yashsingh1/xdaforums huggingface dataset:
[One (M8) General] th3:
Includes 1 hour of Fifa 15...

Gosh, I wish it was multiplayer. I'm ready for a challenge [emoji13]

1 hour playing took 15% battery.

(Autobrightness was set to the lowest)

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[One (M8) General] TempestZ:
Wut. How? What are you using?
[One (M8) General] th3:
Repeated with Autobrightness set to the highest, 22m calling, 1hr 4G, 1hr Fifa 15.. but this time, the standby mediaserver drain was back [emoji20]

Still 9hr active and 7hr SOT

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[One (M8) General] Bobbi lim:
Turn off 4g and use 3g. And turn off background data for apps you don't need. And check whether your phone has been disconnected to your carrier very often
[One (M8) General] Callliope:
How i turn off background data for some apps? I know how to do it only for all
[One (M8) General] Bobbi lim:
Settings > data usage > click on the app that you want to turn off background data for. (Eg whatsapp) so click on whatsapp, scroll down that page and there's a toggle to turn off background data usage :)
[One (M8) General] th3:
I didn't know that [emoji5]

You can never know enough!

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[One (M8) General] Bobbi lim:
You're welcome :)
[One (M8) General] Callliope:
I restricted data to Facebook, snapchat, Instagram, maps, play store, i let messenger and whatsapp

Will give feedback in a couple of days
[One (M8) General] rawenkoye:
battery drains to 95% in just 5 hour of standby

first of all my phone is 3 months old and I found the solution for this problem you can skip this and read only the solution part if you want to :D

So if you have this problem like me when ever i woke up in the morning and I find that my battery has dropped to 95 percent even though I turned off My wifi and location services and there is no any apps running in the background :eek: (and if you wondering i sleep around 7 to 8 hours)

so i was very annoyed about this problem because when I was on the KItkat version my phone usually dropped 1 or 2 percent of battery,,,, so i said may be if i tried rooting my phone and install custom roms that may help me to solve my problem BUT NOOO....

I tried every rom which is available :laugh::laugh: but again the same thing happened again :eek:

and around these couple of days i saw a thread which it was talking about battery calibration which it help to solve some battery issues and i tried that too but again with no success :(:(:(:(

The solution

1- first shut down your phone and then press the volume up and down keys with power button at the same time(simultaneously) for 2 mintues and this makes your phone restart couple of times which its normal......

2-for my phone it takes about 2 and a half hour to charge my battery from 0 - 100 % and the important part of the solution is that when your phone charges to (100 %) do not unplugged it from the charger, let it charge for a half hour more :cool:

hopefully this works with you too as it has worked for me :laugh::laugh::laugh::laugh::laugh:​
[One (M8) General] navid0308:
that looks good! :D

btw, htc suggests doing this once a month, it resets the battery recharge cycle or sth like that...
[One (M8) General] Callliope:
i Will do this trick , 2 minutes of helding buttons on stopwatch :D
[One (M8) General] rawenkoye:
yes that's correct the support staff of htc give this advise all the time :)

hopefully it will make your battery standby time better :)
[One (M8) General] M8 killer:
Dont know about this but ill tell you guys what worked for me.Flashing a custom rom worked.In my case it was viperonem8 but another one like arhd should technically do it.Hope this helps:)
[One (M8) General] Callliope:
Can t get past 5H of SOT on lollipop...

Just by enabling powerdave mode
[One (M8) General] xsardax:
Hate APP USAGE. On M7 Lollipop, stock, nonrooted, APP USAGE is 34-40%. In my case, M8 Lollipop, stock, non rooted, it goes from 65-75%!?! 1-2%/h DRAIN in standby! I have tried everything, there were some success, but lasted shortly. I need new update.
[One (M8) General] :
Have you posted screen shots so people might be able to help? I doubt any update will cure your issue. [emoji4]
[One (M8) General] Imotep95:
SkyDragon sense 7 and SD 3.1.6 kernel

All day on Whatsapp, fb and at the end of the day i watched Interstellar online 1080p.
[One (M8) General] mahdibassam:
A normal human being who uses their smartphone normally with wifi and data and normal brightness and etc with all the apps we humans use on a daily basis, simply can not get an an average screen on time of higher than 3 or 4 hours max. And I am happy with that.

