yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 8.0 (Tablet) General] gooberdude:
Ummmmmm... it i not common for a data sheet to be printed improper or a chip to have a revision not shown in the data sheet.

For example, TI made ROM (Read Only Memory) long ago that its data sheet clearly shows a read pin, but the chip was not made with a read pin enabled. So they were the first to make a WOM (Write Only Memory).

Another is Intel, their 386 cpu had control lines for floating point calculations that were not published until late in revision. Many after market 386 mother boards were made without such control lines. So IBM and Compaq ruled in the ability to do high level computations. Only a hand full of after market mother boards would work.

I answered this type of thread long ago... here is my answer again. Google states that no battery calibration app or method will work on Android, all they do is bandaid the issue of not properly charging. Samsung's DVFS has been an issue with many Samsung devices, as it does not play well with Google's battery management system within Android. Disabling DVFS is the only way to go to remedy having to clear the battery stats file or remove the battery power connection and reinstall.
[Galaxy Note 8.0 (Tablet) General] rtiangha:
You've obviously never purchased hobbyist chips from questionable Chinese companies. There's a reason why they're cheap. Surplus, slightly defective, bootleg, etc. There are many reasons why a chip might not line up with a data sheet if the chip isn't legit. Not implying that Samsung is using bootleg fuel chips, of course. But why can't we reset the fuel chips used in the Note 8 in software like its data sheet says without resorting to a battery pull? It should work, right? It's either a hardware problem or a software problem.
[Galaxy Note 8.0 (Tablet) General] Wonk258:
I want to thank you guys for this thread. I did the battery pull on my wife's note 8 and it did wonders. Don't fully understand the issue but the results are quite amazing. She was charging multiple times a day and now only every other day.
[Galaxy Note 8.0 (Tablet) General] aild01:
What if i use cm11 or 12? Should i still need xposed and disable DVSF?
[Galaxy Note 8.0 (Tablet) General] jgaviota:
To those that made the battery pull, what tools did you use? How much force do you need to pull of the back cover? I mean to unlock the tabs...

A detailed explanation of how to take off the backcover would be great :)

Thanks!
[Galaxy Note 8.0 (Tablet) General] rtiangha:
YouTube is usually a good resource:

https://youtu.be/sZG28TPmd8Y

As for tools, if you don't have the same ones as in the video, you can get away with a plastic credit card (an old or expired one might be preferred; they can get chewed up as you pry things along), or some old guitar picks could work too. A slim flathead screwdriver might work too, although that can damage the plastic.
[Galaxy Note 8.0 (Tablet) General] Wonk258:
I just used a ballpoint pen inserted into the S-pen opening to break free the cover then worked my way around using my finger nails. It did feel as though I had to pry harder than I anticipated but it worked.

I do have fairly hard nails it most likely would not work on some one with thin or soft nails.
[Galaxy Note 8.0 (Tablet) General] stargazer81:
battery charges only sometimes

My note was working great until 3 days back.When i try to charge my battery ,it simply doesnt charge,i tried cleaning the ports ,draining it out completely (removing the battery to remove whatever charge was there on the mother board),factory reset everything i could find on the internet.

suddenly it started charging on its own, but again it does not charge,battery retains charge and there is no over drain or anything .

The device seems to charge when ever it wants.

I am not sure what the problem is ..hardware ,software ..i am so confused...

has someone had this problem before...
[Galaxy Note 8.0 (Tablet) General] sefrcoko:
Try charging with a different cable to see if that's the issue. You can also try charging via USB or wall adapter to rule out that part too. If no success, then it might be a sign that your battery is dying but can't say for sure.
[Galaxy Note 8.0 (Tablet) General] Shofar1:
I had to replace the USB port.

I had Samsung Germany (where I bought the 8) do it.

I also asked for a new battery.

They replaced to USB and now it charges fine but they obviously didn't replace the battery and it discharges very fast.
[Galaxy Note 8.0 (Tablet) General] deep7177:
This will Increase battery life greatly.

https://www.youtube.com/edit?o=U&video_id=Ntl_FrLte0A
[Galaxy Note 8.0 (Tablet) General] Corrine25:
Is it ok to lose 10% of the battery life of samsung Note 8 in one hour usage only in browsing social media?I fully charged my device 8 hours before using it.
[Galaxy Note 8.0 (Tablet) General] |mickey:
If you're using a leech of an app like facebook app then it wouldn't surprise me...
[Galaxy Note 8.0 (Tablet) General] gooberdude:
He is not experiencing a leach app, unless he is using Google play services.

