Everyday i have a ton of people asking me and complaining about battery life.
So i figure i give you guys a small insight on how to properly read your battery stats.
when you are in the battery stas section of your phone.
settings > battery & data manager > battery usage = battery percentage
the screen looks something like this
4h 35m 10s
phone idle 36%
screen 25%
etc etc
when you are looking at this screen, the percentages do not resemble the amount of battery consume. but the amount of time that particular service/status its ran on battery
so no. your phone idle has not consume 68% of your battery
your phone is being idle 68% of the time its been on battery.
so no. your screen did not consume 25% of your battery
your screen is been on 25% of the time your phone is been on battery.
i hope this helps to clear up so of you guyses doubts and concerms about battery life.
so what app would we use to determine how much % of the battery is being used by certain things, like the screen?
I dont understand why its been so hard for people to understand this. Everyone that has been complaining about phone idle using battery has caused my brain to hurt.
Thanks for putting this out there SamCripp, I don't think many people understand this.
Are you sure sam. Numbers don't add up on my phone to support that.
I thought the percentages of each service is what percentage they have used of the total used battery.
Example:
Battery at 80% (20% used)
So if phone idle says 30% I thought that meant it has used 30% of that 20% or approximately 7% of the total battery.
I say this because for example my wifi shows being on the whole time I have been unplugged but its percentage is only 6%.
Sent from my MB860 using XDA Premium App
Anthonok said:
I dont understand why its been so hard for people to understand this. Everyone that has been complaining about phone idle using battery has caused my brain to hurt.
Click to expand...
Click to collapse
I started writing a rebuttal to this, with math and everything, but when I was doing the math, I realized that my battery is in fact working fine. If the phone was idle for four hours, the battery should be around 96 percent, and phone idle will have taken around 100% of the battery usage. Thank you for making me do the work and figure it out. Now, to make sure that this is indeed the case with my battery once I fully charge it and calibrate it.
Sent from my MB860 using XDA Premium App
helifixer said:
Are you sure sam. Numbers don't add up on my phone to support that.
I thought the percentages of each service is what percentage they have used of the total used battery.
Example:
Battery at 80% (20% used)
So if phone idle says 30% I thought that meant it has used 30% of that 20% or approximately 7% of the total battery.
I say this because for example my wifi shows being on the whole time I have been unplugged but its percentage is only 6%.
Sent from my MB860 using XDA Premium App
Click to expand...
Click to collapse
You don't question samcripp.
Sent from my MB860 using XDA App
I'm going to have to question this theory.
I charged my phone yesterday afternoon and left it off the charger overnight so it's been 16 hours since charged. Well, when I check my stats it says "Phone Idle" is 49% and "Display" is 31% but when I click on them the "Phone Idle" says it's been on for 14 hours and the "Display" has been on 2 hours.
So, according to your explanation the "Phone Idle", in theory, should read around 88% and my "Display" should be around 12%.
So to me, the stats are telling you how much of your battery has been consumed by those particular processes/components. Not how much time those processes/components have been on.
samcripp said:
when you are looking at this screen, the percentages do not resemble the amount of battery consume. but the amount of time that particular service/status its ran on battery
so no. your phone idle has not consume 68% of your battery
your phone is being idle 68% of the time its been on battery.
so no. your screen did not consume 25% of your battery
your screen is been on 25% of the time your phone is been on battery.
i hope this helps to clear up so of you guyses doubts and concerms about battery life.
Click to expand...
Click to collapse
I believe Sam is right.
My phone idle is at 54%, with 91% battery left. When I tap on phone idle, it says 2h 35m (when I woke up). For display, at 32%, it says 15m. Android OS is at 2%, and cell standby at 10%.
So I don't see how my phone idle is taking up 54% of my battery.
Deggy said:
You don't question samcripp.
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
If you don't question you don't learn you just become a parrot. I'm sure sam won't be offended.
Sent from my MB860 using XDA Premium App
no its obvious there is battery issues, with reporting correct percentage and all. but this is tutorial on how to read the battery stats section, not on how its correctcly reported
correctly reporting we can fix once theres source!
Sinful Animosity said:
I believe Sam is right.
