Rooted G Flex-2 H955 is draining battery very fast. Any idea why? - LG G Flex 2

Hi,
Previously I successfully rooted LS966 and bricked while flashing ROM (Lesson Learnt) and paid a bomb to repair the motherboard.
I now have H955 - 15B. I successfully rooted the phone via online remote connect help, because I felt it would be cheaper than last time. After rooting,
Debloated mostly all google Bloatware and few system apps based on a list from another discussion on XDA,
Installed Pimp My CPU and reduced to 1230 Mhz
Doze to block background data traffic
Greenify to stop background processes.
This has been quite a versatile combination for me and the battery doesn't drop by even 1% until the screen is on.
Once the screen is on I am losing 1% of battery every 3 - 5 mins.
I am getting a Screen On Time of 3Hrs.45Mins only.
I have also read up on Battery Calibration issue and this is my second full charge - full discharge cycle.
But the battery percentages are still going down at the same speed.
My screen is drinking above 50% of my juice at 100% brightness. I tried to change that few times but it is more or less same.
Earlier it used to be around 15 to 30%. I am attaching current consumption picture.
While I am enjoying a good Stand By Time of upto 12 to 14 hrs, my Screen on Time is reduced to 3hrs 45Mins.
Is this normal?
Or I am missing something?
Is it the way ROM was flashed on old built before rooting because of soft brick while rooting?
Any indication will be of immense help. Many
Many Thanks.

Seems the way it should be. Changed my battery almost a week ago and I get maybe close to 4 hours of SOT, depends how you use your phone, I use it at 80% brightness though and standby time while it's just sitting on the table is days. :good: N.B. Using android 6.0.1, although it used to be pretty much the same on 5.1.1, maybe less standby time.
Also I'm pretty sure Pimp My CPU shouldn't be compatible with this phone because of the kernel and lockdowns. Maybe they've found some kind of loophole, doubt it though.
Also for the battery calibration, I fully discharge every month to 0% and then charge it to 100% while not using it and once it hits 100% it's good to go. Just the way I do it, not everyone does it the same.
Also, I never trust remote help of any kind, who knows what crap they might do, and even though I am an amateur at android rooting and flashing, I've done it myself every time cause I don't trust remote stuff.
And depending if you want root or not, you could use android 5.1.1 15c(although I don't know if the difference between 15b and 15c is that big) with root or android 6.0.1 20c without root. It's rather simple to root on 5.1.1 though, so many guides here, as long as you follow them to the letter.
You don't have to agree with what I've written here, it's just my opinion.

Azure Potato said:
Seems the way it should be. Changed my battery almost a week ago and I get maybe close to 4 hours of SOT, depends how you use your phone, I use it at 80% brightness though and standby time while it's just sitting on the table is days. :good: N.B. Using android 6.0.1, although it used to be pretty much the same on 5.1.1, maybe less standby time.
Also I'm pretty sure Pimp My CPU shouldn't be compatible with this phone because of the kernel and lockdowns. Maybe they've found some kind of loophole, doubt it though.
Also for the battery calibration, I fully discharge every month to 0% and then charge it to 100% while not using it and once it hits 100% it's good to go. Just the way I do it, not everyone does it the same.
You don't have to agree with what I've written here, it's just my opinion.
Click to expand...
Click to collapse
Are you sure you get close to 4Hrs of SOT on a brand new battery because I get 3 Hrs and 50 Mins or so but less than 4 Hrs on a phone which is 6 months old. Never changed the battery. If that is the case then I think I am doing alright. I have seen SOT Tests of phones like Pixel and One Plus T.
I dnt think pimp my ROM has any restrictions. It kind of works smoothly. It helps me cool down the hot CPU also. I have ovecome the dreaded overheating issues of G Flex 2 easily with clocking my CPU.
I have done the battery calibration. But it quite didn't help me.
I went paranoid because immediately after the root I started to observe the battery percentage on the top. And I felt its falling drastically. But on the other end my stand by time has gone upto 15 hrs. The battery doesn't drop even by a single percent until the screen is on. Once it is on it goes down drastically.

I think of the battery calibration as kind of a safeguard, it's not a necessity.
The pixel and oneplus are different beasts altogether.
Also, as your phone is only 6 months old then it's battery should be ok and as I stated before battery life depends how one uses their phone, I tend to play a few games here and there with 80% brightness and such so it takes a bit more on my end. I personally haven't seen over 4 hours of SOT with my phone ever since I've had it, but your mileage may vary.
As for the PIMP my CPU, if it works for you good, I personally moved over to 6.0.1. When I was changing my battery I removed the motherboard out of curiosity to see how the thermal pad is and only one edge was touching the frame, so I added some Arctic MX-4 thermal paste between the frame and thermal pad and the temps are surprisingly better now. Still tends to get hotter than it should but throttles a lot less now and the screen brightness doesn't forcibly drop below 80% now, even when gaming. It used to drop to 50% etc before when just browsing the web. Anyways, that's that.
It might be some background stuff eating your battery too if you had better battery life than you do now, or it might be because of the motherboard change. Unfortunately I'm not smart enough to say for sure. Also, the more you look at the battery percentage the worse it looks
Sincerely,
Azure Potato

Azure Potato said:
I think of the battery calibration as kind of a safeguard, it's not a necessity.
The pixel and oneplus are different beasts altogether.
Also, as your phone is only 6 months old then it's battery should be ok and as I stated before battery life depends how one uses their phone, I tend to play a few games here and there with 80% brightness and such so it takes a bit more on my end. I personally haven't seen over 4 hours of SOT with my phone ever since I've had it, but your mileage may vary.
Click to expand...
Click to collapse
Pixel is too expensive for me honestly and I am not really into expensive phones like iPhone or Pixel.
I am quite happy with G Flex 2's performance and I was only worried about SOT of 4 Hrs. I re calibrated battery and discharged and charged again 100% Thrice.
Somehow battery last over 15 hours after rooting. For example, its 3PM and I have 70% battery left even with SOT of 90 mins of movie. That is 1Hour30Mins.
And you're right, the more you look at battery. the more complicated it gets :laugh:
After rooting - Greenify + Pimp My ROM + Doze + Uninstall System Apps - combination is giving me 15 hrs of usage per day. It more or less includes phone calls, WiFi browsing, Network Data Browsing, Some videos and crazy amount of Twitter, all put together through out the day.
But I am still interested in SOT per single charge.

