Develop Bugs

[Q] Battery usage

I just got a new desire after my previous one got stolen.
I found out the battery of my new handset last dramatically less than the previous one...it doesn't even last one day!
I reduced the screen brightness to 20% and deactivated the 3g mobile data but on the battery screen usage it says as follows:
cell standby 31%
phone idle 30%
android system 23%
display 7%
voice calls 5%
internet 2%
dialer 2%
why would the usage be so high when the phone is in standby? why would it be so high for the phone idle?
I also found out it takes ages to shut down completely...is there anything running underneath that I can stop?
please advice the optimization setting to try to improve battery life please
thanks in advance

The percentages just express which parts of the battery drain (lets say you are on 68% --> 32% drained) have been used by which activity of the phone (so they are not absolute but relativ values).
In a combination of your and my example this would mean.
30% cell standby --> 30% of 32% is at least only 1/9th of the whole battery.
Hope you get what i am trying to explain

I see where you come from but I don't think this can explain why I need to charge it every 5 hours.

Have you calibrated it,?? Search battery calibration, and try that.

Is your phone rooted michaelss16???

no my phone is not rooted but I think I managed to sort it out!
set it up as follows:
MENU> settings>wireless and network>wi-fi seettings>menu>advanced> wi-fi sleep policy> after 15 minutes
MENU> settings> sound and display>brightness> uncheck automatic brightness> reduce brightness manually by sliding it down to no more than 30%
MENU> settings> sound and display>screen timeout> set it no more than 1 minute
MENU>settings>account and sync>uncheck background data (it is possible to check it manually by refreshing it everytime is needed)
MENU>settings> Location> uncheck both "use wireless networks" and " use GPS satellites"
MENU> friendstream>menu>settings>Accounts and sync>for any of your active accounts(facebook, flickr, twitter) go to account settings>update schedule>set it up not more often than every 4 hours. (you can update it manually anytime you want)
MENU>Latitude>menu>privacy>turn off latitude. (it is possible to turn it on when maps app is needed...don't need it on all the time)
MENU>Stocks>menu>advanced>uncheck auto-sync data (you can refresh as needed)
MENU>weather>menu>settings>uncheck update automatically (agai nit is possible to update it manually by hitting refresh button)
In addition when in charge at night I shut mobile network off (I don't check updates-mail or post if I sleep)
Since I don't expect any phone call at night I turned the radio off by dialing *#*#4636#*#* >phone information>turn off radio (don't do it if a phone call is expected).
it is also possible to access battery history to check through all the processes running on the background and using power,CPU memory and bandwidth. ( the menu settings battery information refer only to the TIME of each process draining the battery and not the amount of battery drained by each process).
Now I understand why phone idle and standby was so high when checked in the morning..they are the only processes running at night when the phone is in charge if it is on).
Hope it can be usefull ....now it says 14h 52m and 13s since unplugged and battery level is still 54!

michaelss16 said:
no my phone is not rooted but I think I managed to sort it out!
set it up as follows:
MENU> settings>wireless and network>wi-fi seettings>menu>advanced> wi-fi sleep policy> after 15 minutes
MENU> settings> sound and display>brightness> uncheck automatic brightness> reduce brightness manually by sliding it down to no more than 30%
MENU> settings> sound and display>screen timeout> set it no more than 1 minute
MENU>settings>account and sync>uncheck background data (it is possible to check it manually by refreshing it everytime is needed)
MENU>settings> Location> uncheck both "use wireless networks" and " use GPS satellites"
MENU> friendstream>menu>settings>Accounts and sync>for any of your active accounts(facebook, flickr, twitter) go to account settings>update schedule>set it up not more often than every 4 hours. (you can update it manually anytime you want)
MENU>Latitude>menu>privacy>turn off latitude. (it is possible to turn it on when maps app is needed...don't need it on all the time)
MENU>Stocks>menu>advanced>uncheck auto-sync data (you can refresh as needed)
MENU>weather>menu>settings>uncheck update automatically (agai nit is possible to update it manually by hitting refresh button)
In addition when in charge at night I shut mobile network off (I don't check updates-mail or post if I sleep)
Since I don't expect any phone call at night I turned the radio off by dialing *#*#4636#*#* >phone information>turn off radio (don't do it if a phone call is expected).
it is also possible to access battery history to check through all the processes running on the background and using power,CPU memory and bandwidth. ( the menu settings battery information refer only to the TIME of each process draining the battery and not the amount of battery drained by each process).
Now I understand why phone idle and standby was so high when checked in the morning..they are the only processes running at night when the phone is in charge if it is on).
Hope it can be usefull ....now it says 14h 52m and 13s since unplugged and battery level is still 54!
Click to expand...
Click to collapse
Basically you just did what I always recommended you, update manually all the applications, except for the radio, I just turn off the mobile data so I can still receive calls...