My phone idle is at 54%, with 91% battery left. When I tap on phone idle, it says 2h 35m (when I woke up). For display, at 32%, it says 15m. Android OS is at 2%, and cell standby at 10%.
So I don't see how my phone idle is taking up 54% of my battery.
Click to expand...
Click to collapse
Lets see:
Sams way - IF phone was idle for 54% of the time since change that would mean the phone has been unplugged for (rough math just woke up) about 5hrs
Therefore for display if it was 32% it should have been on for 32% of 5hrs or about 96min. For 15min it would only be about 5%.
My theory: Display used up 32% of the total 9% of battery that has been used so far or about 3% of the total battery.
i welcome questions and critisims, this is a comunity, is a group effort. the only thing i wont accept is flame and trolling!
and you are right sir im not offended!
helifixer said:
If you don't question you don't learn you just become a parrot. I'm sure sam won't be offended.
Sent from my MB860 using XDA Premium App
Click to expand...
Click to collapse
helifixer said:
Lets see:
Sams way - IF phone was idle for 54% of the time since change that would mean the phone has been unplugged for (rough math just work up) about 5hrs
Therefore for display if it was 32% it should have been on for 32% of 5hrs or about 96min. For 15min it would only be about 5%.
My theory: Display used up 32% of the total 9% of battery that has been used so far or about 3% of the total battery.
Click to expand...
Click to collapse
leds, notifications and all general visual and vound and vibration would account for display. == theory as i dont have the source to confirm.
on programing INPUT is extremly generic. anything from mouse to monitor is in this category. so it only makes sense display would be the engineers way of categorizing!
Sinful Animosity said:
I believe Sam is right.
My phone idle is at 54%, with 91% battery left. When I tap on phone idle, it says 2h 35m (when I woke up). For display, at 32%, it says 15m. Android OS is at 2%, and cell standby at 10%.
So I don't see how my phone idle is taking up 54% of my battery.
Click to expand...
Click to collapse
It's not so hard to understand. The phone already drained 9% of your battery and in that there is 54% of drainage caused by idle, 32% caused by display and so on. You can't say that 2h 35m caused 54% and 15m caused 32%. It's obvious percentage and time aren't connected. I think some ****ty moto-app is running whet phone is idle and that cause short battery life. I had few android phones before and idle was never higher than 20-30%
Utilising the scientific method!
3 days ago i drain my battery clear battery stats charged up to 100% and spend the next days with out recharging once. each time i got to 24 hours i rebooted, so my battery stats would clear in the battery stats section.
my last battery stats
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FOR PEOPLE CURIOUS ON WHAT THEY LOOKED BEFORE THE BATTERY RESET ONLY AFTER 8H BEFORE THE EXPERIMENT TOOK PLACE
przez said:
It's not so hard to understand. The phone already drained 9% of your battery and in that there is 54% of drainage caused by idle, 32% caused by display and so on. You can't say that 2h 35m caused 54% and 15m caused 32%. It's obvious percentage and time aren't connected. I think some ****ty moto-app is running whet phone is idle and that cause short battery life. I had few android phones before and idle was never higher than 20-30%
Click to expand...
Click to collapse
No there is a correlation between percentage and time its all relative to the total battery used:
1 hr unplugged total battery at 90%
-Display on for 20min might be read something like 50% / 20min (50% of 10% of total battery used this far)
-Idle might be 50% / 40min
but if you then just idled the phone for 8 hours new readings would be
Total Battery 60%
Display 15% / but still 20min ( 15% of 40% of total battery used this far)
Idle 85% / 7h 40min (85% of total battery used this far)
-Display
If you add up the numbers they always come up to around 100% (+/- a few percent for rounding errors) if it was app on time then there would be over 100% as we have "multitasking phones" ie display is on but so is my XDA app and irc running in background.
as you can see from my pic above all those times are solid. i used my phone for about 4 hours yesterday, with the hear and there of opening stuff up we can added up to about 5hrs and a few minutes the rest of the time is sit, as i was at work and compiling cm! i do see your math checks. but run the experiment for yourself.
samcripp said:
as you can see from my pic above all those times are solid. i used my phone for about 4 hours yesterday, with the hear and there of opening stuff up we can added up to about 5hrs and a few minutes the rest of the time is sit, as i was at work and compiling cm! i do see your math checks. but run the experiment for yourself.