Interesting.... Same problem here
I'm on 20A, 6.0.1

You're sitting on about the expected SOT. I get anywhere from 4-5 hours and almost never take my brightness off 0%. I'm running a fully debloated 15c setup, same as yours except a version increment higher. The most intensive thing I do on here is install new apps, no gaming or anything. If you have the Facebook app, try switching to Facebook Lite which you can download off APK Mirror. Does everything the normal app does but without all the bloat, it's only a couple MB. Apart from all the tweaks you've already listed, there's not much else we can do. I've always wondered why screen takes the most battery usage by far, maybe it's just the screen type we have. Screen off is great, I lose less than 3% every night including background updates. Screen drains at about the same rate yours does.

Related

[Q] What is "normal" battery life?

I switched from an old WinMo 6.5 (Verizon Imagio) to G2x. Absolutely love it, except the battery life (there is backlight bleed too, but not too annoying).
But when I read thread here, seems my battery life is kind of okay?
1) Went to sleep at 1:20am. Phone had Gmail sync, Exchange sync every 15 minutes, News & Weather widget, and ScoreMobile widget. Checked battery at 5:40am, it was down 11%. So roughly 10% battery every 4 hours. This means 40 hours battery life if I leave the phone idle.
2) Today I wanted to drain the battery then give it a full charge. So I factory reset device twice (each time it automatically downloaded all 28 apps I installed before). A 1 minute phone call. About 1 hour web browsing. 10 minute Goolge Maps Navigation. Tweeked settings of my favorate text reader and read a novel for about 2 hours. Then watched YouTube for 30 minutes. Other time, phone was left in my pocket. Battery lasted about 11 hours.
So, is it normal battery life for G2x? With CM7, is it possible I can extend the battery life to 16 hours in scenario 2?
I think it is NOT normal battery life because when reading the novel (screen brightness at 20%), I can see 1% battery drop every 3 minutes!!! The text reader just displays static text until I flip page. My reading speed is about 2 pages/minute.
Compared to my WM 6.5 device, I barely notice any battery drain when using the same text reader app (WM version of course), same book and same reading speed.
Well people have found that the only issue with android really is the damn battery! some live through it, some buy extended batteries (like myself) and others just don't feel it since they are used to charging regularly. When compared to winmo 6.5 android is just doing so much more in the background comparitively even though winmo 6's multitasking is pretty neat. I guess other thigns to consider would be your screen resolution and that damn 14.whatever hsdpa chip you got in there!
Btw if you are using a app killer, i suggest try taking it off and see if you feel any diffrence.. i did.. i just found out the rogue app and said good bye to task killers and my battery was a little bit more promising then since it was on an aggressive kill certain app more earlier.
One thing though if you were to put the phone on a stanby time you will notice that it could really last but when doing something you can as you said practically seen it burn fuel, I guess the advancements in tech/screens/etc are just way beyond todays batteries!
I found my stock 2.1 doing much much MUCH better than CM7 or 6 even though people say Cyanogen was doing much better on some phones in terms of battery.
Can somebody post the battery life of their Vibrator compared to this phone?
I'm so mad, U mad?
I had mine off charger for maybe a total of 15mins cause I was deleting stuffoff the sdcard and battery was full it dropped 3% within 15mins
I had my myt4g with miui rom idle with wifi on for awhile yesterday and it didn't drop a % until I used it but even then it still hardly was draining. This LG drains way to fast!!
The battery life WILL improve over the first few charges. My Nexus S was TERRIBLE when I got it. 8-10 hours max. After 2 weeks or so, I was getting 25-30 hours of moderate usage.
The G2x I got ~ 14 hours of usage right out of the gate. I'm on full charge cycle 3 or 4 now, and I'm already over 19 hours. Hoping I can end up at around 25 hours or so.
The batteries AND the OS need time to 'learn' each other. The batteries need to break in as well with a full COMPLETE charge cycles. IE charge too 100% and use it until it dies, then charge fully. It also helps to leave it on the charger for about 8 hours PAST it hitting 100% the first time for some reason.

