yashsingh1/xdaforums huggingface dataset:
[One (M8) General] Young Cardiac:
To the guys getting the 7-7.5 hour screen time, what Rom and kernel combinations are you guys using?
[One (M8) General] :
Any rom. Any kernel. It's all setup and usage patterns. And signal strength.

Roms and kernels play a minor role in battery life at best.

Use what you want. ;)

To answer you specifically... I'm now on viper.... I've flashed a few others only, and I've used stock of course. Get 7 plus hours screen time on all of them.
[One (M8) General] eternal_inertia:
Mine's still doing my head in, I cannot fathom why my phone is awake all the time. I don't have anything running, it's always the OS or Kernel that's the highest app consumer. I don't have anything syncing automatically anymore and location, BT and WiFi are all off when out of range. What is going on?

Can't wait to upgrade again and go back to iPhone, this is stressing me out!
[One (M8) General] th3:
I wish we could swap phones for a bit... I'd debug yours to the T [emoji13]

If app usage and system usage is low, Android system and kernel will be highest, logically. It shouldn't affect your overall SOT you know.

Like ->

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[One (M8) General] eternal_inertia:
My SOT is pitiful, I hardly touch my phone at work but it's awake all the time. I just don't get it!
[One (M8) General] th3:
Go into the Battery Usage>Screen Off section of Settings, what does it show for highest battery usage apps and on clicking them, their awake times? Which has the most awake?

Like this ->

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[One (M8) General] :
Are you rooted? Really need to see your times waking device and time held awake screens from gsam. Otherwise you will get a pile of guesses as help. ?
[One (M8) General] eternal_inertia:
No I'm not rooted anymore but think I'll have to be to find out what's going on with it.

I've just got home and back to WiFi and my battery is lasting a lot longer. I think the signal is so bad at work that it's the OS keeping it awake all the time when I'm at work

Don't really want to put it into airplane mode all day at my desk, would switching the network to GSM only help, rather than trying to find 4G all the time?

I've been home for 2 hours now, charged in the car and this the system is highest screen off culprit, kept awake for 40 mins out of 2 hours - surely that can't be right?

The other apps are miniscule, less than 1 minute awake time, it's always the OS that's highest. Could it just be such a bad signal? I never really get full signal anywhere but centre of Manchester outside, my house and the office are both black spots.
[One (M8) General] :
Ah! Yes, a bad signal while on data is about the worst drain you can get on a phone. The best 2 options to combat it are.... Simply disable data. You'll still get calls and texts, when the signal allows... But that's it. Turn on data ONLY when you need it, then immediately off.

Obviously the second option is get on WiFi. ?

No need for airplane mode usually... Just turn data off. All those apps looking for a decent data signal destroy your battery trying.

Location off is best too. Especially on a weak signal.

As far as your awake time... That probably includes the driving? While charging. The phone is always awake when charging. Usually anyway.
[One (M8) General] stanley08:
Google and Install this version of BBM v2.1.1.53 that is the one I'm still using. Wayyy less wakelocks. Cheers! :)
[One (M8) General] th3:
That much awake time by OS kernel under 20hr usage is way OTT. Somethings not right obviously.

You can try with the signal, but if that was the case that would show under Screen Off as Cell Standby or something similar. Plus it won't keep your phone awake. Yours is the OS and that's kernel level rather than services or signal processor.

You can of course try a lower power signal using *#*#4636#*#* under Phone Information, changing it to GSM Only for a working day and comparing the difference.

Sent using Tapatalk
[One (M8) General] eternal_inertia:
I know, it's terrible and I haven't got anything (knowingly) running!

I'm gonna give up soon and just deal with it, I have a charger in the car, at work and at home so will just have to keep it charging all the time and cope with 12 hours on battery.
[One (M8) General] Drowzz:
Or go for a custom rom :)
[One (M8) General] mushages:
yesterday i got BBM update and till now it looks kinda fine not so much wakelocks but i didnt use it much since the update will see how it goes today
[One (M8) General] stanley08:
Yes mate! I did that update too. Wakelocks reduced. I'm still watching it tho... :)
[One (M8) General] eternal_inertia:
I did have Viper but I didn't like it so went back to stock. I'll just deal with it until next year and then go back to iPhone I think.
[One (M8) General] th3:
Lol?

If you're doing everything as you said, then you can complain to your provider about giving you a replacement.

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[One (M8) General] drewlim:
Heres mine heavy usage facebook youtube chrome etc.... App usage says it all. Stock not rooted no power saving. This thing is a beast!!!

