New tests show nougat 7 has worse battery life by 10% or more - Sprint Samsung Galaxy S7 Edge Guides, News, & Disc

Just wanted to share before you take the update. im still on OG PB5 (the original rom) and i get 2 and a half days battery life easy.
seems with every update i hear bad news so i never updated the rom. heres the latest test news and it isnt good
http://www.phonearena.com/news/Bad-...-Edge-after-Android-7.0-Nougat-update_id90859

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Latest Software still causing battery drain?

I have read on various forums that the latest software update has been causing problematic battery drain on the M8 and more often the Verizon version. I briefly had one about a month ago but had to return it due to some contract issues. Now I am looking to get another as I really liked it. I did however notice that the battery did drain pretty fast when I had mine. It had the latest 4.4.2 software on it. If I root it, can I install an older ROM and have the great battery life return? Are there any tips on what was causing the issue? I see AT&T actually pulled the Kitkat update due to battery issues several months ago.
Thanks for the info,
Rob
No battery drain on my device. I'm on all stock Verizon and I did a factory reset after the 4.4.4 update. Battery life is excellent and I get through a 24 hr work shift with about 20 percent battery left, about 3 hrs SOT. I'm sure you can get an older ROM version by asking in the thread of the ROM you choose if it isn't available in the OP. Many fine folks here keep old copies. Good luck buddy!
bjoostema said:
No battery drain on my device. I'm on all stock Verizon and I did a factory reset after the 4.4.4 update. Battery life is excellent and I get through a 24 hr work shift with about 20 percent battery left, about 3 hrs SOT. I'm sure you can get an older ROM version by asking in the thread of the ROM you choose if it isn't available in the OP. Many fine folks here keep old copies. Good luck buddy!
Click to expand...
Click to collapse
Thanks I appreciate the reply.
The oldest ROM it originally came with is 4.4.2 so I don't know how much that would help your case. Maybe the newest 4.4.4 can help if you still have problems on 4.4.2 on your new phone (if it isn't 4.4.4 already)
I've had the phone since release date and never had a battery drain issue. The battery life was great at launch and has gotten a bit better with firmware releases.
Before I had the M8 I had a Gnex. On that Gnex android 4.4.4 would cause the phone to get very warm and increased battery drain. It doesn't surprise me that it does it on the M8 as well.
I didn't see any battery drain on 4.4.2, 4.4.3, or 4.4.4.
Pfft with all the ROMs out and kernels to help who needs battery drain.
HTC One M8
After the update, my battery life dropped by an honest 50%.
I dont use my phone much and used to get 6 days on a charge, now I only get 3.
I realize that's more than most and I should not complain, but still.
I also had to reset my phone due to problems with pictures in my previously recieved texts not opening.
The reset obviously did not help my battery problem.
Cam
6 days per charge? Haha what?
theclash150 said:
6 days per charge? Haha what?
Click to expand...
Click to collapse
It's true, I'm older & only use a phone to make calls, & a few texts.
No social media stuff or anything like that, all Forum stuff is done on a tablet or computer.

Battery Life Terrible Suddenly

Hey guys, quick question. All the sudden I'd say over the last month or so my battery life has been horrible. I used to go a day and a half roughly with normal use until I had 20% or less battery life. All the sudden now with no changes made to the phone (no new apps, ROM, etc.) the battery life is terrible. I am lucky to get 16 hours with the same usage before the battery is 20% or less. The only change was that I bought a quick charge 2.0 charger (this one: http://www.amazon.com/gp/product/B00QTJZ3D0?psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00 ). I'd say I used this charger for about 3-4 weeks until the battery life was noticeably bad. Is it possible that this charger has actually damaged my battery and if so I am assuming it is irreversible since it is a non-removable battery? Thanks.
I have also noticed this.. but since I hadn't left it on stock ROM but for a day or so.. I cannot say that it is the new firmware or the ROM I'm using.. I have also seen a LOT of posting about this issue.. LP 5.x.x has a few bugs that are pretty bad headaches to deal with.... hopefully fixes come out for these issues... mainly (in my case anyway) battery life and data connection speeds
OdinValknir said:
I have also noticed this.. but since I hadn't left it on stock ROM but for a day or so.. I cannot say that it is the new firmware or the ROM I'm using.. I have also seen a LOT of posting about this issue.. LP 5.x.x has a few bugs that are pretty bad headaches to deal with.... hopefully fixes come out for these issues... mainly (in my case anyway) battery life and data connection speeds
Click to expand...
Click to collapse
Thanks for the reply. I am using CleanROM 3.0 KitKat, been using it for a long time now and all the sudden it's bad now. Like I said, no changes made, I'm stumped

