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I have had my tablet off the charger now for 1 day 14 hours and I have 61% battery left. I have used it periodically to read the paper and check email over the course of the least two days.
My settings include auto brightness, screen sleep after 10 minutes and wifi always on. I let the tab go to sleep on its own.. I do not force it with the power button. I revive it with the volume control.
I am running for months now tnt 4.1.0
I am not sure why there are complaints about a true "standby" or sleep state as I can not expect any better always on battery life than this.
insight3fl said:
I have had my tablet off the charger now for 1 day 14 hours and I have 61% battery left. I have used it periodically to read the paper and check email over the course of the least two days.
My settings include auto brightness, screen sleep after 10 minutes and wifi always on. I let the tab go to sleep on its own.. I do not force it with the power button. I revive it with the volume control.
I am running for months now tnt 4.1.0
I am not sure why there are complaints about a true "standby" or sleep state as I can not expect any better always on battery life than this.
Click to expand...
Click to collapse
There are two levels of sleep. Screen off but CPU on and wifi on will run about 3% per hour. If you run the stock rom and let it go into deep sleep it will halt the CPU and shut down wifi after 2 minuets or so, and in that state it should burn about 1% per hour. It wont do alarms or reminders or check emails when in deep sleep.
So you can go about 33 hours without deep sleep. Or pretty much one day of use with alarms/alerts/push email. Or 3 days and off and on use with deep sleep. I prefer the one without deep sleep. I just charge it every night. I agree though, in with case it seems fine to me.
There are so many threads on this issue... it'd be good for the mods to combine them or lock/link to one master? Much like the 96% issue... both need dev attention and less General threads!
I have raised a bug with CM7 on the idle power problem. Idle power usage is huge compared to other devices. Hopefully this can be fixed...
http://code.google.com/p/cyanogenmod/issues/detail?id=3714
galapogos01 said:
There are so many threads on this issue... it'd be good for the mods to combine them or lock/link to one master? Much like the 96% issue... both need dev attention and less General threads!
I have raised a bug with CM7 on the idle power problem. Idle power usage is huge compared to other devices. Hopefully this can be fixed...
http://code.google.com/p/cyanogenmod/issues/detail?id=3714
Click to expand...
Click to collapse
"Currentwidget shows >300ma power usage at idle" from your report... do you happen to have the OC pegged high in SetCPU? Because wifi on, bt off, idle/screen on should be in the low 200s (214mhz clock scale) and wifi on, bt off, idle/screen off should come in at 100-120.
This isn't a "dev" issue - it's a hardware design issue. The gtab isn't designed for long standby, no amount of dev attention will fix that. 100ma seems to be the floor (with wifi on.)
schettj said:
"Currentwidget shows >300ma power usage at idle" from your report... do you happen to have the OC pegged high in SetCPU? Because wifi on, bt off, idle/screen on should be in the low 200s (214mhz clock scale) and wifi on, bt off, idle/screen off should come in at 100-120.
This isn't a "dev" issue - it's a hardware design issue. The gtab isn't designed for long standby, no amount of dev attention will fix that. 100ma seems to be the floor (with wifi on.)
Click to expand...
Click to collapse
I agree, I can go about 30 hours before I have to charge it again. I do let it sleep but keep the wifi active as it has issues otherwise. It is a hardware limitation on the device not a dev issue.
schettj said:
"Currentwidget shows >300ma power usage at idle" from your report... do you happen to have the OC pegged high in SetCPU? Because wifi on, bt off, idle/screen on should be in the low 200s (214mhz clock scale) and wifi on, bt off, idle/screen off should come in at 100-120.
This isn't a "dev" issue - it's a hardware design issue. The gtab isn't designed for long standby, no amount of dev attention will fix that. 100ma seems to be the floor (with wifi on.)
Click to expand...
Click to collapse
This was with wifi on, bt off, screen on auto brightness, cpu pegged to 214mhz with screen off, pershoot kernel.
I disagree that it's not a developer issue. Based on my experience with Android on the HD2, a lot of the battery usage issues eventually came down to kernel optimisation -- incorrect GPIOs causing devices/sensors to remain on when the kernel thought they were off, high bt idle drain, incorrect voltages against cpu speeds in the scaling tables, backlight driver loops, etc. I do not think this is related to the device itself.