Sent from my HTC_M8x
[One (M8) General] racingmatt1:
What are your other settings (location ,brightness etc...)?
[One (M8) General] drewlim:
Location on battery saving mode. Syncs on with 3 email imap accounts using stock mail app and 1 yahoo mail using yahoo app. Brightness auto at 50% slider

Sent from my HTC_M8x
[One (M8) General] racingmatt1:
I have a few more questions. I'll add-on more questions to this post when I think of them.

1. Do you leave your mobile data on all the time when away/in range of WiFi?

2. Do you think I can achieve these same results as you on a m7?

3.how do I set the brightness slider to 50% while on auto brightness? Also does it make the battery last longer since I think it will only let the auto brightness go up to 50% max?

4. Do you ever use extreme power saving mode?

5. Are you using Google Now? If so do you have both location reporting and history enabled?
[One (M8) General] drewlim:
1. I have data on all the time. Heres what I have on advance wifi settings.

2. I dont know.

3. There is a slider when u set it to auto. 50% is the default and when you set it higher it will give it a boost if auto brightness default is too dark for ur liking. That goes to lower setting as well... reducing brightness of default auto setting. Afaik that is how it works. Someone correct me if im wrong.

4. Power saving automatically went on at around 25% or 20% cant remember but I disabled it right away for the sake of my test. Extreme was set to 10% but again disabled it for the test.

5. Yes and yes

Sent from my HTC_M8x
[One (M8) General] Drowzz:
M7? No way haha
[One (M8) General] anjaan:
My M8 is awake all the time. Any ideas as to why? and for guys who dont have such high awake time, what optimum settings are you guys on?

I am on stock non root. Use nova launcher and google now on. dont use google+ and as far as i know my major sync apps are email and whatsapp.

Initially (read 1st week of using the phone) I didnt have the problem with my phone sleeping automatically in the night and wifi would show off during this sleep time. My GSM graph would have a pretty horizontal line during this sleep time. But these days I do not get that kind of graph at all. Any help with what I have got wrong? and how do i rectify without rooting?

Cheers
[One (M8) General] racingmatt1:
What do you mean by no way

---------- Post added at 09:03 AM ---------- Previous post was at 09:02 AM ----------

When I turn on auto brightness on my m7 it goes to 100% brightness
[One (M8) General] Drowzz:
Because the battery in m7 is way worse than in the m8
[One (M8) General] racingmatt1:
Then what can I get away with having turned on and have decent battery life?
[One (M8) General] Drowzz:
Buy the m8?:p
[One (M8) General] :
See post 2 in the Battery thread in my signature. It pretty much applies to any device. ?
[One (M8) General] :
Holy moly! Almost half way through my charge....
[One (M8) General] neecey18:
What ROM and kernel are you using ??
[One (M8) General] :
Rom, any. Kernel, any.

It's all about setup and usage. ?
[One (M8) General] racingmatt1:
In the part about location draining battery, is it location history,reporting or both that drain the battery the most when using Google now?
[One (M8) General] :
Both. The more "options" you can live without, the less issues you'll have... Not that everyone has issues, but many do.

Location on, vs off is the biggest difference. If you need it on, try with those off... And in device only. That's your best battery setup.
[One (M8) General] erapmicks:
That GPS location proovider is annoying me seriously. I disable everything on my disable list that says geo and location. I have turned off location. Everything but it's still there. [MENTION=4036181]KJ[/MENTION] any help?
[One (M8) General] jamiee6610:
When i first got the phone i could manage 30-40 hours off 1 charge, now 2 'updates' on and im lucky to get 12 hours?

Im using stock rom, HTC cant provide an answer either?
[One (M8) General] enel_:
-10% battery but with +1 hour of SOT ?
[One (M8) General] th3:
I've been testing, and Google Now from any screen really eats your battery. As does the v4a high quality driver, completely kills it.

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[One (M8) General] n1234d:
And the medium quality driver?
[One (M8) General] th3:
Idk, not tried it.

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[One (M8) General] Last Second:
Well then tell me please more.

I just could dream about such a DOT, this is the time I get after 75% of my charge and I am mainly just surfing/watching videos/whatsapping
[One (M8) General] :
Everything I do is in the first couple posts in the Battery thread in my signature. I run lean . And toggle features when I need them. ?

---------- Post added at 09:53 AM ---------- Previous post was at 09:51 AM ----------

Yup, haven't tried it on my M8,and won't..... But on my N5 it was very bad too. Cost me well over an hour of screen time. Or more. And that's with barely using it... Just with it on.