I am recently testing a recent beta play services. Outside of speed Improvements, battery run time is pretty good, though you need to kill 60 background services to keep unneeded play services from hogging cpu threads in background.

Google wants every bit of your data, and will not turn off disabled services. So, just don't trust what you see in settings for connectivity and location. If such settings were truly disabled, I would not have to hack into play services to kill them.

Right now I am able to get 13 hrs run time with stock KitKat Boeffla kernel and speed mods in the utility. Until I can eek out 60+% display power usage while in use, 13 hrs is the max anyone can have period.

Oh, by the way... greenify won't get you there... prevent running is greener than greenify.

So if your are above 4% battery used, every 30 minutes of browsing, then play services or too many apps running in background.
[Galaxy Note 8.0 (Tablet) General] gooberdude:
My battery life

Well, I have stock 4.4.2 with Beoffla Kernel and a few mods with S5 apps and libs along with some ported Tab system apps.

I get about 1 hr per 8 % on my standard usage.

Here are some images... below is 30 minute mix of use. Notice my Chrome services blocking has limited multiple sandbox and consumption.

This is my top charge time... takes 8 minutes of idle time to drop 1% from a full charge.

Here are my background services... Notice play services and framework are low compared to other system service. Play services will drop below Samsung keyboard when I am doing more typing and work.
[Galaxy Note 8.0 (Tablet) General] TheNeighbor101:
I noticed my battery charging funny. Power level dropped from 60% to 40% in a second, and charge goes 100% when it reaches 92%. Lithium ion has some charging memory issues unlike it was thought before.

I had a friend who told me he ruined his battery's ability to hold a charge from the constant charging at work and at home, even with the indicator saying it's fully charged.

And so, I've started strictly implementing plug charging at 20% and pulling out the plug at 80% charged, 3 weeks ago for this 4-month old Note 8.

Have a watch here why this is a better way to manage your charges so you get more life with your device:

https://www.youtube.com/watch?v=rOi1NF7Ipek&feature=youtube_gdata_player

AndroidGuy explains the whys.
[Galaxy Note 8.0 (Tablet) General] Taiyo85:
arenabli productive

Thank you ;)
[Galaxy Note 8.0 (Tablet) General] 25jan:
thinking about the variation in operating temperature effect on the screen on time from user to another .. may be users lives in high temp regions get fast charging time with less battery life time!
[Galaxy Note 8.0 (Tablet) General] ncguy68:
FHD screens don't use that much battery power. My new Nexus 7 battery is outstanding...giving close to 11 hours screen on time per charge with a smaller battery. The Note 8 only averages 7-8 hours with a larger battery and lower res. Screen.
[Galaxy Note 8.0 (Tablet) General] TheNeighbor101:
No, it's how the internal resources are balanced to give to you an optimized device. It's not the full HD screen alone.

rooted stock Galaxy Note 8 GT-N5100
[Galaxy Note 8.0 (Tablet) General] TC93:
With constant web browsing I get 10% battery use per hour on my Note 8. The same as our ipad 2.
[Galaxy Note 8.0 (Tablet) General] pnKK:
Here is my battery life on my Note 8 wi-fi only N5110. I've browsed the internet, learned and taken notes with the spen all day long and that's the result.
[Galaxy Note 8.0 (Tablet) General] 25jan:
seems like nice battery life for note 8, let us know ur model and uage habbit and if any tricks u do for better battery life? .. thx
[Galaxy Note 8.0 (Tablet) General] TheNeighbor101:
One of the things I do is setting it to airplane mode and only turn on the wifi connection, especially tethered to my Note II for Internet.

Putting it to power saving lowers the lights and cpu frequency will also help.

I understand the Dolphin browser needs lesser data downloads than Chrome. Lesser data, lesser cpu processing. I'm currently doing this experiment for a week to see a difference.

Set your account syncs like Email to longer intervals like every 4 hours.

And if you root, you can use Greenify to hibernate apps to stop wakeups for updates like Facebook.

rooted stock Galaxy Note 8 GT-N5100
[Galaxy Note 8.0 (Tablet) General] craig0r:
I would think it would use more CPU. The way they decrease the amount of data transfer is likely to transmit compressed data. This data, of course, has to be uncompressed, which will use the CPU. It will, however, use the wifi radio a little less. Either way, I'm sure the compressed data won't affect CPU/wifi power consumption too much. This feature's more for people on low-data cell plans.

(Also of note: Chrome does compressed data now too, but I'm not sure how it compares to Dolphin.)
[Galaxy Note 8.0 (Tablet) General] TC93:
I just have the wifi only model. I can't remember if I viewed any youtube videos or not when I timed it last time. Videos drain it faster. I have my screen brightness around 20 or 25%, only because thats the brightness I want for inside my house. I did have the gps turned off.

