This app called 'screen filter' is causing extremely battery drain through 'android os' even when i shutted it down when i finished.
Afret few hours the battery down to 1%. I afraid that i will have to buy a new battery. Why the phone dose not shut down when it gose below to 10%?
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I've been using Screen Filter a lot for probably more than a year on different devices, including the Note. My Android OS is currently at 4 %. I'm not so sure this app is causing your drain.
The phone shuts itself off some time after reaching 1 % battery level.
I use screen filter daily and do not experience your issue. Check your other apps and be careful what you say about apps unless you are very sure.
Sent from my GT-N7000 using XDA
Ekofasc said:
I've been using Screen Filter a lot for probably more than a year on different devices, including the Note. My Android OS is currently at 4 %. I'm not so sure this app is causing your drain.
The phone shuts itself off some time after reaching 1 % battery level.
Click to expand...
Click to collapse
i'm pretty sure this is the reason for the battery drain. it's the second time it happened to me, last time i didn't knew what cause that.
after short search i found that thread:
http://forum.xda-developers.com/showthread.php?t=1016593
so im not the only one
1% for battery is too risky for ruin it, should be at least 7%
I have been using screen filter app for so long..haven't noticed extream battery drain..will try to remove the app and monitor my battery drain..
Sent from my GT-N7000 using Tapatalk
Yeah, you should check what's draining your battery and stop scaring unsuspecting users. Screen filter isn't your problem. It works perfectly. Open Bbs and check for partial and kernel wakelocks to discover what's causing your issues.
Sent from my GT-N7000 using Tapatalk
Why the ??? should you keep your battery @ 7% and now buy a new one ?
Instead of believing everything you hear and read, go to school and learn physics
My note often runs at 1% and my battery still holds charge like new.
Just don't let it empty without recharging for a longer period.
shirhh said:
This app called 'screen filter' is causing extremely battery drain through 'android os' even when i shutted it down when i finished.
Afret few............
Click to expand...
Click to collapse
Dude.. Basics of Li Ion Battery charging - to avoid memory effects in battery it is always advisable to let it runout to 1% & then recharge it to 100%.
This charging cycle ensures that your battery is performing at its peak.
Too many rechrages at intermediate levels like 30%, 50% etc reduces battery charge holding capacity.
So nothing is wrong with your battery...JUst recahrge it & enjoy.
There is nothing wrong with screen filter app. Have used it on multiple devices including note.
Sent from my GT-N7000 using xda premium
clive48 said:
Dude.. Basics of Li Ion Battery charging - to avoid memory effects in battery it is always advisable to let it runout to 1% & then recharge it to 100%.
This charging cycle ensures that your battery is performing at its peak.
Too many rechrages at intermediate levels like 30%, 50% etc reduces battery charge holding capacity.
So nothing is wrong with your battery...JUst recahrge it & enjoy.
Click to expand...
Click to collapse
This is wrong information. The memory effect only occurs when not discharging the battery fully during the first five cycles. Current batteries do not have even this behavior anymore.
The effect you are noticing is just the battery calibration software in your phone isn't that precise anymore if you only discharge your phone to ~30%. It then tends towards loosing "battery percents" more quickly. It will remain powered on at 1% for a long time.
Li ion don't suffer memory effect, nor decharge/recharge cycle times.
They just have a limited lifetime from date of Manufacturing.
And as I said, don't leave them discharged for a longer period of time,
they don't like that
Diewi said:
This is wrong information. The memory effect only occurs when not discharging the battery fully during the first five cycles. Current batteries do not have even this behavior anymore.
The effect you are noticing is just the battery calibration software in your phone isn't that precise anymore if you only discharge your phone to ~30%. It then tends towards loosing "battery percents" more quickly. It will remain powered on at 1% for a long time.
Click to expand...
Click to collapse
You're right, memory effect existed on NiMH batteries, Li-On's are not affected, in fact it's supposedly better for their life to avoid deep discharges:
Prolonging battery pack life wiki)
- Avoid deep discharge and instead charge more often between uses, the smaller the depth of discharge, the longer the battery will last.
- Avoid storing the battery in full discharged state. As the battery will self-discharge over time, its voltage will gradually lower, and when it is depleted below the low-voltage threshold (2.4 to 2.9 V/cell, depending on chemistry) it cannot be charged anymore because the protection circuit (a type of electronic fuse) disables it.
- Lithium-ion batteries should be kept cool; they may be stored in a refrigerator.
- The rate of degradation of Lithium-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures.
Also do not think that 1% reading on the display = deep discharge.
I actually had draining issues with my note, but after reseting the note fixed it. I had screen filter installed prior to the reset. Never installed it back like a couple other apps. . So cant really confirm what was causing this issue. The phone was always awake and did spent like 30% while i was sleeping...