Battery drain and overclocking
I rooted my phone and installed Runnymede AIO v6.0.4.1. After installing i guess a default value has been set for the OCD as around 996000. I later changed it to the highest value and played a game. with in minutes my battery drained to 30% from 70%.
I mainly rooted my phone so that the memory constraint in HTC Desire can be done with so that i could install more and more apps and games.
I NEED TO PLAY GAMES and WHAT WOULD BE THE BEST VALUE to keep FOR OCD, so that my phone is fast and i could play games without even a minor lag.
And i also have another problem, in call history i dont see names against the calls made. However i can see those people in my contact list with names and numbers, but in call history i see only numbers and a + sign asking me to save to contacts.........
Can anyone help??
--If this is an irrelevant question in this thread, can you suggest me the correct thread, i searched and i searched but couldn't find to end on one........

phsetaknev said:
--If this is an irrelevant question in this thread, can you suggest me the correct thread, i searched and i searched but couldn't find to end on one........
Click to expand...
Click to collapse
Does the "new thread" button not work for you? Hijackers should be prosecuted
For long time I was using Starburst ROM (stock + D2SD on SNQ kernel). It was really good in performance and battery saving due to basic Sense 2.2. I could play AngryBirds couple hours long. The major factor was screen brightness to be dimmed a bit. Since I dropped gaming behavior I had no experience with other ROMs/kernels I was trying.
-andy.

[Q] What's draining the battery so quickly? :S

My phone loses battery at a phenomenal rate. Overnight it goes from 100% to 75%, then this morning it went from 70% at 9:00 to 10% at 12:00, what's draining it so badly, in both cases it's been inactive.

Check if your phone keeps syncing with your accounts.
That is one area which drains the battery.

I left Wi-Fi off so it wouldn't be that

Battery is disaster... I have same problems.

Could be the /INIT bug, which will go away if you enable USB debugging.
Press Menu then:
Settings > Applications > Development > USB Debugging (tick it)
Also, check your sync settings as iAltair suggested.
Press Menu then:
Settings > Accounts & Sync
Turn off anything you don't use and for the stuff you do use set a reasonable sync time like 3hrs.
Don't forget to check calendar sync settings too as when I first set up my phone it added calendars I didn't want to use. To do so, open the calendar and press menu.
You can also check battery usage but I can't remember how since I used BetterCut to create a homescreen shortcut for it. It's in the settings somewhere though!

Could also be the problem with HTC Sense sync. Try to disable that completely. For me that was the problem which for some reason made the CPU work at nearly 100% constantly. After I disabled that my battery lasts 18-20 hours during heavy use.

iAltair said:
Check if your phone keeps syncing with your accounts.
That is one area which drains the battery.
Click to expand...
Click to collapse
kamranh3 said:
I left Wi-Fi off so it wouldn't be that
Click to expand...
Click to collapse
It will still sync over wi-fi which will drain battery, also wi-fi itself will drain battery if left on

mngmng said:
Battery is disaster... I have same problems.
Click to expand...
Click to collapse
Battery is fine, for most users!

ghostofcain said:
Battery is fine, for most users!
Click to expand...
Click to collapse
After week if usage. I initially it was bad.
Sent from my Desire HD using XDA App

I have this problem when I do OTA 1.72. Right now I'm still in1.72, but with root s.cid,etc...etc..etc... and I see and high use of battery. Read a couple oft thread about and:
disable all sync (htc,google,weather,news) but it's on for market.
On and OFF usb debug
So try everythig.
Today I found the setting/phone info/battey/battery usage.
ALL is fine, all IS under 10% except DISPLAY, it's run from 55 to 69% !?!?!? Possible?
Possible tweak?
How much % your dispaly use?
ROM revolution 2.0.4
Andorid 2.2.1 - 1.72
kernel....haven't the phone in my hand, it's charging at 1st floor.

also check email setting as the on-peak(checks every 15mins) and off-peak(can't remember think every hour) but on-peak starts at 8am-8pm this is by default. depending how many emails you have, this could drain battery quite a bit too.
and doesn't matter if you have wifi and moblie data off the apps will still try an sync.

