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Can someone explain to me how, with the phone turned off (just the phone option in settings, almost airplane mode, but still using WiFi) and screen brightness set to lowest possible,
am I getting a 21% battery drain in 1 hour????? I just fully recharged this joker, and within 8 minutes it went to 99%, soft resetted, 95% at startup...soft resetted again, 90% at startup...within 15 minutes I had dropped 10%!!!
2 nights ago, I left the phone on standby at 65% overnight...woke up to a 2% battery charge!
I looked at task manager and there was nothing running...okay, just typing this and down to 77....I'll soft reset and update the %.....11:05pm...
okay...it's 11:07 and upon startup, phone batt. % was at 70%...I lost 7% just by restarting...
currently using Xannytech 1.7c ROM (yes, I need to change my sig...)
Any ideas?
i am no tech guy but i'll go with saying maybe your battery is dying or i donno have you tried getting a new one ? my battery reading is highly consistent and they sure as hell dont fall down as much as yours does in short time periods. mine after a full discharge charge cycle holds on every percentage like a m o and stays with me for two days.
performed a hard reset?
SR will only really fix lockups/unresponsiveness (like the reset button on your PC)
HR is effectively a full reinstall from scratch. will (or should) cure power management issues like you seem to be having.
ofcource, it could be the battery. A HR is free so i'd start there...
I treated my phone like a baby for its first three months, and the first day I left it unattended when I went to the loo, my friend spilled water all over it...
Now the (range of new) batteries I buy for it last only 7 hours tops before hitting 0%. So maybe, like mine, there's something in your phone that is rapidly draining your battery? (Still not been able to solve my problem six months down the line )
Morning...left the phone off overnight and woke up at 69%... Never spilled anything on it...maybe flashing to stock rom may help?Just reading your posts and I'm down to 67%. WITH PHONE TURNED OFF AND LIGHTING AT MINIMUM. Maybe flashing to stock may help? 66%
11 am...well, ended trying out a reflash of Xanny 1.7c...restores ALL programs through Sashimi. Went to do some grocery shopping (yes ladies, I cook too!), had phone on, playing music through headphones for about an hour and battery went down 5%...an improvement...will update if anything else changes
Ways your phone uses power
My phone got moist when I was running in the rain, and the power button (on the top of the phone) seems to be permanently pushed in. It looks ok and I can push it, but the phone doesn't notice. The result is that my phone is constantly draining the battery and I can only get about 4 hours out of a full charge.
Also note that some ROMs are configured to download data for multiple reasons/applications, at regular intervals. These include:
- weather updates
- My Location updates
- Twitter feeds
- email checks
- AGPS updates
- GPS updates
- updating phone's clock from Internet
- MyPhone synchronisation
- PIM Backup scheduled backups
Then there are numerous settings that may be set to run all the time:
- Infrared ("Beam" settings)
- Wifi, especially Wifi power mode (Performance vs. Best Battery)
- wifi router
- Bluetooth
- Vibrate (any time the phone vibrates, a small electric motor spins)
- enabling auto-dimming features such as auto screen brightness control
- Smart features that use the phone's light or 'motion' sensor e.g. Mute ring when phone placed face down or make phone ring louder if placed in your pocket
And there are settings that have a more pronounced impact on battery:
- wifi in a weak signal environment (more power is used to boost signal)
- wifi encryption type (none vs. WEP vs. WPA) (WPA uses more CPU than none)
- screen brightness
- volume
- screen dimming and blanking timeouts
I'm sure there's more, but these are ones off the top of my head. Some ROMs have some of these features enabled, some features are enabled by you when initially configuring after a flash. If you want to keep power consumption low, you need to check or consider all of these and make decisions that trade functionality for battery life.
And of course, your battery could simply be poor, wearing out, faulty, or low quality.