Sent from my GT-N7000 using XDA
Moral of the story... Do some research before blaming a program that your not even 100% sure is your issue... Oh and I use it and have had no problems with screen filter...
Sent from my GT-N7000 using Tapatalk
Have been using screen filter on my tab and note for over a year. NO battery drain.
I was knew to Android with the Note, and initially took the battery stats at face value. Over time I've noticed nearly all my problems are somewhat masked by logcat.
There is a slight delay when displaying the batt usage details and nearly all the time the 'app' that is reported as using all my battery life is the last thing that logged data to logcat (and is briefly displayed as logcat before displaying some other app name). In my case it is nearly always AVG that is reported as a battery hog. Further investigation with a log viewer normally yields a different culprit so look carefully at what is using your juice - it probably isn't Screen Filter!
Related
Many reviewers of the xoom are getting 9+ hours of battery life with brightness at least 50% and running music in the background + some video.
I am not getting the 9 hours of battery life, but around 6 hours tops. Is anyone else?
Please post your battery life 'display usage' time. I feel like I have a bad xoom.
Again, if people can post their 'display' usage time, that'd be great. Meaning, the time the display was actually on one charge.
IF you cannot take screenshot, please type in your 'display' usage time as shown in the screenshot below.
TO FIND OUT DISPLAY USAGE TIME: go to SETTINGS -> ABOUT TABLET -> BATTERY USE -> TAP 'DISPLAY' -> SHOULD SHOW ACTUAL DISPLAY TIME ON. meaning, it shows how long your display has been on since being off the charger.
The screenshot shown below is with wifi on, bluetooth off, gps on, brightness settings at ~40%, starting from 100% battery life)
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nice screenshot..
nobody experiencing bad battery life? pretty close to returning the xoom..
Sorry, cant show a pic due to not having my XOOM on me. But im getting ruffly about 6-7hrs with decent use. But that's what I expected. The "approx" numbers they give you on mobile devices are always over shot in my opinion.
The worst battery life I've gotten so far, when using it constantly for a given period of time (Web browsing, some Flash video, email, Twitter, some gaming) is around 8%/hour drain. That would equate to around 12 hours total, which I can't verify because I haven't used it for nearly that many hours straight.
I supposed if I played games solid hours on end I might burn the battery in 6 hours or so. Conversely, in my typical use, which is on and off browsing, email, Twitter, newsgroups, Pulse, CNN, light gaming, some video, I take the Xoom off charge at around 7:30am and by midnight when I plug it in again I have about 50% remaining.
wynand32 said:
I supposed if I played games solid hours on end I might burn the battery in 6 hours or so. Conversely, in my typical use, which is on and off browsing, email, Twitter, newsgroups, Pulse, CNN, light gaming, some video, I take the Xoom off charge at around 7:30am and by midnight when I plug it in again I have about 50% remaining.
Click to expand...
Click to collapse
wow, there is no way i'm getting that good of a battery life. i think i have to return my xoom and get a replacement...
so you're saying from 7:30 AM - midnight you're getting 17 hours of display time? that doesn't seem right..
I get 15 hours easy with moderate use and around 11 heavy heavy use.
Sent from my HTC Vision using Tapatalk
djunio said:
I get 15 hours easy with moderate use and around 11 heavy heavy use.
Click to expand...
Click to collapse
did you even read the original post?
i mean DISPLAY TIME USAGE
go to data usage -> CLICK ON 'DISPLAY' -> SHOULD SHOW ACTUAL DISPLAY TIME ON. meaning, it shows how long your display has been on since being off the charger.
if you can take screenshot of your actual DISPLAY USAGE that'd be great. the screenshot you have is NOT the same...
aohus said:
did you even read the original post?
i mean DISPLAY TIME USAGE
go to data usage -> CLICK ON 'DISPLAY' -> SHOULD SHOW ACTUAL DISPLAY TIME ON. meaning, it shows how long your display has been on since being off the charger.
if you can take screenshot of your actual DISPLAY USAGE that'd be great. the screenshot you have is NOT the same...
Click to expand...
Click to collapse
Sure didn't, I'll post my results tomorrow. Its currently at 97% with over 3 hrs of display usage. If your Xoom is only getting 5 I'd say your Xoom is defectve or something else other than the screen is draining your battery.
Sent from my Xoom using Tapatalk
I get great battery life, 65% remains
Maybe a better pic
I have good battery life when using the tablet continuously, but AWFUL battery life if its asleep.
I dont understand it - my drain while screen off / asleep is about 5% per 2 hours or even 5% per 1.5 hours...
and it usually shows android OS as taking up the usage while asleep.....
im at a loss of what to do.
