So i notice a problem, sometimes i don't know why how my phone got turned on, and it stays on without going back to sleep or anything. It literally drains my battery from a full charge to 50% in less than 4 hours. I dont know whats causing it, but initially i thought it could be the GO SMS because i allowed it to turn on whenever i got a msg, ( really like iphone that pop msgs) but i dont think its the case cause my phone to turn on.
Check your display settings. You might have set the screen time to more than xx seconds/minutes.
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Are you running a custom ROM or kernel?
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Related
With your wifi only N7, how have you configured the "wifi on during sleep" setting?
Personally i chose never because i rely on my phone for notifications and my N7 stays at home at all times, so no need for wifi to be on all day.
I'm set to always, as I often leave things downloading while I do other things.
Sorry, can't see the poll via tapatalk
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I'm also an always on'er. Battery life is good enough that I don't find any issues with it.
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I set it to never. Phone for notifications etc. If the n7 is around just pick it up and use it.
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I had tried the never rule so that it would switch off during sleep but it seemed to stay awake. But now i use automate it app to switch WiFi off when the screen goes off, with a 5 min delay, its also set to come back on when three screen is switched on again, works perfectly.
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So I have a Nexus 7 and an S3, the former becoming recently rather redundant as I got the new iPad (was tired of lack of optimised tablet apps). I still, however, love the form factor when reading and this I do relatively frequently, maybe 3-4 times a week.
The form factor is also useful when I just want to pop out for a bit and feel like taking it with me, whereas the static iPad I tend to keep either at home or take to university with me.
The only issue is due to me using the nexus less, i am less aware of how much charge it holds. And the standby battery is terrible compared to the iPad, which I can honestly say would last about a month if I wasn't using it.
Is there anything I can do to my tablet to maybe tone down the CPU when not in use or maybe disable internet connection when not in use, as I'm sure these two things may be affecting the battery when it shouldn't.
I don't need my tablet to constantly be up to date the second I turn it on I wouldn't mind if it took a minute or so to show me new updates / emails e.t.c.
Thanks!
Keep WiFi and sync off. I don't keep WiFi or sync on (my g'nex keeps me up to date) and my standby battery is good. Never left it sitting for a full day but over 12 hours I only lose 2-3%.
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used power toggles to turn sync off, but out of curiosity where is the normal menu option for it?
cheers for that, 5% a day is absolutely fine!
They made this one hard to find. Settings > Data usage > Menu options (3 vertical dots in upper right) > Auto-sync data (put check mark). It's really a pain. I use Notification Toggle to have an option to toggle it from my notifications pull-down shade.
just turn it off if your not using it or set your tablet to sleep mode
If your device is rooted use set CPU and use profiles so you can make you processor only do like 50mhz when the device is on sleep
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AZA5 said:
If your device is rooted use set CPU and use profiles so you can make you processor only do like 50mhz when the device is on sleep
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My phone wouldn't wake back up when I did that... Lowest I got it at was around 300 MHz
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What do you mean your phone? Aren't you talking about nexus 7?
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Using Deep Sleep Battery Saver to extend battery life
https://play.google.com/store/apps/details?id=com.rootuninstaller.batrsaver
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I wouldn't be using any of these battery saving apps as most cause more battery drainage than they save.
BetterBatteryStats is the only app you need, free on XDA but support the developer by buying it on Google Play it really is a great app for the small price,and will identify the main battery hogs without using hardly any itself
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I just got my nexus 4.
Last night I charged the phone completely, disconnected if from charger and turned the phone off.
This morning when I turned it on the battery was drained 15% down to 75%
Does anyone else have this problem?
Defect with phone?
Thanks for help.
You have to let the battery settle and let the battery stats calibrate. The % that you had after rebooting is what you really have. The first time it wadjt showing the right amount.
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android88 said:
You have to let the battery settle and let the battery stats calibrate. The % that you had after rebooting is what you really have. The first time it wadjt showing the right amount.
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He said he turned his phone off...