I had this problem of noticing my phone is turned off at random times (usually once every 2-3 days). I would pull out to use my phone, and its off. I tried calling my phone to see if maybe it was just stuck in sleep, but it went to voice mail. This is very annoying because i cannot rely on my device to be on when it should be (ie- for an alarm) The only way to get it back on was to either re-install battery or hold down power for about 10 seconds. This is my 3rd SGS and it happened on the 1st one and the 3rd (only had 2nd one for a day).
I just realized today (after the 6th time it happened in 12 days), that it only happens to me at places where i have no signal. It happened at work 3 times (where i get no reception), and once in the forest where i was bikeriding. I was in an area that showed no signal, and shortly after the phone was off. (it doesn't make any shutdown noise or anything, I just realize sometimes the phone has randomly turned itself off.
Could reception have something to do with this? Now that I think about it, the 1st phone i had also turned itself off at work....never at home. Will 2.2 fix this problem? Any advice would be greatly appreciated.
check your battery
did you flash any ROMs ?
Were you using SetCPU at all?
SetCPU mischief
My galaxy s was having to be shut down and having to have the battery removed to turn on again in all sorts of situations and I blamed all sorts of causes but in the end it came down to various clock speed issues. Now I'm running a minimum of 200
Something very curious has happened the last week or so.
The Wifi stays on, even when the phone is in sleep mode. It is evident when I unlock, the wifi symbol on the status bar doesn't bleep (reconnecting), but stays solid (connected). Of course that could be an operating system displaying error, but it's not; functionality is there, wifi stays on, device connected to the internet. And I'm not talking about the short amount of time that the wifi stays on after locking the phone. I'm talking I'm receiving notification etc as if I was using data.
I noticed it when, after waking up in the morning, I realised a massive battery drop (from 65% to 27%) overnight, although I keep my phone on airplane mode at nights.
As I haven't recently used any mods, regedits etc, and I haven't updated or flashed any rom (btw I'm on debranded stock 8107, with KK2), I can attribute this weird but very interesting behaviour to 2 possible things:
a. I installed some app, possibly homebrew, that somehow (even the dev didn't know about that) keeps running keeping wifi awake under lockscreen
b. Maybe it's because I'm on Airplane mode. I kept on being on Airplane mode from the moment I noticed it (as I have input my SIM to another phone). I should note though that there is a sim in the phone, I'm just on Airplane mode. Is that a known feature? Wifi stayin on under lockscreen on Airplane mode? I don't think so, as I would have noticed all that time (I keep my phone on that mode a lot).
That behaviour has persisted after soft-resets (reboots) and battery charges. The only hardware change I made the last week was using a non OEM replacement battery (the ones that reboot the phone when connected to the charger). But I'm using the original battery.
I should note it consumes about 4% of battery life for every hour, quite viable.
thats weird, but to some ppl, like me, i'd be happy if this happens, would love wifi staying on in sleep mode.
but, the opposite happens with mostly everyone
Even more curious thing that I found out today. When the phone is SWITCHED OFF, and wifi was on before switching the phone off, I have battery drop (almost the same as if being switched on with wifi on, around 3-4% per hour, in my instance from 43% went to 11% when I switched the phone on).
I don't know if the (original) battery has been messed up, so the battery index is not reliable (the reason I bought replacements was that in a span of 1 month, I was not treating it right, a lot of charging, heavy operation simultaneously, resulting in excess battery heating etc), or for some reason the use of the fake battery messed up the software part (both battery metering and WiFi stayin on)
I'll do so more testing and I'll report. Has anyone tried to go to Airplane mode and switch on Wifi, to check if it stays on under lockscreen?
It stopped today... weird!
... And it happened again, this time I think it might have been triggered by Audible, I might make a video as a proof.
EDIT: I was making that video, and realized on cam that it stopped happenning, and then I realized I had flashed beforehand the KK4 firmware. What a douche! If it happens I'll try to capture it on camera
When the data connection is OFF (like when you activate airplane mode) wifi remains connected even when you lock the phone.
d.a.v.o.r said:
When the data connection is OFF (like when you activate airplane mode) wifi remains connected even when you lock the phone.
