yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 9 Questions & Answers] Zanders18:
Getting 7 hours at least consistently with around 15-25% left using 90% 4G. Easily 8 hours+ with plenty juice left if I have a decent amount of time on wifi. Best battery life ive ever experience on a phone. Couldn't get anywhere near this on my note 8. Left display at FHD+, Samsung dark theme, opera browser night mode, Twitter night mode, auto brightness and have AOD set to only come on when it's on charge in my wireless cradle. Was going to wait for the Note 10 to upgrade from the 8 but so glad I decided to treat myself. I loved my note 8 but this thing, for me at least, seems much more capable of withstanding heavy use and the minor upgrades are great. I can upload a screenshot.
[Samsung Galaxy Note 9 Questions & Answers] @rbiter:
May as well use WQHD. Unless you need to eke out every little bit you probably aren't saving anything worth while. And does leaving it on charger with AOD risky for burn in since it is open and not in pocket and leaving ALWAYS ON?
[Samsung Galaxy Note 9 Questions & Answers] Dpk1:
On Wifi use (most of the time) with 4G data, battery backup seems better than ever! 4+ hours of screen on time with half a day standby and 62% battery still left! Best battery backup I've ever had on any smartphone. Couldn't be happier!
[Samsung Galaxy Note 9 Questions & Answers] force70:
Ive been seeing around 5hrs SOT, which is around the same as on my exynos S9 plus.

Im not impressed one bit, may switch to an N9600 snapdragon and see if its better.
[Samsung Galaxy Note 9 Questions & Answers] riduanua:
What do you mean by Batery backup? why I never get such god battery life with my new note 9? im on 50% battery and its not even 6 hours since i fully charged it. Need help here
[Samsung Galaxy Note 9 Questions & Answers] Dpk1:
When talking about smartphones "battery backup" simply means the total time you get to play with your device (screen on time + standby time etc) on a single full charge (100%), without needing to recharge in between, till the battery is fully drained (although I don't let it drain below 15%).

Your usage may vary from mine. Read on this thread for battery related queries. There are people getting very good and also those with bad battery backup on their Note 9. In your case, there might be some rogue app keeping the CPU awake, if it's not a bad/faulty unit you got! My best guess in the absence of any battery usage details from your end!
[Samsung Galaxy Note 9 Questions & Answers] OreoLivesOn:
The most I ever got was 6h30, but then I installed a custom rom that has a different kernel, so I recently installed the latest version, it takes time to adjust however but I have been Impressed with the battery ever since. However it's too early to give my full verdict now. For it to fully settle it takes a month or so I think.
[Samsung Galaxy Note 9 Questions & Answers] @rbiter:
I've been getting 5.5-7.5h, usually after 12h off charger, by the time I hit 50%. Not everybody will get the same. I don't hit my phone hard but I've been getting those times watching YouTube+bt. Sometimes using chrome, which drains my battery. Naked browser with black theme helps a lot. YMMV. Can't compare to everybody else. Unless you're playing 3d games and/or using a high brightness) I think it is safe to say that most peeps should be getting ~8h SOT on a 16h run down. My best times so far have been ~8h ±30mns over 36h. I've also done well over 10h in about 17h and I still have not run down my battery into single digits.
[Samsung Galaxy Note 9 Questions & Answers] ekerbuddyeker:
I'm overall at 7.5% battery per hour, which is approx the same as the 10% per hour on my note 8. It's like adding a bigger fuel tank on a car and saying it does more miles. It's true and yet not really progressive!
[Samsung Galaxy Note 9 Questions & Answers] @rbiter:
I haven't had a note 8. The last AMOLED screen I owned was note4. You can optimize around the OLED screen. Some don't because they want their own phone customization. They should still get great battery life. Some do not do anything about the white backgrounds and get less time. And some people have unrealistic expectations. I am eager to see if iOS pulls a full dark theme option which would probably almost double iPhone X's battery life. Curious to see how this plays out because Google is going nuts with the white backgrounds and barely options for dark theming.
[Samsung Galaxy Note 9 Questions & Answers] Zanders18:
I wouldn't know for sure I hadn't even thought about it to be honest. Dont they make the pixels move around a bit to prevent that though? I would probably use the AOD but on work days it spends most of the time either covered by a flip case or in my hand being used. I'll check that out though, cheers

---------- Post added at 02:42 PM ---------- Previous post was at 02:39 PM ----------

I had a snapdragon note 8 for a couple of months and the battery life seemed no better than the exynos one I had before it. Maybe it struggles finding the network in the UK but I was expecting more given the reviews and comparisons online.
[Samsung Galaxy Note 9 Questions & Answers] xMadMike:
I've stopped looking at SOT and battery stats as such but I am yet to see a battery low warning on this phone and I've had it for 2 weeks :D It's definitely much stronger than the Note8!
[Samsung Galaxy Note 9 Questions & Answers] Virgo_Guy:
Note 8 is equipped with Exynos 8895 or SD835 and are on par with each other if not better.