I don't see how it can lose 15% if it is completely shut off. That's weird.
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Crisisx1 said:
He said he turned his phone off...
I don't see how it can lose 15% if it is completely shut off. That's weird.
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Then when he turned it on, he "lost" 15%. Like I said in my post, what it said before he turned it off was wrong. He didn't really lose 15%. It was just displaying the wrong thing.
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You might have some apps running in the background that is preventing your device from going to deep sleep to conserve power. Check what's running in the background when your phone is off. You can use better battery stats app to check what's consuming your battery level.
Are your running a custom kernel? I've heard of a few cases with kernels where even though the phone is sleep and screen off just touching the screen will cause battery drain.
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I'm guessing you either meant it was at 85% or drained 25% down to 75
Either way this is common on a lot of phones now due to the way the battery gauge works. When you turn your phone off then on it doesn't always remember where it was so gives a value and then if it's under where it should be it soon recalculates and can either starts going up or stays on the same value for a long time. This has happened on both my old SGS2 and also my N4 for example this morning while my phone was being drained by the FB app keeping GPS on, I turned off location access and then restarted my phone which dropped a few extra % and then sat for a good few hours at that % even though I used my phone.
Moral to the story is don't always take what you see as true, give it time to settle and see how it goes over a few charging cycles.
Like this?
http://www.youtube.com/watch?v=4sGNwF_G16s
Mine was and at first I blamed the case. But it does it with every case. So i was thinking of returning it. But then I got this email from Poetic(i had slammed them on Amazon with a one star rating). It said:
We would also like to inform you that if you face any issue regarding wake up function mostly when you open the case we request you to please check your WIFI Connection (to make sure you are successfully connected to WIFI). If your WIFI connection is disabled or not connected to WIFI Successfully, then your device won’t wake up all the times. This is not the issue of the case itself.
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I tried turning my WIFI on and connecting, but it did not help. Then I tried with it off. Same problem. Now I am thinking I really need to return this thing, only to find out my friends does the same exact thing. So what the hell? Are they all doing this? Most? Only a few? I really do not want to return if all of them are gonna do it, and it would seem a software issue in that case. But if mines got hardware problems I really should return it.
My case has been working fine.
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Landara said:
Like this?
http://www.youtube.com/watch?v=4sGNwF_G16s
Mine was and at first I blamed the case. But it does it with every case. So i was thinking of returning it. But then I got this email from Poetic(i had slammed them on Amazon with a one star rating). It said:
I tried turning my WIFI on and connecting, but it did not help. Then I tried with it off. Same problem. Now I am thinking I really need to return this thing, only to find out my friends does the same exact thing. So what the hell? Are they all doing this? Most? Only a few? I really do not want to return if all of them are gonna do it, and it would seem a software issue in that case. But if mines got hardware problems I really should return it.
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Hate to say it but if you are on stock, I think the device crashes and does not power on with the cover anymore. I had that issue when I was on stock.
I've since moved to CM10.2 nightlies and the cover turns on the device every single time. No issues here.
Also, with CM10.2, no more random reboots. You owe it to yourself to get off of stock.
There definitely is an issue with having wifi on and no access point around w/r/t magnetic on
I've seen this on a couple of units
Here are the symptoms with my cover:
* It never fails to put my tab to sleep.
* With wifi off, it rarely wakes up my tab. With wifi on, it wakes up the tab quite often... unless the Tab went to a deep sleep.
* When plugged in (PC or charger), it works beautifully, wifi on or off.
So it's hard to point the finger to Poetic.
There are plenty of people who don't have any issue.
I have replacement coming from the Amazon seller, so will see.
Open your case and WAIT...
so far mine always turns on... BUT it may be delayed by 10-15 seconds.
(by that time most of us have closed/re-opened the case a few times).
Mine works like a charm, I cycle through every Locket ad in like 30 seconds using my cover lol
Mine fails perhaps 20% of the time. It can't be a cover issue though, because the cover is constant.
Just tested my Moko ultra slim case on CM kanged and it turns on and off like a champ. Quick and no delay. No reboots either. So for me it was a software issue.