I actually used it continuously for 9.7 hours of reading/wifi on time - so my battery seems fine.. but something is draining it while asleep...
I even tried to do a factory reset and wipe all my programs... and it still does it...
i dont know what to try now..
when i shut the tablet off - the battery does not drain - so it must be in the OS or something.
Any thoughts?
Flaunt77 said:
I have good battery life when using the tablet continuously, but AWFUL battery life if its asleep.
I dont understand it - my drain while screen off / asleep is about 5% per 2 hours or even 5% per 1.5 hours...
and it usually shows android OS as taking up the usage while asleep.....
im at a loss of what to do.
I actually used it continuously for 9.7 hours of reading/wifi on time - so my battery seems fine.. but something is draining it while asleep...
I even tried to do a factory reset and wipe all my programs... and it still does it...
i dont know what to try now..
when i shut the tablet off - the battery does not drain - so it must be in the OS or something.
Any thoughts?
Click to expand...
Click to collapse
Hmm I don't know what's the problem but I do know a very possible solution.
Root + SetCpu
xlGmanlx said:
Maybe a better pic
Click to expand...
Click to collapse
once again, i'm talking about actual 'display' usage
SETTINGS -> ABOUT TABLET -> BATTERY USE -> TAP 'DISPLAY'
as of yet, nobody has shown me their 'display usage' as of yet...
Display time on: 7h 23m 41s, and my battery is currently at 31%. I haven't charged it since Saturday. My guess is you have a lemon.
P.S. Sorry for the bad quality of the picture, I don't have my USB cable with me.
screen on time 7 hrs 02 minutes with 30% battery remaining
What else is using the battery? Just the display usage alone is useless. The display is only using 62 percent of the battery. Which is really not a high percentage. It looks like something else is using up a lot of juice in a shorter period of time.
Get the full version of system panel
albundy2010 said:
What else is using the battery? Just the display usage alone is useless. The display is only using 62 percent of the battery. Which is really not a high percentage. It looks like something else is using up a lot of juice in a shorter period of time.
Click to expand...
Click to collapse
The only time I got less than spectacular battery life was when the "minimalistic text" widget ran way with 6% of my battery. Since uninstalling that app, I have had no issues.
Is your brightness jacked up? I use it on auto.
Hello All,
I'm in need of advice if this is down to battery calibration or I have a faulty battery.
I got a replacement Nexus 4 3 days ago and I have been using it as normal. But I have noticed something strange going on with it.
I charged my phone to 100% and put my phone into airplane mode overnight, as I did with my Galaxy Nexus (It saves battery and I have a house phone for emergencies if somebody wants to contact me). I wake up the next morning around 9 hours later, I lose 1% battery which is normal, but when I use the phone for, say, 20 seconds, the battery instantly drains down to 95%. When I turn the screen off, and leave it until I get into work. I get into work 30 minutes later, turn the screen on and use it for a further 40-50 seconds, the battery then goes down to 92%, and the same thing goes throughout the day. I'm currently at 77% which only 12mins screen on time.
Would this be down to calibration? I haven't actually calibrated the battery and I rooted and flashed a custom ROM on the first day.
I had similar issue on my old, broken Nexus 4 so its not a coincidence.
Any help is appreciated.
-N
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
OverTheBelow said:
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
Click to expand...
Click to collapse
Thanks for this. I'll check it out.
Reminds me about HTC Sensation. It behaved so strangely with the battery readings. Jumped many percentages at once, or stayed at 100% for a while. Also after rebooting, the reading might have been quite different each reboot.
I truly, deeply, did NOT like it. It was horrible to keep track of the real juice level the battery had.
So I wonder if anyone else is seeing this behavior?
weird im getting 2 days usage with average use im really happy with the phone and battery
Fihlvein said:
Reminds me about HTC Sensation. It behaved so strangely with the battery readings. Jumped many percentages at once, or stayed at 100% for a while. Also after rebooting, the reading might have been quite different each reboot.
I truly, deeply, did NOT like it. It was horrible to keep track of the real juice level the battery had.
So I wonder if anyone else is seeing this behavior?
Click to expand...
Click to collapse
Same with me when I had a sensation. It would also randomly turn off.
Sent from my Nexus 7 using xda premium
Nitroz said:
Hello All,
I'm in need of advice if this is down to battery calibration or I have a faulty battery.
I got a replacement Nexus 4 3 days ago and I have been using it as normal. But I have noticed something strange going on with it.