Exynos 9810 on S9/S9+ and now on Note 9 is being criticized from the beginning for being inferior to Snapdragon 845 counterpart in performance, heat and mainly battery management.
[Samsung Galaxy Note 9 Questions & Answers] high_voltage:
Don't forget the 35-40% faster GPU. Especially with the recently released heavy games, it's a lot.
[Samsung Galaxy Note 9 Questions & Answers] Zanders18:
Interesting. My battery life has been great so far but may need to pick up an SD variant if they're even better. Reckon they can do anything on a software level to boost the exynos or is it hardware related?
[Samsung Galaxy Note 9 Questions & Answers] force70:
As stated above this has been ongoing with the 9810 since the S9 dropped, if Samsung was going to fix it would have been done long before the Note 9 came out.

So either they cant fix it or could be bothered fixing it.

Sent from my Note 9 exynos, S9 plus exynos, Pixel 2 XL or Note FE
[Samsung Galaxy Note 9 Questions & Answers] androFRUST:
HAVE WE NO HOPE!??!?!

I was disappointed with my previous Mix 2s battery, so i swapped to note 9. Always wanted a note since my last note 3. Wanted to get a 7 and 8 but well battery.. Now 4k is not as great as it should with dismal batttery (2hrs SOT with 50% battery at 645pm) . Im seriously hoping there would be an update soon as i think this is the almost perfect phone if not for the battery. Friend using the VIVO Nex is laughing at me everyday.
[Samsung Galaxy Note 9 Questions & Answers] force70:
Well i killed AOD and dropped my screen resolution down to FHD and got this yesterday. Im going to leave the screen res where it is and turn AOD back on since i do prefer to have it and see what i end up with.

Sent from my Note 9 exynos, S9 plus exynos, Pixel 2 XL or Note FE
[Samsung Galaxy Note 9 Questions & Answers] billu:
Are people who are getting poor battery life from exynos installed the Aug update?

I have seen posts of this making things worse.

I am holding off from this update for the time being.
[Samsung Galaxy Note 9 Questions & Answers] paul_59:
My experience with Note 9 (exynos) and many previous phone is the two main factors which affect time between needing to charge are battery capacity (obviously) and usage pattern.

How you use your phone, which apps etc will have a significant impact on time to discharge battery. Apps such as maps will use lots of power, in excess of 700mA or 20% per hour with our 4000 mAh battery.

My Screen off time seems to average 2.0% per hour, screen on time average for me 8.6% per hour and combined use average for me 4,4% per hour over the last week of usage.

With my averages screen off uses approximately 25% of my average screen on time usage, expressed simply every 4 hours my screen is off uses same power as 1 hour screen on time for me.

If you want maximum time between charges minimise high power consumption app usage. If you want to increase screen on time

then use screen on for a greater proportion of time.

My recent usage

used for 22 hr 43 min, (100% to 8% battery) screen on time 6 hr 36 mins

used for 21 hr 2 mins (94% to 22% battery) screen on time 4 hr 40 mins

used for 21 hr 32 mins (97% to 1% battery) screen on time 8 hr 0 mins

To summarise the various usage patterns are what has the greatest impact on battery time to discharge

.

Be aware your usage may be different, my usage varies daily.
[Samsung Galaxy Note 9 Questions & Answers] Jonathan-H:
Hey

I don't get all the battery life woes I see on here. I get around 8-10 hours SOT depending on my useage over a full day.

When I set up my Samsung phones I do the following, and I have no issues whatsoever.

I don't tick any optional settings like sending useage stats to google or samsung, I make sure nearby scanning, bluetooth scanning, and wifi scanning are all off. I turn off the silly options like finger sensor gestures, quick launch camera, palm swipe, smart alert, easy mute, and smart stay, as all these are lazy and use battery.

I turn off AOD and have resolution set to 1080p FHD. I use manual brightness. 50% for the majority of the day and 100% for 2.5 hours while I'm watching Netflix through bluetooth or wired headphones.