I can get ~48 hours standby, but this thing should be measuring standby in weeks, not days. My HD2 can get >2 days standby, probably 4 or 5 in airplane mode. It draws 3ma!
Cheers,
Jason
galapogos01 said:
It draws 3ma!
Click to expand...
Click to collapse
Right - that would be a firmware deep sleep, where the firmware halts the cpu, and powers down hardware.
Note that when cpu halt ends the control of the OS right there.
The gtab's "deep sleep" isn't a whole lot better than "screen off, cpu lowest speed." No amount of kernel work is going to fix that.
Running VEGAN Ginger Edition, I get a full 8 hour work days use at the cost of about 20% battery life, probably about 6 hours of that is idling, the other two are browsing the web / goofing off playing Meteors or something.
Hi,
I got an I9108 recently (from China Mobile). Found a very serious and strange battery drain issue. The phone works normal at day time. but at night, 8 hours stanby can eat 50-60% of my battery, for both of my batteries. Had a check by the service center, they siad the phone has no issue, and gave me two brand new batteries, problem still exist. I turned off almost everything: Wifi, GPS, background update, GSM data, etc. Battery usages shows Android OS is eating >80%.
One funny thing I noticed is: if I put the phone in a warm environment (say in quilt when sleeping), the battery drain seems to be normal: around 5% for 8 hours stanby.
I installed Battery Monitor Widget, and set current monitor to be every 5 minutes. I noticed that normal standby (day time, it is normally warm as I will put the phone in my pocket) current is around 5-10ma. When making a call, the current is around 25-40ma. But at mid night (realtively cold, may 10-15C), the current can easily be 50-60ma (not evry minute). So basically night time stanby is consuming more battery than a call.
Anyone see similar issue before? Any solution? Help is great appreciated.
Find/install BetterBatteryStats (thread on here or Market). Allow your phone to run overnight/for at least a couple of hours with it installed.
Read the first 10 pages/last 10 pages of the BBS thread on here so you have an idea of the info the guys on the thread will need from you in order to identify what's causing this drain & help you possibly improve this battery drain issue.
Ok, I've download BetterBatteryStats. will let it run for today and send updates tomorrow.
Looks to me the issue does not seem to be App related. Since it goes with working temperature, may it be possible that at night CPU just could not down the frequency to 300MHz but just keep working at 1200MHz?
anyway, will see how it goes for tonight.
Had it run for a night. Found partial wakelock: RIJL, ActivityManager and Alarm Manager are the tops 3, but all below 1.5%. AlarmManager seems to have a lot of count though (>2000)
For Kernal Wakelock, found samsung-battery is the one using 35%.
How should I fix it?
Ask in the BBS thread on here (search for it).
Got my issued solved by replacing the MB. Now stanby battery drain down to 5-8% for a night (8-10 hours).
Thanks for help anyway
The mediapad is my first tablet. I just bought a second hand one, and two things trouble me:
1) The RAM in active processes is displayed as 512, should it not be 1GB?
2) battery life seems too low, something along the lines of 3 hours of mainly google play use. I have high resolution set, active wifi, had no sim inserted, though plane mode was not activated.
A lot of devices display less memory than you think they should, it's ok don't worry.
Yes the battery does not last very long...
Sent from my HUAWEI MediaPad using Tapatalk 2
mediapad battery life
If you go to settings/applications/running services you should see bar at the bottom of the screen indicating free and used ram. Mine is standing at 191MB used and 434MB free at the moment.
I was going to ask about battery life myself, so here is a question for all other mediapad users: How much "screen on" time do you get per charge?
No matter what I do, I can't even get close to 6 hours that are specified.
The best I got was 5:15, and that was offline (wifi and 3G), brightness on minimum (bedtime reading), JuiceDefender on.
Only apps I was using were Adobe Reader, ComicRack and Amazon Kindle.
If I use Opera, Facebook, YouTube, StumbleUpon, News360, I get about 4 hours of "screen on" time.
When I look at battery usage breakdown in settings, display or wifi are never at the top. Usually there is AndroidOS or Android System, followed by some of the apps I was using.
