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Very curious quirk On Android Open Kang Project ROM... Near Unlimited Battery!!!!

hi all...
soo after my comments over a week ago on the aokp website for this build, i decided afterall to take the plunge and update. i was on b26, so subsequently had to flash b27 and then this. everything has gone absolutely swimmingly with no issues at all so far....
HOWEVER>>>>>
I am faced with a very puzzling quirk. its by nooooo means a problem at all, infact it quite the opposite!!! let me explain.
i've started charging my phone in the evening these days for some stupid reason and then, when charged taking it off and going to bed. After getting this milestone on, my battery has been killed over night, draining to around 15%. Normally, it would drain to around 70% and be flat by the end of the day ready for charging again.
This continued for a few days when i decided to root out the cause of the massive overnite idle drain. I installed a fantastic free app called Badass Battery Monitor (which i highly recommend btw!), and over a period of a couple of days the offending app was weeded out. It was Nova Launcher. This had never happened to me before and couldn't understand it. So, as part of my diagnostics, I decided to confirm the findings by removing it and just using stock.
Over a couple of days monitoring, with exactly the same charging method, my battery levels returned to normal drainage with around 75% battery left by the morning. Fantastic. I had found the problem fixed it and got back to normal. Soooo where is the quirk i here you say!!!? lol Well......
On average, from everything i've read in forums, battery drain overnight while phone in standby is around 20/30%, so mine WAS right up there with the majority of you.
Last night, i decided to charge to full and then wipe battery stats. Which i did. Now, bare in mind here that I ONLY have the standard battery that is supplied with the Galaxy Nexus. I got up this morning, and to my utter amazement, my battery had only drained 2%
Now been incredibly realisting here based on average overnight drains, i was 100% sure that this was deffo an error. I have done everything from restarting the phone, taking the battery out, but still the level in my battery was saying the same.
As I sit here writing this, I have been streaming a radio station via wifi on the phone for the last 2 hrs, and atm my battery is telling me that it is STILL 85% full.
I am DEFFO not complaining, but i'm sure now, you can see why the hell i am so puzzled! HOW THE HELL IS THIS HAPPENING, because i can genuinely find no explanation at all for it

as a follow up, it is now more or less 5 hrs since my orginal post, and my battery is reporting that it is 75% full

Jeesh, 20 to 30 idle drain overnight? My phone drains about 3 to 5 overnight which is typically 8 hours of sleep.
Sent from my SGH-T989 using XDA

Interesting quirk. Are you a heavy or a light user? It'd be nice to see how it drains after a full drain and recharge.

Mrgadgetz said:
Interesting quirk. Are you a heavy or a light user? It'd be nice to see how it drains after a full drain and recharge.
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well, to see if what was been reported was correct, i've been an absolute heavy user today. i have wifi on, ive streamed radio via internet for around 3 hrs, ive been playing all sorts of games and watched a few youtube vids. and my battery is atm reporting 74% life left

so here i am, STILL very very puzzled..
my battery life is just going and going with no signs of running flat... have a look at these screenshots and give me an explanation as to why i suddenly have a super battery!

MAYBE you really have a super battery or your mobile is glitched and shows the battery like that due to laG?

I'm on miui and I lose 0% overnight. It just depends on the ROM, but 20-30% is ridiculous!
Sent from my GT-I9100 using XDA

AOKP IS AMAZING
AOKP MS4 CM9, *goes all day without charging phone *

Ictcreations said:
so here i am, STILL very very puzzled..
my battery life is just going and going with no signs of running flat... have a look at these screenshots and give me an explanation as to why i suddenly have a super battery!
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Your states do not seem super impressive. On most phones the screen is the biggest drain. You show 49% battery with a screen on of only 1 hour. After 33 hours you've only used your phone for 1 hour screen on. Thats VERY little.
I usually get 2.5-3 hours of screen on time for my galaxy nexus.

Ictcreations said:
I installed a fantastic free app called Badass Battery Monitor (which i highly recommend btw!)
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Click to collapse
Thanks for the app recommendation! Been looking for something like it all day.

This will depend on ROM/Radio/Kernel user installed programs/sync etc but 2-6% is normal drain over night anyone with 20% needs to seriously look @ battery stats and work out what's causing wake locks.
Also not forgetting most phones need to bed in after a flash which can take 2-3 days before we see real battery info.

Accurate battery life?

Just got a new Z3 D6616. This is the battery life projection I'm getting. I bought this phone because I heard great things about it's battery life. Also, when I saw a YouTube review, the guy's phone had a battery life projection of several days. Is something faulty with this specific handset? Am I doing something terribly wrong? Please advise.
PS. I'm at about 30-40% screen brightness with the adaptive setting on.

