I usually get between 10 and 12 days out of my battery between charges on a Samsung A20, however I have very little usage and few programs in use.
I'm rooted and use LOS with very few Google apps.
4 days on A20e with LineageOS GSI based on Android 11, no Google apps, always on battery saving mode and dark mode, Bluetooth and location off and I turn on internet only when I need it.
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I noticed that, after Google pushed out their update to include additional Account syncing options (App Data, People details, etc.) that the auto-sync is much more aggressive. Where I used to be able to get through an entire day, I now find myself at 20% battery after just 10 hours.
At first I thought this may be an issue with my Viper 3.2.7 + ElementalX 6.5 setup, so I did a clean flash and ran the stock kernel for a day, with no change. I flashed CleanROM 6.5 today and it's still exhibiting the same behavior.
To be more specific, "Google Services" shows up as >50% of the battery usage when I look in Settings>Power>Usage.
Anyone else been seeing this?
i've had way worse battery life after updated to a cm10.1 build from a week or two ago
and my google services is much higher up in my battery stats than normal, so you may be onto something
me too
Yes, it started for me yesterday. Android OS taking >50% battery, typical, but Google Services now taking >35% battery. Full battery drain in 12 hrs, normally can last 36 or more. I too noticed the new sync options, and disabled App Data and People details. Hopefully that will help, but I doubt it.
Running CM 9 on an ATT Samsung Galaxy S2 (US version, not skyrocket).
I disabled all new syncing options as well, with only Gmail, Calendar, and Contacts synced. With this configuration, my battery only lasts 12 hours on Clean Rom 6.5, whereas it used to last >20
There isn't really anything we can do from the user end. I guess we'll have to wait for some ROM that uses a less aggressive sync strategy?
Hello,
as you may or may not know fast dormancy is by now a mature technology implemented by all major networks worldwide. It involves 3G (HSPA) technology only and it allows the phone AND the network to keep the connection on using different levels of state (RRC) so that when you finish transferring data at high speed the state goes to a lower energy one or even idle using much less power, saving battery life significantly.
It has been explained by XDA website 2 years ago, you can also find more info on wikipedia.
What's the point of this topic? With my i9505 International I've always used Google Edition ROMs since the first edition was released. Battery life has always been fine while using 3G data on standby.
When I upgraded to KitKat Google Edition I noticed the battery would drain much, much quicker (when the screen is off mainly). I got used to it that I assumed it was how things worked until I ended up reading about people with much battery life on 3G and KitKat (but CM11 or AOSP) so I started investigating and trying different ROMs/configurations (I asked devs on their respective threads but I have been completely boycotted! ). At the end I concluded fast dormancy was not working (on the phone part) in anyway on KitKat ROMs made by Samsung.
How do you know if FD is active on the device?
- install apps to detect wakelocks like BetterBatteryStats (you don't need root)
- turn on 3G data and disable WiFi
- keep the screen off for about 1 minute (make sure you're not downloading anything)
- turn on the screen on check "kernel wakelocks". If you have "fast_dormancy" anywhere in the list then it's on otherwise it is not active
What ROMs did you test and how?
This is what I did: I made sure to have the same configuration and apps on every test, same location and signal strength.
I charged the phone to 100%, turn on 3G data, unplugged and left it idling with sync on for 4 hours. I noticed (via betterbatterystats logs) that with fast dormancy off I would lose about 2.5%/h, while with fast dormancy on the drop would be about 0.7%/h!!
And let's not talk about when you move around or drive, for instance with FD off with my usual drive to class I've always lost 3-4% in 15 minutes, I mean ALWAYS. With FD on the battery wouldn't move at all! That is a HUGE difference!
The ultimate test for me was a real life test. I went studying for two consecutive days at college in the same spot using the phone the same way (browsing, tapatalk, facebook messenger), with FD off I would come back home after using the screen for 1h30m at about 15% (mainly because I would lose power just on stand-by!) but FD on repeating the same steps the following day with FD on I went home at the same time and after using the screen for 2h20m I still had 45% of battery, WOW!
ROMs where FD works:
- 4.2.2, 4.3 TW
- 4.2.2., 4.3 GE (untouched and customized)
- CM10.2, CM11
- AOSP 4.4.2 ROMs
ROMs where FD doesn't work:
4.4.2 GE (untouched and customized)
4.4.2 TW (leak)
I used only one modem during these tests, the latest from the KITKAT leak.