Click to expand...
Click to collapse
I must be a little slow this morning because I don't understand your experiment or what it has to do with "Reading" the stats. Your pictures don't show any times which is what we are talking about.
We can both agree that people get confused and thing that if there idle says 50% they think it has used 50% of there total battery which is not true.
So the question is simply - does the individual stat for say Display or phone idle represent either:
a) percentage of time since unplugged that app/service has been used/on for or
b) percentage of "total used battery up to that point"
Not sure how your experiment proves or disproves either of the above. Except that again as I said above the percentages add up to 100% +/- so I am not sure how that could be unless its b.
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.
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!
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..
Let's get the ball rolling on this one! Post your battery usage and screen on time
1 day, with 3.12 minutes of screen on time with 4% remaining. Sorry I don't have any screenshot to show.
I got close to 5 hrs. SOT on the first charge. Used the phone a lot that day all on 4G. 1 hour of phone calls over Bluetooth, 45 minutes navigation, updating and downloading apps and a lot of web surfing.
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Dismal Battery life
So, I'm averaging between 2 to 2.5 hours of SOT.
This is with WiFi on, BT off, location used periodically (like while booking an Uber), NFC off.
I have been using this phone for 3-4 days now and thought the battery life would improve but this is dismal.
Can anyone share some tips?
My brightness levels are at 50% and not on auto.
I'm new here so I can't post pictures/links
dpbg said:
So, I'm averaging between 2 to 2.5 hours of SOT.
This is with WiFi on, BT off, location used periodically (like while booking an Uber), NFC off.
I have been using this phone for 3-4 days now and thought the battery life would improve but this is dismal.
Can anyone share some tips?
My brightness levels are at 50% and not on auto.
I'm new here so I can't post pictures/links
Click to expand...
Click to collapse
I get more than that from my xa with a 2300mah battery and no stamina mode, I'm getting anywhere between 3.5-5hrs screen time depending on where I am and what I'm doing at the time brightness at 40%.
Have you turned off the WiFi and Bluetooth always scanning in the background even if they are both turned off go to settings, location and tap the three dots top right, then turn both sliders to the off position. Made a world of difference my xa battery life.
Sent from my Xperia XA using XDA Labs
Was on wifi the whole day
I've been using the phone about a week now. I am very satisfied with my battery life so far. Last night I flashed the UK firmware to access the Battery Care feature as well as the fingerprint sensor. We will see if my battery life changes post firmware flash, but it seemed to do fine today. I unplugged it at 7am this morning and its now 10pm and I am still at 50% battery. Every day I have been able to comfortably reach the end of the day with 1/3 or more battery life, typically over 40%. When I am not using my phone heavily I turn stamina mode on, then if I want to sit down and use it I'll just switch it off. The battery life is much nicer than my Galaxy S5, Xperia Z5, and I find it to be somewhat better than my Galaxy S7 as well.
Well apparently I won't be able to post my screen shots until I post 8 more times. So I'll just write out the stats I have.
Using GSAM battery monitor pro
Averages per complete charge:
Battery Life: 22 Hours 20m (7 hours 49min active)
Screen on: 4 Hours 31 minutes (max 4 hours 48 min )
and upon the time of posting this I was at 50% battery. The phone has been powered on for 14 hours and 18 minutes.
Phone active for 20 minutes
screen active for 3 hours
cell and wifi on all 14 hours
held awake for 1 hour and a half
Edit: I should also mention I run the Nova Prime launcher
I average between 3.5 hours and 5.5 hours SoT while there's 50% battery remaining.
It's mostly calls, calls forwarded feom my business phone, MyBoy, a lot of chrome usage and a bit of other stuff.
The best battery life in a Sony flagship phone.
Beats my previous Z1C, Z3C and Z5C, and it utterly destroys the LG G4.
wow! Everyone seems to be getting at least 3.5+ hours of SOT. wonder if I should give those guys at Sony a call and check with them!
Anyone experiencing huge battery drain from Android OS?