If I play GTA3 (ver1.3 works great btw), it drains about 20% per 15 minutes of playtime.
On occasion it happens that battery drains at usual rate to about 15%, and then the shutdown countdown begins, as battery drops from ~15% to zero instantly.
Also, sometimes when it drops to 20% goes back to 30%, then from 10% goes back to 20% and from there drains to zero normally. It drives me crazy as I'm never sure how much juice I have left.
Tried to use Battery Calibrator app, but still the problem still persists. Can't root, still have year of warranty left.
Do you guys have any similar issues, how do you cope? And don't forget to tell us your "screen on" times and typical usage.
Thanks!
I know this might be somewhat of a gravedig but I really need to correct things a bit...
With WiFi on, screen brightness down and constant screen on + surfing / reading I was able to squeeze out 7 hours and 10 minutes out of the battery, starting at 100%...
The battery really is awesome! Just make sure to turn off things you dont need (Bluetooth, GPS, 3G / Mobile Data, Screen Brightness).
I'm surprised, in a positive way.
The only problem I got is with the touchscreen shaking and at times not taking my taps.
Hey guys, I am having a problem with my Amaze, more specifically, the battery is dying absolutely WAY to quickly. For example, yesterday morning, after unplugging my fully charged phone, I dropped it straight into my pocket, and maybe looked at it twice the entire day. When I pull it it at the end of the day, the battery is red, with 8% left. If I were to be using it, the battery would last about 30 minutes on a full charge, most likely. I've also noticed that the phone is really hot, even in my pocket. If it helps, I am on ICS and have been using it since it was leaked in April, however, this problem is new (about 2 days ago is when it first started), as I usually get about 8-10 hours with moderate usage. Can you guys please help me? Thanks!
Well if it just started happening recently, and you haven't made any changes, then the battery may just be going bad... If that's the case, you can call HTC and they will send you one free replacement.
sent from my NRGized Amaze,
powered by faux kernel v.10
could be just the battery.. but if you don't mind me asking - how long have you owned the device? I suggest you dl JuiceDefender from the playstore and see if that helps - Definitely helps my device get through the day with moderate use and one time charge every 1 1/4 a day but this could vary on owners usage. Also, check your settings to conserve battery life such as turning off wifi, gps, auto syncs on your fb, gmail etc. and adjust your brightness to the lowest if possible and OH... less widgets and windows > less power that the battery consumes. Hope that helps!
b33j7030 said:
could be just the battery.. but if you don't mind me asking - how long have you owned the device? I suggest you dl JuiceDefender from the playstore and see if that helps - Definitely helps my device get through the day with moderate use and one time charge every 1 1/4 a day but this could vary on owners usage. Also, check your settings to conserve battery life such as turning off wifi, gps, auto syncs on your fb, gmail etc. and adjust your brightness to the lowest if possible and OH... less widgets and windows > less power that the battery consumes. Hope that helps!
Click to expand...
Click to collapse
Like I said, this just started happening. I didn't just decide to leave all my wifi and GPS and Bluetooth on all day. Also, to answer your question, I've had it since the beginning of the year. I think it's just the battery. I'll call HTC and report back.
cool.. i'm hoping its just the battery.
b33j7030 said:
cool.. i'm hoping its just the battery.
Click to expand...
Click to collapse
Thanks. The overheating does concern me a bit, however.
HarryHyper said:
Thanks. The overheating does concern me a bit, however.
Click to expand...
Click to collapse
you're not alone in that dept but its highly tolerable... look on the bright side.. least you'll have a pocket warmer during WINTER lol
b33j7030 said:
you're not alone in that dept but its highly tolerable... look on the bright side.. least you'll have a pocket warmer during WINTER lol
Click to expand...
Click to collapse
LOL.
Alright guys, looks like it solved itself. Interesting...
I usually only get 6-8 hours on my battery, and its been like that from the beginning. is there something wrong with my phone then?
erkk_69 said:
I usually only get 6-8 hours on my battery, and its been like that from the beginning. is there something wrong with my phone then?
Click to expand...
