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Poor Note 8 Exynos Battery Life?

Hi guys, has anyone else been experiencing poor battery life in the stock note 8 oreo rom? I've factory reset, switched off AOD etc. Same apps installed as when it was on nougat.
Thanks

Mine is doing the same. I reckon it will take a week or two to level out

marcushesketh1991 said:
Mine is doing the same. I reckon it will take a week or two to level out
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i agree mine used to do that on nougat

I also have terrible battery life.
I've switched AOD off, as well as the weird Gallery settings (like Image Analysis etc), but it's still losing 30% battery while sitting idly for 3 hours.
I hope it does level out soon enough.

moustafasadek11 said:
Hi guys, has anyone else been experiencing poor battery life in the stock note 8 oreo rom? I've factory reset, switched off AOD etc. Same apps installed as when it was on nougat.
Thanks
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Click to collapse
Maybe some of those apps aren't as optimized for Oreo yet. In any case, let it settle for a while after a major update like Oreo. I got over 5 SOT with my regular usage (27 hours runtime) on my first full charge after updating. Not bad, but it will improve a bit from there on my next 1-2 charges and hit 6 hours SOT like before.

I recommend you install betterbatterystats, give it permissions through adb, and let it run. Post some screenshots from the summary, kernel wakelocks, and partial wakelocks tabs. It'd make it easier to pin down the issues.

Okay guys, so it is the third/fourth day now and battery life has gotten better. This morning I did wake up to a bixby update, so maybe that was the issue? Anyways hopefully the battery life stays like this ongoing.
As soon as OEM unlock comes up I'm flashing a custom ROM ;P

Redmi 4X pie problems

Hi redmi 4x users, if I install any custom rom running on Android pie it's getting serious overheating and battery drain, also during browsing internet or messaging. I want to ask everyone who use custom ROMs on redmi 4x, if you face these issue too or it's hardware problem on my device only. Overheating isn't so strong on lineage os but it's still there, so only thing I can do, is having MIUI rom. The most strange is, it's happen only on any non-MIUI rom, on modified MIUI rom(from rom builder) isn't this issue, so I'm really confused where is whole problem, maybe in fact, that stock Android hasn't MIUI aggressive optimization, but I don't much like it, only good thing I like on MIUI is temperature of whole device and battery life ?.
Sorry for bad english and thanks for any reply.

I've used Pixel Experience ROM with Android 9 (Pie) based since June last year until now and everything works normally. The temperature is between 28° C (idle) and 40° C (gaming) and I think it's still acceptable.

No, i don't have this issue. Currently i am using havoc os 2.9 based on pie and i am using Pie builds since when it was made available. i get screen on time of 8+ hours. there is no heating issue while charging nor doing other tasks/multitasks. however when i use Gcam for longer time it tends to go little warm and that is totally fine because it is high CPU demanding.
Maybe you should try clean flash with latests gapps(if you use Gapps) sometime Gapps also causes heating issue.

I've used my phone on pie and 10 for a long time, but went back to stock MIUI in the end (7.1.2 ugh) because the battery drain was ridiculous, especially when on mobile data. got sick of having to go everywhere with a wall charger+cable or 10,000 mAh powerbank+cable, or both+cable. now it's much better, but I feel the battery aging, the phone has been in use non-stop since december 2017.

zemle125 said:
Hi redmi 4x users, if I install any custom rom running on Android pie it's getting serious overheating and battery drain, also during browsing internet or messaging. I want to ask everyone who use custom ROMs on redmi 4x, if you face these issue too or it's hardware problem on my device only. Overheating isn't so strong on lineage os but it's still there, so only thing I can do, is having MIUI rom. The most strange is, it's happen only on any non-MIUI rom, on modified MIUI rom(from rom builder) isn't this issue, so I'm really confused where is whole problem, maybe in fact, that stock Android hasn't MIUI aggressive optimization, but I don't much like it, only good thing I like on MIUI is temperature of whole device and battery life ?.
Sorry for bad english and thanks for any reply.
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I use Havoc OS with latest android version (Q) since February and there is no bugs or battery draining problem.
Maybe its your device problem.