Do nothing except install currentwidget to log use of battery, for report here.
From 02.00pm to 4.14pm, display use from 30% to 42% .
Sent from my Desire HD using XDA App

Check right now, up to 30m with phone in standby it's on 58% Aldo after few refresh.
Boh.....
Sent from my Desire HD using XDA App

mine's lasting about 2 days...but i recognized a higher drain the last days..
also on 1.72...hopefully the new bugfixes will come..as you know the 1.72 update has some (major) bugs. (not for me btw )
my display is at 30%...
DN41

I had the same issue yesterday I discovered that HTCsync account was getting stuck in an infinite update loop I just disabled that account now battery all good again.
Sent from my Desire HD using XDA App

Display uses a lot of battery. It is Big. My usually uses about 50%. Currently it is at 60%. I use screen display brightness at auto.
Regards, Ales

I set bright to auto. I think it isn't the problem. Sometime it's 60, or45, and also 33% of battery use. I charge phone all night. Pickup at 07.45, i disable also email check. I drain about 10% of battery for hour. After 3h39m I'm at 61%. During this time the phone was standby for 90% of the time.
LOL
Sent from my Desire HD using XDA App
edit from homepc
check battery right now, no kind of charge since this morning, when go work.
Unplugged since 5H47M56s!! <----
Normal use.
Display activite time is 1H48M37S
System operative Android 42m12s
tot CPU 27m57S
ALL OTHER info are irrilevant, they are ALL down 5%
DISABLE ALL account, sync etc...etc...etc....
And now...Ladies...and Gentleman...the battery is........drums........drums......drums........32%!!!!!!
Standing Ovation!!!!
LADIES AND GENTLEMAN finally we have THE Winner!!! Wiwaxia !!
Now chargin, then go out again. Brigthness are now set to 25%.

i checked the battery status and the "android OS" is always at the top, is this just my one or does anyone else have this problem?

Why does the "Best WiFi performance" setting drain the battery so much?

When I got my Dinc2 last week I automatically ticked the "Best WiFi performance" checkbox in the WiFi advanced settings, without thinking about it much. But then I realized it must be the WiFi setting that's draining my the battery so quickly overnight. As an example, during a 7-hr period last night with hardly any email polling, my battery drained from 50% to only 15% capacity (that's about 5% per hour). My wife's original Inc only dropped 2-3% during the same period, sitting right beside mine. And you could see the graph in my battery stats take a constant straight-line nosedive from the moment I turned the WiFi on. So I unchecked the "best performance" feature immediately this morning, and will see how the phone performs tonight without it.
What does this "Best performance" setting do? Is it only necessary for something with a high data need like VoIP or media streaming?
Thx,

WhistlingDog said:
When I got my Dinc2 last week I automatically ticked the "Best WiFi performance" checkbox in the WiFi advanced settings, without thinking about it much. But then I realized it must be the WiFi setting that's draining my the battery so quickly overnight. As an example, during a 7-hr period last night with hardly any email polling, my battery drained from 50% to only 15% capacity (that's about 5% per hour). My wife's original Inc only dropped 2-3% during the same period, sitting right beside mine. And you could see the graph in my battery stats take a constant straight-line nosedive from the moment I turned the WiFi on. So I unchecked the "best performance" feature immediately this morning, and will see how the phone performs tonight without it.
What does this "Best performance" setting do? Is it only necessary for something with a high data need like VoIP or media streaming?
Thx,
Click to expand...
Click to collapse
Never seen that? What rom you running?
Sent from my Incredible 2 using xda premium

knipp21 said:
Never seen that? What rom you running?
Sent from my Incredible 2 using xda premium
Click to expand...
Click to collapse
Its on the stock sense rom and I have seen it on Skyraider Zeus' roms.
Settings > Wireless & networks > WiFi Settings > (press menu button at bottom) > Advanced
It's buried deep in the settings.