Click to collapse
Nope, battery life isn't that great with this phone, depending on how much you use your phone and what all you use it for you will get any where from 6-14 hrs + or - some. Also your Rom and kernel will make a difference..
sent from my NRGized Amaze,
powered by faux kernel v.10
I find usually its the user when it comes to battery I get roughly 20 hours with regular use
Sent from my HTC_Amaze_4G using xda premium
HarryHyper said:
Alright guys, looks like it solved itself. Interesting...
Click to expand...
Click to collapse
Nice!... Glad to hear
This happens to me from time to time, and the phone is ALWAYS hot when this happens.
What I've come to discover that it's usually something that' activating the phone while asleep.
The phone is hot, because the processor is being used. That's why the battery is completely dead so quickly, something is pulling it out of deep sleep and causing it to run full bore. The key sign is the phone is hot.
I recommend you get an app that lets you see wakelocks, and what's keeping the phone awake etc (I use GSAM battery monitor) Whenever I notice my phone becoming hot for no apparent reason, I know for a FACT that my battery will be dead in a matter of hours. Lately it has been "Android System" that's the culprit, and I can't quite nail down what is doing it, but it's very random and not much of a problem because I do a reboot and things are back to normal.
First, try to reboot your phone. Get system tuner and see what processes are using the processor when the phone is hot (make sure you show ALL processes, even the default excluded ones). Check the wakelocks. Get battery monitor and check the mA usage (it keeps a running history). When my phone is running optimally, I have a mA drain of around 70-90mA when screen off/deep sleep, and it should maintain this type of drain... when my phone is becoming hot for no reason, I see numbers anywhere from 300-600mA drain for no apparent reason. A lot of the time there was an APP that was offending, so I would first check that. Like I said though lately it has been "Android System" and it's kind of hard to nail that down, but it's so random.
When my phone is cool to the touch most of the time, I know it's running optimally because it's achieving deep sleep. I've found a lot of it has to do with what you had running before you turn the screen off. A reboot ALWAYS fixes it for me. If you can't seem to nail down the offending app, do a full reset back to stock and you should notice that your phone runs very very cool when the screen is off and it's sleeping. I usually get anywhere from 24hrs-2 days of moderate use with the screen off governor set to conservative, and maximum clock for screen off ~600mHZ. I use interactive governor for screen on, but that's for responsiveness and you'll probably have better luck with ondemand for battery life. YOu can set these in System Tuner.
Just remember, if the phone is HOT, it's using energy. If it's hot, something, somewhere, is causing the processor to run at a high clock frequency. If the phone is HOT after being in your pocket/screen off for a good amount of time, something is definitely wrong/rogue app. The phone should never be hot returning from deep sleep. I bet if you check your default battery monitor (The android one) you'll notice that the bar for AWAKE is probably almost solid blue, something is preventing it from going into deep sleep. If I notice my phone is hot when I take it out of my pocket, I immediately know that something isn't right. This should NOT happen.
sportsstar89 said:
I find usually its the user when it comes to battery I get roughly 20 hours with regular use
Sent from my HTC_Amaze_4G using xda premium
Click to expand...
Click to collapse
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
ericdjobs said:
This happens to me from time to time, and the phone is ALWAYS hot when this happens.
What I've come to discover that it's usually something that' activating the phone while asleep.
The phone is hot, because the processor is being used. That's why the battery is completely dead so quickly, something is pulling it out of deep sleep and causing it to run full bore. The key sign is the phone is hot.
I recommend you get an app that lets you see wakelocks, and what's keeping the phone awake etc (I use GSAM battery monitor) Whenever I notice my phone becoming hot for no apparent reason, I know for a FACT that my battery will be dead in a matter of hours. Lately it has been "Android System" that's the culprit, and I can't quite nail down what is doing it, but it's very random and not much of a problem because I do a reboot and things are back to normal.
First, try to reboot your phone. Get system tuner and see what processes are using the processor when the phone is hot (make sure you show ALL processes, even the default excluded ones). Check the wakelocks. Get battery monitor and check the mA usage (it keeps a running history). When my phone is running optimally, I have a mA drain of around 70-90mA when screen off/deep sleep, and it should maintain this type of drain... when my phone is becoming hot for no reason, I see numbers anywhere from 300-600mA drain for no apparent reason. A lot of the time there was an APP that was offending, so I would first check that. Like I said though lately it has been "Android System" and it's kind of hard to nail that down, but it's so random.