Click to expand...
Click to collapse
No that doesn't normally happens, unless you have an app running under lockscreen and using WiFi (like a music streaming app)
No Bluetooth, No Location - Yes WiFi, LTE 100% signal coverage, no downtime, overall low brightness around 25-40% I can't seem to get past a day of regular use with 2 hours and half average screen time. Using latest OTA.
I've turned off the always-on screen, several bloatware that came preinstalled, including Facebook and Whatsapp.
The first on the battery usage is always Android System followed by Cell Standby then Android OS (again???) and then Screen. Also the voice call seems to use some great amount of battery. Naming might be different since my Android is in another language.
Have turned on energy saving for most apps that runs on background. Doesn't help much since I don't have many apps that runs on background. Imagine if I did! My day ends with about 20~27% battery left, I just turned off fast charging to see if it helps anything. My Xperia Z3 with Whatsapp and a great deal of apps installed would end the day with over 50~65% with Stamina Mode. I know the screen is smaller but so is the battery.
So I thought it would get better with time but it didn't, it's the S7 Edge Exynos Single SIM, unbranded with the official Samsung rom so I could get the latest updates or I would be stuck with no updates at all since Frebuary, since my carrier usually only releases major OTAs such Android N and skips all the minor updates.
Yes I did a factory reset already hoping for the better, maybe I got a defective Galaxy S7? I'd hate to have my phone fixed and the battery changed, it wont be the same again unless they give me a new one which is unlikely.
Why is Android System and Android OS draining so much battery? Are there any tools to debug this and trace which processes are using CPU time? Or could this be due a faulty battery?
Settings, Applications, Google. Disable all the services that will cause wakelocks such as all security options. This is something 99% of folks overlook or forget. Post a screenshot of your battery stats
http://forum.xda-developers.com/showthread.php?t=1827676
Only settings marked above are "Allow remote lock and erase"
Here is an average day with:
**Few moments connected to my laptop transferring pictures from yesterday - so incidentally it took some charge on the way.
1 hour 29 minutes voice call, 3G/LTE signal is excelent, VoLTE not used, WiFi on occasionaly, Location off, Bluetooth off.
1 hour 12 minutes running Fallout Shelter with power saving on, 30 fps low resolution mode, that's the CPU time at least.
2hour 28 minutes screen time with very dim brightness​
Power saving ON all apps where available, I have absolutely nothing installed but a couple of games, Teamviewer and Microsoft Remote Desktop.
That left me with 49% battery. Not sure how great the results are considering the brightness was very low.
Since the image took the whole page, here are the links instead lol.
Screenshot1 | Screenshot2
Dont quote me on this but I believe the Android System drain issue is a byproduct of the latest Samsung firmware update...
Someone more in the know could correct me or elaborate more
null
There is a thread on battery life here
http://forum.xda-developers.com/s7-edge/how-to/post-battery-life-t3321547
you might find some help/answers in there
Regards
Sawdoctor
Just some heads up, in offline mode my phone went a full day with a 6% drop, half hour screen time and some minor gaming, when I turned the phone radio back on around 20:00 when it was 10:00AM it was down to 15% battery, solely on standby. No bluetooth No location - Yes Wireless Yes LTE
Was having trouble with both issues, pulled battery with phone on, waited a minute, put battery back in, both problems fixed!
isnt this bad for the phone? Im having horrible battery life so I'll try anything but just wanna make sure
zorian said:
isnt this bad for the phone? Im having horrible battery life so I'll try anything but just wanna make sure
Click to expand...
Click to collapse
You wouldn't want do it if on a regular basis but you can try turning phone off, pulling battery out, putting it back in after a minute and if that doesn't work, try my method.
