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Samsung Care Ambassador

Re: Galaxy S9+ battery deterioration after Pie Update

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Hey  

Sorry to hear that but it's nice to know that you you understand. 

Yesterday device care battery management reached the end of the it's learning curve after the factory data reset. It now predicts the time remaining based on the last seven days of battery usage. Along with that the adaptive battery ai has also completed the initial learning process  It has now moved all the listed apps into the proper buckets. While in the learning process almost all of them were in the active, working set or frequent buckets. Now most have been placed in the rare bucket. Some are active and one or two in working set like gallery  camera, my files, internet and some are exempt. They are not optimized. 

I was hoping this would improve the battery life. Maybe it has while while the phone is active I don't know yet  

On the other side I still see the exact same issue as you  Yesterday I put the phone asleep for eleven hours and fifty-three minutes  I woke it up and had 79% battery level. Cell Standby and Device idle used 5%.Google Services and Samsung Push used 0.5%.I can see the graph drops all night long  

I'm not sure if you noticed the edit in my first  All I did was charge to a 100% and put in safe mode overnight  It had no positive effect at all  

If I find a solution I'll post it here. Otherwise as you said the four of them really should take a look at this issue and help us out  

Thanks for the post  

 

 

 

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Asteroid

Re: Galaxy S9+ battery deterioration after Pie Update

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Same here! (S9+) Used to go ALL day & connect charger at bedtime, NOW my battery up & DIES around 3PM, around 6 hours early, & it NEVER up & quit before. NOT HAPPY. There are NO redeeming features of the 'update' worth this failure. Note that my wife & son have the same phone, did the update, & neither have noted any change. 

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Asteroid

Re: Galaxy S9+ battery deterioration after Pie Update

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Last night I cleared the cache (restarted in service mode), then went thru EVERY app, disabling some I don't think are needed, etc. Pleased to say battery appears to be back to great again. Used only around 5% per hour of screen on browsing, then used only 1% overnight with screen off. Now I get to see how usable it is during the day. Fingers crossed. 

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Cosmic Ray

Re: Galaxy S9+ battery deterioration after Pie Update

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Wow, that is promising. A few questions for you:  1) How do you restart it in 'service' mode? I'd like to give this a try.  2) Is it safe to disable google, and, especially, the 'Samsung Experience' which, for me at least, uses over 50% of the battery life?  It is disheartening that it seems to be impossible to see the apps that running in the background.  I have had to go into the Apps folder and force stop several apps.  Still at night my battery drops 25% with everything (that I know of) off.

3) Is there an easy way to see what is running in the background?

Thanks again for your input.  Let us know how your day went with it.  

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Samsung Care Ambassador

Re: Galaxy S9+ battery deterioration after Pie Update

JUMP TO SOLUTION

I did another Factory data reset yesterday. Set Everything up just as I always do. No Auto restore or manual restore. One by one. 

Charged to 100% and let it sleep for eight hours and seventeen minutes. Battery level was at 84%. No third party apps installed. Same two apps listed. Samsung push shows active for 4hrs and Google services shows 4hrs running in the background. They might not be using a lot of Battery but they might be keeping the phone awake I don't really know. 

I wiped the system cache partition in the recovery console this morning I have done this before but it doesn't resolve the issue on my phone. Power off the phone. Press and hold the volume up key the Bixby key and the power key at the same time. Wait for the android logo to popup and release the keys. You should be in the recovery console now. Use the volume down key to move down the menu to the entry wipe system cache partition. Once that is highlighted press the power key then press the volume down key again to select yes. Press the power key and it will wipe the system cache partition and return you to a highlighted item labeled restart the system. Press the power key and it will boot up. 

The other things you mentioned Samsung experience never uses that much Battery on my galaxy S9 it's more like 8 or 9 % on the day. It varies. Since running with no third party apps doesn't improve the Battery usage I installed my usual apps. Nova launcher prime, kLWP, KWGT, Power Amp, Color note, Swiftkey, and a few others. Nova Launcher is set as the default home and KLWP runs as an overlay on top of that. With these apps running I have always been able to put the phone to sleep for 10 to 11 hrs and wake it up at 95% Battery level. Be careful in the recovery console make sure your on the wipe cache partition. 

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Cosmic Ray

Re: Galaxy S9+ battery deterioration after Pie Update

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Thanks for that explanation of how to wipe the system cache partition.  My  battery life drain is really ticking me off.  I sure hope someone is listening to all our complaints.

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Samsung Care Ambassador

Re: Galaxy S9+ battery deterioration after Pie Update

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@mlleelise2 wrote:

I sure hope someone is listening to all our complaints.


Concerns and complaints about the one UI and minor bugs are being listened to. Currently the whole community board is making a big change that you will see during the release of the new Galaxy S10 on March 8th. There will definitely be a section where we can condense all the issues into one thread so research and development can work on those issues


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Astronaut

Re: Galaxy S9+ battery deterioration after Pie Update

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@SJohnson wrote:

@mlleelise2 wrote:

I sure hope someone is listening to all our complaints.


Concerns and complaints about the one UI and minor bugs are being listened to. Currently the whole community board is making a big change that you will see during the release of the new Galaxy S10 on March 8th. There will definitely be a section where we can condense all the issues into one thread so research and development can work on those issues


So you are messing up my phone with an unwanted update for the benefit of some new phone?  Are you then expecting me to buy this new phone?  Unbelievable. 

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Samsung Care Ambassador

Re: Galaxy S9+ battery deterioration after Pie Update

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Yes I hope they are looking into this too. I'm glad you posted about this. I had the Google App Disabled, turned off background data usage, removed its permissions, put it to sleep but didn't see any substantial battery improvement. I did another factory data reset yesterday. That makes 3 for me  This time around I set up just as normally would and only have two apps added to the sleep catigory. T-mobile app for causing an unrelated issue and the Google app because I don't use the assistant. I've paused all the data collection services. I'm going to leave everything the way it is and hope they can find what's causing this.

See you later, 

CLF 

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Asteroid

Re: Galaxy S9+ battery deterioration after Pie Update

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So, days after clearing the cache partition, going thru ALL apps & disabling some & setting battery saving options on all, my S9+ is back to great battery life again. But still up & quits with NO notification that battery is getting low, if I'm listening to TV shows with phone in my pocket. So I need to find a way of sounding a notification when battery level becomes critical. Other than that, great phone. Just bought a USB hub to see what its like to use the S9+ as a laptop, just looking at 4K monitors now... 

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