When my phone is cool to the touch most of the time, I know it's running optimally because it's achieving deep sleep. I've found a lot of it has to do with what you had running before you turn the screen off. A reboot ALWAYS fixes it for me. If you can't seem to nail down the offending app, do a full reset back to stock and you should notice that your phone runs very very cool when the screen is off and it's sleeping. I usually get anywhere from 24hrs-2 days of moderate use with the screen off governor set to conservative, and maximum clock for screen off ~600mHZ. I use interactive governor for screen on, but that's for responsiveness and you'll probably have better luck with ondemand for battery life. YOu can set these in System Tuner.
Just remember, if the phone is HOT, it's using energy. If it's hot, something, somewhere, is causing the processor to run at a high clock frequency. If the phone is HOT after being in your pocket/screen off for a good amount of time, something is definitely wrong/rogue app. The phone should never be hot returning from deep sleep. I bet if you check your default battery monitor (The android one) you'll notice that the bar for AWAKE is probably almost solid blue, something is preventing it from going into deep sleep. If I notice my phone is hot when I take it out of my pocket, I immediately know that something isn't right. This should NOT happen.
Click to expand...
Click to collapse
what program do you use to measure battery drain? I use Battery Monitor Widget, but it's not giving me an accurate answer (lets say I had the phone on idle w/o data/sync... the available % is stable over 5 hours (~1% loss per hour), but the current usage says at least -100mAh)
for me, the idle battery drain (apps autosyncing/using data) is the problem
I see my device properly going to sleep (deep sleep is the majority of the usage, not too many wakelocks/processes.....)
with data off and sync off, idle battery usage goes to a minimum
paperWastage said:
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
what program do you use to measure battery drain? I use Battery Monitor Widget, but it's not giving me an accurate answer (lets say I had the phone on idle w/o data/sync... the available % is stable over 5 hours (~1% loss per hour), but the current usage says at least -100mAh)
for me, the idle battery drain (apps autosyncing/using data) is the problem
I see my device properly going to sleep (deep sleep is the majority of the usage, not too many wakelocks/processes.....)
with data off and sync off, idle battery usage goes to a minimum
Click to expand...
Click to collapse
I use battery monitor widget to measure drain.. as far as accuracy, I'm not sure? I don't know if it's EXACT but it seems to be a pretty good indicator of drain. When in deep sleep the phone usually measures anywhere from 70~mA-120mA. Usually it stays below 100. Before I changed the screen off governor / max freq (screen off) it was almost always 100+. Screen off governor is conservative with a max freq of ~600MHz.
I have no idea how exact it is, but when it's reporting ~300mA, my battery is definitely draining much faster.. and when it's reporting 500-900mA~ my battery is draining incredibly fast, so it at least seems to be a solid indicator of current usage.
ericdjobs said:
I use battery monitor widget to measure drain.. as far as accuracy, I'm not sure? I don't know if it's EXACT but it seems to be a pretty good indicator of drain. When in deep sleep the phone usually measures anywhere from 70~mA-120mA. Usually it stays below 100. Before I changed the screen off governor / max freq (screen off) it was almost always 100+. Screen off governor is conservative with a max freq of ~600MHz.
I have no idea how exact it is, but when it's reporting ~300mA, my battery is definitely draining much faster.. and when it's reporting 500-900mA~ my battery is draining incredibly fast, so it at least seems to be a solid indicator of current usage.
Click to expand...
Click to collapse
On my previous phone (LG Optimus T / Optimus One/ P509, CM9 ICS ROM), Battery Monitor Widget reports more accurate readings (idle with data off= -2mA or -20mA<dont remember>, accurately representing that 1% of battery would last at least 2 hours)
Phone with the new kernel (KozmiK Ruby -0.5a) still goes battery drain crazy (even with Juice Defender installed now).... I hit 10%, then got fed up, turned off data... then the phone slowly sipped battery for the next 3 hours going down only 1%.... sigh
I think Facebook Messenger is the data hogger in my case, since I do use it often... will try a new ROM build without logging onto facebook messenger, see how it goes
paperWastage said:
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
Click to expand...
