About a week ago, I noticed my EVO was rapidly discharging its battery. In an attempt to find the culprit, I bought the SystemPanel App from the market and enabled CPU usage tracking. My phone returned to normal after a restart, so i just let the tracking keep running. Today, I again noticed my battery draining extremely fast when I got into work. I went into SystemPanel, and looked at the usage...
At whopping 42% of my CPU usage was allocated to the android "suspend" system app. It's global average for the past week was only 1.2% before this morning. Obviously, this app is doing something in the background and killing my battery. Does anyone here have any idea what may be going on?
guys i want to know if the battery life of your lumia 900 is good? mine sucks, I got the phone about 10 days ago, I find the battery drains very fast. normally the first 3-4 hours are good, but then it will drop like 20% within 30 minutes, then drains very fast, after around 10 hours it's only 20%ish. I use the phone in normal way, check emails as they arrive (about 20 emails a day), text 10-20, phone call 20-30mins, that's all.
I live in UK. first time I launch Nokia Music it stopped response, I had to reset my phone for it to work properly.
is this normal? what should I do to improve the battery life?
I found the battery life alot better on the 900 than my Titan and Lumia 800, I have 2 email accounts on sync every 15 mins and just a weather app running in background, I have tried hard to run the battery out in a day of heavy use and just managed it, It can depend greatly on how strong your signal is from your Network provider as if it has to struggle to find 3G or keep switching then this will drain the battery more, Maybe change email sync to either every 15 min or 30 min to see if that helps, Screen time-out at 30 secs and dark theme can also help conserve power, Check background tasks in settings and switch off unnecessary apps, Also a new battery will need several charges/discharges before it reaches its optimum capacity, Try not to run the battery out completely, Normally just after you get the low battery warning is best then charge overnight.
AndyFZ1S said:
I found the battery life alot better on the 900 than my Titan and Lumia 800, I have 2 email accounts on sync every 15 mins and just a weather app running in background, I have tried hard to run the battery out in a day of heavy use and just managed it, It can depend greatly on how strong your signal is from your Network provider as if it has to struggle to find 3G or keep switching then this will drain the battery more, Maybe change email sync to either every 15 min or 30 min to see if that helps, Screen time-out at 30 secs and dark theme can also help conserve power, Check background tasks in settings and switch off unnecessary apps, Also a new battery will need several charges/discharges before it reaches its optimum capacity, Try not to run the battery out completely, Normally just after you get the low battery warning is best then charge overnight.
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thanks for the tips mate. i've changed the sync to every 15mins. I also manual input apn option and turn of the location service. hope this will help...
Are you connected to a MicroCell anytime during the day. They are known to drain battery quickly. I have a lot more running than you (email & background) and my average "screen off" drain is about 3.5% per hour, or 56% per 16 hour day. That leaves me about 4 hours of screen on time before my battery is nearly drained (screen on/data/calls drains another 9-10% per hour). Pretty impressed with my battery actually.
Sent from my Lumia 900 using Board Express Pro
How do you guys measure the % drain per hour on the lumia? I know android does like a graph and stuff is there an app for it?
I have
Four email sync
Twitter
facebook
weather app
and take photos
and a few calls.
lasts me anything between `12 hours - heavy use to around 19 hours of mild to normal use and am actually quiet impressed with the battery.
Suggestions :
Turn off WIFI when not in use as it uses power to search for signal
Poor Network coverage will DRAIN battery as well.
Disable any Background tasks which you do not need.
And I charge my phone every night regardless of the battery percentage even if its 50% left
Search feature of the forumn... is it good?
thread in this forum all about battery life.
If you are in a known WiFi area, like home or work, no need to turn off WiFi. Uses less power for data transfer than LTE, but of course, may be a bit slower. Out and about and have your screen on a lot; might be a good idea to turn of WiFi. WiFi uses almost 0 power when your phone is sleeping.
Just finished a series of Background Task tests. Comparing drain with tasks enabled/disabled. About 0.5% per hour or 8% per 16 hour day. That's with 8 tasks running; USA Today, Fox News, Weather Channel, Mehdoh, Urban Dictionary, Network Dashboard, Clever-To-Do and Battery Meter. Btw, Battery Meter is a homebrew app, but you can check percentages on the Settings>Battery Saver screen.
Sent from my HTC Surround using Board Express
tfn said:
How do you guys measure the % drain per hour on the lumia? I know android does like a graph and stuff is there an app for it?