Great battery life with MM update

Hello ..
I am getting amazing battery life since I got 6.0 .. Before with lollipop I used to get around 5 hours on screen time. Amazingly though I hit 6.30 hours on the first day after update, and this with wireless, mobile data and Bluetooth on. And no data saving and screen on 70% which is amazing.
Good job Motorola
Excellent I would say
Excellent batt life with this new update very impressive how a software help the hardware to accomplish that task.
I replaced my STYLE and got a new one two days back. The old one would be dead even though it has 80%+ battery.
The current one is pretty good compared with the old unit. I got 4+ hours of SOT and I was on 4G and WiFi all the time. Was using it heavily for browsing and chat.
mohan_168 said:
I replaced my STYLE and got a new one two days back. The old one would be dead even though it has 80%+ battery.
The current one is pretty good compared with the old unit. I got 4+ hours of SOT and I was on 4G and WiFi all the time. Was using it heavily for browsing and chat.
Click to expand...
Click to collapse
This is not bad at all. What I am saying is after MM update battery life increased about 1.5 hours extra SOT
Perhaps the update fixed something else? Looking at the MM update from L, there appears to be nothing besides Doze, which only works when the device is still and not used. I notice perhaps 15% better battery life if using the device sporadically during the day (medium use for me). With heavier use, I notice zero difference so far.
I was hoping some kernel adjustments were made, but the device spikes with heat about the same. I first thought it was less, but notice the same apps get the device very warm to hot (the GPU is over it's head with 1440p). Standby time is a lot better though, but only a significant improvement if lighter use though the day (so Doze can be a factor).
Usage is relative only to the user though
How do you get such great battery performance? I barely manage to get 3 hours SOT.
When the device is idle there's no drain, i only lose 2-3% overnight. But when the device is active the battery drains very quickly.
Tried a lot of battery saving stuff, greenify, powernap, and so on, but no luck.
I'm on MM stock rooted. Having a lot of apps installed. May this be the culprit?
dyonissos said:
How do you get such great battery performance? I barely manage to get 3 hours SOT.
When the device is idle there's no drain, i only lose 2-3% overnight. But when the device is active the battery drains very quickly.
Tried a lot of battery saving stuff, greenify, powernap, and so on, but no luck.
I'm on MM stock rooted. Having a lot of apps installed. May this be the culprit?
Click to expand...
Click to collapse
If 20% brightness or less, all you do is web surf and a little Youtube, with good LTE signal or wifi and VERY little use of apps that force the GPU to push 1440p, you can get five hours. Everything is relative to the user. That's it.
Counting stock apps, I have 395 apps and 5GB free (64GB model). based on MM battery report, I have no apps that are background battery demons.
rushless said:
If 20% brightness or less, all you do is web surf and a little Youtube, with good LTE signal or wifi and VERY little use of apps that force the GPU to push 1440p, you can get five hours. Everything is relative to the user. That's it.
Counting stock apps, I have 395 apps and 5GB free (64GB model). based on MM battery report, I have no apps that are background battery demons.
Click to expand...
Click to collapse
Are you talking just 1440p video in general or are you talking 1440p games?
I'm lucky if I get 2 hours of SoT. I can't tell if Android Wear is eating my battery or if it's Sprint, despite having a decent signal. Bluetooth and Cell Standby are chewing up the majority of my battery power. I think the network management is trying to shuffle my phone between their three frequencies and while at work, I can only get on the 1900MHz PCS band due to having to use a repeater.
brholt6 said:
Are you talking just 1440p video in general or are you talking 1440p games?
Click to expand...
Click to collapse
Some games and apps run at 1440p and choke the GPU. They stand out by running very warm to hot and drain the battery more quickly.
dyonissos said:
How do you get such great battery performance? I barely manage to get 3 hours SOT.
When the device is idle there's no drain, i only lose 2-3% overnight. But when the device is active the battery drains very quickly.
Tried a lot of battery saving stuff, greenify, powernap, and so on, but no luck.
I'm on MM stock rooted. Having a lot of apps installed. May this be the culprit?
Click to expand...
Click to collapse
Yes the apps do drain battery.
I uninstalled one particular email app that alone would drain 6% daily!
Anyway this time I got is without gaming. Mostly chatting and browsing and a lot of movies (vlc). I think that day I watched not less than 3-4 hours of continuous movies on the phone.
The only thing I did differently than before is removing unnecessary app permissions and notifications. Other than that I have done nothing. Like I said I do not try to save battery because I always have power source near by, but this 6.30 hours SOT i s awesome I tell you.
Based on my little experience with Android some apps will screw up the phone for no reason. First time I got the phone I got around 3 hours SOT with so many unneeded apps, and I did not know which app is draining my battery so I formatted the phone, and started installing apps one by one and watching the battery. And I managed to hit 4-5 hours with lollipop. Now with the update I got this and I was shocked.
Fully back to stock, unrooted, bootlocker relocked.
Upgraded to MM via OTA.
Installed all my apps via Play Store. Until now, i always restored my apps via TiBu, including data/settings.
I'm curious if my battery life will improve.
Will post the outcome, if any
Cheers!
A lot of the time my phone is just sitting on my desk. It used to say I would get around 1-2 days battery life from it sitting there doing nothing. After MM it says there is 8 days left. I have had it unplugged all day and even with some moderate use I am only at 95%. The doze mode really makes a big impact in stand by times!
rushless said:
Perhaps the update fixed something else? Looking at the MM update from L, there appears to be nothing besides Doze, which only works when the device is still and not used. I notice perhaps 15% better battery life if using the device sporadically during the day (medium use for me). With heavier use, I notice zero difference so far.
I was hoping some kernel adjustments were made, but the device spikes with heat about the same. I first thought it was less, but notice the same apps get the device very warm to hot (the GPU is over it's head with 1440p). Standby time is a lot better though, but only a significant improvement if lighter use though the day (so Doze can be a factor).
Usage is relative only to the user though
Click to expand...
Click to collapse
I think it did do something to the apps. The way you can block apps from getting access to location or other services is pretty impressive. I love that as I hated that apps would have access to everything on my phone and I cannot do anything about it. Now I can and this particular feature made me love Android even more after I switched two months back.
Is there something wrong with me. I only get 2 to 2 1/2 hours battery tops and actually I've tried amplify (paid version), and power nap and they don't seem to help much. I have only got 3 hours once since I got this phone. Is it just AT&T maybe?
I'd like to mention something else. Probably not related at all, but ..
My old MXS was a faulty unit (as I mentioned in my previous post). Once I got a new replacement, I have not yet charged the phone using Turbo Charger. I am charging it with Mi Pad charger (non-turbo). Yes, it took about 2+ hours to go from 30 to 100%.
Old MXS was always charged with turbo charger and I was getting pretty bad SOT and the baterry would drain as fast as it would charge. Does it have to do something with using a normal vs turbo charger?
I stop pretty much all background services and apps not in use. The only active applications are firefox, whatsapp and VLC.
My screen is set to 50% brightness with adaptive brightness ON. Moto X display and attentive display is ON.
Non-root (planning to root soon) and Moto ROM.
mohan_168 said:
I'd like to mention something else. Probably not related at all, but ..
My old MXS was a faulty unit (as I mentioned in my previous post). Once I got a new replacement, I have not yet charged the phone using Turbo Charger. I am charging it with Mi Pad charger (non-turbo). Yes, it took about 2+ hours to go from 30 to 100%.
Old MXS was always charged with turbo charger and I was getting pretty bad SOT and the baterry would drain as fast as it would charge. Does it have to do something with using a normal vs turbo charger?
I stop pretty much all background services and apps not in use. The only active applications are firefox, whatsapp and VLC.
My screen is set to 50% brightness with adaptive brightness ON. Moto X display and attentive display is ON.
Non-root (planning to root soon) and Moto ROM.
Click to expand...
Click to collapse
Maybe if it is a faulty device. I use turbo and i t has nothing to do with battery life.
Notstewie said:
Maybe if it is a faulty device. I use turbo and i t has nothing to do with battery life.
Click to expand...
Click to collapse
Probably yes. But i would charge on non turbo for two weeks so that I get definite data for comparison.
timde9 said:
Is there something wrong with me. I only get 2 to 2 1/2 hours battery tops and actually I've tried amplify (paid version), and power nap and they don't seem to help much. I have only got 3 hours once since I got this phone. Is it just AT&T maybe?
Click to expand...
Click to collapse
Less than 3 hours is not good bro, really anything below 4 hours is just bad. You better figure out what is draining your battery, or maybe it Is a bad unit?
mohan_168 said:
Probably yes. But i would charge on non turbo for two weeks so that I get definite data for comparison.
Click to expand...
Click to collapse
what difference does it make if it is charged slowly or not??
It should not matter, if the battery is not keeping the power that means it is defective, nothing to do with slow or fast charging.