O+O - Disastrous battery life due to CM12?

Hey all !
I am back to O+O since 1 month as I was able to find a bamboo version.
Previously, last year, I owned a normal O+O running CM11 and I was really happy with battery life. I was wable to go trough my working day and then get a drink in the evening and keep battery life until morning.
With the Bamboo one I have now, it is impossible. I am around 10% of battery life near midnight. The only differences I see are :
- Bamboo cover (I don't think it is impacting battery life)
- The phone is 1 year old, perhaps the other owner did something wrong with the phone and ruined the battery
- CM12
I think the answer is in the version of CM ... Can you confirm me that ? Do you know if I can downgrade from 12 to 11 ?
My phone is used at work, not too much, I shutdown useless services and connection as LTE, Bluetooth, NFC, Location, ...
So that's really annoying I am already lowering my usage of this fabulous phone to be able to reach a full battery day and it is getting me sad
Thanks in advance for your help and toughs and excuse my poor english
Lag
fx.lagwagon said:
Hey all !
I am back to O+O since 1 month as I was able to find a bamboo version.
Previously, last year, I owned a normal O+O running CM11 and I was really happy with battery life. I was wable to go trough my working day and then get a drink in the evening and keep battery life until morning.
With the Bamboo one I have now, it is impossible. I am around 10% of battery life near midnight. The only differences I see are :
- Bamboo cover (I don't think it is impacting battery life)
- The phone is 1 year old, perhaps the other owner did something wrong with the phone and ruined the battery
- CM12
I think the answer is in the version of CM ... Can you confirm me that ? Do you know if I can downgrade from 12 to 11 ?
My phone is used at work, not too much, I shutdown useless services and connection as LTE, Bluetooth, NFC, Location, ...
So that's really annoying I am already lowering my usage of this fabulous phone to be able to reach a full battery day and it is getting me sad
Thanks in advance for your help and toughs and excuse my poor english
Lag
Click to expand...
Click to collapse
I'm guessing its going to be due to CM12 which has poorer battery life across different devices compared to previous life on Kitkat. You can go back to kitkat or run both via multrom which is what I do. You can compare both and I clearly see that kitkat standby time is far better with probably an extra hour or 2 screen on time. Is your bootloader unlocked? If not your going to need to, to flash back to previous android versions.
gsmyth said:
I'm guessing its going to be due to CM12 which has poorer battery life across different devices compared to previous life on Kitkat. You can go back to kitkat or run both via multrom which is what I do. You can compare both and I clearly see that kitkat standby time is far better with probably an extra hour or 2 screen on time. Is your bootloader unlocked? If not your going to need to, to flash back to previous android versions.
Click to expand...
Click to collapse
I had also the feeling the issue is caused by CM12 and Jelly bean.
thanks for your idea of multirom, I am going to have a look at that tonight !
fx.lagwagon said:
I had also the feeling the issue is caused by CM12 and Jelly bean.
thanks for your idea of multirom, I am going to have a look at that tonight !
Click to expand...
Click to collapse
Its definitely worth it, theres a guide to booting lollipop and kitkat roms alongside eachother in the thread below. Sounds tricky but once you get the right files together its fine.
http://forum.xda-developers.com/oneplus-one/general/guides-mmwolverines-opo-mods-tips-tricks-t3027926
gsmyth said:
Its definitely worth it, theres a guide to booting lollipop and kitkat roms alongside eachother in the thread below. Sounds tricky but once you get the right files together its fine.
http://forum.xda-developers.com/oneplus-one/general/guides-mmwolverines-opo-mods-tips-tricks-t3027926
Click to expand...
Click to collapse
MultiRom is installed and updated, I am now checking your loink to get the right version of KitKat rom and I'll install it.
I'll come back here with my impressions asap.
Thanks !