With two GMAIL accounts, Instagram, Messenger, Facebook, Whatsapp, Chrome and youtube, I get through the entire day and when it gets close to death at night (10% ish) I have over 8 hours SOT every time.

Games and snapchat will degrade battery life well below on any phone, but I don't use either.
[Samsung Galaxy Note 9 Questions & Answers] Limeybastard:
Yep that "smart alert" option is a sensor hog. With that option on my proximity sensor was on for many hours. Was the same with my note 8.
[Samsung Galaxy Note 9 Questions & Answers] Cool Person:
I want to upgrade from SDNote8 to Exynosnote9

but Kind of worried right now.

I bought mine snapdragon used, I like the stereo speakers [thought i can live without]

but the battery idea of 4k was great until I saw this thread err...
[Samsung Galaxy Note 9 Questions & Answers] iKocka11:
After that I used phone for about 4 hours now its on charger so really good for me! Screen on FHD+ , when wathing Youtube its on WQHD+ .
[Samsung Galaxy Note 9 Questions & Answers] Limeybastard:
For the person who recently mentioned about using WiFi ,props.

I've been exclusively using LTE mobile data signal for my old note 8 and current note 9. After a full charge today I decided to try using WiFi only . Much improvement, not that I was having issues with sot or battery drain, far from it , I was happy but even happier now . 5 hours sot with 71% still left, before it was approx 5 hours sot with 50% battery left.

View attachment 4594867
[Samsung Galaxy Note 9 Questions & Answers] cbotadra:
I was using s9Plus. But recently upgraded to Note 9. I feel battery is much better than S9plus. I am using Samsung Pay (All my credit cards linked), 2 SIMs, Bixby etc. We need to understand because there are so many features in any samsung phone at any given point of time the services that are running in background will be lot more than say OnePlus phone. This will of course hit battery life. Given all this, I get about 6-7 hours SOT which is very good as per me. I used to get about 4 to 4.5 in S9Plus. Three things which I do:-

1. Use Always sleeping Apps option given in Battery section. I have almost all apps in this section. Please note this is not affecting working of any apps.

2. Turn off "Allow Background usage" for Android system. This I believe helps a lot in saving battery.

3. AOD off

I have noticed standby drain is lot less in Note 9 as compared to S9Plus. Overnight it just drops 4-5% for 8hr slot.

Also I feel sometimes we try too hard to save battery. If we consider normal working day of say 13-15hours of heavy usage, I dont think any phone will struggle. Also we have chargers everywhere these days, I don't mind using everything on my phone to fullest and charge for say 15-20mins to get through full day. If charging a phone during the day becomes ego issue(since you have expensive phone) than better use OnePlus phones. :)

---------- Post added at 05:55 PM ---------- Previous post was at 05:44 PM ----------

Ask your friend to get resale value of his phone VIVO Nex. You will then have last laugh.
[Samsung Galaxy Note 9 Questions & Answers] Zappapp:
Resale value is entirely different. If you don't get any value/phone doesn't last heavy usage of one full day, talking about resale value is really silly.

Also, resale value of Samsung is not at all great . Just compare it to Apple. So no point in making silly comparisons. In my country, a new N9 has lost about 20 % of its value in about 2 weeks of its launch & is going down everyday.
[Samsung Galaxy Note 9 Questions & Answers] cbotadra:
So you mean comparing vivo nex to note 9 just on battery is very intelligent?
[Samsung Galaxy Note 9 Questions & Answers] flipsonic:
Exynos/128GB/6GB RAM

FHD

Brightness - Around 40% to 50%

Power Saving Mode - OFF

AOD - ON

16 hours on battery with 6 hours SOT is great. Wish it could last at least 2 hours more on battery, so that I wouldn't have to charge it until after 11pm. But it's the best battery life I've had on recent devices.

My day usually consists of watching videos on my commute to work (1 hour there and back). 4g (no WiFi) during my 8 hour work day, Spotify, browsing internet, social media, Whatsapp and YouTube occasionally (regularly ). WiFi when I get back home to do more of the same.