10 months trying fixing battery drain (k20 pro/mi9t pro)

So, It has been 10 months of headaches. Bought in july 2019, for two months best phone ever, battery lasted 2 days, near to 1-2% of battery drain at night on standby. After installing miui 11, the battery said "bye bye". 3h screentime, need to charge the phone twice a day, losing 10%/h on standby.
What I tried is:
-havoc os
-xiaomi.eu Miui 11-12. beta and stable
-Evolution x
-latest firmware always/reinstalled latest firmware-vendor
-always clean install wiping everything
-new battery 2 months ago (same results, no difference at all)
-no app is draining battery in the settings
-unistalled analytics and miui daemon (msa not found on xiaomi.eu roms)
the phone goes in deep sleep as you can see in the photos in the link below.
Gps, wifi and bt always on. Tried switching them off, just 1% less of battery drain on standby.
Bought a broken mi 9t pro just to try switching motherboards, just to try that it isn't a electric or physical issue with the phone, but can't do it that right now, waiting the new screen to test the broken phone.
https://photos.app.goo.gl/zaAoKBJ4txMa7vRg9
Any suggestion?

Have you tested putting the phone on standby in airplane mode? This is unlikely to be the root of the issue but poor cellular signal may negatively impact the battery life.

wsydgx said:
Have you tested putting the phone on standby in airplane mode? This is unlikely to be the root of the issue but poor cellular signal may negatively impact the battery life.
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tried that also, nothing change. Always 4%+/h of drain in standby.

I've pretty same problem, and it's really strange...
I've a Mi 9T Pro, bought not more than 2 months ago brand new, all stock.
I leave on just the phone active during the night, in both SIM cards: no bt, no wifi, no mobile data active.
The battery drain is around 10%, which is really insane considered that before my 3 years old phone, an Honor 8, in same conditions, was draining not more than 4%.
In general battery is draining really too much.
Passed OTA from MIUI 11 to 12, but the drainage is same.
I'd like to understand what is the issue causing that.

Dude. Same issue for me. It's only 6 months old. I noticed battery loss on miui just a month into purchase. I'd suggest pick a rom without Gapps or one with microG and try them out. I was using evo X and getting around 6-7 hrs SOT. Once I moved to Aim and Omni I started getting 9-10 SOT. I think Gapps is mostly the culprit. Miui sucks these days. I tried miui 12 and was utterly disappointed. Try this and you might just start loving your phone again. I'd say go for Omni and setup microG, install greenify, turn off battery optimisations only for essential messaging apps and turn on aggressive doze. Your sure to see a difference

Try havoc os 3.7 , try it without social apps like instagram, facebook and other crap.
Mine usually lasts around 3 days with 6h sot.
I also have gps , bt , sync and data always on

Tried gms doze? Disabling autostart of apps in miui?
Mi 9T Pro ll Tapatalk

The point, guys, is not to try different ROMs or install apps or not to use social medias because the phone drains battery...
The point is that the phone should not drain battery that much at all!
I think Xiaomi should care more of the firmwares released, trying harder to fix bugs that might be important rather than releasing new features.
My own opinion.
PS. Last night i checked the battery drain thoroughly: from 1.30 am to 7.30 am, just both SIM cards on to receive eventually phone calls, no WiFi, no BT, no internet connection, ND mode active = battery drained 9%
It is not acceptable!!

Clear all apps from memory, clear cache of 'Google Frameworks' and 'Google Play Services' don't restart the phone
I do this whenever I remember usually every few days and get great SOT around 9-11 hours. Although Accubattery says my battery health is 3300 of the 4000 as I've had it for a while and I'm a very very heavy user. Brand new was getting closer to 10-12 hours doing this same method.
I found it by someone posting a random comment somewhere in this forum just don't know who or where I saw it. They gave no explanation as to why it works but just what they did and its worked immediately. Note I'm still on MIUI 11.0.3 Global as I'm nervous this method won't be as effective in more newer MIUI Versions.
If you have a newer version please try and let me know if it still works, hope this helps
Also I reinstall MIUI through the phone after clean flashing it via Mi Flash
That is that I flash clean (erase storage but not lock bootloader) from Mi Flash and then go to the update settings of the phone and then press the 3 dots at the top left and "download latest update" and then install it again
This helped when I was on MIUI 10.X.X but do it out of habit so not sure if it helped for MIUI 11.0.03
edit: Reinstall method