I am no expert on any of this.
[Galaxy Note 8.0 (Tablet) General] 25jan:
The 4 ur reply ... mine is N5100 and used to do all the tips but still getting about 1 hour per 20% even after factory reset and no apps downloaded, even wz just reading and bright 26% .... do I have to ask for warranty support?
[Galaxy Note 8.0 (Tablet) General] Taiyo85:
This is more or less what I'm getting also. But I think the culprit in my case is facebook...
[Galaxy Note 8.0 (Tablet) General] 25jan:
I read users and reviews talking about 7 & 8 hours !!
[Galaxy Note 8.0 (Tablet) General] Taiyo85:
When I was in stock sometimes I was getting that... We are not that far away. You just have to be carefull with the connections turned on (Bt, wifi and gps...), and with the screen. I'll test mine and let you know =)
[Galaxy Note 8.0 (Tablet) General] 25jan:
I wanna share my trial of battery calibration that really make a significant different at least till now .. I used to make calibration by discharge / charge cycles, but this time i add an official instruction of Apple:

- discharge the battery by ur normal usage till 1% then let the device play an HD movie till it shut down (that may take some time as it for me takes 4 hours!!) then turn it on to make sure the battery read 0% (my previous calibration the battery always shut down at 1% and I never see that 0% as I was discharging it vigorously) after making sure it is 0% it will turn off by itself anyway.

- now leave ur device turned off for extended time (about 5 hours or more is better according to apple "u could let it while u r sleeping")

- after that turn the device on and plug it in as it is on

- left it charges as it likes (for my trial it takes 7 hours and didn't say charged!! but I had to unplug it as I had to leave the work!)

till now my battery is really significantly improved, hoping to continue like that and I will keep u updated

Hope that helps :good:
[Galaxy Note 8.0 (Tablet) General] Taiyo85:
I've more or less tested my battery life in normal use. I got 9 hours with screen on with 10% left of battery. Sorry the pics are in portuguese... I have CivZ kernel on stock 4.1.2 rom.

1 hour of streaming

2 hours of miscellaneous apps (facebook, hangout, messenger, pulse...)

6 hours of reading on readers hub...

I did not have wifi connected the whole time when it was not available. So i guess 6/7 hours of wifi. Screen brightness to 20%. Auto airplane mode app for when the screen turns off
[Galaxy Note 8.0 (Tablet) General] joy.d:
Hi [MENTION=535343]all[/MENTION],

what is the best Battery Meter (maybe Widget) for use with Note 8?

I´m really interested on exactly power metering during the charging with mAh /mW information Data.

I need to match this with external power meters for scientific work on climate research. Later the note 8 should work long time independently with solar power on mountains.
[Galaxy Note 8.0 (Tablet) General] Taiyo85:
I think thst Battery Monitor Widget is exacrly what you need... it has a lot of options. Here is a screenshot !
[Galaxy Note 8.0 (Tablet) General] 25jan:
I read somewhere that Samsung hardware donnt support such measurements, and such apps calculate them indirectly
[Galaxy Note 8.0 (Tablet) General] ilostmypistons:
Ive been having poor battery life on my Note so I've decided to completely drain the battery.

Well it played a movie and now I'm streaming live HD TV from my slingbox all on 1 percent battery for almost 3hrs. I cant kill this thing so now I know it's just a calibration issue.
[Galaxy Note 8.0 (Tablet) General] windows phone 8:
great

Thanks for that
[Galaxy Note 8.0 (Tablet) General] jhonuy03:
Mine lasted for 11 hours..

N5100,

Wifi always on,

Battery saving on,

Auto brightness..

Sounds, notification on,

Others off..

I play castle clash all the time and other games..

Device always on because I used it as my main phone..

link to image
[Galaxy Note 8.0 (Tablet) General] eried:
I got a much better battery life in my note 8 after installing the Greenify app, I was getting around 1 day using the tablet moderately, but now it stay with charge for 2-3 days.
[Galaxy Note 8.0 (Tablet) General] v205:
What apps do you 'greenify'?
[Galaxy Note 8.0 (Tablet) General] lanwarrior:
Anyone have a list of bloatware I can freeze SAFELY?

Ifrozen a lot but there are still some I don't recognize.