Sure, we can use our HTC one m8 like a piece of brick from the Nokia flip phone days by turning off wifi and data, brightness set to 0.0000001%, with three apps installed in total. That would give us Nokia 3310 battery life. But is that really how you would want to use your phone in the year 2015?

To me, it's simple. I try to get as much battery as I can but without stepping into crazy territory and doing the things I just mentioned. I like to enjoy the beautiful screen and enjoy the other functions. And if I have to plug in my phone for 30 minutes some time during the day to get some extra battery, then I will.
[One (M8) General] navid0308:
I can't get high sot either like these screenshots I see but what I do get is a longer overall time off charge

Most of the posts with high sot, the phone is dead before 24 hours

I think you are right. I use a lot of social apps with auto sync and I have an iPad for gaming

So I'm happy with how my phone performs

Only thing I don't like about my phones battery life is Google play services drain during standby, always 1-2% per hour
[One (M8) General] Callliope:
I'm happy with my 4H and 30 mins of SOT per day at my usage, but we upgraded to 5.0 for some features like Project Volta, but it seems that 4.4 was better

Just look what keeps my phone awake.. And in gsam kernel shows 20% used of battery, highest usage of all apps

I bet the vast majority is fine with m8 battery, but not why more?

Maybe Sense 7 update will make things right
[One (M8) General] th3:
A normal individual with everything working as normal can easily get a consistent 6 hours SOT if he/she knows anything about smartphones.

The ones who can't are those that treat their smartphone like a dumb 7110.

80% Outdoor manual brightness, Autorotate, only 3G/4G, GPS Navigation for the full time, Bluetooth, and all using Google Voice. All volumes on max.

What you're saying has been debunked too many times now. It's getting tiring [emoji19]

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[One (M8) General] Callliope:
I know something about smartphones too , but without root/unblocked bl , your hands are tied, Kernel usage too damn high on stock lollipop , end of story..
[One (M8) General] TempestZ:
Can someone help me get rid of this wakelock? Location is off and I disabled location and keep awake of Google Services in App Ops but that doesn't seem to do much. I hope there is a way without me installing Xposed cause it breaks Motion Launch if I install it
[One (M8) General] th3:
Stock Lolliflop... Is bad.

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[One (M8) General] high_voltage:
Actually the green led always comes before the battery is fully charged. It continue to charge for 30-40mins before full and stop the charging on hardware level. :)

I noticed that on lollipop it comes earlier than on kitkat = phone charge slower and the green light lit as same as before. Something to keep in mind as it adds up to the other drain issues.

---------- Post added at 01:06 AM ---------- Previous post was at 12:58 AM ----------

Sadly it's just that... kitkat on stock easy 7:00+ SOT with 20h on battery and somewhat heavy usage(autobrightness on max slider, facebook, messenger, chrome, youtube, twitch stream, viber, around a hour listening to music, few calls and whatnot.. sometimes even little gaming). I constantly got 7:30h and now I struggle to get 6:30 with lighter usage and tweaking.... saddddd. The only way to go back to old battery life at the moment is rooting/custom rom/custom kernel. I wonder if it's coincidence how the update downgraded in some ways our M8+didn't bring sense 7... and that just before m9 release. :/
[One (M8) General] :
Reading back a bit... 3 to 4 hours SOT is not normal at all I'd say. It's far below the average. Unless your gaming a lot. Or navigating.

I'd say you have issues that you haven't discovered or haven't solved yet if that's the case.
[One (M8) General] Nokiacrazi:
My phone signal is always poor (radio signal). Normally stuck on 1 or 2 bars. I guess this is sapping my idle drain considerably. What can I do? Tried flashing some radios, but didn't appear to change much.
[One (M8) General] :
The best thing to do, if WiFi isn't available, is toggle off data. You'll still get calls and texts... But you'll have to toggle it on when needed and off again.

That should help considerably. But then, keep an eye open for nasty wakelocks from poorly designed apps spamming for a data signal.