Thoughts on the Verizon G5 so far?

I took advantage of the BOGO offer from Verizon and got two LG G5 at Costco. I've been using my phone lightly, but I can't help but complain about the major issues that gets everyone else talking: Battery life.
I see other people have screenshots of achieving 6-7 hours of SOT, but I'm seeing nowhere near that. The most SOT I can see is having 3 hours before hitting to a depleted battery. Occasionally as well, the phone feels pretty hot to touch when it idles or have some fair amount of usage. Even right now I have it inside a thick, bulky protective case, and i can feel the heat from the back. Is it the SD820 or is there something off?
Just to make a comparison, I have been using the Sony Xperia Z3v for a year and a half with Verizon since its release and it's a great all around phone. I usually achieve 5 hours of screen on time or even more depending on how heavy I've used it. Waterproof, dual front facing speakers, 20.7 MP camera (although very outmatched by the G5's), and the power saver absolutely works. What I mean by that is that when the power saver is on in the G5, nothing seems to load at all.
So the overall question is, how is this phone for everyone? I absolutely love the camera, but the battery drainage and overheating is an issue for me. I've had thoughts about exchanging for the S7 Edge since it's pretty much a direct upgrade of my Xperia, but I'd like to see what the G5 can really offer. Oh and, how long is it until I get the extra G5 accessories from doing that bundle deal? Thanks.
You know I've noticed peoples complaints about that but to be honest I think its just certain phones that had these issues. I don't know how but mine hasn't been hot since I first set it up. My battery life lasts me a full 8 to 10 hours depending on if I do too much gaming or YouTube. Those are my biggest battery abusers. But I made sure to deactivate the bloatware Verizon wanted to install. I've had a good experience with mine. The only time I've been mind boggled was when out of the blue chrome would cause the phone to freeze up till I reset chrome. Other than that my device has been running so smooth.
Sent from my VS987 using XDA-Developers mobile app
I've been one of the people complaining about battery life. In the first week or so that I had my phone, battery life was miserable. I need to be completely honest here though. After getting into my second week of using this phone, my battery life has greatly improved. In my honest opinion, I think it needs about a good week to 'settle' or 'break in'. I've done nothing different done I set my phone up and I have deleted any apps or anything. I don't know if this is the case for anyone else or not.
I like the phone a lot. It is fast and everything works well.
The only things that I want improved are
1) Screen brightness adjustment. Too dark in dimly lit areas and too bright in normal room lighting.
2) Battery Life. This is a strange one. Some days I have really good life, but sometimes the standby use it high. Google Play Services sometimes eats a lot of battery. I have to reboot to get it to stop. There are also people saying that being on wifi causes more drain. I thought this was not true for me, but I am rethinking. It may be higher when I am at home and on wifi.
djsbad said:
I've been one of the people complaining about battery life. In the first week or so that I had my phone, battery life was miserable. I need to be completely honest here though. After getting into my second week of using this phone, my battery life has greatly improved. In my honest opinion, I think it needs about a good week to 'settle' or 'break in'. I've done nothing different done I set my phone up and I have deleted any apps or anything. I don't know if this is the case for anyone else or not.
Click to expand...
Click to collapse
Smithfolk4 said:
I like the phone a lot. It is fast and everything works well.
The only things that I want improved are
1) Screen brightness adjustment. Too dark in dimly lit areas and too bright in normal room lighting.
2) Battery Life. This is a strange one. Some days I have really good life, but sometimes the standby use it high. Google Play Services sometimes eats a lot of battery. I have to reboot to get it to stop. There are also people saying that being on wifi causes more drain. I thought this was not true for me, but I am rethinking. It may be higher when I am at home and on wifi.
Click to expand...
Click to collapse
So far, I've yet to achieve substantial screen on time. It's really strange, I was having my phone used from 330 to 830 tonight, and it went from 100% to 45% with only 50 minutes of screen on time. WiFi and mobile data off, and I wasn't taking a lot of pictures.
One thing strikes me is the Held Awake/Doze clarified by GSam. That's eating the most battery, what exactly is it?
GigaSPX said:
So far, I've yet to achieve substantial screen on time. It's really strange, I was having my phone used from 330 to 830 tonight, and it went from 100% to 45% with only 50 minutes of screen on time. WiFi and mobile data off, and I wasn't taking a lot of pictures.
One thing strikes me is the Held Awake/Doze clarified by GSam. That's eating the most battery, what exactly is it?
Click to expand...
Click to collapse
Honestly, I'm not positive. Make sure in your display settings, though, that you have 'screen always on' turned off.
GigaSPX said:
So far, I've yet to achieve substantial screen on time. It's really strange, I was having my phone used from 330 to 830 tonight, and it went from 100% to 45% with only 50 minutes of screen on time. WiFi and mobile data off, and I wasn't taking a lot of pictures.
One thing strikes me is the Held Awake/Doze clarified by GSam. That's eating the most battery, what exactly is it?
Click to expand...
Click to collapse
I haven't been able to figure out why sometimes GSAM shows very little held awake with the phone deep sleep for a majority of the time and sometimes the held awake is almost the entire time since the phone has been unplugged. It seems that if the phone gets into the held awake state that you can get out of it by rebooting, at least it seems like that to me. I have not had enough time to come to firm conclusions on this. I am pretty sure that the held awake has something to do with Google Services or Play Services. It would be great if we can get root and limit the wakelocks from these. Just have to wait on that.
Pretty solid compared to the G4. No heating issues, battery lasts longer as well. I'm at 25%, 11h 7 min on battery 2hr 53min screen on time.
I average 14.5 hours total, 3.5 screen on time. I have noticed turning wifi off when I'm not using it saves a pretty decent amount of battery, which is odd.
I'm not upset with the battery life or anything, it's better than my S4 and G4 were, but if the S7 really lasts 7 hrs with screen on.... i don't know. I have another week to decide on restocking. I do love how quick it is, it's beautiful, feels great in the hand, and the option of removable battery.
I like this phone, and while it is better than the G4 in every way (very buggy, lag, missed taps, etc), I now get paranoid about any tiny bug on this thing and wonder if a Galaxy would be more reliable.
My first full charge I got 45 hours of battery life with 4 hours of screen on time. However that was before I had all my apps reinstalled and that 48 hours with 4 hours SOT included reinstalling all of my apps. Screen brightness on auto the entire time.
Since then I've only been getting 4 hours of SOT with 24 hours battery life. That's only 4 - 6 hours more of total time on an no more SOT than what my 2 year old LG G3 was getting.
LG skimping on the battery was a mistake.

Worth rooting? Can it improve my battery life?

