After switching my wifes EVO to RC2, SZ 0.2.1, baseband 09.01 she had her battery die in less than 5 hours with almost no real usage.
When I looked at her battery stats it said this,
android system 30%
cell standby 23%
phone idle 19%
wifi 10%
display 9%
android os 5%
voice calls 5%
I have never seen the "android system" use that much battery.. its usually in the bottom of the usage stats. Can someone tell me what can be causing this?
Thanks!
Hi, my screen on my new phone shows as using 49% of battery, which seems a little low compared to my previous phone which would have that value at about 70%. I'm wondering if 'Android OS' at 16% is abnormally high, or is this normal?
Also, is it possible that keeping wifi on while screen is off would cause the phone to stay awake?
I am seen huge battery drain on Nexus 7 2013 after flashing Android 6.0 factory image. Even battery usage option screen gives strange result. For example -- Total battery % used by all the apps just show 9%, while total battery left is only 73% after fully charging of 100%. So where is the remaining battery of 18% gone, which is not even showing up in battery uses option screen?
Attached herewith is screenshot of battery usage screen. And I really notice huge battery drain with Android 6.0 as compared to earlier Android 5.1.1.
Please help and let me know.
You're estimated time left @73% is 3 days, which means your tablet has been on and not charged in awhile. Nothing in your battery stats indicates any battery drain at all.
Sent from my Nexus 7 using Tapatalk
It just says 3 days remaining. But practically this never happens. Now overnight there is 30% battery drain without having used the tablet and it says now 43% battery remaining and one day left. And total usage mentioned by apps in battery usage screen is not even more than 15% now also. And if you add actual battery usage of all apps by clicking the indivisual battery usage details, total usage is not even 500 mAh. I believe Total Nexus 7 battery capacity is around 4000mAh.
So where is the battery use and drain is happening? This behavior I am seeing is after upgrading to Android 6.0.
I've got quite a bit of mystery drain as well. It runs flat for a little while when the display is off and it is idle for a long time, then suddenly it will just start draining ~2% per hour. The wifi lists as always on even though the policy is "Never". I have location services off, bluetooth off, NFC is off. Even more fun I put the tablet down 2 days ago at 75% battery and I picked it up this morning I picked it up and it was dead. No battery log at all either.
Hmm. I'm running stock rooted with ElementalX, and haven't had any battery issues.
Sent from my HTC6525LVW using Tapatalk
Exactly the same issue here. Battery drains fast but battery stats shows no abnormality. I work for an Android phone manufacturer. My colleague who is in charge of the battery thing guesses some hardware module might have current leakage in sleep mode which software cannot detect.
I have wiped cache partition and now see massive battery usage by WiFi after overnight. Looks to be problem stated in the thread https://productforums.google.com/forum/#!topic/nexus/NB0izQHuBaU;context-place=forum/nexus
Though this issue is raised for Nexus 5, I think it applies to Nexus 7 2013 Android 6.0 also.
You are not alone. My Nexus 7 is currently chewing through it's battery at a rate of knots. Even with the screen off it continues to use the battery as if it were on all the time. After wiping the cache partition things have become even weirder. Apps that have not been opened are using large percentages of the battery. I can barely get a few screen hours out of it.
Wondering if this thread has so few replies because people are checking the general section and seeing nothing about the issue so think it's just them?
The information on battery usage is so weird it's hard to believe that it's producing any useful or meaningful data.
Even I am surprised that no battery drain issue for Android 6.0 is reported for Nexus 7 2013 in this forum and not many members have replied to this thread.
Anyway for me it is a serious issue with absolutely no advantage in any sense for upgrading from Android 5.1.1 to Android 6.0 for Nexus 7 2013.
Here is one more screenshot of battery drain with no battery accounted for 27% (48% total battery drained - 21% battery used by apps reporting in attached screenshot).
I hope at least Google Android team is aware of this issue and knows how to resolve it.
Still amazed that there are only a handful of replies to this thread.
Got the System Update notification today. Size is of 2.2 MB. Downloaded but unfortunately battery charge was not enough to do the OTA install. Will charge the Nexus 7 2013 and install the OTA update. Let us hope that this OTA has fix for this battery drain issue. Will check and let you all know tomorrow.
Even new factory image for Android 6.0.0 build MRA58U is available now.
Same issue of battery drain with MRA58U OTA update also. 20% battery drained out during night within 7 hours when Nexus 7 2013 was idle without any activity.
Same issue here. Flashed 6.0 last weekend. 2/3% idle drain an hour while everything (bt, location, syncs, nfc) is off except wifi. Wifi keeps connected while set to go off when screen off. SoT off course hours less with the idle drain.
Same Issue battery Drain
Same issue battery drain ....i hope the lattest update send me by OTA this week resolves the problem...
I'm seeing great battery life now without root and Greenify or any third party solution but I have problems with the stats. If I let my n7 drain completely and charge it to 100% while shutdown I get +10h SOT (lowest brightness) but if I charge it from 1% without being shutdown I only get 8h SOT. Huge inconsistency in the stats, it's like the system misinterprets the stats and need a reset after every charge.
Hi!
I'm having the same problem with huge battery drain in sleep mode with my nexus 7 2013 after the update to android 6.0.1.
It is using 2-3% of battery per hour when in sleep mode, but the problem is, nothing is indicating what is causing this drain (in battery usage stats everything show as normal - no huge battery drain by the app or wifi, but something is still draining battery).
Prior to the update (Android 5) i was losing maybe 5-6% per 12 hours at most (cca. 0.5% per hour) and the tablet would last 3-4 days, now I have to charge it almost daily.
Any more news on this issue or possible solutions?
Thanks.
Nexus 7 2013 lte android 6.0.1 battery drain for me....
+1
I just turn off the wifi icon from the Quick Settings.
6.0.1 nexus 7 2013 wifi.
I downgrade to kitkat 4.4.2 and my nexus after 24 hours in standby only drain 12% battery......the problem are android 5 and 6 the tab work great and faster whit kitkat no lag or other problem
Very bad google policy
I've been noticing my battery draining very quickly for the past couple of days.
I looked at my battery usage and it's telling me that Android System used 49% of my battery. My screen usage is only at 58 minutes and I only have 19%battery left today.
I am using an unmodded 5t on 5.0.4 and would appreciate some help.
Thanks
Since the update to FVC7 my battery drains much faster than usual. During the 6-7 night hours it loose abt 10% and after around 8-9 hours of moderate use the battery rich around 20-25%. Better battery stats does not show any thing unusual.
any help will be appreciated.
I only noticed that Screen On time drains battery like crazy just having Display set to 1080p (Medium) and refresh rate on 60Hz (low).
For me it's "only" the display that drains battery very hard. Screen off time is pretty good, but I have a lot of Apps in Standby and Deep Standby.
But BBS was never adapted to Android 12 and Samsungs on Battery service is missing a lot. Look into RAM optimization which Apps are popping up that shouldn't do. Even if it's very low on RAM, if it's an App that hadn't been used since last boot and doesn't need to work in background, than it should go directly to Standby or Deep Standby.
I might be off, but as I'm looking at it: With (Deep) Standby option, Android 12 finally adopted Greenify a long missing feature on every Anroid OS.