With my Note 8 I had to fully charge it during work and also top it up before I left work, to be safe.
[Samsung Galaxy Note 9 Questions & Answers] cbotadra:
I am not saying note 9 has best battery but cant compare with vivo nex.
[Samsung Galaxy Note 9 Questions & Answers] Zappapp:
I never said that . What i am saying that if a 1000 Dollar plus phone with a 4000mah battery cannot last one entire day of heavy usage and value of this phone is falling like mad, it certainly has many known and unknown issues and comparing it to any other phone is stupid.
[Samsung Galaxy Note 9 Questions & Answers] cbotadra:
I agree. I had same feeling with s9plus. But somehow note 9 is lasting much longer than that. So I am happy. But yes still lot of room for battery to improve.
[Samsung Galaxy Note 9 Questions & Answers] Zappapp:
Yes, there is huge scope for improvement . Some of the many, many issues -

Battery life is very erratic ( especially in Exynos ), camera has issues - blurry/hazy pictures in some of the SD versions. Some people are encountering heating issues. Touch-wiz needs to be improved a lot, few things for example - inbuilt App Lock, Timer phone off and on, Timer Airplane mode and much more.
[Samsung Galaxy Note 9 Questions & Answers] cbotadra:
No erratic for me. No issues with camera. No heating issues. In fact water cooling is working great. So maybe device specific issues. Using exynos.
[Samsung Galaxy Note 9 Questions & Answers] Cool Person:
I have the note 8 SD and after seeing this Exynnos battery life, I am not going to upgrade.

I am going to save my money, I don't have the exynos version on my country and I bought my Note 8 SD Used.
[Samsung Galaxy Note 9 Questions & Answers] @rbiter:
No wonder the Exynos has issues. TouchWiz was deprecated awhile back.
[Samsung Galaxy Note 9 Questions & Answers] cbotadra:
Are you actually using exynos one and have all these issues or you are going by reviews?

---------- Post added at 04:46 PM ---------- Previous post was at 04:44 PM ----------

You can save money and wait for perfect phone which will never come. Note 9 is miles ahead of note 8.
[Samsung Galaxy Note 9 Questions & Answers] Zappapp:
Maybe not for u, but a majority of users are facing issues , most Exynos guys are pretty dissatisfied with battery.

---------- Post added at 04:49 PM ---------- Previous post was at 04:46 PM ----------

My Exynos Note 8 gives me an SOT of 6 hours. pretty satisfied with that. N9 is not an incremental upgrade, would be buying Mate 20 pro or S 10.

---------- Post added at 04:51 PM ---------- Previous post was at 04:49 PM ----------
[Samsung Galaxy Note 9 Questions & Answers] Cool Person:
Only wanted to upgrade to see if I am missing something in battery department.

Seems like note 9 battery management is horrible (for 4k battery phone) specially exynos model.

---------- Post added at 04:39 PM ---------- Previous post was at 04:39 PM ----------
[Samsung Galaxy Note 9 Questions & Answers] michelino159:
When you do not want to put enough money on a phone you try to find reasons. If you do not like exynos, buy snapdragon and vice versa. I had S9 +, Note8, both with exynos and now Note9. I'm amazed at the battery on Note9 and it's over the other two. They went to Note9 and walked well. SOT was not good on Note8, and I do not shut up all and put a black theme. Let's be serious with such comparisons.Notes9 is over any phone that has so far appeared in Samsung from all points of view. Those who say it is not an upgrade do not know the reality, not to say anything else.
[Samsung Galaxy Note 9 Questions & Answers] cbotadra:
Couldnt agree more. Well said.
[Samsung Galaxy Note 9 Questions & Answers] michelino159:
It's your opinion . I used all the phones and I know what I'm talking about. That on exynos, on the snapdragon I do not know.

---------- Post added at 06:06 AM ---------- Previous post was at 06:04 AM ----------

Notes9, both battery and operating, is impeccable. We'll see after a few updates. :D
[Samsung Galaxy Note 9 Questions & Answers] cbotadra:
Yes i haven't used Snaodragon. So cant comment. I am using exynos note 9 and prev had exynos s9plus. So my opinions are with respect to that.
[Samsung Galaxy Note 9 Questions & Answers] ekerbuddyeker:
I noticed there is a 'app optimization' mode under battery, or somewhere. Can't find it again but my battery life has improved after this switch.
[Samsung Galaxy Note 9 Questions & Answers] Amit.A:
i am getting 7hrs sot without bluetooh connected, and with gear watch connected i am getting 5hrs sot, with an discharge state of 1 day 12hrs without bluetooth, but with bluetooth 1 day 9hrs.
[Samsung Galaxy Note 9 Questions & Answers] beta546:
With fairly minimal effort and no root. I have achieved an insane amount of screen on time.