I charged my phone to 100% and put my phone into airplane mode overnight, as I did with my Galaxy Nexus (It saves battery and I have a house phone for emergencies if somebody wants to contact me). I wake up the next morning around 9 hours later, I lose 1% battery which is normal, but when I use the phone for, say, 20 seconds, the battery instantly drains down to 95%. When I turn the screen off, and leave it until I get into work. I get into work 30 minutes later, turn the screen on and use it for a further 40-50 seconds, the battery then goes down to 92%, and the same thing goes throughout the day. I'm currently at 77% which only 12mins screen on time.
Would this be down to calibration? I haven't actually calibrated the battery and I rooted and flashed a custom ROM on the first day.
I had similar issue on my old, broken Nexus 4 so its not a coincidence.
Any help is appreciated.
-N
Click to expand...
Click to collapse
I just thought its normal, for the first couple cycles, and since I flash a rom quite often was hard to pinpoint any of my battery drain problems, eventually though I found that my battery drain issues, were from the CPU not switching back to the 384mhz slot properly, set my min cpu speed with voltage control and now my drain issues are fixed, and I dont have those haywire readings.
OverTheBelow said:
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
Click to expand...
Click to collapse
Calibrating the battery with that app does nothing. The reason you see the battery graph go up without charging after usage is because the graph is more of an "estimate". If you are using it extremely heavily for a long period of time it will give an "estimate" of where it is and then when you stop using it, it will realize it is no longer under load and appear to "recharge".
Sent from my Nexus 4 using Tapatalk 2
maniAK- said:
weird im getting 2 days usage with average use im really happy with the phone and battery
Click to expand...
Click to collapse
Is your phone in airplane mode?
Sent from my Nexus 4 using xda premium
Locksmith81 said:
Is your phone in airplane mode?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
haha nope only have it in 3G if ii used 2G and juicedefender i could probably get 2.5 days out of it then, all i did was 5 complete charges and discharges when i got the phone and only use wall charger not USB charge
How many hours do you end up getting out of it before it dies? And what settings do you get out of that?
I don't pay attention to my battery every few minutes, but look at what I get out of a whole day. Depending on usage, I get 2% to 8% drain per hour. On average, it's closer to 6%. Hope that helps.
The day I calibrated my battery (the second day after I bought the Nexus 4 last week):
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haha, took another half an hour after that of the phone just idling with screen on full brightness till it finally shut off.
OverTheBelow said:
The day I calibrated my battery (the second day after I bought the Nexus 4 last week):
haha, took another half an hour after that of the phone just idling with screen on full brightness till it finally shut off.
Click to expand...
Click to collapse
How do you get it down to 1%? Mine always shuts off when it's about 3% and doesn't let me keep it on.
Just power it back on after shutdown. I get quite about more juice out of it.
BTW, noticed that it uses far less power over the weekend, when at home and constantly on WiFi. I have a feeling the signal amplifier is not very efficient.
Sent from my Nexus 4 using xda app-developers app
I think our 2012 nexus 7 standby time is pretty bad..but i think it's the most case for many android devices. However, as we know the new nexus 7 2013 has smaller battery, but it's standby time is SIGNIFICANTLY longer. I heard over night, only about 2 percent drops, similar to iPhones iPads and even playbook when I had it. My 2012 nexus 7 drops 2 percent per hour, not per overnight.
What I'm wondering is that is this due to the snapdragon processor being more power efficient when idle? My nexus 4's standby time is incredible as well, but don't know if it's because of 4.3 update or not. I used to have Galaxy S2, which had a snapdragon S3 (the one before krait), and standby time on that was also horrible. Never got though a day, battery was always out at 3pm..
I do have some apps on my nexus 7, but I don't have too many either. I' not really an "app" guy. I have also tried Greenify, but it's pointless because I DO want to get some notifications from Email, Weather, etc. I don't have everything syncing that often.
I believe 2 percent per hour isn't really bad, and I don't think there is something wrong with my tab. But I really would love super long standby like the new nexus 7 2013. Will certain ROM in the developer section help? I believe I have Vanir 4.3 or something installed, and haven't changed for a while.
Also the nexus 7 2013 and nexus 4 with 4.3's super long standby is with WiFi ON. I'm wondering if they are due to SD s4 pro chip being well optimized with android 4.3 for battery efficiency or something.
Please reply!
Thanks.
Download an app named BetterBatteryStats. Start it and let it run for a whole battery cycle (charge it, unplug and then do what you usually do with your Nexus). Then you gotta check your Kernel WakeLocks (they are eating your battery when your screen is off). When you find out which ones are the problem you should post it here, on the forum and hopefully somebody will help you .
Basically saying: when you enter Android settings and here you check your batterry stats you want to have your awake bar fully covered by screen on bar (like this: http://img706.imageshack.us/img706/8633/131d.png).
Also disable 3g and wifi over night or find an app that will do it for you.