A pain, but all you can do besides airplane mode.
[One (M8) General] navid0308:
Settings > data usage > top right corner menu button > restrict background data
[One (M8) General] alhadee12:
I don't think my battery life is getting any better. Are there any suggestions?
[One (M8) General] Pyrres:
I had same kind of battery usage when some software was stuck. Normal reboot restored mine to normal.
[One (M8) General] alhadee12:
Normal reboot, is that different from factory reset?
[One (M8) General] Pyrres:
I just turned my phone off and on again. It sorted my problem. Some Htc update was apparently stuck and kept phone awake or partially awake.
[One (M8) General] alhadee12:
I'll try it and see what happens. At this point that's the only thing bothering me about this phone. I have a Flex and I've gone almost three days without a charge.
[One (M8) General] Cryosx:
Maybe turning off fastboot under Settings -> Power -> Fastboot and then restarting.
[One (M8) General] l1ttl3z:
Was on my phone a lot doin tweeks and playing games... I think my battery is doing pretty good
[One (M8) General] Traceamount:
So this is after 3 charge cycles, when I got it, I let it charge to full while off - let it turn itself off at 1% and charged to 100% while off 3 times. I had screen brightness at 80%, on WiFi for the vast majority with LTE signal otherwise, power saving mode on with all 4 boxes checked. Was fairly light use, atleast 1 hour a day on voice (2 half hour phone calls every day), 20+ texts a day, couple minutes a day to check a few games (briefly for sake of the battery), Facebook for a couple minutes a day to check notifications (again, just to see). Gestures and the motion launch were on (I should of turned off), Blink feed was also active, however auto sync and GPS were both off with a few exceptions (used gps for maps 2-3 times). Also took progressive screen shots of the battery every 8-12 hours or so.

Wasn't using Gsam and didn't have anything extra "running" just the stock, non rooted software. I get this isn't to be expected on "normal" use, but its possible.
[One (M8) General] O-2-L:
Thats pretty good,

Was that just normal power saver mode or the extreme?
[One (M8) General] Traceamount:
Just power saver. It's from Sprint - not sure if theres an option for "extreme" (on mine). I looked where it was supposed to be, nothing.
[One (M8) General] cheno1115:
I am in the same boat as you. Anyone find a fix for the high kernel usage? Reboot didn't fix it. Fast boot off. Motion Gestures off.
[One (M8) General] alhadee12:
I've tried the same thing, I'm going too see what it looks like after work today.
[One (M8) General] cheno1115:
Just off the charger this morning for 2 hours, still high kernel use. But let me know if those work for you.

Also, has anyone noticed improved battery usage with the OTA update? I don't have it yet...
[One (M8) General] alhadee12:
I didn't receive the OTA, turned off Fastboot the other day and left the motion sensor on.

---------- Post added at 11:38 AM ---------- Previous post was at 11:36 AM ----------

These are my stats today.
[One (M8) General] cheno1115:
Here's mine. Kinda disappointing so far.
[One (M8) General] kEvinErd:
Was previously using a Note 3 and had high Android OS kernel drain too... This issue was brought up quite a few times on xda the last I know. Maybe you could try to search in Note 3 thread to find if a fix was ever found?

Just throwing in a random guess, could it be due to poor cell signal? When the cell signal is poor, where/what does the drain appear under in the battery app?
[One (M8) General] cheno1115:
Looks like the agreed solution for high kernel usage on the note 3 was to flash a new kernel. Now that S-OFF for the m8 was just achieved, I guess that's viable, but a last-resort option for me right now.

Signal quality is 2-3 bars this morning, not sure if that would account for high kernel usage. I believe signal search power is sorted under "phone radio" in GSAM. Not positive however.
[One (M8) General] slybeans:
Very pleased with the battery life as you can see!
[One (M8) General] cheno1115:
Did you do anything specific to achieve that battery life? Were you in power savings mode? Fast boot off? Motion gestures off?

This phone would be just that much better if I could lower my kernel usage somehow...
[One (M8) General] slybeans:
I have those power saving tools off and motion gesture/fast boot on.

Perhaps you have an app causing all this?
[One (M8) General] navid0308:
Has anyone yet found a solution to gp services drain?

9.5 hours, less than 5 mins SOT
[One (M8) General] Nokiacrazi:
I should have clarified that it's not the WiFi or mobile data. It's the actual network radio signal that's weak like 120dBm
[One (M8) General] pejakovic1:
Really bad battery life here. I'm on latest viper and elemx set on stock cooler option. By bad i mean really bad, here is a screenshot and keep in mind i have been listening to music for about an hour and a half... 12 minutes of wakelock is coming from music app. I denied keep awake to play services etc... A change of rom should be in order?
[One (M8) General] edios123:
Can you please share your setup here?
[One (M8) General] th3:
I don't have a fixed setup [emoji4]

In those screenshots:

Stock Lollipop, rooted S-OFF

Autobrightness 50%

Autorotate on

Bluetooth on

GPS on High accuracy

3G/4G auto

Data on when WiFi off

Data Sleep on when not in use

Background Data on for +100 apps

Auyosync On (53 email/stock/social accounts)

No Fb or Twitter (but I read tw)

Such apps disabled

459 apps installed (lol)

Greenify and DS Battery Saver (aggressive)

Themer Launcher and Themes

Power Saver on at 15% auto

Extreme Power Saver on at 5%

Screen Timeout 1min

Sounds all max

Google Now enabled and on voice all the time

Who's Calling? Voice enabled

No LED enabled

Copy Bubble enabled

Kids Mode enabled

Missed anything?