Hey guys! Been getting around 4h SOT as highest on my device, AOD turned off, 30-50 % brightness, fhd+ and dark theme.
Can get through the day but can't get a minute more than 4h sot which seems weird.
It's not that I think the battery life is absolute ****, I'm okay with it, the thing that sort of "bothers" me is that i see people getting like 6-10h SOT on like 2 days of charge which seems unbelievable to me.
Now on to the question,
is my utterly **** 4g signal preventing me from reaching 6-7 h SOT or is it just that I'm "unlucky" with the battery lottery.
Is it fair to expect a 6-7h SOT if i do decide to root and flash something like a notorious kernel and a rom?
Which I know will permanently void my warranty.
Or should I return the device and swap it out for either another s8+ or something like a g6?
I hope I don't seem too much of a brat ****face but I did lay out tons of cash for this phone, which other than the battery I am incredibly impressed by.
Thank you guys for keeping this forum running, it's been a lifesaver!
Del
underdog_656 said:
Most of these 6-10 hours of sot is nonsense as most of these people don't even use the phone properly only leaving the screen on so that sot would increase rather than using it properly like watching YouTube having a decent brightness etc... Just use your phone as much as you like stop thinking about battery life if it's really a problem get a powerbank. Me my self if I'm at work I use a lot of GPS as I need to travel and I have my screen turned of as I listen to Google maps rather look this will put me at around 3 to 4 hours of SOT or more sometimes depending how much I use the screen. But when I'm at home I use the phone non stop and I get around 5 -7 I always use full brightest all the time full res gaming sometimes youtube etc as you can see the people who get 6 to 10 they don't even use the phone that much so is there a point for them to have this phone if they don't use it to full potential no they might as well get a cheap phone.
Edit:
The only reason I would suggest rooting is if you want to play around with the phone like having a different kernel that allows to change voltage, speed etc
Click to expand...
Click to collapse
This, i can get 20hr sot on my mate 9 if i leave it with screen on, take in account SOT means NOTHING, it just one measure that can be easily manipulated.
I use my phone the way i use and i only judge by the end of the day, how much perfect left and what took the most of my battery life, without caring about SOT at all.
Just now i was traveling to Budapest and made ton of photos and videos with my DSLR and the Mate 9, on sunny days your brightness will be up, shooting 4K videos and taking pictures, using GPS google maps, will make your SOT low, does that mean your battery life is bad? NOT AT ALL
Stop caring about sot and use GSAM monitoring up to understand if there is a rogue app.
I have the S8+ and I see that they have figured out how to root the Snapdragon version. I am not really pressed to root my phone.
The 1st time I used the phone, which was a weekend and mostly WiFi, I got over 6 hours of screen time. However on my work days where I use mostly LTE service and I'm inside an office building, I may only have 3-4 hours of screen time but I will make it home with almost 50% of battery life.
I'm no longer concerned with screen time. If my phone can get me through a full day, then I'm happy with it.
Sent from my SM-G955U1 using XDA-Developers Legacy app
alldino said:
Hey guys! Been getting around 4h SOT as highest on my device, AOD turned off, 30-50 % brightness, fhd+ and dark theme.
Can get through the day but can't get a minute more than 4h sot which seems weird.
It's not that I think the battery life is absolute ****, I'm okay with it, the thing that sort of "bothers" me is that i see people getting like 6-10h SOT on like 2 days of charge which seems unbelievable to me.
Now on to the question,
is my utterly **** 4g signal preventing me from reaching 6-7 h SOT or is it just that I'm "unlucky" with the battery lottery.
Is it fair to expect a 6-7h SOT if i do decide to root and flash something like a notorious kernel and a rom?
Which I know will permanently void my warranty.
Or should I return the device and swap it out for either another s8+ or something like a g6?
I hope I don't seem too much of a brat ****face but I did lay out tons of cash for this phone, which other than the battery I am incredibly impressed by.
Thank you guys for keeping this forum running, it's been a lifesaver!
Click to expand...
Click to collapse
Firstly,
I fully agree with @Derpling post above .( His last paragraph..)
Also SOT, now days, means nothing to me.!
Many years back, i used to be obsessed
with benchmark, battery usage, performance etc.
I also use to root all my device's.
However, presently i have stop been " obsessed"
and accept what is reasonable/acceptable.
eg. battery usage including SOT.
prefomance and stop rooting.
There is plenty work arounds available.
Presently, what i do
is i have a few good battery
apps... Betterbattery, Wakelock detector,
Gsam, I enabled these apps with ADB, to get them working. No root. (Very straightforward one or two liner commands, that's all.)
If i have a rogue app, and my battery use " suffers" i use these apps to id the app. and sort app out accordingly.
eg clear cache /data or uninstall.