Here's a handy guide to improving battery life:
http://forum.xda-developers.com/showthread.php?t=1909996
Yeah....you have something draining your battery. I get like 2 percent drop over night on the original N7.
Read the like in my signature. Its in an S2 forum....but pretty much is the same for any device.
I can get 4 days on standby....barely touching it of course. 2 solid days on average with normal use.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Hmm..I am charging my tab right now. I'll try the methods suggested, and update.
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Above are the screenshots. I'm using gsam. Better battery stats app is a paid app, so I chose this.
Do you think, from the screen shot above, that Google services is draining my battery? I'm not sure if this is only from me unplugged this tab for about an hour, or for the entire 2 days me plugging and unplugging time to time.
Thanks in advance for your help.
Also to Sheo above, awake and screen on are definitely different . Does that mean my battery is draining?
Thanks. And I guess it wasn't 2 days. 1 day and 5 hours I guess, instead of 2 days I said in my previous post.
Every time you unplug your phone, gsam resets. So those stats will be off. Charge it fully, and let it go til its near dead. Like 10 percent. Then check out gsam. Cpuspy would be a good thing to get to....to see if its deep sleeping and for how long. Just reboot when fully charged, or after unplugging go into cpuspy and reset stats. So it will track your full drain.
Hit the drop down on the app screen in gsam. Check kernel wakelocks....times waking device and time held awake. I am not sure its Google. It only held your phone awake for 2 minutes.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
kj2112 said:
Every time you unplug your phone, gsam resets. So those stats will be off. Charge it fully, and let it go til its near dead. Like 10 percent. Then check out gsam. Cpuspy would be a good thing to get to....to see if its deep sleeping and for how long. Just reboot when fully charged, or after unplugging go into cpuspy and reset stats. So it will track your full drain.
Hit the drop down on the app screen in gsam. Check kernel wakelocks....times waking device and time held awake. I am not sure its Google. It only held your phone awake for 2 minutes.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Click to expand...
Click to collapse
Okay it's been several hours now after I unplugged and left it idle. I'm not really sure about the gsam results, so here are the screenshots.
Thanks for helping me.
Btw these 3 screenshots are from the kernel wake lock.
Thanks.
kj2112 said:
Yeah....you have something draining your battery. I get like 2 percent drop over night on the original N7.
Read the like in my signature. Its in an S2 forum....but pretty much is the same for any device.
I can get 4 days on standby....barely touching it of course. 2 solid days on average with normal use.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Click to expand...
Click to collapse
Me too, sometimes overnight draining is 0%.
sw6lee said:
Above are the screenshots. I'm using gsam. Better battery stats app is a paid app, so I chose this.
Do you think, from the screen shot above, that Google services is draining my battery? I'm not sure if this is only from me unplugged this tab for about an hour, or for the entire 2 days me plugging and unplugging time to time.
Thanks in advance for your help.
Click to expand...
Click to collapse
You can get better battery stats free here on xda, just in case you want to give it a try.
http://forum.xda-developers.com/showthread.php?t=1179809
Sent from my Nexus 7 using xda app-developers app
Hey guys I have no idea what happened to my tablet, but since yesterday, my tablet standby time is really good. Today, I unplugged 4 hours before, and right more, it still says 100% . Does gsam also save battery? When I had my honeycomb tablet back in the day, it was dropping only 2 percent per overnight and I haven't seen this on any of my other tabs after. But it's amazing to have this long standby time again. I was thinking short standby time was just one of the things that android was not good with. Now I'm happy thanks guys for your help!
I was hoping that flashing this ROM would solve the only problem I had with AOSP 5.1 which was bad battery life (around 5h SOT) compared to the most of other people (8-10h SOT) and sadly it didn't. I'm getting even less on CM13 while I see other people also with insane battery life at almost 10h SOT while I get less than half of that.
Can someone help me out in this matter?
Yesterday I was at 32% battery left, 2h 40min SOT.
I have LTE and mobile data always on, a geolocated weather widget (Chronus) refreshing every 60 min, ambient display off.
I have xposed installed with the following modules:
- Amplify
- Greenify (haven't selected any apps, only working on boost mode, not sure if it still works like this)
- YouTube AdAway
Potential battery affecting apps:
- AdAway
- AppSales
- Chronus
- Disa
- Facebook
- Instagram
- Forza
- Twitter
- WhatsApp
- XDA Labs
I'm using BetterBatteryStats to track out what's going::
on Kernel Wakelock:
- PowerManagerService.WakeLocks - 9%
- event0 - 5%
- event2 - 5%
- event3 - 5%
- event6 - 5%
- [timerfd] - 5%
- ipc00000165_FLP Service Cal - 4%
- qseecom_ws - 2%
- IPA_WS - 1%
- alarmtimer - 1%
- [timerfd] - 1%
From here down everything's at 0%.
on Partial Wakelocks everything's at 0%.