I have
Four email sync
Twitter
facebook
weather app
and take photos
and a few calls.
lasts me anything between `12 hours - heavy use to around 19 hours of mild to normal use and am actually quiet impressed with the battery.
Suggestions :
Turn off WIFI when not in use as it uses power to search for signal
Poor Network coverage will DRAIN battery as well.
Disable any Background tasks which you do not need.
And I charge my phone every night regardless of the battery percentage even if its 50% left
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Click to collapse
The diagnostic mode will help see the battery percentage and power drained per second.
Just press ##634# and you will be able to see it.
ehe12 said:
The diagnostic mode will help see the battery percentage and power drained per second.
Just press ##634# and you will be able to see it.
Click to expand...
Click to collapse
I do know about the diagonistic mode... but uninstalled it as there are rumours it eats battery as well
Why would the Diagnostic App, which can't be uninstalled, as its part of your ROM, have anything to do with draining your battery. How do these rumors start. Guess this is another "truth" I will have to prove. Running a series of articles on Mobility Digest to squash all these urban legends. So far, push email, battery saver and background tasks. More to follow.
Sent from my Lumia 900 using Board Express Pro
I don't think it does, I loaded it up yesterday to check what my battery drain was, since then my phone has used 27% in 22 hours. Perhaps it uses a lot of power while you're using it, but surely not just by having it installed.
jimski said:
Why would the Diagnostic App, which can't be uninstalled, as its part of your ROM, have anything to do with draining your battery. How do these rumors start. Guess this is another "truth" I will have to prove. Running a series of articles on Mobility Digest to squash all these urban legends. So far, push email, battery saver and background tasks. More to follow.
Sent from my Lumia 900 using Board Express Pro
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Click to collapse
It can be uninstalled as I have installed and uninstalled it quiet a few times now, probably it on a hidden partition of the ROM, but you can remove it.
Just for the sake of it I kept it all day today and my battery life was not affected as such,, so rumours are rumours after all
No, all you are doing is making it visible or invisible. Its always there. Do you actually see it installing like a Marketplace app, or does it just magically appear when you type in ##634# (or whatever it is). Oh, never mind.
Sent from my Lumia 900 using Board Express Pro
Got the phone brand new yesterday so below are the first discharge stats with wifi ON only and cellular data off and max speed set to edge.
Remaining battery: 57%
Time since last charge 7 hours.
I've been playing with it from time to time since I unplugged it. 2 emails fetching every 15 minutes, whatsapp, downloading and testing apps.
How does it rank for a first discharge?
Difficult to say. The first thing you should do is dial ##634# on the phone keypad which installs the diagnostic app, then you can check the battery discharge rate. It usually jumps around for a few seconds and then settles down to around 90mA - 110mA. If it's higher than this, something is draining the battery.
I'm finding that sometimes various apps seem to start up some sort of process that continues to drain the battery even when it's not doing anything, and the best thing to do in that case is a soft reset.
Doing this I managed 60 hours between the last two charges, and since then I've gone 80 hours with 29% still left. That's with very light use and no apps installed though.
redwhiteandblue said:
Difficult to say. The first thing you should do is dial ##634# on the phone keypad which installs the diagnostic app, then you can check the battery discharge rate. It usually jumps around for a few seconds and then settles down to around 90mA - 110mA. If it's higher than this, something is draining the battery.
I'm finding that sometimes various apps seem to start up some sort of process that continues to drain the battery even when it's not doing anything, and the best thing to do in that case is a soft reset.
Doing this I managed 60 hours between the last two charges, and since then I've gone 80 hours with 29% still left. That's with very light use and no apps installed though.
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Click to collapse
My drain reads around 100ma so I guess I'm good.
i'm not getting good usage with the battery now, on my 3rd charge, and so far only able to last 1 day, and i'm not even consider as a heavy user, no text, only few whatsapp (around 10) 15-20min calls and little browsing and market downloads. i didn't even on the auto update for emails... hope that the battery will improve after a few more charge...
My Nexus is currently at 50% battery life. Of the 50% that went by, the two highest contributers are screen on (50%) and phone idle (20%). All this time, the phone has been on airplane more (with wifi). Why is phone idle so high?
TSGM said:
My Nexus is currently at 50% battery life. Of the 50% that went by, the two highest contributers are screen on (50%) and phone idle (20%). All this time, the phone has been on airplane more (with wifi). Why is phone idle so high?
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Could be an app/process waking the phone. For more advanced battery usage troubleshooting, try an app like BetterBatteryStats.