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[One (M8) General] edios123:
Wow, such an exact reply. :)

Stock ROM. Uhm, I've tried two ROMs, Bad Boyz Sense 7 and SD sense 6. Both give same battery life. Though I ran only for a day, because it's only a few days since I got my phone.

Gives me less than 5hrs SOT and that's really low to my liking. And seeing your and some other's screen shots of over 7.5hrs SOT, I'm jelly lol.

Also, since I've only a 512kbps Internet connection, it's hard to download ROMs and try them :(
[One (M8) General] Bobbi lim:
First, I'm not flaming any ROM or anything. It's my experience here. Battery life on Viper isn't something that is amazing. Try other ROM, they give you good battery life. Check your apps, might be causing some issues. And clean up your SD card. Preferably, backup your pictures etc and format your internal and external storage and install other ROM :)
[One (M8) General] pejakovic1:
Oh I'm quite aware of what you're saying, battery life on ViperROM sucks unfortunately, must be because of patched framework or something. When i went to leedroid i got 7 hours minimum with 2 day uptime and usage for music and social networking. I went back to Viper because of the reason anyone comes back to Viper, awesome themes and tweaks. Now with sense 7 I'm guessing themes won't be a problem so I'm headed to IC to try some battery life love.

Edit: I don't use the SD card.
[One (M8) General] edios123:
Thanks for the info. I was going to download ViperOne.

How's SkyDragon v4? Seems to be good!

Edit: Please report here about the battery life after trying Insert Coin (as you said, you were going to try that).
[One (M8) General] th3:
You're welcome :)

I've never tried non-stock with M9... I've never needed to xD

I think you should stick to stock first and work with it... Just my opinion. Tweaking, testing... Once you have a good install there, efficient, you could move on, with it as your backup.

Eliminates everything other that's changed in software causing any clashes.

RIP KitKat! [emoji20]

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[One (M8) General] pejakovic1:
Never tried sd rom. Im sure most of the sense 6 roms out there are good. I have only tested viper and leedroid on sense 6. Will need a full charge to tell you about ic.
[One (M8) General] Shan89:
Here's my average IC battery life.

This was mainly reading tapatalk, social apps ( twiter, fb, whatsapp, viber and such ) some web browsing, ton of mails ( signed to 6 tapatalk forums + other stuff ), some IPTV via online watching.

Brightness between 25-50%

Here's the end result:

Played mc 5, some fruit ninja, raped camera + all from above and some viber talking.

Brightness: average 75-100%

Powersaver always off until it got on by itself.

Without games and all from above with average brightness of 25-50% I get something like this. ( btw this last SS is from LeeDroid Rom 1st charge, pretty much the same battery life as with IC )
[One (M8) General] shawnsingh:
My battery life is about 12 hours with probably moderate use. Play games here and there and YouTube. Music to. I have the galaxy s4 which is rooted and running a battery save app which requires root it should work for most of Android phones.
[One (M8) General] shawnsingh:
So far my phone has been on for 13 hours.
[One (M8) General] Bobbi lim:
I won't judge for battery life on Leedroid as well as InsertCoin and it's better for me not to comment as the war going on between SD and them is terrible. You'll think that I will sure tell you to flash SD cos that's the best. But honestly, each ROM fits different people different. Usages etc accounts for a lot. Just enjoy yourself in the community ^^

Not flashing any ROM as I'm in love with my own GPE build. 2hrs on mobile data and I haven't even lost 1% yet ???
[One (M8) General] tonyafc:
My battery was good for at least 2months but recently being getting really high wakelock from android os and today a new one android system (adsprpcd) audio on i have screen shot of android os wakelock has anyone else experienced any of tgese and are there any fixes?
[One (M8) General] 0kk0:
Here's my result on htc m8 GPE twrp flashable rom. Stock kernel and normal usage... watched videos and played music.
[One (M8) General] Bobbi lim:
Enable developer options in settings and turn off nuplayer :o