The CPU has spent most of the time on Deep Sleep (78% - 9h)
Today I uninstalled Greenify and Amplify, tweaked some settings on the Facebook app, removed my weather widget and change location not to use as much battery.
I'm now at 70% battery life remaining, 1h15min SOT, the phone has been on for 9h40min. The kernel wakelocks are pretty much the same as the ones of yesterday.
I'm sorry for the wall of text but at this point I'm really desperate cause I really want to be least a bit closer to the battery life most people are getting. Thank you for your patience.
Discharge your phone until it shuts down totally then make a full 100% charge without touching the phone . Also tell me exactly how much time it took (in minutes) and the charge rate of your charger. Once it's done make a battery calibration, saw somewhere in commits of cm13 that for some cases it could recognize battery only as 2000mah
aaz03 said:
Discharge your phone until it shuts down totally then make a full 100% charge without touching the phone . Also tell me exactly how much time it took (in minutes) and the charge rate of your charger. Once it's done make a battery calibration, saw somewhere in commits of cm13 that for some cases it could recognize battery only as 2000mah
Click to expand...
Click to collapse
No, it would kill the Battery Cell (Lithium): www.batteryuniversity.com
Sent from my Redmi Note 3 using XDA-Developers mobile app
aaz03 said:
Discharge your phone until it shuts down totally then make a full 100% charge without touching the phone . Also tell me exactly how much time it took (in minutes) and the charge rate of your charger. Once it's done make a battery calibration, saw somewhere in commits of cm13 that for some cases it could recognize battery only as 2000mah
Click to expand...
Click to collapse
It only displays as 2000mah, in reality battery capacity is 4000mah indeed
MOVZX said:
No, it would kill the Battery Cell (Lithium): www.batteryuniversity.com
Sent from my Redmi Note 3 using XDA-Developers mobile app
Click to expand...
Click to collapse
No it won't.
Its the best thing to do, everytime you upgrade your device to a new rom
MOVZX said:
No, it would kill the Battery Cell (Lithium): www.batteryuniversity.com
Sent from my Redmi Note 3 using XDA-Developers mobile app
Click to expand...
Click to collapse
Electric lesson today : yes it could kill a cell but only if this cell is already at the end of his timelife (after 2-3years maybe) or if the discharge level is too low , the ultimate limit of a lithium cell is around 2.6-2.7v , if you go under that the cell may not be able to recharge at all , it's true but when you are a mobile device builder you can't let this happen just because someone forgot to charge his phone , that's why you have a security margin of a few percent even when the mobile isn't able to boot. A phone usually goes from 2.9-3v to 4.2v range when fully charged. The "no big charge cycle" legend is only there because the battery have a better efficiency around his nominal voltage (3.7v) so your battery Will last longer (talking about number of cycles not battery time) when maintained around this voltage
aaz03 said:
Electric lesson today : yes it could kill a cell but only if this cell is already at the end of his timelife (after 2-3years maybe) or if the discharge level is too low , the ultimate limit of a lithium cell is around 2.6-2.7v , if you go under that the cell may not be able to recharge at all , it's true but when you are a mobile device builder you can't let this happen just because someone forgot to charge his phone , that's why you have a security margin of a few percent even when the mobile isn't able to boot. A phone usually goes from 2.9-3v to 4.2v range when fully charged. The "no big charge cycle" legend is only there because the battery have a better efficiency around his nominal voltage (3.7v) so your battery Will last longer (talking about number of cycles not battery time) when maintained around this voltage
Click to expand...
Click to collapse
I have done this procedure with my old nexus 4 several times and it's the original battery.
I got the same problem.
Now, I am running Temasek CM13, and I saw battery was going pretty bad...
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It is in Spanish, but is understable.
Any solution?
Regards!!
miguelang611 said:
I got the same problem.
Now, I am running Temasek CM13, and I saw battery was going pretty bad...
It is in Spanish, but is understable.
Any solution?
Regards!!
Click to expand...
Click to collapse
Report this screenshot in temasek and santo's build , it's just a fault in source where the device is supposed to have 2000mah only
H
Enviado desde mi Redmi Note 3 mediante Tapatalk
aaz03 said:
Electric lesson today : yes it could kill a cell but only if this cell is already at the end of his timelife (after 2-3years maybe) or if the discharge level is too low , the ultimate limit of a lithium cell is around 2.6-2.7v , if you go under that the cell may not be able to recharge at all , it's true but when you are a mobile device builder you can't let this happen just because someone forgot to charge his phone , that's why you have a security margin of a few percent even when the mobile isn't able to boot. A phone usually goes from 2.9-3v to 4.2v range when fully charged. The "no big charge cycle" legend is only there because the battery have a better efficiency around his nominal voltage (3.7v) so your battery Will last longer (talking about number of cycles not battery time) when maintained around this voltage
Click to expand...