Lastly i read online that presently,
more devs are
using " other alternatives" than root.
eg ADB...
to give you similar end results.
Bottom line... I found that in most cases
rooting a device just
creates other/more issues.!.. to fix.!
Now days, for me to root my device ( if ever again)
i must have a very, very good reason to root.
Good luck
willcor said:
Firstly,
I fully agree with @Derpling post above .( His last paragraph..)
Also SOT, now days, means nothing to me.!
Many years back, i used to be obsessed
with benchmark, battery usage, performance etc.
I also use to root all my device's.
However, presently i have stop been " obsessed"
and accept what is reasonable/acceptable.
eg. battery usage including SOT.
prefomance and stop rooting.
There is plenty work arounds available.
Presently, what i do
is i have a few good battery
apps... Betterbattery, Wakelock detector,
Gsam, I enabled these apps with ADB, to get them working. No root. (Very straightforward one or two liner commands, that's all.)
If i have a rogue app, and my battery use " suffers" i use these apps to id the app. and sort app out accordingly.
eg clear cache /data or uninstall.
Lastly i read online that presently,
more devs are
using " other alternatives" than root.
eg ADB...
to give you similar end results.
Bottom line... I found that in most cases
rooting a device just
creates other/more issues.!.. to fix.!
Now days, for me to root my device ( if ever again)
i must have a very, very good reason to root.
Good luck
Click to expand...
Click to collapse
You so right about root, there is a workaround to everything tbh, i use the Mate 9 without root and it's the closest phone in my opinion to perfection, no tweaks needed.
Geekbench SOT all of it are just numbers as it means nothing.
alldino said:
Now on to the question,
is my utterly **** 4g signal preventing me from reaching 6-7 h SOT or is it just that I'm "unlucky" with the battery lottery.
Click to expand...
Click to collapse
I think this is your problem, not the battery. One of the biggest battery killers on any device is a weak signal as the phone will push more power to the radio to try and find a better one (not exactly what happens, but there or thereabouts). Rotting won't change that.
Have you tried switching to 3G only, does that make a difference? Does it differ when you spend time in an area with a better signal?
El Presidente81 said:
I think this is your problem, not the battery. One of the biggest battery killers on any device is a weak signal as the phone will push more power to the radio to try and find a better one (not exactly what happens, but there or thereabouts). Rotting won't change that.
Have you tried switching to 3G only, does that make a difference? Does it differ when you spend time in an area with a better signal?
Click to expand...
Click to collapse
The problem with my service signal is just temporary, I've been working for the summer but I'm moving back to the university tonight, there I have full 4g and 3g signal so hopefully this will change, however I have settled down a bit with the phone and I'm pretty happy with the battery now, 4h sot is not bad
yea rooting aint the solution
try gsam, wakelock detector, etc to detect the rogue app
imho you don't need root to improve your battery life, i'm achieving 5hr SOT easily with brightness 50%, AOD on and resolution WQHD+, all you need is to disable some of the preinstalled packages, do a bit of research to find out which ones can be disabled without a risk, then you will be good to go pm me if you need an assistance
I think your battery preformance is most likely to some apps or how you use it, I can say from expariance and experemanting with my S8+ that SOT and battery over all can shift.
I haven't rooted since im using samsung pay and haven't had a real need for root yet. but have tried a couple of diff apps and tests to max my battery but found that non off it really saves battery, quite the opposite.
I have tried substrantium to go all black in the phone (cus we have Amoled) but my battery life got worse
tried nova launcer to get some preformance boost and also black down the theme, but nova still suffers from battey drain issues (had same problem with my HTC10)
have disabled alot of services like bixby etc with BK Plugin. but made no big diff.
So after having the phone since launch and mixing and matching stuff to see if I could squeese a little more life out of an already good phone, I got to conclution that Samsung has done a good job in optimizing the S8+.
The stock launcher is fast and efficent, the built in "cleaning" program works well in shuting down unused apps etc. and running the phone with no extras and not tweking anything special or trying to get the phone as black as possible, I can go about 2 full days with normal use.
If you have the Snapdragon, battery life will decrease, by 20%.
I switched from a Verizon S8 to an unlocked S8+ and imo not having any of the added bloatware makes a difference. On my S8 I could make it through a whole day but my battery would be down under 10%. I know the S8 plus has a bigger battery but I go to bed with 30-40% of battery life.
I run my phone starting at 4:45am with a gym work out and I'm in bed by 11pm. My usage is mostly lte except for when I'm home. My SOT is always 5 hours or more.
Sent from my SM-G955U1 using XDA-Developers Legacy app