I would wait until the battery is super low and then reset network settings under the reset menu. Power down, pull battery and sim wait 30 sec to a minute and replace everything. Then plug in the phone first and then reboot. Let it charge completely and for about 20 minutes more after it reaches 100. If you do a lot of rebooting I have found the phone has issues. I only reboot with the phone plugged in, otherwise it drops 2% every reboot..
Be careful, I did that with a ZTE Zmax 2 once (75% charged battery) and it sent a phone into a bootloop. The only means of fixing it was that I luckily had a 2nd Zmax2 laying around and used its battery on the bootlooped phone which remedied the problem. Both batteries work fine , I just swapped them between the two phones.
zorian said:
isnt this bad for the phone? Im having horrible battery life so I'll try anything but just wanna make sure
Click to expand...
Click to collapse
I used to worry about this too. This is my first LG product and it MAY be different but at the Sprint store the first thing they would normally do is pull the nattery to look at the ESN. They never bothered to power it doen forst so I asked a couple times and was told it will mot hurt anything. I had Samsung products for uears and have done battery pulls at all levels of charge and for many reasons, but I never had a problem as long as the battery had enough juice left to boot the phone. If not I had to charge it, LoL.
Just thought I would share, I personally wouldn't worry.
I know on my old Nexus 6 pulling the battery with phone on was only an issue with fsync disabled using a custom kernel. I think most phones have built in protection to stop this from damaging the file system.
so a battery pull is your fix? lol some ppl should be hard resetting every so often regardlessi reboot at least once a day
hi
my v20 phone battery draining was about 1% per hour before (about 7% totally ) and recently increased to 2% during sleeping time overnight. (draining 15% overnight in sleeping state)
it seems that during day either performance off battery is decreased.(about 5h with wifi and screen on usage)
Fast charging while second screen is On , is slower than when it is off therefore when second screen is Off , fast charging goes better . exactly , first 30 mins fast charging makes about 40% battery charge(instead of 50%) and after 60 min leads to 85% and full charging taking place after about 100 min instead of 80 mins.
another important thing is that sometimes shades have been seen on the LCD that many users have complained about it.
phone information is :
Android security patch level: September 1, 2017
BASEBAND : MPSS.TH.2.0.1.c3-00045-M8996FAAAANAZM-1
KERNEL : 3.18.31
BUILD NUMBER : NRD90M
SOFTWARE VERSION : V10g-AME-XX
MODEL NUMBER : LG-H990ds
my actions are as follows :
phone is factory reseted. No third party apps is installed. [especially social media apps.]
battery calibration steps for not rooted phones is taken place.(turning off the phone and charging several times repeatedly).
testing battery drain in safe mode in done and didn't change results
turn off location services and location scanning for WiFi and Bluetooth scanning
turn off WiFi being On during screen is Off.
turn off auto sync, NFC, GPS etc.
not using auto brightness.
not using comfort view .
turn off location services and location scanning for WiFi and Bluetooth scanning
second screen is off during test overnight. (either with second screen is ON with faced down to lower brightness in other day test )
phone is in Air Plane Mode and all data services is off.
system apps like Google services and Play and Assistance is limited by permissions.
following are some advanced battery drain overnight figures of my phone for more analyzing.
any help with this issue is appreciated.
While I don't get extremely bad battery drain. The few times I've noticed it going down a bit faster than normal have had Android system at the top of the list or at least 2nd in place. A reboot usually fixes it for a while. This has happened in every ROM I've tried. Also I swear that stupid Wi-Fi scanning when WiFi is off option in locations settings turns itself on when it feels like it. I rarely turn my location on and I've checked a few times and that feature is on for whatever reason
Power down.
Pull battery.
Hold power button for one minute to discharge any juice that may be on the motherboard.
Let phone sit for 30 minutes.
Put battery back in.
Power up.
The motherboard and battery should now be re-calibrated. If you still have problems, try a new battery.