Click to collapse
What you said is true, at least for data on - autosync on. My battery last around 10 hours idle + 3.5 - 4 hours on screen usage. It seems that autosync eats a lot of battery. Will try to turn that monster off and see how much it will improve. I have bad habit to push refresh button on gmail/facebook widget, even with autosync on,
I used to get 14-16 hours. Now my battery won't last more than 6 hours. I gotta replace my Anker
Sent From My HTC Amaze 4G via Someone's Room
Most recently I got 1 day and five hours with a fair amount of use by using faux 011 kernel and using CPU editor script to set it to battery saving profile. I'm at 45% right now with fairly heavy use after over 18 hours.
Battery life is totally under your control, it takes some work to get it where you want it.. but you also have the option of buying a bigger anker battery with external charger for $20 and carrying that spare battery, and simply not giving a damn.
Just saying, battery doesn't have to matter for a very small price and a little space to carry the spare battery in your pocket.
Sent from my HTC_Amaze_4G using xda app-developers app
When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Moto Z's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Pretty good
Lost 3% on standby during 8 hours through the night.
Now that I'm on nougat, I'm losing about 8% over a 7 hour period
Not all cores stay in deep sleep when the screen is off.
I am seeing about 50% at 652MHz and 50% Deep Sleep when the screen off. I am not sure if this is expected.
I am also losing about 1% / hour in standby with the latest Nougat Update.
I just got it so I can't compare before & after.
1 percent per hour can be completely normal depending on someone's setup, apps install, signal strength, etc.
Most phones I've ever owned are about that or just under. Only my Nexus 7 2012 was way lower. About 0.4% per hour.
1 percent per hour is definitely not anything to be too concerned with honestly.
I'd start with CPU spy or a similar app, to see if your phone is actually in deep sleep when not used. If not, then you could have an issue.
i am extremely satisfied with stock(everything stock unrooted,locked bl) standby drain. I don't use Approach, Attentive Display and Notification Display in Moto app.
Wifi ON : 3% over 7 hours sleep
Wifi OFF : 1% over 6 hours sleep
Data(3G) ON : 7% over 5 hours sleep
Since N7 update, getting very bad idle drain.
Losing 28% during 7 Hrs overnight (>4%/Hr) and the BBS logs don't show any major issues.
Posting my logs here hoping a fresh pair of eyes can locate any anomalies I missed.
You might have bad reception in the place you have your phone. Check settings>battery> click on graph>cellular network signal. If the bar is red/ orange or has many small red lines you might be located between two towers.
Try switching to 3G or 2G overnight and if there is a dramatic difference it will confirm its signal-related battery drain.
Vcek said:
You might have bad reception in the place you have your phone. Check settings>battery> click on graph>cellular network signal. If the bar is red/ orange or has many small red lines you might be located between two towers.
Try switching to 3G or 2G overnight and if there is a dramatic difference it will confirm its signal-related battery drain.
Click to expand...
Click to collapse
Just an update; I used a Tasker profile to disable WiFi and Bluetooth when Display is off between 11 PM to 6 AM (my approx. sleep window). This has brought down the Idle consumption during night to 0.8%/Hr suggesting at-least one of them to be the reason for abnormal drain. I think the WiFi or Bluetooth modules in the Nougat update may not be fully optimised. I intend to test with only one of them turned OFF alternatively over next two nights and locate the real culprit.
Of course this does not help me during the day when both WiFi and Bluetooth have to be kept ON as I can't be bothered to turn them On/Off frequently whenever I start/stop listening to music or connect/disconnect to work WiFi. I'll explore if I can write Tasker profiles to switch them On/Off based on location, proximity to work WiFi AP and music steaming status.
Also, as suggested by @Vcek above, I can see some orange bars in the battery graph overnight indicating signal issues at my home location which may also be adding to the increased drain.
Overall I am sufficiently comfortable now knowing what is causing the increased drain and having at least some level of control over it.
My phone still open when i asleep .
Hmm..
I've been thinking about this as well in the first week of owning the phone. I leave out at 530am and get back around 6pm and am sitting around 50% (not bad, don't get me wrong). But the 2 year old phone it replaced would still be at ~40% in the same day.
It's better, don't get me wrong, just not as much as I figured.