Prasad said:
Just got a new Z3 D6616. This is the battery life projection I'm getting. I bought this phone because I heard great things about it's battery life. Also, when I saw a YouTube review, the guy's phone had a battery life projection of several days. Is something faulty with this specific handset? Am I doing something terribly wrong? Please advise.
PS. I'm at about 30-40% screen brightness with the adaptive setting on.
Click to expand...
Click to collapse
You should actually use the phone from 100% doing your daily stuff till about 1% and take screen of your on screen time. On screen time is what matter. They claimed to have at least 8 hours SoT with normal usage but the max I can get is only 4.5 or 5 hours.

I did a lot of reading before buying the phone. Heard about the "memory" screen or something that helps towards battery life. Several users claimed 10 hours SOT. Could it be the newer firmware that might have reduced it? I'll post the YouTube videos I saw shortly.

I use brightness at about 1/3 and have location and autosync on. I get about 8-9 Hrs SOT in a 36Hrs period.
At first even I got 4-6 Hrs SOT until it calibrated over a few charge/discharge cycles.
It takes a few cycles for the battery to calibrate, if you want to do that faster do the following:
1. Drain to 0-1% with normal use
2. Do a full charge till 100%
3. Do another full discharge (Dont charge in between)
4. Do another full charge till 100%
5. Now just use it how you want.

Thanks! Guess I'll have to report back report back after a couple cycles.

I have the same problem, I have enable the stamina mode, have the brightness at half and auto,and the battery won't last for one day,as an example today when I get up after I unplug the device it go from 100% to 99% right away and now after 10 hours without game,photos just Internet reading over WiFi the battery is at 31%. It doesn't seem normal, what should I do?must go to service?

I'm at 59% and my phone predicts 1 day remaining.
D6616 as well
I do suspect an app draining my battery though...

xxquicksh0txx said:
I'm at 59% and my phone predicts 1 day remaining.
D6616 as well
I do suspect an app draining my battery though...
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1 day standby time you mean?

Prasad said:
1 day standby time you mean?
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Nope, 1 day 19 hours standby
Well, it says 23 hours now... and 1 day 18 hours in Standby mode.
I also have no power saving features enabled, with max brightness..
I can get 6+ hours if I limit my brightness, but I settle for less with max brightness throughout the day.

xxquicksh0txx said:
Nope, 1 day 19 hours standby
Well, it says 23 hours now... and 1 day 18 hours in Standby mode.
I also have no power saving features enabled, with max brightness..
I can get 6+ hours if I limit my brightness, but I settle for less with max brightness throughout the day.
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Could it have something to do with the display image enhancement mode? I'm using X-reality. What about you?

Prasad said:
Could it have something to do with the display image enhancement mode? I'm using X-reality. What about you?
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I have it turned off, I can't really tell a difference..
Sometimes my "battery forecast" is low like yours though, I wouldn't worry about it unless you're actually getting bad battery life.

xxquicksh0txx said:
I have it turned off, I can't really tell a difference..
Sometimes my "battery forecast" is low like yours though, I wouldn't worry about it unless you're actually getting bad battery life.
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The battery life I'm experiencing is worse than the "forecast", which is essentially what worries me. Regardless, I've no right to whine unless I've cycled the battery completely at least once since it is after all a brand spanking new phone.

Prasad said:
The battery life I'm experiencing is worse than the "forecast", which is essentially what worries me. Regardless, I've no right to whine unless I've cycled the battery completely at least once since it is after all a brand spanking new phone.
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I doubt I'd get the 24 hours from now with my current use either. As long as it lasts me throughout the day I'm fine.
I can generally go the entire weekend without charging my phone though.

Ive gone through 3 Z4s (Cosmetic defects/lightbleed) on my 4th Z4, all of the were bad until they were calibrated within a few days.

abhinav.tella said:
Ive gone through 3 Z4s (Cosmetic defects/lightbleed) on my 4th Z4, all of the were bad until they were calibrated within a few days.
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I think you mean Z3s...

Lol yes.

I fully discharged and recharged my phone. Now I got 18 hours usage, including 7 hours SOT with the screen on max brightness for half an hour. It's getting much better now, certainly a huge improvement over my previous phone!
Sent from the inner sanctum of my mind.

That's more like it, it should get a little better.

Please have a look towards the end... My phone's been awake when I was asleep. Is there an issue with this phone deep sleeping? While I get a good SOT, the idle drain is too high! Please advise on how I could investigate if a particular app is doing this. I used to use "wakelock detector" but that no longer works without root.
EDIT: Stamina Mode always on.
Sent from the inner sanctum of my mind.

