. If the cell reception is dodgey in your area (or fringe 3G reception), this might run the battery down (even if you are on WiFi) as the phone is constantly searching for signal. Or your radio may be mismatched to your custom ROM. Or you may just have a bad battery. Also, was the battery drain any different when you were on the stock or other custom ROMs? I personally haven't witnessed the battery drain to be significantly different across the ROMs I've tried. But that seems to vary, as there often seem to be people complaining about this or that ROM causing more battery drain.

The reason I thought it might be a hardware defect issue is that my wife and I got G2's at the same time. I rooted mine and have been running CM6.1.1 for a few months now, and my wife has kept hers stock. However, the battery issue hit both our phones at almost the exact same time.
It sounds ridiculous, but conspiracy theories are fun to play with. The fact that I've been rooted so long, and it JUST happened weirds me out. Add my wife's phone to the equation, and it's even weirder. I kept my phone on WiFi and 2G networks only last night (yeah, about 8 hours), and the exact same thing happened.
Maybe I should just get a new battery, I don't know. But I do religiously delete apps I don't use and make sure the ones I do use are syncing as minimally as possible.

Poor battery life

My brother has a desire which is running oxygen Rom but the battery life is terrible. It only lasts about 6 hours with the phone on standby.
I have swapped batteries with my phone but still same problem.
Any ideas?

settings then accounts and sync then untick the background data box, should help a little but generally battery life is quite poor

gavsterchef said:
settings then accounts and sync then untick the background data box, should help a little but generally battery life is quite poor
Click to expand...
Click to collapse
If i untick that, then push alerts on gmail wont work.
I will be doing the battery calibration as mentioned here,
http://forum.oxygen.im/viewtopic.php?id=125

Anybody else with other views?

This is not possible unless you're not turning off screen at all, having auto sync on and using navigation or something...
Sent from my HTC Desire using XDA App

Change the Display settings to 20%. Do you have gsm or gprs? Maybe Your gprs reception itsnt good, try gsm
Sent from my HTC Desire using XDA App

It's on gsm and the reception is very good at all times. I have changed to a newer radio as it was running an old version, ill see how it performs now.

Jellybean Wifi Drain worse than ICS

Ive tried CM10 and AOKP Jellybean based ROMS with kernels like faux's, trips and ncx, but always had the same issue - Wifi kills my battery by evening.
On ICS Roms (ARHD and OrDroid), i was able to keep wifi sleep to "never"and it would use less battery than cellular data networks. While im at work, i need to use wifi since there no data coverage there anyway. With OrDroid on stock kernel, i currently get around 3hrs of screen time, 30 mins of Talk, and wifi is on for around 7-8 hours just for mail and chat.
Has anyone been able to use the wifi on Jellybean ROMs without suffering from a bad drain ? I dont think allowing it to sleep helps much since i would like to know immediately when an email or a Whatsapp message comes in.
Really would appreciate info on this. thanks!

Hoping for some clarification. Does anyone here run Jellybean Wifi throughout the day without significant battery drain ?

As far as I know, AOSP based roms always have less battery life than sense based roms. Are you able to flash any of the sense based JB roms? I used OrDroid v10 and v11 for a while and had excellent battery life and screen on time. That was with mobile data on. WiFi was even better.
Sent from my HTC One X using Tapatalk 2

Thanks for the input!
So it isn't a generic problem, and I must have had something else factoring in here. I think my CID is supported, but I haven't bothered updating firmware after reading one user review about poor wifi battery life in the ordroid thread.
Even on aosp jb roms, i had decent battery life as long as i didnt use wifi. Did you use wifi over an extended period, like the whole day, and still have decent performance?
If you're certain that ordroid delivers the same wifi battery life on jb and ics, ill take the plunge!
Thanks!

I'm stock and I haven't noticed any difference between ICS and JB. I'm usually connected to WiFi and always leave it "on".

BenPope said:
I'm stock and I haven't noticed any difference between ICS and JB. I'm usually connected to WiFi and always leave it "on".
Click to expand...
Click to collapse
Is the wifi sleep policy also set to Never ?

zigackly said:
Is the wifi sleep policy also set to Never ?
Click to expand...
Click to collapse
Keep WiFi on during sleep: Always
Best WiFi performance: on

Ive been using pabx's JB Rom for any Hboot 4.2.1 AOSP and not having any issues with wifi drain on jellybean. Thought id post it here so anyone else searching with the same problem can try it out. In fact, i got 3.5hrs of screen time which is something ive never seen in my life!
The link to the rom is below.
http://forum.xda-developers.com/showthread.php?t=2013506

battery drain with wifi

hi,
my gnote2 is new and I have a (big) issue with it.
I'm running android 4,1,1 no specific apps (all stock).
With 3g enable everything is ok but with wifi there isa big battery drain. I read that it could be a router issue so I tried to change my network number I switched from 10 to 1. It fixed the problem !!! BUT unfortunately I switched of the wifi last night and switch it on this morning ... the battery drain re start like before.
Is there a way to solve this big issue ==,
thanks for your help

wifi sleep policy set as never.

yerebakan said:
wifi sleep policy set as never.
Click to expand...
Click to collapse
thanks for your answer yerebakan but it is already the case

Maybe you must configure your router from factory mode and then in your phone forget old router name. try!

yerebakan said:
Maybe you must configure your router from factory mode and then in your phone forget old router name. try!
Click to expand...
Click to collapse
I tried also. I have even changed my router. The only things which worked is to change the chanel frequency. But lost the benefit each time I shut of/restart wifi on the note.

preshovich said:
hi,
my gnote2 is new and I have a (big) issue with it.
I'm running android 4,1,1 no specific apps (all stock).
With 3g enable everything is ok but with wifi there isa big battery drain. I read that it could be a router issue so I tried to change my network number I switched from 10 to 1. It fixed the problem !!! BUT unfortunately I switched of the wifi last night and switch it on this morning ... the battery drain re start like before.
Is there a way to solve this big issue ==,
thanks for your help
Click to expand...
Click to collapse
Are you rooted? If yes download BBS, connect to your wifi and leave the phone on stand by for 30 minutes then check for kernel wakelocks. You will probablyvfind that your phone does not go into deep sleep because of wlan_rx_wake. That has to do with dhcp
Swyped from another galaxy

How much battery drain are we talking about? 1%/hour? 5%/hour?

skivnit said:
Are you rooted? If yes download BBS, connect to your wifi and leave the phone on stand by for 30 minutes then check for kernel wakelocks. You will probablyvfind that your phone does not go into deep sleep because of wlan_rx_wake. That has to do with dhcp
Swyped from another galaxy
Click to expand...
Click to collapse
I'm not rooted but the phone goes in DS well.
rilot said:
How much battery drain are we talking about? 1%/hour? 5%/hour?
Click to expand...
Click to collapse
in fact the battery drain is x3 if I compare to 3g, each time I switch on wifi I can clearly see a big drop on the battery curve