battery has become utter trash since 8.1 update

anyone else notice it? first off, I'd be at like 40 minutes screen on time before I'd drop to 99 percent... now, it drops immediately after unplugging, and that 40 min screen on time, I'll be at like 69 percent now. it's absolutely ridiculous. battery drains like crazy now, but nothing is running in the background that shouldn't be. everything is identical to pre 8.1 update. today I was at right under 60 min screen on time, at like 59 percent. I looked at old screenshots pre 8.1, and I'd be at like 2.5 hours screen on time at 59 percent. it's absolutely ridiculous that Google is purposely ruining the phone with each update in terms of battery life. I'm not the only one, either. it's on reddit as well. planned obsolescence? yep, I'm starting to think so.
Sent from my Pixel 2 using Tapatalk
Man. Do you live off grid or something and can only charge every 2 days or something. If you want 3+ hours of SOT than you would have to be close to a charger anyways and that's with any phone. All these phones that have come out late 2016 early 2017 have the same battery set up...use your phone and charge it fast and use your phone some more.
My pixel 2 same as my Moto z2 force and my s8
jayochs said:
anyone else notice it? first off, I'd be at like 40 minutes screen on time before I'd drop to 99 percent... now, it drops immediately after unplugging, and that 40 min screen on time, I'll be at like 69 percent now. it's absolutely ridiculous. battery drains like crazy now, but nothing is running in the background that shouldn't be. everything is identical to pre 8.1 update. today I was at right under 60 min screen on time, at like 59 percent. I looked at old screenshots pre 8.1, and I'd be at like 2.5 hours screen on time at 59 percent. it's absolutely ridiculous that Google is purposely ruining the phone with each update in terms of battery life. I'm not the only one, either. it's on reddit as well. planned obsolescence? yep, I'm starting to think so.
Sent from my Pixel 2 using Tapatalk
Click to expand...
Click to collapse
I really doubt it's any different than it was. It's more likely the battery wasn't reporting correctly in 8.0. When I was on 8.0 the battery would sit at 100% for at least an hour, maybe 2, all the while I was using the phone. Yes, since 8.1 it drops much faster when I first start using it after removing it from the charger but at the end of the day I still have pretty much the same battery percentage left as I did when I was on 8.0. It drops faster to begin with but in the end, it's the same as before. Rather than planned obsolescence, it's more likely they simply fixed something that wasn't working properly before. There's no way you can use one of these things for an hour or more and not have the battery drop below 100%. Just my two cents worth.
Can't complain. Forgot twice to plug it in at night, woke up both times with 45% left. At my regular use that is good. My previous S7 would have been down to <20%. BTW, this:
jayochs said:
it's absolutely ridiculous that Google is purposely ruining the phone with each update in terms of battery life.
Click to expand...
Click to collapse
is just utter BS, maybe you should reinforce you aluminum hat...
I can't say my battery life has been bad or gotten worse with 8.1. If anything it got better. I didn't plug mine in last night, woke up with 38% left. That was about 20 hours since last charge. I don't think Google is purposely obsoleting their newest phones a couple months after release either.....
Edit: I should mention, I have my AOD always on, I have Now Playing enabled, double-tap-to wake is disabled, and I use one of the prepackaged Pixel 2 live wallpapers (Marvelous Marble). The only ting I really do thinking of the battery is turn the phone face down when I go to bed since that shuts off the display.
so i guess the fact that my screen on time has dropped by over an hour means I'm the one who's crazy, and the phone is perfectly fine.... riiiiiggghht.
Sent from my Pixel 2 using Tapatalk
jayochs said:
it's absolutely ridiculous that Google is purposely ruining the phone with each update in terms of battery life. I'm not the only one, either. it's on reddit as well. planned obsolescence? yep, I'm starting to think so.
Click to expand...
Click to collapse
jayochs said:
so i guess the fact that my screen on time has dropped by over an hour means I'm the one who's crazy, and the phone is perfectly fine.... riiiiiggghht.
Click to expand...
Click to collapse
I'm pretty sure this part of your post is the crazy part. Your battery drain is probably real. Have you confirmed it exists on a clean install without any apps installed or system configurations changed? Only then should you entertain that this is Google's fault. Even then, accusing them of doing it on purpose runs dangerously close to tinfoil hat territory.
I feel my battery life has gone down slightly going from 8.0 to 8.1. Though, I'm running all the bells and whistles this phone has to offer, along with tasker profiles. I also agree with the previous statement. Perhaps the system wasn't accurately measuring the battery life.
I did have horrible battery life for a bit when I was playing with a new kernel and dirty flashing some things to get Viper4Android working.
I have two Pixel 2 phones (non XL), and honestly they are amazing at battery compared to my HTC M8s (again two) . Are they perfect? No. Are they better than any phone I've ever had? Yes.
Sent from my Pixel 2 using Tapatalk