For you, flash CM and see if it is. If you still have the problem on CM then exchange it.
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Mine works fine with CM10.2 as long as WiFi is always on. If WiFi is set to turn off when sleeping it will not turn on after 15-20 minutes.
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I posted about this same issue here: http://forum.xda-developers.com/showthread.php?p=44926734
Sometimes it will wake up after a delay (20-30 seconds) and sometimes it will just sit there until I press the power button. My first gen N7 never had this problem. I really don't want to let my WiFi run 24/7 just so my tablet will wake up.
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RKight said:
I posted about this same issue here: http://forum.xda-developers.com/showthread.php?p=44926734
Sometimes it will wake up after a delay (20-30 seconds) and sometimes it will just sit there until I press the power button. My first gen N7 never had this problem. I really don't want to let my WiFi run 24/7 just so my tablet will wake up.
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I have mine set to always on so it is ready through out the day and I manually turn WiFi out at night.
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ncguy68 said:
I have mine set to always on so it is ready through out the day and I manually turn WiFi out at night.
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What's your battery life like, though? With light use, I can go a few days between charges.
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RKight said:
What's your battery life like, though? With light use, I can go a few days between charges.
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WiFi seems to use very little power. I average about 10 hours of screen on time per charge.
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I'm using the MoKo case and do not have any problems with the case not waking the device when opened. I must say though I did not purchase the case for this feature. The case construction is good, it fits the device perfectly and looks.well in place, and provides protection for the screen. For those reasons I am satisfied with it.
Just got a poetic replacement case, no improvement.
But (at this point) I think it's a tablet issue. If google knows they will fix it later, just like some people having multi-touch issue.
Even with my WiFi off, on CM, its perfect. Tested with WiFi off, even waited like 5 minutes and tested again with no issues. Probably a rom issue. Is this on stock with the latest version?
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player911 said:
Even with my WiFi off, on CM, its perfect. Tested with WiFi off, even waited like 5 minutes and tested again with no issues. Probably a rom issue. Is this on stock with the latest version?
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Mine is stock rooted, latest version, with a Moko case. If it sits idle for more than a few minutes, it will rarely turn on when the cover is opened. With short idle times, it will wake consistently. I may try CM eventually but, for now, I think I may just flash the Bulletproof kernel and enable the double tap to wake feature.
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For anyone having this issue, I found a thread on the Google product forums about this. That's apparently how they became aware of the other issues that have been reported. If you could, please post your problem in this thread: http://productforums.google.com/forum/m/#!category-topic/mobile/android-devices/8MTpqfFmw8Q
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zim2dive said:
Open your case and WAIT...
so far mine always turns on... BUT it may be delayed by 10-15 seconds.
(by that time most of us have closed/re-opened the case a few times).
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Hahahahaha 10-15 seconds. STOP acting like that's NORMAL.
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Recently after updating to 4.4.2, I've been experiencing a weirdass issue.
The phone will drain normally/fast from 100% to 40%, with system_server draining the most, and then once it's at 40%, the radio will malfunction, sometimes not getting a signal and sometimes showing full bars but it actually doesn't have one.
At 30%, I cannot get any reception whatsoever, even with turning airplane mode on and off. And then a while after hitting 30%, the phone will just die instantly, no "Powering off" popup, just sudden black screen until I plug it in again, in which case it it will be partially reset in the fact that I will show the "Android is upgrading" popup and the clock and date will show 8:00 and 1/1/1970 respectively. If I manually shut the phone off, it can't be booted up again until it is plugged in.
Any ideas?
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Are you rooted? If so wipe data or flash a new rom if not Idk try restoring using the factory images
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I tried all those, even wiping the external storage, still no go. I'm on stock rooted
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Sounds a bit like this guys issue
http://forum.xda-developers.com/showthread.php?t=2587619
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The limit has been increasing, now it dies at ~55%, and I can't manually reboot no matter what, it'll always need an AC power source to boot up
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