Click to collapse
You truly underestimate modern electronics..
AFAIK, All Lithium-ion / Li-Po Batteries in smartphones and tablets and every other electronic gadget has an overcurrent protection and low voltage protection circuit.
And please dont act like a know it all..
To estimate battery wear I use 3C Battery Monitor and Accu Battery.
In 3C app, you can find an estimation in the "Calibration" tab and in AccuBattery in the Charging tab (Battery Capacity Estimate at the end of the screen):
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
To benchmark your battery:
- Drain your battery to the lowest percentage without the device turning itself off. 5% might sufficient
- For more accurate results: Close all opened apps less 3C and AccuBattery and put the phone in Flight mode
- Plug in the charger and verify that both apps are running and counting mAh.
- Charge the battery completely. S7 displays 100% while the battery is not fully charged, you can verify this on AccuBattery's charging screen (charge status section) and in the notification, they'll display that the battery is still charging and charge current (in mA) is positive.
- Topping off the battery can take up to 1 hour on S7.
- Try not to use the phone while running a benchmark charge, measuring the current in mA is more accurate while there's no / low CPU load and variance in power usage.
Send your data !
The date since you have your S7, if you know, the number of charge cycles and the estimated capacity in mAh.
In my case:
Exynos G930F since the 4th of November 2016
A total of 80 charge cycles usually between 20 and 75%
I have an estimated capacity around 2700 mAh according to 3C and 2840 mAh according to AccuBattery.
Nobody is interested in battery wear when it is non-removable in the S7?
patarchy said:
Nobody is interested in battery wear when it is non-removable in the S7?
Click to expand...
Click to collapse
Thank you for these tips, I will try it out tomorrow and post my results!
But is there a way to calibrate the battery in a better way then with apps like "Battery calibration"? I remember my first S7 (currently on my 2nd), It had amazing battery life unlike the one i have now which barely lasts trough a full day, and I dont have or use facebook/youtube etc.
mrd0pe said:
Thank you for these tips, I will try it out tomorrow and post my results!
But is there a way to calibrate the battery in a better way then with apps like "Battery calibration"? I remember my first S7 (currently on my 2nd), It had amazing battery life unlike the one i have now which barely lasts trough a full day, and I dont have or use facebook/youtube etc.
Click to expand...
Click to collapse
To calibrate the battery gauge:
· Samsung support instructs to let the phone discharging until it gets off. Wait 1 to 2 hours and charge the phone without turning it on.
When the led goes green let it plugged for an additional two hours.
- To avoid getting the phone going off too early because of reaching the 3400 mV shut-down threshold (on high CPU load for example), I suggest to put the phone in flight mode and do not using it when battery reached 4 or 3%. Then let the phone turn off during the night.
- Do not apply this procedure to much as discharging your battery below 15% and charging it above 80% impact negatively battery life span.
· Some people says that using the BatteryStatus --> quick start also calibrate the battery. But I have not been able to confirm this with Samsung neither on forums.
To access BatteryStatus dial *#0228# on the phone dialer.
· A last option is to let the phone drains below 5% and charge until full and let it plugged for one hour after the led changes to green. For better results close all opened apps, do not use the phone, let the screen off and do it in flight mode. Making the benchmark I explained in my first post calibrate the battery gauge battery.
In my opinion, Apps to calibrate your battery are useless as they do not have access to the charging circuit. In the best case these apps lead you in the steps detailed above in the worst case is a scam looking for your personal data and delivering ads.
mrd0pe said:
It had amazing battery life unlike the one i have now which barely lasts trough a full day, and I dont have or use facebook/youtube etc.
Click to expand...
Click to collapse
That being said, I do not think you have a battery calibration issue but an app that drain your battery.
Try GSAM Battery monitor to identify the app(s) that is draining your battery. Have a look to App usage.
I had a drain issue a few weeks ago. It was the samsung mail app that was draining my battery.
I have my S7 since 02/2016 - about one year.
Charged it from 0% to 100% until no more charge is pumped into the battery.
Accu Battery reports a capacity of 2289mAh from 3.000mAh
So about 31% wear. When the Device was new I also tested it and it reported slightly over 3000mAh.
I charge mostly wirelessly - normal wireless charging over night.
Fast wireless charging during the day at home or in my car.
Thank you for reporting your data!
maik005 said:
Charged it from 0% to 100% until no more charge is pumped into the battery.
Click to expand...