---------- Post added at 09:54 AM ---------- Previous post was at 09:53 AM ----------

Something is waking it... But not a lot, I'd ignore it.
[One (M8) General] erapmicks:
Can I know what/how many did you disable on your Google play services?
[One (M8) General] :
Post 3 in that thread is mostly for people having issues related to Google. I've never had those issues.

I think with location off, those issues don't pop up. If someone really wants location on, then post 3 is great stuff.

But yeah, I've not touched Play Services.
[One (M8) General] vRS Carl:
Just to back up that you can indeed get great battery life. This is mine so far today.

---------- Post added at 06:38 PM ---------- Previous post was at 06:34 PM ----------

No idea why its saying I've used 10% less than the graphic or the phone. Still doing it now.
[One (M8) General] B.K.Q:
What Rom and kernel you are running on ?
[One (M8) General] mtva24:
and im getting 3 hours with 15% left...please share your technique my friend
[One (M8) General] Clipboards:
I'm getting pretty decent battery life with the M8. On weekends when I don't really use it for much more than games every now and then I can easily get to the end of the day with somewhere around 50%.

On days where i'm out of the house and constantly using data, camera and music I'll end the day with somewhere below 20.

Battery life has been suprisingly good and no complaints here. Only thing I miss from my Galaxy S3 was the removeable battery and battery life that would last a weekend..
[One (M8) General] Heisenberg420:
What ROM are u using
[One (M8) General] enel_:
ARHD + elementalX 1.03

But believe me, it's not about the rom or kernel it's about the setup of your phone and your apps that you use.

A week ago I had terrible battery life because an unknown app drained my battery a lot.
[One (M8) General] vRS Carl:
Stock Kernel and ARHD 11.1 but I could get the same when stock. The kernel doesn't make a difference in my experience.

I just toggle mobile data and location on and off as when required. So when on wifi I switch of mobile data. When I don't need to use location services I switch it off.

I use faceache and tw@tter as well as text, call and whatsapp. The odd game here and there and tapatalk.

On average I get around 7hrs SOT during the week as 3/4G canes the battery. At weekends in get around 9-10hrs SOT as I use the HTC as my work phone so I don't generally receive calls at the weekend and I use the Wifi at home.

I also use a brightness slider app and keep the brightness as low as possible. But the biggest saving is switching off mobile data when not required. I still get calls and texts no problem.
[One (M8) General] Last Second:
So this is my last run without the recommendations ..

5h DOT for 80% battery... Disappointing.

Next time i'll turn off all hidden location services
[One (M8) General] enel_:
9-10 hrs of SOT? Wow, just wow. I can't get over 8 hrs.
[One (M8) General] vRS Carl:
Try switching off mobile data when you're on wifi and see how you get on.
[One (M8) General] :
Data is automatically off when WiFi is on.

No? How I've always understood it.
[One (M8) General] :
It should just work, doesn't require root. Sounds like a problem that root has causes with the app, or try wipe the data in the gsam in app settings and uninstall and reinstall. Should work as normal.
[One (M8) General] greyhulk:
Thanks. I did uninstall and reinstall and still no dice. Could it be that I'm not using pro? The basic version always worked fine before, but maybe it's different on Kitkat.
[One (M8) General] AndroidGuru332:
This is mine, so far v.good
[One (M8) General] OysterCatcheRR:
Have to say I'm absolutely delighted with the battery on this phone! Was only on wifi for a fraction of the day and still managed to get a solid 6 hours of screen on time with very heavy use and fluctuating network coverage. I had been waiting for the Z2, but so pleased I got the M8; it's a bit of a beast....
[One (M8) General] megarekd:
I have to say that battery life on this trumps the M7.

These stats are from fairly heavy usage, 1 hr gaming, few hours on Twitter/Facebook etc, general browsing of the net, phone calls and whatsapp/snapchat etc.

I'm running stock on 1.12 with maximum auto-brightness.

Couldn't be happier :D

P.s. posted now as I won't get the time later.
[One (M8) General] Tiann:
So far so good. Finding the battery life great compared to my M7. These are my stats so far. Spent 8 hours in the office with little signal and still got what I feel is good battery life.