Also, just got my Note yesterday and I have tons of wakelock from:

- wlan rx wake

- audio out

Battery life so far is only 20 hours with 3 hiurs screen time before it hits 16%
[Galaxy Note 8.0 (Tablet) General] jramna1:
batttery draining extremely fast

my wifi only unrooted, stock Note 8.0, battery life has become shockingly bad in the past 5 days. my tablet is about 1 month old at this point.

i have not done anything new in this period of time, i didnt install any new apps. My battery drains from 100% in jus over one hour. i did a Factory reset of the device and still nothing changed.

i tried the one method i saw outlined here which said to completely drain the tab to 0%, then leave it alone for like 5 hrs, and then to recharge it up to max power.

also this problem is most prominent and frightening for me, when ive left the tablet on standby/sleep overnight, when i wake up and start using it for class, or for browsing, it drains in 65 - 70 mins, normally it would drain in about 85-90mins.

i dont leave it on charger overnight, so when i wake up its at about 80% or 85% charge. i rarely charge it to full power.

1. im wondering now if the case could affect the battery life of it.

2. could anyone tell me, if rooting the device and then using battery calibration and other rooted only apps (the antutu app and the battery calibration app require rooting*) might bring some improvement to my battery life.

3. should i take it samsung customer support to have it changed?

4. does anyone think that the case i bought could affect battery life, its a poetic case, and it does put the tablet to sleep, so im assuming it has a magnet in the clasp area of it.

im so worried, this is my first android device, im a uni student and i work hard for everyting i use in sch and for my essentials. so this was a huge investment for me. dont mean to harp on about my life, but id be so grateful for a solution to this issue or some good solid advice.
[Galaxy Note 8.0 (Tablet) General] lanwarrior:
Install BetterBatteryStats and see whats waking up your tablet.

On mine...see above...
[Galaxy Note 8.0 (Tablet) General] edan1979:
you can check from this list on note 2 thread... its the same as note 8 (and mostly other samsung device)

http://xdaforums.com/showthread.php?t=1910885
[Galaxy Note 8.0 (Tablet) General] lanwarrior:
Thanks for the link! I went through the list shown in here (Google Spreadsheet) and I couldn't find these:

AvrcpServiceSamsung - com.samsung.avrcp

DSMForwarding 4.1.2-N5110UEEMF2

DSMLawmo - com.sec.dsm.system

INDIServiceManager - com.samsung.scrc.idi.server

IOTHiddenMenu

MAPServiceSamsung - com.samsung.map

Remote Controls - com.fmm.dm

Remote controls v1_1302_5_2

Remote controls v1_1302_4_1

SysScope - com.sec.android.app.sysscope

ShareShotService - com.samsung.shareshot

The above are started at boot time, so I don't know which one I can disable.
[Galaxy Note 8.0 (Tablet) General] lanwarrior:
Here's my battery life - I try to use it as "normal" yesterday and afterward, left it overnight without charging.

Is it good?

Time: 18 hours 39 minutes

Screen time: 4 hours of screen time

Remaining: 27%

As you can see from the pictures below, there is a LOT of

wlan_rx_wake

and

battery_monitor

wakelock. I don't know what is "battery_monitor", and it cannot be the BetterBatteryStats app (what I use to monitor), since I had this on my Galaxy S4 Active and I never seen this before.

On the 1st and 2nd picture, you'll see WiFi keep waking up ALL THE TIME, draining my battery, even when the screen is off.

---------- Post added at 09:45 AM ---------- Previous post was at 09:39 AM ----------

What do you use to AUTOMATICALLY turn off ALL connections when the screen is off?
[Galaxy Note 8.0 (Tablet) General] CASz:
I put mine in blocking mode at night, it turns off all notifications and WiFi. Also in wifi settings in the advanced menu you can set to turn off wifi under different conditions.
[Galaxy Note 8.0 (Tablet) General] lanwarrior:
I set this to turn off the blocking mode at 6am but it didn't. Is this a bug?
[Galaxy Note 8.0 (Tablet) General] dwibbles33:
That's hilarious lol
[Galaxy Note 8.0 (Tablet) General] nickdollahz:
I'm working on my own list of which apks are safe to remove/freeze. Welcome to contribute. Link
[Galaxy Note 8.0 (Tablet) General] hertsjoatmon:
An app called auto airplane mode. It's a very simple and basic app but does exactly what it says. It puts your phone in to airplane mode when ever you switch the screen off. It does have to the option to keep some connections open if you wish, but I never do. And if I need to keep wifi on, for example if im listening to internet radio, its easy to disable the app as it keeps a short cut in your notifications.