Click to collapse
Do you mean you always charge it from 0% to 100% or just for benchmarking purpose?
maik005 said:
Accu Battery reports a capacity of 2289mAh from 3.000mAh
So about 31% wear. When the Device was new I also tested it and it reported slightly over 3000mAh.
Click to expand...
Click to collapse
Why do you say 31% wear?
3000 - 2289 = 711
711 / 3000 = 23,7%
Aaah ! you caclutate it on 2289.
patarchy said:
Thank you for reporting your data!
Do you mean you always charge it from 0% to 100% or just for benchmarking purpose?
Why do you say 31% wear?
3000 - 2289 = 711
711 / 3000 = 23,7%
Aaah ! you caclutate it on 2289.
Click to expand...
Click to collapse
Just for benchmark of corse!
which calculation is the right one?
Awesome post, I was interested in my battery health a few weeks ago because by now I get barley 3 hours of screen on time (90% of the time I'm in airplane mode and have battery saver on). AccuBattery tells me I have 82% of my capacity left...
It makes sense thinking about how short the battery lasts now. I went from 7 hours sot in September to this :/
I will revert back to stock, maybe even flash the version from April to see if it helps, back then the battery was insane.
maik005 said:
Just for benchmark of corse!
which calculation is the right one?
Click to expand...
Click to collapse
You are looking for the decrease regarding the initial value. So it has to be calculated on the 3000 mha.
deereper said:
Awesome post, I was interested in my battery health a few weeks ago because by now I get barley 3 hours of screen on time (90% of the time I'm in airplane mode and have battery saver on). AccuBattery tells me I have 82% of my capacity left...
It makes sense thinking about how short the battery lasts now. I went from 7 hours sot in September to this :/
I will revert back to stock, maybe even flash the version from April to see if it helps, back then the battery was insane.
Click to expand...
Click to collapse
Thanks for your comment.
On AccuBattery, on the discharging tab, which percentage is your S7 in deep sleep? Mine is usually between 80 and 90%. If you have a lower percentage, you might have an app that held awake your phone.
Are you using GSAM battery monitor to identify if any app in particular drain your battery?
patarchy said:
Thanks for your comment.
On AccuBattery, on the discharging tab, which percentage is your S7 in deep sleep? Mine is usually between 80 and 90%. If you have a lower percentage, you might have an app that held awake your phone.
Are you using GSAM battery monitor to identify if any app in particular drain your battery?
Click to expand...
Click to collapse
It ist at 85%
Strangely I also noticed that I also have high standby drain. I just went from 100 to 90% with 8 minutes of screen on time. But in gsam battery I can't find anything strange other than the the high system usage but that was always like that.
deereper said:
It ist at 85%
Strangely I also noticed that I also have high standby drain. I just went from 100 to 90% with 8 minutes of screen on time. But in gsam battery I can't find anything strange other than the the high system usage but that was always like that.
Click to expand...
Click to collapse
I understand your are rooted. the only explanation I can see is the CPU scaling governor not set to interactive (you see this with Aida64 app)
patarchy said:
I understand your are rooted. the only explanation I can see is the CPU scaling governor not set to interactive (you see this with Aida64 app)
Click to expand...
Click to collapse
I'm using kernel adiutor, unfortunately everything is already in interactive mode. I should really try setting up the phone from scratch, not rooting or do anything for a while to see how it goes xD
I have the S7 for 4 months now. Build date is August 2016. After aprox 76 charges I now have 89% battery capacity left. I did not use quick charge at all. Usually charge it in the evening evwry second day and rarely I leave it charging over night.
Thank you for this post. I tested my SG7 and it seems its now about 2735mAh , i have had it since almost day 1
Im running superman rom
i just drained the battery and its charging now
ciprigeorgiu said:
I have the S7 for 4 months now. Build date is August 2016. After aprox 76 charges I now have 89% battery capacity left. I did not use quick charge at all. Usually charge it in the evening evwry second day and rarely I leave it charging over night.
Click to expand...
Click to collapse
Thank you!
I understand you usually charge it until full and discharge it until which %?
Studio1b said:
Thank you for this post. I tested my SG7 and it seems its now about 2735mAh , i have had it since almost day 1
Im running superman rom
i just drained the battery and its charging now
Click to expand...
Click to collapse
You mean you have it since march 2016 ?
How do yo use to charge / discharge it? From which % until which %?
Normal wire charge?
Thanks!
84% since day one. But i smell bull**** on these calculations. Sot is aproximately the same as when i bought the phone.
xtrustkillx said:
84% since day one. But i smell bull**** on these calculations. Sot is aproximately the same as when i bought the phone.
Click to expand...
Click to collapse
I am not so convinced by the numbers too but the reality unfortunately speaks for itself. I can barley get troughout a normal day nowadays...