I wonder if it decreases the wifi scan interval? That would certainly explain the battery drain.
Sent from my Incredible 2 using xda premium

klabit87 said:
Its on the stock sense rom and I have seen it on Skyraider Zeus' roms.
Settings > Wireless & networks > WiFi Settings > (press menu button at bottom) > Advanced
It's buried deep in the settings.
Click to expand...
Click to collapse
Right you are. And because my Dinc2 is only a week old, it's still running the stock 2.1 Sense rom on Gingerbread 2.3.4
Tonight I'll start some testing... one night with the "standard" performance WiFi, the next night without any WiFi (or 3g) on.

WhistlingDog said:
Tonight I'll start some testing... one night with the "standard" performance WiFi, the next night without any WiFi (or 3g) on.
Click to expand...
Click to collapse
So the results are in. Over the past 3 nights, I let my phone sit overnight in different wifi configs, to get an idea of the effects of the different WiFi configurations. In each case with the same minimal email polling and no other main apps running. It's a brand new phone, running 2.3.4 and Sense 2.1 (I haven't rooted it yet).
It turns out that Sense's "Best performance" WiFi setting eats up battery at a MUCH higher rate than anything else, approximately 10x hungrier than the regular wifi settings or no wifi or 3g at all. And the regular WiFi setting uses virtually no battery when there's nothing much downloading. Here's the raw data:
Best performance WiFi > 7 hrs produced a 35% drop in battery (5% per hour)
Regular WiFi (Best perf unchecked) > 10 hrs produced a 2% drop (0.2% per hour)
Both WiFi and 3g off > 7.5 hrs produced 2% drop (0.26% per hour)
So it's the regular WiFi config for me; YMMV.

WhistlingDog said:
So the results are in. Over the past 3 nights, I let my phone sit overnight in different wifi configs, to get an idea of the effects of the different WiFi configurations. In each case with the same minimal email polling and no other main apps running. It's a brand new phone, running 2.3.4 and Sense 2.1 (I haven't rooted it yet).
It turns out that Sense's "Best performance" WiFi setting eats up battery at a MUCH higher rate than anything else, approximately 10x hungrier than the regular wifi settings or no wifi or 3g at all. And the regular WiFi setting uses virtually no battery when there's nothing much downloading. Here's the raw data:
Best performance WiFi > 7 hrs produced a 35% drop in battery (5% per hour)
Regular WiFi (Best perf unchecked) > 10 hrs produced a 2% drop (0.2% per hour)
Both WiFi and 3g off > 7.5 hrs produced 2% drop (0.26% per hour)
So it's the regular WiFi config for me; YMMV.
Click to expand...
Click to collapse
Hmm... It has been a while since I ran stock, so I am not sure what 2.3.3 said, but on that ROM, I found that the settings performed similarly to the AOSP Android Wifi Sleep Policy. So Maximum Performance = never shut wifi off and the normal setting shuts off wifi when the screen is off. I never ran stock 2.3.4, so not sure about that one. On 2.3.3 I always had mine on Maximum performance because I use a lot of background data and having wifi on the whole time uses less battery than all the 3g would use overnight.
So, unless something changed, Regular shuts off wifi with the screen and max performance keeps it on all the time.
And stock I would only drop about 2-4% overnight with wifi on max and everything syncing. So unless something changed to 2.3.4, then something is either over-using your wifi because it is available or there is something else at play.
At any rate, everyone's usage is different, so use what works for you.