Forgot to mention, this is having the screen at about 2/3's brightness.
[One (M8) General] Lord Morpheus:
After almost a week of having the M8, this is pretty much standard everyday... I use Lux to control Screen brightness.
[One (M8) General] gsusx:
still torn. im still badly scarred by the bad battery life on my m7. I loved that phone but the battery life left me pissed off most of the time.

i would honestly consider the m8 if the battery life was markedly better than the m7
[One (M8) General] -sandro-:
seems like it, i bet you won't be able to find stats with 6h of screen on data only. With my s4 (similar to the m7 in battery life) I couldn't do that with 2 batteries!
[One (M8) General] JesseMT4G:
Wonder how they get such good battery life out of only a 2600mah battery. I get amazing battery life on my G Flex, but also has a monster battery in it. (3500mah)

If not for wishy washy opinions on the camera and not sure if I can go smaller, I'd be all over this phone.
[One (M8) General] racingmatt1:
I have a m7 how do I setup lux?
[One (M8) General] italia0101:
Pretty close

http://xdaforums.com/showthread.php?p=51539849
[One (M8) General] Lord Morpheus:
Download and install Lux from Play Store

Set to 'Auto' and 'On wake'. simple as that!
[One (M8) General] racingmatt1:
will following those steps save me more battery than the native auto brightness setting? Also what do I change the native setting to so that way it doesn't interfere while using lux?
[One (M8) General] Lord Morpheus:
It worked brilliantly on my Sensation XE, saving power. I find it useful as it cuts down on eyestrain in dark rooms!
[One (M8) General] alhadee12:
These are my stats for today. I'm hoping to get better after using a Note 3 and Flex.

---------- Post added at 05:43 PM ---------- Previous post was at 05:39 PM ----------

Did you shut any apps down? What exactly did you do to get it?

---------- Post added at 05:45 PM ---------- Previous post was at 05:43 PM ----------

Did you shut any apps down?
[One (M8) General] mushages:
as i can see your apps drained 60% of the battery in 10 hours you may check what apps draining your battery and i advice you to download (wakelock detector) and see stats after draining a full charge to check what apps preventing your phone to go into deep sleep.
[One (M8) General] alhadee12:
It said Android OS.
[One (M8) General] Nokiacrazi:
I found with my m7 I had amazing battery life on 4.2 (4 to 6 hours SoT, or lasting 2 days easy with lighter use), but by 4.4.2 it was reduced to about 3 to 4 hours SoT with terrible standby.

My m8 is amazingly better. First day use, I powered it on at ~70%. At the end of the day I was looking for ways to kill it. I had set it all up, messed around with it a lot, watched litteraly hours of YouTube. By the end from 70% to 1% I had almost 7 hours on screen time.

2nd day (first charge cycle) it was quite average.. About 4 hours on screen but this was hardly any WiFi.

Today, equal WiFi/4g about 3 hours on screen over the 18 hours its been off the charger and I'm currently on 40%.

Sense is so well optimised it is amazing. I guess the 801 helps but to this level it has to be down to software.

TL;Dr I would buy the m8 from m7 just for battery bump.
[One (M8) General] ZeroRilix:
Nope, left it as it was. This is mine today. Keep in mind it was pulled off charge yesterday morning at 445 am

The battery life amazes me. Definitely better than my AT&T LG G2.

Sent from my HTC One_M8
[One (M8) General] scorror:
[MENTION=5613649]vRS Carl[/MENTION] please what settings are you using, I get above 7 hours SOT using [MENTION=4036181]KJ[/MENTION] settings. I need that 9-10 hours SOT.
[One (M8) General] vRS Carl:
As I said the only settings I have is Mobile Data off when not in use and location data off when not in use.

I use display brightness app to control the brightness manually and I Greenify apps that I don't use much so for example I have greenified:

BBC iPlayer

BBC news

Gmail (as I use Blue Mail app)

Google Play Music (I don't use it)

Google+ (don't use it)

Hangouts (don't use it)

Hot UK Deals

Maps

NATWEST

Sky Go

Sky News

Sky+

Snapchat

Trip Advisor

TuneIn Radio Pro

Twitter

That's it.

It all depends on what you do with the phone. I don't normally play games at home ( I do during the week when away from home). I take the phone off charge on a Saturday morning and I plug in again when I go to bed on a Sunday night at about 2-3% charge left with between 9-10hrs SOT. I will take a screenshot on Sunday night if I remember to show it.

Over the weekend I mainly browse the internet and send messages/whatsapp. Use faceache a bit and tapatalk. Take a few pics when out and about with my wife and son. I rarely take calls at the weekend as work generally don't call unless it's an emergency.