So I had this phone for 3 days now. 1st day was setting it all up which of course drained the battery faster than usual. 2nd day I wasn't getting any signal and realized I needed to set up the APN settings for T-Mobile so I couldn't really test the out the battery life under my normal usage. Today, I went from full to 75% in a matter of an hour and a half. This is not normal. My normal routine is starting up streaming music services such as Stitcher, Spotify, and a couple others and maybe 10 mins of browsing during my 35 min commute on the subway train. At times I get spotty coverage during the commute so I understand the phone is working harder than normal to get signal. But that 25% drain should not be normal. I was getting at most a 11% drain with my z3 and 15% drain with my note 7 under similar circumstances. I will give it a full week or two and hopefully things will settle down a bit. If not, this is a huge concern and I may have to return it.
djinn415 said:
So I had this phone for 3 days now. 1st day was setting it all up which of course drained the battery faster than usual. 2nd day I wasn't getting any signal and realized I needed to set up the APN settings for T-Mobile so I couldn't really test the out the battery life under my normal usage. Today, I went from full to 75% in a matter of an hour and a half. This is not normal. My normal routine is starting up streaming music services such as Stitcher, Spotify, and a couple others and maybe 10 mins of browsing during my 35 min commute on the subway train. At times I get spotty coverage during the commute so I understand the phone is working harder than normal to get signal. But that 25% drain should not be normal. I was getting at most a 11% drain with my z3 and 15% drain with my note 7 under similar circumstances. I will give it a full week or two and hopefully things will settle down a bit. If not, this is a huge concern and I may have to return it.
Click to expand...
Click to collapse
Give it a couple cycles and play around with the stamina mode settings. Lithium batteries generally won't output their full capacity until 5-10 charge and discharge cycles. That being said your battery life does sound somewhat short depending on what you have running in the background. I Use the memory booster application to monitor my RAM and clean it every so often which saves some battery life as well. But I would give it a couple cycles and see if you still experience a shorter than expected life
Screenshots taken at 15% remaining because that's when I have stamina mode set to kick in.
Today's usage was a fair bit of Google maps (screen on for about 3hours.) Using around ~75% of battery.
Plenty of YouTube via chromecast (screen on for 1hour)
For whatever reason battery stats are not showing me YouTube usage. When going into app Info you see 0% which is a lie. Because beyond he 1hour chromecast session I then used it for another 15minutes via the phone itself. So that stat is wrong because it certainly consumed battery.
100% unplugged at 5am. Screen off until I officially woke up at 8am. Still 100%. Proving the phone sleeps brilliantly.
Then the video attached taken at 1% illustrates the usage detailed above - giving a total ~12.5hours with quite intense usage.
My record SOT STAMINA automatically 25%
https://drive.google.com/open?id=0BxH0ZHP3DPmlSFBzR2dkbTZZbjQ
Syberyon said:
I average between 3.5 hours and 5.5 hours SoT while there's 50% battery remaining.
It's mostly calls, calls forwarded feom my business phone, MyBoy, a lot of chrome usage and a bit of other stuff.
The best battery life in a Sony flagship phone.
Beats my previous Z1C, Z3C and Z5C, and it utterly destroys the LG G4.
Click to expand...
Click to collapse
Well to be fair MyBoy is one of the most efficient apps you can run on a phone. My GS7 could hit 7h of screen on time on that, double what it can usually achieve doing just about anything else.
Not really happy with the xz battery... Being a 1080p display and sd820...i expected it to do lot better
This battery is weird. Most days I get around 5 Hours of SoT around 20% battery life left but yesterday I was at 50% battery life at 5h30m of SoT. Unfortunately I didnt screenshot it but it was draining super slowly I have no idea why, my usage didnt change, still used the same apps. It happens every once in a while.
Also does anyone else have severe drain with Android System? It shouldnt be surpassing my Display drain at 50% brightness. I would show screenshot but Im a new user.
Battery so far is great for me. This was with 15proc left, so could easily reach 7hours.
http://drive.google.com/file/d/0Bziwem4cI2oKMmhaUENnUERabWs/view
Wow most of you have really good battery life and SoT! I'm getting around 3-3.5 hr max sot over a 12-14 hr period... Anything I should be doing besides uninstalling some social apps (which I use but could exchange with web apps)
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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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...