Actually I have the sleep policy set to never turn WiFi off and hand back to 3g... mostly because I use the "Unlock with WiFi" app and I don't want the phone relocking just 'cause the WiFi went to sleep. So Sense's "best performance" setting must do something else.
Who knows; I don't need better WiFi throughput so I'll stick with the regular WiFi settings which don't drain battery juice hardly at all when you're not actively using it.
Sent from my ADR6350 using xda premium

WhistlingDog said:
Actually I have the sleep policy set to never turn WiFi off and hand back to 3g... mostly because I use the "Unlock with WiFi" app and I don't want the phone revoking just 'cause the WiFi let go. So Sense's "best performance" setting must do something else. Who knows; I don't need better WiFi throughput so I'll stick with the regular WiFi settings which don't drain battery juice.
Sent from my ADR6350 using xda premium
Click to expand...
Click to collapse
Hmm... Must be a 2.3.4 thing. I don't remember it from 2.3.3. Maybe I just forgot about it, but I don't remember seeing it because I would have enabled it. I need some wifi boost at times. I am wondering if it is setting the wifi to keep it at max tx/rx power... Maybe if I can get some time I will try to see what I can find in the code.
---------- Post added at 10:49 PM ---------- Previous post was at 10:38 PM ----------
Well I checked the xml real quick as I am not at a workstation with all my software on it and 2.3.3 had it too. I always set the sleep policy right away, so it is possible I just set it and forgot about it.
I will see what I can drum up about what it does, as I am curious. If it is some sort of power boost, maybe it can be adapted to AOSP.

ABQNM said:
I will see what I can drum up about what it does, as I am curious. If it is some sort of power boost, maybe it can be adapted to AOSP.
Click to expand...
Click to collapse
Thanks for sleuthing...

So -
I just discovered this setting. I was downloading some google music after returning to Andy Bones Stock Rom - and figured I would give it a go.
When I get home, I am gonna use the speedtest app to see if I can actually move data faster or not. It seems like that would not be true, but who knows.
The setting DEFINITELY crushes the battery. It seems to be really fast DL (especially for pulling a large number of music files) but... I have no empirical verification for that claim.
Testing to come.

I found I average 1-2 mbps faster without it.
Sent from my Droid Incredible 2 using XDA App

standby wifi battery consumption

According to you it is normal that night the note 2 get to consume 14 % of battery standby time leaving the wifi active?
I sucks on average 2% for hour ... after 7 hours approximately 14%
I tried everything, I hibernated greenify almost everything (apart from whatsapp), I turned off sync but the result always the same ....

mysterionTM said:
According to you it is normal that night the note 2 get to consume 14 % of battery standby time leaving the wifi active?
I sucks on average 2% for hour ... after 7 hours approximately 14%
I tried everything, I hibernated greenify almost everything (apart from whatsapp), I turned off sync but the result always the same ....
Click to expand...
Click to collapse
Go intoWwifi setting, press menu button and select advanced settings. Play around with those options. I assume you're on Sammy 4.3 ROM?
KEEP WIFI ON DURING SLEEP = NO!
SCANNING ALWAYS AVAILABLE = NO!
Tun off wifi b4 u go to sleep always works too. Us Wakelock detector or Better Battery Stats apps to check on rogue processed too.
Good luck

tweeny80 said:
Go intoWwifi setting, press menu button and select advanced settings. Play around with those options. I assume you're on Sammy 4.3 ROM?
KEEP WIFI ON DURING SLEEP = NO!
SCANNING ALWAYS AVAILABLE = NO!
Tun off wifi b4 u go to sleep always works too. Us Wakelock detector or Better Battery Stats apps to check on rogue processed too.
Good luck
Click to expand...
Click to collapse
I'm on 4.1.2
For the app I checked and it seems no. ...I think it is due only to the wifi
Do you think it is normal that consumes 2% for each hour battery only for wifi active?
And 14% on the night, after 7 hours ago

[Q] Battery problem

I posted this in another thread but I'm not sure if it was the correct place so I moved it here.
I'm having big battery drain problems with my phone, please see screenshots for more information.
On the screenshots you can see that my battery lasted 7 hours one day and then almost 5 hours the other. I'm not sure what caused that, there was no major change in my daily routines with the phone, except maybe listened to music on my bluetooth headphones for more time than usual.
Here's my setup:
My phone is the LTE version (T999L)
I don't currently have any battery management apps (except for the battery monitor app "Wakelock Detector").
Stock 4.3
Not rooted
Screen is AUTO
Sync is ON
Wifi OFF during my work hours, I only turn it ON at home (at nights, but the battery is normally drained before that).
Bluetooth ON all the time because:
- The phone it's paired with my car
- I use BT headphones when at work
- And my Smart Watch 2 all day long
Casual gaming (I don't play much during the day, maybe for 30 minutes or less daily)
Can someone help me analyze this information to see what's wrong with my phone?