Similar issue with my K20 Pro.
1. The battery backup on Android 9/MIUI 10 was giving me close to 1.5 days of backup of 7-8 hours of screen time.
2. It was decreased to 6-6.5 in Android 10/MIUI 11
3. Now with MIUI 12 it is reduced to 6 hours and with need of charging two times in a single day. All this with no social media apps, only Whatsapp, Youtube, Prime Video, Spotify and MS outlook, teams apps with regular usage. WIFI all the time, no GPS, 2-3 hours of Bluetooth. plus tried deboating MI apps.
So far I have tried PE, EVOX and EU roms but all gave me disappointing battery backup. The battery seems fine only on android pie so my assumption is that battery probably doesn't need replacement and more of xiaomi's firmware related issue on android 10.
It's so disappointing to see such a great piece of hardware holding back because of battery. I hope somebody find a good solution to this issue.

Question From oxygenos to coloros?

I have the EU Version. Can i switch from oxygenos to coloros? If yes how?

Can I ask why you want to downgrade your phone? Coloros is terrible and limits a lot of control. I ditched it on the 9RT as soon as I could.

I think the reason might be high battery drain in the EU and IND ROM , the color OS was giving close to 7hours SOT but oos gives like 4 hrs only

I hate to tell you, but having used both the Oppo Find X5 Pro (ColorOS) and OnePlus 10 Pro (OxygenOS) - the Find X5 Pro actually has the better OS. OnePlus removed a lot of the customisation options from ColorOS to "match" older OxygenOS releases, and in the process introduced some annoying bugs like not being able to dismiss hidden notifications.
There's nothing in OxygenOS that goes above and beyond ColorOS these days - in fact, OxygenOS is the poor relative! (that's why my OP 10 Pro has been sold this morning).

Trickster69 said:
I think the reason might be high battery drain in the EU and IND ROM , the color OS was giving close to 7hours SOT but oos gives like 4 hrs only
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And that battery drain is really awful!

I'm not sure if you can go from OOS to COS but I wouldn't bother, the amount of people wanting to go the other way is incredible.
Plus I do not buy into the battery drain issue. My first ever discharge I got a little under 11 hours SOT and I was not holding back at all.
If I had to guess I'd say you could jump to color OS, you'd have to grab a firmware, pull payload.bin then boot to Fastboot mode and flash each image to each part of the phone..
Just an FYI, ROMs are coming so if it were me I'd optimize android 12 OOS as best as I can and wait for the good times to roll in.

I will say coloros has a much longer SOT than OOS, but that is because no more than 5 apps are allowed to launch on startup so it is really debilitating since you will not receive any notifications until you open the app, but then coloros will close the app after a while and you won't get notifications again. ColorOS would be good if they get rid of all the debilitating features, remove phone manager, allow you to change default apps without changing it back, and install the default android installer.

Question Funtouch OS 13 upgrade issues

Hi all, I have just updated my Vivo X70 pro + to Funtouch OS 13 from the Trial version option from the system update options. Once the update was done, the first thing I noticed was the temperature of the phone which shot up and all the things were stuttering to run smoothly for around half an hr straight which made me want to downgrade the OS again. But now it is running smoothly.
But I would love to know a way to downgrade it.
Also, the battery on this phone is just disappointing just after a year. It gives me around 4-5 hrs of SOT and I end up charging the phone for 2-3 times a day. Please let me know if anyone else is facing the same issue and if anyone has found any fix for the issue.

I have done the uppgrade to and i have non problem , all it just good and the best is that VoLTE is included i bought mine in april , the battery is just fine , it holds like 2 days

Damn... Mine drains even when the screen is locked. It's 33% less in the morning after i sleep. Is this normal?

Can more people give me some reviews for the battery?

Also, just got an OTA update and my phone seems to be working perfect again

how did you downgrade?