Prasad said:
Please have a look towards the end... My phone's been awake when I was asleep. Is there an issue with this phone deep sleeping? While I get a good SOT, the idle drain is too high! Please advise on how I could investigate if a particular app is doing this. I used to use "wakelock detector" but that no longer works without root.
Sent from the inner sanctum of my mind.
Click to expand...
Click to collapse
I have the same problem too... Whenever I leave the phone idle, even with the stamina mode on, it still uses the battery as if I was using it.

Wakelock battery drain [Need Help]

Hello, guys!
I have a problem with my phone for the past few months and after clean flashing 7.0 Nougat it's still present.
My problem is that when I'm home, my phone drains not even few percent of battery. Specially when I'm sleeping, I can go to bed with 100% battery and wake up with 98-99%. BUT when I'm out, specially when I'm working since my work involves a lot of walking the battery just drains like hell and I mean like 7-10% per hour considering I don't even use the phone. Sometimes I will have 30min to an hour of screen-on time and after 10 hours of work I will be home with 15% of battery left.
Now I know that this is mostly to some rouge app that keeps my phone awake and drains my battery but I'm not really sure how to pinpoint it.
I will provide my stats from Bettertbatteystats and WakelockDetector if you guys can help me.
Thanks in advance!
Edit: I just want to explain that the straight line on the first picture with the batter drain graph is when I went home and left my phone on the table for about 3 hours. You can clearly see that the difference in battery consumption during my phone being in my pocket and on the table.

phone idle

Mine seems to be topping the list of battery drain

Further update ,is this normal phone idle useage

From the day one when I bought this phone, I had Battery drain and I've been using all tips and trick. mostly tweaking setting and surprisingly yesterday night I had 0% battery drain with turning off Wifi.

combat goofwing said:
Mine seems to be topping the list of battery drain
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Click to collapse
You have no cell signal?

Had cell signal all day

Don't get me wrong ,battery life is great so far today on 43% and had 3hrs 20 mins SOT,just strange to see phone idle at the top of the list

I'm having the same issue. Idle Phone drain definitely goes away when I turn on airplane mode but I haven't tried turning off WiFi yet. I transferred all of my settings and apps from a Pixel 2 XL that had no issues with power consumption.

99% after 8 hours idle overnight
stock ROM
unrooted
If I had to take a guess, some app is draining your battery.

808dp said:
stock ROM
unrooted
If I had to take a guess, some app is draining your battery.
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Click to collapse
I'm on stock 7.1 unrooted
Dispute this still getting great battery life with 5/6 hrs SOT
Is there any app that can help identify what is causing phone idle to drain the battery

Latest stats

Idle drain

Big Overnight Battery Drain

The first screenshot is my battery life and as you can see Doze was applied but it still drained 10% in 8 hours. In the second screenshot of Better Battery Stats, it shows I have a lot of the phone being awake while the screen is off.
How can I figure out what is causing it to be awake and fix it?
Please let me know if you need other sections of battery stats or anything. Thanks

NateDev said:
The first screenshot is my battery life and as you can see Doze was applied but it still drained 10% in 8 hours. In the second screenshot of Better Battery Stats, it shows I have a lot of the phone being awake while the screen is off.
How can I figure out what is causing it to be awake and fix it?
Please let me know if you need other sections of battery stats or anything. Thanks
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Click to collapse
still facing 10% drain overnight on oos 10.0.3, no wifi, no bluetooth, no location, no mobile data still getting that much drain!
Please Help

aaryan45 said:
still facing 10% drain overnight on oos 10.0.3, no wifi, no bluetooth, no location, no mobile data still getting that much drain!
Please Help
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same things , im on on 10.3. it was pretty good during fresh install like 2 % in 6-7 hr. now 10% overnight drain everything off

PlusBeat installed? Had the same issue. No drain with it under 9, high drain under 10. BBS did not show this app. Found it only after freezing one app after another.

I really can't understand how you guys end up with these drains. Since I rooted I've taken about 7 updates to 10.0.2 , never wiped my phone and never encounter that type of idle drain. Check my screenshot it shows 0% drain in 6hrs with only 10% deep sleep which makes no sense at all. What's crazy is im trying to perform a battery test to get to 10hrs SOT with regular use but my uptime won't be accounted for in the battery menu because it starts calculating after you lose one percent. Thus the discrepancy in the screenshots

Some app is preventing your device from going into deep sleep. Facebook was the culprit for me.

Do you have a custom kernel installed? Something changed in a recent update & there's a service that goes haywire if you have a custom kernel & keeps one CPU core at 100% constantly. I found it in system logs as "vendor.oneplus.hardware.brain". My idle drain was over 4%/hr till I figured it out. See this post for how to stop it:
https://forum.xda-developers.com/showpost.php?p=81196197&postcount=563