As has been said above, the battery no longer sticks at 100% for the first hour or so of screen on time, but that was always obviously nonsense anyway so a fair conclusion is that it's now better calibrated. But I've noticed no difference overall in battery life: yesterday was the first time I tried running for 2 days rather than charging overnight, and when I plugged it at night it had run for 41 hours with 6 and a quarter hours screen on and 7% remaining, so really not a problem there.
If you're having trouble with an update:
- Use BetterBatteryStats to figure out if any apps are acting up (or just top off the battery, use phone normally, and check Google's battery stats for Apps Using Battery, standby drain and screen on time)
- Clean flash the factory image, set up phone as new, go through charge cycle and check stats.
I'm not having any issues with battery on 8.1 (clean installed factory image). Easily get 4 - 6 hours SOT. As a matter of fact, my battery life is shockingly excellent for a smaller device like this.
Google is not making battery worse on purpose with their brand new flagship device.
I don't have any issues with the battery after the 8.1 update. It doesn't stay on 100% for a long time like it used to, but like everyone else is saying, that must have been buggy before. It isn't realistic for the battery to stick on 100% with 40 mins of SOT. Overall I don't see a reduction in battery life and I'm quite happy with the 8.1 update.
I was checking BBS and couldn't tell much. Do you still need to install it as a system app?
Ra6idr0y said:
If you're having trouble with an update:
- Use BetterBatteryStats to figure out if any apps are acting up (or just top off the battery, use phone normally, and check Google's battery stats for Apps Using Battery, standby drain and screen on time)
- Clean flash the factory image, set up phone as new, go through charge cycle and check stats.
I'm not having any issues with battery on 8.1 (clean installed factory image). Easily get 4 - 6 hours SOT. As a matter of fact, my battery life is shockingly excellent for a smaller device like this.
Google is not making battery worse on purpose with their brand new flagship device.
Click to expand...
Click to collapse
530farm said:
I was checking BBS and couldn't tell much. Do you still need to install it as a system app?
Click to expand...
Click to collapse
Not sure. I haven't used it for quite a while. The built in battery info works well enough for me, I haven't been having issues. It's good for checking wakelocks and some more advanced stuff but I think it needs a few cycles/days before it can analyze properly.
I think it's just the way oreo is. Ever since 8.0 it just drains the battery very aggressively. 8.1 the OS runs smoother, but battery drain is still high. Been the case though since 8.0 for me, nothing new.
I haven't clean flashed in over 6 months though. Just been on 7.1 and been rolling up the OTAs and chugging along. I found using Naptime by Franco helps a bit.
530farm said:
I was checking BBS and couldn't tell much. Do you still need to install it as a system app?
Click to expand...
Click to collapse
No
Sent from my Pixel 2 using XDA-Developers Legacy app
IMO battery life has never been great on the Pixel 2. It's the same on 8.1 as it was on 8.0 for me.
Right now I'm trending towards 6 hours SOT (3 hrs SOT at 50%), and I have been BT streaming audiobooks most of the day. I also watched Netflix for 30 min on full brighness. That's better than 8.0 for me, I was lucky to get 5 hrs SOT max.
I would say the calibration is more accurate now, it hung on 100% for too long, so it may appear to drain faster but so far in practice I've gained battery.
Battery life isn't as good as my OP5, but that has a big battery compared to the Pixel 2. I think for it's size it's doing a good job.
mikeprius said:
I think it's just the way oreo is. Ever since 8.0 it just drains the battery very aggressively. 8.1 the OS runs smoother, but battery drain is still high. Been the case though since 8.0 for me, nothing new.
I haven't clean flashed in over 6 months though. Just been on 7.1 and been rolling up the OTAs and chugging along. I found using Naptime by Franco helps a bit.
Click to expand...
Click to collapse
I guess you are talking about one of your other devices here, rather than the Pixel 2.
I am getting horrible battery life since going to 8.1
I installed the update the night of the 13th. The past 2 days my battery drains to 20% in about 8 hours. At that point whatever is causing it was stopped by the battery saver mode or the reboot I did when I discovered the phone was in battery saver mode.
Light use at work, staring at my phone is not a thing I have time for. No streaming, no surfing. Just checking texts and emails here and there. Prior to the update I'd get home 12 hours after I left the house and be around 75-80%. Not rooted, not unlocked. Bone stock.
Built in battery stats say 'system' is the culprit. Digging deeper I see Google Play Services app used 70% of my battery from about 7am to around 4 or 5pm this evening. I'd post a screen shot but I didn't to think of taking one before I plugged it in. I just installed BBS and will monitor it for a day.
Large Hadron said:
I guess you are talking about one of your other devices here, rather than the Pixel 2.
Click to expand...
Click to collapse
I thought this was the 5x forum for some reason. Pixel 2 no issues. It was my 5x

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