What have you tried to force it?
Well I can tell you for sure that ro.ril.fast.dormancy.rule has no effect on TW/GE ROMs, I also tried to change the database as described here http://www.androidnz.net/2012/06/at-your-own-risk-how-to-disable-fast.html to set it to ON but you should know that FD on every ROM is on by default. I have no proof of this but with FD off even if your network seems to go to lower energy states on the network side (you can see all this using Samsung Service Mode), on the phone side the radio keeps using a lot of power as if it remains "active" thus draining battery like a b*tch
So has Samsung forgotten to include this feature? What do you think?
Also do you know where I can ask support for this to be fixed? Should I ask Google on the play store (even if I don't technically have a GPE phone!) or via Samsung website even if it's not sold on their site? Even worse KK TW is not even out yet officially.
Mod Edit
Please incorporate this in the KitKat thread HERE
Thank you
Thread closed
malybru
Forum Moderator
Hi folks,
I scoured through all the battery related discussions and wasn't able to find an issue similar to mine, so I hope it's okay to post a new thread on this topic. I have an AT&T (Snapdragon) Galaxy S7 with stock software and about a month and a half ago I started experiencing horrible battery life. I have been desperately trying to figure out what the issue is. At first I thought it was AT&T WiFi calling because it was forcing my WiFi and data connections to toggle back and forth and disabling that did help. However my battery life was still poor and I could never get more than about 10.5 hours of moderate use (see pictures below). Also the phone gets hot randomly (Above 95 Fahrenheit) even when doing minor tasks like browsing through Chrome. Since then I have made the following changes with no noticeable improvement:
Disabled advanced LTE services
Disabled Always on Display
Disabled WiFi and Bluetooth location scanning
Disabled nearby device scanning
Wiped cache multiple times
Temporarily disabled Bluetooth and WiFi to monitor the difference
Used Greenify Aggressive Dose
Disabled all diagnostic reporting
Uninstalled Oculus when that battery issue came up
Side note: I disabled a bunch of bloatware right when I got the phone, not through Package Disabler but through the standard Android disable method
I kept digging and found that my phone doesn't enter dose unless I use Greenify, and even then I don't notice a difference. I then decided to do a hard reset but no luck. Afterwards I used Safe Mode to see if any 3rd party apps were misbehaving, but again the drain was consistent both while idle and while using the phone. Today I installed Wakelock Detector Lite and found that PowerManagerService is keeping my phone from dosing, but from what I've read online it seems that info doesn't really point to a specific app, and it's hard to identify unless I root the phone which I don't want to do.
I am going crazy trying to figure out if this is a software/settings issue or if I should just replace the phone through AT&T and risk getting a defective refurb. Any help would be much appreciated.
Battery stats:
View attachment 3901345
View attachment 3901344
Wakelock Stats (taken on a different day):
View attachment 3901349
Many people have similar problems. One reason was the buggy oculus app (you might wanna disable that when it came pre installed, depending on your CSC).
However the main reason behind the high "android-system" usage is still unclear. Some people experience it, some dont. Some people have better battery results with the firmware from March.
Personally, I believe that it is firmware related. I tried the N7 rom port and did not have a problem at all.
You might wanna wait for the October update that will hit soon and see if this fixes anything.
I notice you have 'media server' showing in your battery stats. My wife had that showing too and also had terrible battery life. Her fix was disabling the auto streaming in her Facebook app which plays videos while you scroll through posts. Now she has great battery life!
I have the Facebook app disabled on my phone altogether. I've also used safe mode where 3rd party apps are disabled but the battery still drains at around 5% an hour while idle.
WiFi calling was draining one members battery, disabled that and everything returned to normal
*Detection* said:
WiFi calling was draining one members battery, disabled that and everything returned to normal
Click to expand...
Click to collapse
How?
iamnotkurtcobain said:
How?
Click to expand...
Click to collapse
https://www.verizonwireless.com/support/knowledge-base-203686/
I had that issue too but have since disabled WiFi calling
most likely a software issue. my version is G930FXXU1APEQ and i'm been getting 11 hour on batty with around 6- 7 hour of screen on.
Try disabling Google backup. It's a huge battery drainer
Sent from my SM-G930FD using Taptalk
Try manually updating Google play services for the lastest ver sion.