https://play.google.com/store/apps/details?id=com.blogspot.donkun3.autoairplane
[Galaxy Note 8.0 (Tablet) General] CASz:
try it again and make sure you have the start and stop times the right way. I do this with both my S4 and Note 8.
[Galaxy Note 8.0 (Tablet) General] dewadewi:
strange, funny battery

my note 8 battery acting strange lately.. it having kind of jumpy charging, at point it charging very fast, let's say from 0-30% about half an hour but it sometime's take so loong like from 90-100% about 1 hour so total from 0-100% i get somewhere between 4-5 hour and it's charged while the device is turned off using the stock wall charger.

when I play with it, the note have a normal idle and usage drain but as soon as I playing heavy 3D games (Nova 3, Modern Combat 4/asphalt) it would drain somewhat about 30% per 10 minute's... that's abnormal... I have K860 and it ussualy drain about 20-25% / hour for games like that

and here's the funny thing, I'm having the same experience like ilostmypistons did... I try to drain the battery at 1% it kept playing HD movie the helicopter for a long time before it shut it self....

I've tried the battery calibration process but it still the same, or I have something missed, what should I do, any ideas?
[Galaxy Note 8.0 (Tablet) General] duyminhphan:
Time screen on about 5-6 h. I use in 1 day befor rechange
[Galaxy Note 8.0 (Tablet) General] intelliriffer:
check your cable,

There is an app on these forums as well as google play store called galaxy charging current. note down the current you are getting in it.

with oem cable mine started acting strange with levels varying between 1200-600 ,usually sticking at 900 ma.

I used a microusb cable from some another phone (likely nokia) and with it getting a constant 1800 ma and much better charging cycles.

I got another samsung oem cable used for p1000 tablet and strangely it is also gives varying and low charging current, likely due to its length.
[Galaxy Note 8.0 (Tablet) General] lucasho2312:
Reviews use the word mediocre to describe the note 8 battery. I find it a little better than mediocre with 4 hr on screen
[Galaxy Note 8.0 (Tablet) General] samolove:
battery

My battery life is 50% 10 hours and 50 min

screen takes 70 % in 3 hours and 20 min !!

And i make brightness minimum for it

and make it auto for 2 hours but the brightness is the less thning

i make power saver on and turn wifi on for 2:30 hours

I have problem with my battery ???

And if i have how to fix

P.s : i buy the note 8.0 from 3 days ago ..
[Galaxy Note 8.0 (Tablet) General] mbze430:
I have two note 8.0 One I run CM10.2 and the other Rooted 4.2.2 Civato's ROM.

on my CM10.2 I get close to 5.5hrs of usage (screen on)... but I run GreenPower premium + Greenify Donate. When I go to sleep Green Power puts it in to super power saving mode. 8 hrs of sleep it only lose about 1%

on my Civato's 4.2.2 ROM I get about 4.75hrs of usage (screen on) also running Green Power Premium + Greenify Donate. HOWEVER! it loses more power during the same 8hrs of sleep about 5%-7%

although I think I might get better battery if I don't have GrooveIP running during the day with WIFI on the whole time....
[Galaxy Note 8.0 (Tablet) General] bryanblue24:
Is civato rom the best custom rom for galaxy note? And I thought there are spen bugs with 4.2.2? Can you suggest a stable rom with superb battery life? Ill be using my note for pdf reading and taking down notes in school. Thanks!
[Galaxy Note 8.0 (Tablet) General] Williamharv:
Here's my battery usage, pretty happy with it so far. Don't really use it much as seen per the screen usage but off screen seems great

Running stock GT-N5110
[Galaxy Note 8.0 (Tablet) General] madsquabbles:
one reason that most reviews suck when it comes to testing battery life is because they always say they set at x%. percentages actual light output and power draw vary from device to device. 50% brightness on an ipad isn't 50% of the light output, it's just barely double the lowest output where on many android tablets it seems 50% is half the highest setting. and each device has different high values. where apple is outputting 167 lux the samsung could be doing 224lux.

one of the only sites that actually measures battery life at a specific value was notebook check and some korean site that i can't recall anymore. everyone else sets it at a percent, which makes no sense to me.
[Galaxy Note 8.0 (Tablet) General] Mintymouse:
The battery on my Note 8 just suddenly dropped to point that it powered off on its own. Should I try to get it replaced (I'm outside my return window at Staples)?
[Galaxy Note 8.0 (Tablet) General] bryanblue24:
Any method how to improve battery life? Custom kernel or custom rom any suggestions? I have newly purchased 5120 and the battery seems to be disappointing. I tried to play injustice it worked flawlessly but it consumes too much battery 35% for just 2 battles, brightness at lowest.