---------- Post added at 07:33 PM ---------- Previous post was at 07:32 PM ----------

That's 4.4 KK GPE? What ROM is that?
[One (M8) General] tonyafc:
I did read that and that has stopped the android system (adsprpcd) but my biggest problem is android os wakelock in my screenshot its constant everyday
[One (M8) General] Callliope:
I have android os and kernel wakelocks since i upgraded to 5.0 Lollipop OVERPOWERED
[One (M8) General] tonyafc:
Is it possible to get a get screenshot of your android os and system opened in gsam so i can see if there are similarities to me because i never had these issues before lollipop either
[One (M8) General] tonyafc:
Do you have xposed installed? Mine is slightly different from your what are your android system usage details? I have high acclremoter, light and proximity usage
[One (M8) General] Callliope:
I m stock unrooted
[One (M8) General] TempestZ:
Did some tests and it seem it's easy to get 8-9 hours if you don't use browsers alot (in my case I get only 5 hours of full screen+browsing non stop with chrome), but since apps like tapatalk exists that can be alleviated as those app don't use that much battery like chrome let's say. Also I tried to find a browser that uses less battery but they all use the same after aroun 30 minutes of browsing with each.
[One (M8) General] edios123:
That battery life! :o

Hope 5.1 will bring it back.

I tried the Sense 6 SD, the battery life isn't good. Maybe it's my device. Also since he has stopped developing for Sprint, I won't be moving into it again.

Running LeeDroid now, seems better. Please do tell me which one gives the best battery life. I can't test every ROM due to my crappy Internet connection. :p

So I guess it's LeeDroid for me. InsertCoin doesn't have the latest version for Sprint I guess.

Any reason why you prefer IC over LD?

To my understanding, Chrome draws too much battery power. I just got to know this, after using it for like more than 2 years. I love Chrome for its simplicity. :(
[One (M8) General] TempestZ:
That is the general consensus yes but I didn't notice a too big difference from other browsers. The battery drain doesn't come from the app itself, but from the CPU power that is required to load pages, images, flash (this one eats the most I think). Take a browser, stop image loading and accept only text and your browsing time will improve. I use Chrome Beta and the interface and speed is worth it imo. But I would like more options
[One (M8) General] th3:
Dealing with Android OS locks;

Really need root for it, and other apps like wakelock detector and better battery stats. As those could be power manager or connectivity service partial wakelocks.

Disable OTA checking and remove all files from your SD, clear cache and dalvik and then move the files back. Then restart the phone.

Check your network reception is good in GSAM Stats.

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[One (M8) General] Shan89:
[MENTION=4682977]edios123[/MENTION]

No particular reason, I'm just used on IC and it's little tweaks + I've been using it most of the time on my HoX and m7.
[One (M8) General] TempestZ:
I used DisableService to kill the proceses that causes wakelocks. Wakelocks still happen but they are so small now that they are insignificant. Most wakelocks happen because my usage (messenger etc) now. Bad thing is you need to reapply them every time you boot but you can back them up and just restore them (at least most of them). Just don't kill anything important. That data is actually from around 85%
[One (M8) General] Bobbi lim:
Chrome was built for seamless web browsing, in others words, a "perfect experience" . But of course, that is at the expense of your battery.

Why? To provide that experience, things must be smooth thus CPU is running at full speed to deliver that results which results in higher battery drain.

My suggestion is this, either use a AOSP browser from CM or somewhere or use HTC stock browser. Both works fine but battery drain isn't that high, I can vouch for it :p

---------- Post added at 08:48 AM ---------- Previous post was at 08:47 AM ----------

I do have 1 way to deal with google services though, and that's disabling them :p
[One (M8) General] th3:
Click through the CPU icon at the top, choosing CPU wakelocks and Kernel wakelocks to give you more details.

Please realise guys, some wakelocks are essential, they are part of a perfectly running Android.

But what I'm concerned about is pure efficiency: you do whatever you want, and still maintain good battery life.

We guys who get good runtimes never want to mislead... Even I do get 5.5-7 hour SOT and 7-8 hour runtimes. But that is only under constant heaviest usage. And I mean full whack gaming with everything enabled/highest.You literally sit there and do nothing except the smartphone.

It runs the GPU shaders and acceleration units at full too, and that's major power draw.