Beat this
[Samsung Galaxy Note 9 Questions & Answers] a2kay:
Can you share your settings please !:)
[Samsung Galaxy Note 9 Questions & Answers] beta546:
Well as you see the usage was mainly in chrome, was reading through these forums.

I was indoors the whole time so brightness was relatively low throughout, mobile date and GPS were on the entire time. Battery optimisation actually turned off for a few apps, messenger, WhatsApp and Gmail.

All apps that won't be negatively effected by being set to permanently sleep, have been set to do so. Mid level battery saver was turned on at %50 battery, but with background data still enabled.

I think one of the biggest benefits was from disabling about 90 of the built in crapps, using adhell which some people think is an effort to set up, it's not, takes a matter of minutes navigating Samsung website for your key, and installing one app normally, well worth it for system wide as block, and the ability to disable all the useless garbage.

None of those settings have even the slightest effect on performance or make the phone behave any different to how it should.
[Samsung Galaxy Note 9 Questions & Answers] alex989898:
As far as I know, it's the only test comparing directly the Exynos Note 9's battery life to the S845 Note 9's battery life.

https://www.cnet.com/es/samsung-galaxy-note-9-caracteristicas-analisis/

They test battery life by playing the same video till the phone die, while in airplane mode.

Not the most representative test for day to day battery life but at least, it's fair.

End result is that the Exynos model has a slightly better battery life than the S845 Note 9 in this test.
[Samsung Galaxy Note 9 Questions & Answers] beta546:
Yes at least a fair test in a like for like situation. And with my experience so far, I could not possibly imagine the Snapdragon version being any better.

I keep seeing people talking about the exynos version being badly optimised and worse on the battery. That never made sense to me, the exynos is developed and manufactured by Samsung themselves and they're using it their own hardware, how could they do a worse job optimising that, than a 3rd party chip haha.
[Samsung Galaxy Note 9 Questions & Answers] alex989898:
I wouldn't say it's badly optimised (since it's perfectly smooth on day to day use) but I'm pretty sure that when it came out, the Exynos 9810 was really not as good as the S845.

I follow closely the GS9+ forum since I was interested to buy one but battery reports on the Exynos model were pretty bad or, at least , subpar to the s845.

Lots of reports were around 3.5h to 5.5h SoT with not even a half a day off the charger. S845 reports were more around 6h to 7h SoT.

I don't see the same pattern here. Reports are quite good on both phone. And in fact very similar (I do a recap in the SoT topic and I calculate the average SoT. I see nothing to worry about).

My only concern is that reports are more inconsistent with the Exynos model. But as there is more Exynos users, it might be only a statistical effect.
[Samsung Galaxy Note 9 Questions & Answers] beta546:
Yeah I get what you mean, it's really hard to get a general idea of battery usage when so many use their phones in different ways. What's safe to say though is that the note 9 battery is at worst a good battery, at best an amazing one as you'll see from my screenshot, 12 hours screen on time with minimal battery saving measures in place is amazing. And that's on exynos (N960F) Maybe Samsung just did a better job with the chip in this phone, some people have posted 3 to 4 hours SOT with minimal basic usage, but there, the most likely option is, either they have a defective unit, or its user error in app choice with stuff secretly draining the battery and such.
[Samsung Galaxy Note 9 Questions & Answers] a2kay:
Do you use Snapdragon or Exynos? Would you share with me please, which build in apps you are disabled and for which app you are disabled the battery optimizing?:) thanks
[Samsung Galaxy Note 9 Questions & Answers] lawtq:
You really should try keep an open mind. You're right, Samsung exynos should be better as it's their own chip. It's just not thought. I have both, have installed exact same apps on both phones, and after playing multiple videos, benchmarks and games on a head to head test simultaneously, the snapdragon had about 8% better battery at around 60% battery left, was cooler by a few degrees too.

If those tests are done till full battery depletion that'll be a noticeable difference
[Samsung Galaxy Note 9 Questions & Answers] beta546:
I have the exynos, and the apps that have optimization disabled are just android messages, WhatsApp, Gmail and Facebook messenger, just to avoid problems with notifications, I see no extra battery drain from them. All other apps that don't need to ever do anything in the background, like gallery, music player and basically every app that doesn't receive push notifications I have sleeping permanently, and they still open instantly when I press them, then go back to sleep after. As for the list of apps I disabled, it's quite long, but what I could do is post my XML from package disabler pro, I used that to doable everything before adhell, in that XML you'll see the list of apps, obviously there may be some stuff in there that you want to use, so you'd just not disable those.