Hi,
Have the same Problem with my Galaxy S7.....Last Week, become an Little Update */- 20,8 MB
Now I have strong Accu consumption. ( Sorry Speake German
Test with Galaxy Note Edge, and Galaxy S7 .....both Smartphones have an 3000 m/Ah Accu. On Galaxy Edge have 178 own apps installed,
The Galaxy S7 - 3 Times Reset with Wipe Factory Reset and Wipe Cache, and from the Phone Settings.
https://www.dropbox.com/s/d7pvlnccr6y5dgc/Screenshot_2016-10-06-10-48-32%20NOTE%20EDGE.png?dl=0
https://www.dropbox.com/s/lile2f0uuitr3ol/Screenshot_2016-10-06-11-16-44%20NOTE%20EDGE.png?dl=0
https://www.dropbox.com/s/175imcgv3n9bugi/Screenshot_20161006-094012%20GALAXY%20S7.png?dl=0
https://www.dropbox.com/s/5rvkgubj95orhrn/Screenshot_20161006-094037%20GALAXY%20S7.png?dl=0
Nothing has helped so far so I decided to uninstall my apps in batches until battery life improves. I'll then slowly reinstall them one by one until I find the culprit. I'll report back with my findings. Thanks for all the suggestions.
Hi guys.
New here and need some help.
I recently updated my phone to 8.0 from 7.1.2 and was having terrible battery life.
I decided to downgrade to 7.1.2.
I was successfully able to do that but now when setting up my phone on startup and logging into my gmail account to copy data from, it wont show the last backup which was taken when my phone was on 8.0
Is it possible to fetch that backup and restore data from it?
Thanks
Any help please thanks
install 8.0 again, battery life is about the same, maybe a little better on android 8.0.
So its a user error that made your battery life worse, or some setting like bluettooth and wifi scanning turned on in location settings
CerB said:
install 8.0 again, battery life is about the same, maybe a little better on android 8.0.
So its a user error that made your battery life worse, or some setting like bluettooth and wifi scanning turned on in location settings
Click to expand...
Click to collapse
No i just used chrome to browse the internet and it sucked my battery like nothing. 10% in like 1 hour. Used to be much better with
Thanks.
I have seen this post many times before, but never got a solution to what I am looking for. My Galaxy S7 is about 2 years old now, and no problems with it, have just loved this phone. Recently, I started having a battery drain issue where Android System would use up large amounts of battery. I had this issue on Nougat, and I recently updated to Oreo and the issue isn't fixed. I have deeply looked across the internet on different ways to fix it, and I have tried everything. I have tried wiping cache partition, resetting app preferences, resetting settings, factory reset, clearing data and cache from Google services, turning off background usage for android system, installing Gsam and looking to see what's draining it there, turning off all services I'm not currently using (Location, NFC, Bluetooth, ETC), checking cell signal, turning off backup data for Samsung/Google, not leaving Wifi on in sleep, checking and ending unnecessary running services in developer options, disabling bloatware, and SO much more. Nothing has worked. I get around 3 hours Screen On Time, which I feel is unreasonable. Android system seems OK in the background, but It keeps at the same battery drain speed as the screen. (example: my screen has 13% battery drain, meaning that android system also claims 13%) sometimes it is a couple percent lower, and sometimes higher, but usually close to the same. My sister has a Galaxy S5, and when she uses down from a full charge the android system drain is 3% which is a lot different from what I get. My phone even has a bigger battery than hers, but her's has no problem with battery drain. This is the T-mobile S7, running Android Oreo. Please don't suggest power saving mode, or a lot of limiting options on the phone. What's the point of a SMART phone if I can't use all these neat very useful features? I would be better off with a flip phone if I was going for only calling and texts. Please help me find another solution that will fix my problem.
Thanks in advance!
I could not upload a screenshot, but my battery stats are as follows:
Android System: 14%
Screen: 13%
Android OS: 9%
Youtube: 5%
A game I like to play: 4%
Device Idle: 4%
Cell Standby: 4%
audioserver: 2%
[email protected] said:
I have seen this post many times before, but never got a solution to what I am looking for. My Galaxy S7 is about 2 years old now,.......
Click to expand...
Click to collapse
I don't have this device but, your best bet is to post this question within the following Q&A thread that's specific to your device and variants.
https://forum.xda-developers.com/showthread.php?t=3341138
Good Luck!
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I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.