Petrovski80 said:
Could be an app/process waking the phone. For more advanced battery usage troubleshooting, try an app like BetterBatteryStats.
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Click to collapse
Could very well be this! I installed Google Wallet yesterday and I did notice some drain from this app. Better battery stats tells me it's contributed to 2 hours! I'm going to force close and wipe the apps data.
Sent from my Galaxy Nexus using xda app-developers app
TSGM said:
My Nexus is currently at 50% battery life. Of the 50% that went by, the two highest contributers are screen on (50%) and phone idle (20%). All this time, the phone has been on airplane more (with wifi). Why is phone idle so high?
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Click to collapse
Phone idle is so high because your phone hasn't otherwise used any power. Even just sitting around is going to use some juice, hence the high percentage attributed to idle. Since you haven't really used it, other processes shouldn't have consumed as much.
Look at it in perspective. Your battery stats are going to tally up to 100%, or reasonably close. If absolutely nothing else at all consumed any power whatsoever, phone idle would show 100%.
Sent from my Galaxy Nexus using Tapatalk 2
najaboy said:
Phone idle is so high because your phone hasn't otherwise used any power. Even just sitting around is going to use some juice, hence the high percentage attributed to idle. Since you haven't really used it, other processes shouldn't have consumed as much.
Look at it in perspective. Your battery stats are going to tally up to 100%, or reasonably close. If absolutely nothing else at all consumed any power whatsoever, phone idle would show 100%.
Sent from my Galaxy Nexus using Tapatalk 2
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Exactly this!
If you feel that the phone gets more battery life, you shouldn't worry. It's normal.
If you feel that the phone consumes more battery (Hence lower battery life), then check betterbatterystat or CPUspy, just in case it the phone isn't getting those deep sleeps.
I'm running CM10 10.0 Stable and the latest Lightening ZAP Kernel.
I've always had problems with battery life that are somewhat random. Sometimes my phone will last over 24 hours with the same usage as when my phone decides to die in 8 hours. This is very concerning because I know a phone should not be this random with the same apps and usage charge after charge.
I've relentlessly searched for the wakelocks that keep this crazy phone awake using BetterBatteryStats, CPU Spy, Battery Monitor Widget and GSam Battery Monitor. My average charge time on a rooted stock 4.0.4 was about 20 hours. My average time on CM10 stable is 8 hours. I now carry around an external USB battery all the time because of this with a wall charger and multiple micro USB cables in my arsenal.
Now I'm playing with undervolting but I know that's not getting to the source.
My phone does seem to go into deep sleep when unplugged but only 50% of the time. I've read that VBUS_PRESENT is when charging with a non friendly charger. Well I've been using a stock Samsung charger that came with my phone and it still shows up. WLAN_RX_WAKE I'm totally not sure of...it uses a huge amount of time keeping the phone awake why?? I'm not sure. It didn't used to do this and I leave WiFi, Data, and Syncing on. I have the same outcome whether Google Now is on or off as well.
Any help would be really really appreciated. I think I have battled battery run time since I started using Android. I wish it wasn't like that because I love the openness of the operating system compared to iOS which I have used in the original iPhone and every generation up to the iPhone 4. If you guys require screenshots I'd be more than happy to give them. There are so many smart minds here that know far more than me and I know it!!
I'm having the same issue running Gangnam Style CM10 on my Evo 3D. I'm seeing huge wlan_rx_wake wakelock that I haven't seen on any other ROM (same networks).
Apparently, it's multicast network traffic that the phone should ignore, but instead wakes up and replies.
Sucks.
Hmmm strange. I reformatted my phone and wiped everything clean...and reinstalled CM10 stable with the newest lighting zap kernel. But now the phone app is taking a massive amount of power from wakelocks and CPU. My phone is left with a higher than average CPU idle running at 1566MHz for 40% of the time before my battery dies at 10%/hour. Something is really up and I can't figure it out. I know that when my phone was operating at 4+ hours per charge the temp would be under 30C. Now running at idle it's 33C. I normally never feel the back of the phone heat up near the camera LED but now it sometimes feels warm or hot when it's deciding to try to deplete power within a few hours. This is a strange thing....I don't hear of people with CM10 having this problem...or does everyone think having an 8-10 hour burn time is normal?