APC8 battery life

Good day.
I have been seeing in some post that after March (APC8) update, because of some mess in android, S7 began to use much more battery.
Did anyone compare it in real life?
Is it worth to downgrade?
If yes, what other function will be lost after the downgrade? (couldn't find any firmware version changelog)
Thank you.
hi, there is a noticable difference in battery life and SoT, I could hit around 6H SoT with my 900F (exynos) with mid/high usage running APC8, it was a very good built.
running BPJ5 atm and hitting around 3H SoT, sometimes little more or less so... yeah i guess its worth downgrading if you dont mind some minor updates and Samsung Cloud, I upgraded mine a few weeks ago, because of Samsung Cloud support and theres Android 7.0 behind corner so I would update anyway. cheers
im still wondering how could Samsung ruin the battery life so bad and not fix it for more than a half year
Im running BPJE latest update. Im on 5hr sot with 18hrs standby
TriceLL said:
hi, there is a noticable difference in battery life and SoT, I could hit around 6H SoT with my 900F (exynos) with mid/high usage running APC8, it was a very good built.
running BPJ5 atm and hitting around 3H SoT, sometimes little more or less so... yeah i guess its worth downgrading if you dont mind some minor updates and Samsung Cloud, I upgraded mine a few weeks ago, because of Samsung Cloud support and theres Android 7.0 behind corner so I would update anyway. cheers
im still wondering how could Samsung ruin the battery life so bad and not fix it for more than a half year
Click to expand...
Click to collapse
Thank you for your reply.
From what i have read, it is android source code issue, not Samsung.
Maybe with 7.0 Nougat upgrade and it's enhanced Doze, could be back to the old battery life.
Hansoliv said:
Thank you for your reply.
From what i have read, it is android source code issue, not Samsung.
Maybe with 7.0 Nougat upgrade and it's enhanced Doze, could be back to the old battery life.
Click to expand...
Click to collapse
we will see. what is really intriguing is that some users are just fine with post-APC8 updates, like falcon here, i dont get it, really...
I have debloated my S7, no GPS, no heavy gaming.. i just dont get it..
I haven't tried BPJE yet, and I might after seeing this thread. I've tried BPJ1 and BPH6 and battery life was horrible - about 3hr SOT. Switched to APC8 and battery life doubled.
Update: I've now updated to BPJE, and the battery life is really good. Almost as good as APC8. Performance is better on BPJE so it's a good compromise between battery life and performance.

Question Battery Drain?

Good morning,
Before updating a few weeks ago to android 12, I was getting decent battery life with use of Galaxy Max Hz. Since updating to android 12, I've been seeing life as bad as this.
I woke up at 8 took off charge. And have done virtually nothing.
Anyone having terrible A12 life? I literally watched it drop from 82 to 81 typing this.
You still having bad battery drain?... not sure if they might of fixed it, as my phone has quite decent battery life with alot of use, watching online sites & Netflix etc..one thing I don't use which I see you have is Facebook & messenger which I do know from experience how much these 'work' in the background...my battery life was better immediately when I got shut of those imo intrusive apps...they're always doing something.
I had to re-flash the stock firmware 5 times because of terrible battery life before it finally settled down, I think it was something to do with the kernel. Are you able to odin flash the firmware again?

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