From my experience if the mobile data signal is fairly low (3bars or less) then the phone although not using data is still searching for a better data signal. I turned it off when on wifi and my battery use slowed down massively. Also I have location data switched off in the house or when out and about at the weekend on my HTC as when at home I know where I am and I have Satnav in the car to get around. I also only check emails etc when back on the wifi at home. Too often these days people feel the need to stay connected to work. I always tell my bosses and subordinates that if anything is unable to wait until Monday then call me. Otherwise don't email me until Monday and I'll deal with it then.

It really is down to usage pattern. If you use faceache a lot or watch videos on YouTube etc or at games a lot then your battery will go down faster. I think Deer Hunter is the only 3D taxing game I have. Tetris and Bejewelled Blitz aren't really that taxing on the system. Lol. But as said I don't play those much if at all at weekends.

I still have data and location off in the week. I just turn it on when required. But most of the time I tell work to phone me first as I prefer to talk either face to face or over the phone. People play far too much email tennis. If there is a requirement though, say they need to send me some PDF Docs then I switch data back on, download the email and docs and then switch back off once I've got it.
[One (M8) General] :
Yup! 100% this ^^

Usage is a huge factor. I go from 7 to 8 1/2 Sot... Just depends what I've been up to that day.

WiFi vs data can play a role too. For me, I always do much better on WiFi, I'm rarely in LTE areas.

Brightness of the screen I've found is huge on this phone too.

7 hours SoT seems pretty dang good to me.

Do nothing but read a book and I bet you get 10. Lol

?
[One (M8) General] Heisenberg420:
Usage is definitely the number 1 factor, but I've tried nearly every ROM out there and get different results on different ROMs. On viper, I won't come close to what I can get on arhd.

Kernel... Not so much a factor as it was back in the days of dual core chips but you can still come up with battery saving kernel settings to prolong your battery life.
[One (M8) General] th3:
- Time in hours

- SOT

- Usage (calls, apps or services running like Google Now)

- Screen Brightness / Location

- Notifications

The main factors in my usage time.

High usage -> low run time and SOT

High SOT -> low usage with power saving features and standby giving long runtime, or medium usage giving short runtime

As simple as that! [emoji4]

P = CV^2 governs all chip power draws

Sent using Tapatalk
[One (M8) General] racingmatt1:
Can anyone recommend a app that finds my WiFi when in range and turns off when I leave the location
[One (M8) General] :
Tasker. I don't know how though. I paid for it years ago, but never really used it. ?
[One (M8) General] CookieMonsterr:
Battery is excellent. Doesn't drain completely after 6 hours of continous use.
[One (M8) General] KotTHECat:
Without gaming up to 2 days! (ViperOneM8)
[One (M8) General] erapmicks:
---------- Post added at 09:54 AM ---------- Previous post was at 09:53 AM ----------

[/COLOR]

Something is waking it... But not a lot, I'd ignore it.[/QUOTE]

Hey, i uninstalled FB, and GPS location provider is gone. I ticked location off on my phone and on Facebook. Care to know why it pops up?

and do u have Facebook installed?

Thanks
[One (M8) General] racingmatt1:
Is it true that when looking at the HTC native battery graph the colored line showing mobile data means that the darker the color the more the battery has been drained by mobile data?
[One (M8) General] :
I believe darker means better signal... Lighter is worse.
[One (M8) General] racingmatt1:
Does anyone else know what it actually means?
[One (M8) General] :
Well, that's how it is on aosp. Dark green is good, and it gets lighter green, then yellow, then red for weaker.

The Sense battery screen really is poor. It says nothing useful.... Even worse than the aosp and stock Google battery screens.

Just compare it to the gsam chart for signal. The weak signal times in gsam likely match up with the lighter parts of the Sense bar.
[One (M8) General] Wh1t3Rose:
Just saw this post. I made you a profile. Import it in tasker. Copy to /Tasker/AutoImport. Just set up your network as you normally would in android. Then while at home open the profile in tasker and have it grab your location. Read the "Location without Tears" guide.

https://app.box.com/s/qhnsemu9pdcytnre9wia

#StayParanoid
[One (M8) General] racingmatt1:
When I went to the tasked folder on my phone using es file explorer I font have auto import
[One (M8) General] bill3508:
Auto bright reduced, manual sync, app oops customized, greenify, abyssplug/noop.

HTC One M8/CM11/Excalibur 0.5
[One (M8) General] Wh1t3Rose:
Then create it

#StayParanoid
[One (M8) General] nithingowda:
Mine

Powersaving mode off

played 1 hour game