Just switched to Slim Bean ROM (JB) and still have wlan_rx_wake jamming me up on wifi networks.
u guys need to change the settings under the advanced menu to tell your phone when to enable/disable WiFi sleeping, the delay amount, that's what the wlan_RX wakelock is
as the op stated,vbus is indeed when using a charger other than the stock Samsung one that came with your phone
What should the delay amount be? I used to have it set to 5 minutes under "only when plugged in". I use my OEM Samsung charger and nothing else but I still get vbus.
I just did a test and turned all data and wifi off. Battery drain has been completely normal at less than 1%/hour. This is great so now I need to find my internet culprit. I get the same type of nasty battery drain with Wifi on, Data on, Wifi & Data on.
icenight89 said:
u guys need to change the settings under the advanced menu to tell your phone when to enable/disable WiFi sleeping, the delay amount, that's what the wlan_RX wakelock is
as the op stated,vbus is indeed when using a charger other than the stock Samsung one that came with your phone
Click to expand...
Click to collapse
I'd rather have the wifi never sleep. Why use a low speed, higher power radio (3g) when you have access to a wifi network.
Wlan_rx_wake never kept the phone awake on gingerbread ROMs.
Hi all,
Over the last three days I've been having some trouble with my S3's battery. Recently I've been experiencing large battery drain while not using the phone excessively. Today within 20 minutes of unplugging the phone from a full charge it read 40% charge. It's almost as if I am lacking 60% of my battery.. From when I got the phone (on release day), I had never found the battery to be very impressive. The advertised 800 hour standby time has always been far out of reach, and I often found myself having to plug the phone in after 7-8 hours, (I'm a student, so it's away all day as I'm in class, i.e, low use.)
I don't use WiFi (I have 7GB/mo data), I don't use automatic brightness (held between 5-20%), GPS is on (For some Tasker profiles, but is rarely used), and I have never used NFC/S-Beam.
I have done factory resets, two since having issues with the battery. The phone is rooted and is running CM 10.1-20130203-NIGHTLY-d2att, I thought that updating the CM build might help (Feb 3rd as you can see), but hasn't. Also it is underclocked to MAX 810mHz. Battery usage statistics pins the main user as the screen, but I feel this is false.
I'm thinking of buying a new battery, might that help?
TL;DR: I'm having battery problems, and have tried all the normal fixes I could find online. See the attached images for battery details.
Any suggestions are appreciated!
Thanks!
Zev.Isert said:
Hi all,
Over the last three days I've been having some trouble with my S3's battery. Recently I've been experiencing large battery drain while not using the phone excessively. Today within 20 minutes of unplugging the phone from a full charge it read 40% charge. It's almost as if I am lacking 60% of my battery.. From when I got the phone (on release day), I had never found the battery to be very impressive. The advertised 800 hour standby time has always been far out of reach, and I often found myself having to plug the phone in after 7-8 hours, (I'm a student, so it's away all day as I'm in class, i.e, low use.)
I don't use WiFi (I have 7GB/mo data), I don't use automatic brightness (held between 5-20%), GPS is on (For some Tasker profiles, but is rarely used), and I have never used NFC/S-Beam.
I have done factory resets, two since having issues with the battery. The phone is rooted and is running CM 10.1-20130203-NIGHTLY-d2att, I thought that updating the CM build might help (Feb 3rd as you can see), but hasn't. Also it is underclocked to MAX 810mHz. Battery usage statistics pins the main user as the screen, but I feel this is false.
TL;DR: I'm having battery problems, and have tried all the normal fixes I could find online. See the attached images for battery details.
Any suggestions are appreciated!
Thanks!
Click to expand...
Click to collapse
Get the app BetterBatteryStats to narrow down what's draining your battery.
Also, being so UV = takes longer to load stuff = longer screen time = more battery usage. UV too much results in higher battery drain.
Okay but...
BWolf56 said:
Get the app BetterBatteryStats to narrow down what's draining your battery.
Also, being so UV = takes longer to load stuff = longer screen time = more battery usage. UV too much results in higher battery drain.
Click to expand...
Click to collapse
Okay I just bought Better Battery Stats, I'll let it analyze whats going on for the next few days.. And I assume UV means under voltage? Either way I put the processor speed back up to default (1512 mHz). But that still doesn't explain the 60% battery drop in 20 minutes after being unplugged.
I don't think it is possible for your phone in any case to drain 60% in 20 minutes. That's a ton of power usage, your phone would probably melt if it was using that much. Sounds like your phone is not reading your battery level properly. You may want to try resetting your battery stats, however I have heard that the s3 battery monitors its own level. In this case you probably would be better off just getting a new battery.
Sent from my SGH-I747 using xda app-developers app