enveous said:
I posted this in another thread but I'm not sure if it was the correct place so I moved it here.
I'm having big battery drain problems with my phone, please see screenshots for more information.
On the screenshots you can see that my battery lasted 7 hours one day and then almost 5 hours the other. I'm not sure what caused that, there was no major change in my daily routines with the phone, except maybe listened to music on my bluetooth headphones for more time than usual.
Here's my setup:
My phone is the LTE version (T999L)
I don't currently have any battery management apps (except for the battery monitor app "Wakelock Detector").
Stock 4.3
Not rooted
Screen is AUTO
Sync is ON
Wifi OFF during my work hours, I only turn it ON at home (at nights, but the battery is normally drained before that).
Bluetooth ON all the time because:
- The phone it's paired with my car
- I use BT headphones when at work
- And my Smart Watch 2 all day long
Casual gaming (I don't play much during the day, maybe for 30 minutes or less daily)
Can someone help me analyze this information to see what's wrong with my phone?
Click to expand...
Click to collapse
My first guess would be to clear the data from any media related apps. Go into Settings > Apps > All Apps and look for any Media apps (including Downloads, Download Manager, Media Storage, any music apps you use, etc.). Then, click on them and click "Clear data".
Then reboot.
Let me know if that clears your battery drain.

Bass_Man25 said:
My first guess would be to clear the data from any media related apps. Go into Settings > Apps > All Apps and look for any Media apps (including Downloads, Download Manager, Media Storage, any music apps you use, etc.). Then, click on them and click "Clear data".
Then reboot.
Let me know if that clears your battery drain.
Click to expand...
Click to collapse
Thanks a lot for your reply Bass_Man25.
OK so I tried this, I cleared data of a bunch of apps (including music players). I basically sorted the app list by size and cleared the data of the most heavy ones (more than 5MB in data), rebooted and left it charging until today, I woke up at 6:30 AM unplugged phone and now at 12:32PM my battery is at 20%, I don't see much change.
I'm thinking there must be an app causing this drain because the bluetooth can't be causing it, but I can't figure out which one.
I've been thinking of backing up my phone settings and such with Kies, factory resetting it and testing it out unless someone else has another idea.

it seems you have weak to mid-range signal most of the day. also, assuming you're Wi-Fi is not actually on the entire time, to disable the wi-fi from always scanning in Android 4.3, you have to turn off\uncheck the option in Settings > Wi-Fi > press "Menu" > Advanced > "Always allow scanning". that will help a lot

Cobra281 said:
it seems you have weak to mid-range signal most of the day. also, assuming you're Wi-Fi is not actually on the entire time, to disable the wi-fi from always scanning in Android 4.3, you have to turn off\uncheck the option in Settings > Wi-Fi > press "Menu" > Advanced > "Always allow scanning". that will help a lot
Click to expand...
Click to collapse
Thanks for your reply Cobra281.
I actually don't have the WiFi ON during the day, unless my signal is pretty bad so I don't think that will change anything. And what do you mean with "it seems you have weak to mid-range signal most of the day."? Does having weak to mid-range signal drain my battery?

Have you tried Better Battery Stats? You can find a link here in XDA. Install that and let your ROM run for a while. It'll show you any kernal or partial wakelocks keeping the phone awake.
--EDIT-- Link: http://forum.xda-developers.com/showthread.php?t=1179809

enveous said:
Thanks for your reply Cobra281.
I actually don't have the WiFi ON during the day, unless my signal is pretty bad so I don't think that will change anything. And what do you mean with "it seems you have weak to mid-range signal most of the day."? Does having weak to mid-range signal drain my battery?
Click to expand...
Click to collapse
change the setting as i mentioned, because the Wi-Fi location scan is running, you have to run it via: turn off\uncheck the option in Settings > Wi-Fi > press "Menu" > Advanced > "Always allow scanning".
and yes, weak signal will cause more power use, as the phone is constantly trying to find decent service.