To my understanding doze goes into a deep sleep when the phone is off. If i tether will doze still be active ?
your post makes no sense. if your phone is off, the OS isn't running, therefore Doze isn't running (and neither is tethering). if you run hotspot, your phone will be (heavily) active and Doze will NOT kick in.
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i have it set to turn off when screen off. i still get my google voice texts though and such.
this may be why it ends up freezing in standby when i leave it overnight...
same here.I use tablet text and wonder if it prevents wifi from sleeping.I've been using airplane mode due to this
Here is a question about Wifi sleep that seems pretty obvious to me, but in case I am wrong I will ask here.
You enable Wifi, which shuts off 3G (but keeps 1X active). Now Wifi goes to sleep (when the phone is in your pocket), and while Wifi is sleeping, someone sends you a GMail. I assume that you will NOT get any push notifications while Wifi is snoozing away???
You should have WiFi set to not sleep.
Sent from my SPH-D700 using XDA App
To expand on Beezer80's comment, you will have better battery life if you set your wifi sleep policy to never sleep. Your power is drained faster with repeated search and connect actions by your phone, so you'd be better off keeping the pipeline open all the time.
Hi,
I thought that I could use Tasker (https://play.google.com/store/apps/...EsIm5ldC5kaW5nbGlzY2guYW5kcm9pZC50YXNrZXJtIl0.) to save battery life. So, what I did was to prepare the following profiles:
a) Disable autosync, enable it to 3 minutes every 30 minutes. Sync only between 6:30 and 23:05.
b) Enable autosync while on AC power, disable when not.
c) Disable wifi, enable it for 15 seconds every 15 minutes so the system would have time to connect to a known wifi if available. Then disable wifi unless its already connected.
d) When a wifi connection starts, do nothing. When it gets disconnected (like when I leave home), disable wifi.
I only use EDGE. I only sync gmail, contacts and calendar.
Before this, I had autosync and wifi on all the time so I believed this setting should conserve battery. Everything works, Tasker app itself is not draining much from the battery (according to Betterbatterystats its really negligible) but still, I have a considerably higher energy loss than with default setting.
Do you know whats the reason for this? Is is caused by the wifi enabling and disabling - taking more power? Is it caused by the fact all sync gets done at the same time? Or why is that?
Im generally happy with the Nexus S battery life but this outcome makes me curious ...
EDIT: My advanced wifi system setting always was "never disable wifi when screen is off". Also, for the purpose of this test, I disabled wifi AP on my router to check just for the outcome of the wifi search.
Check out your Awake time (can find this in BetterBatteryStats), you'll probably notice the phone stays awake for longer than it would normally. Normally the phone would go into a practically permanent "sleep" state, powering nothing but your radio, when the screen is off and doing nothing. It would just wake up every X minutes to autosync or for other alarms (exchange sync, etc) and then go back to sleep. I wouldn't be surprised if it is solely the wifi option.
Depending on the advanced setting in the wifi options, it keeps the connection indefinitely or drops it after a certain amount of time, i think around 15mins - 30 mins. This may need to be changed to fit the circumstances.
Overall though, benefiting from the use of Tasker or similar program for battery life purposes doesn't gain much over what android already does (albeit still with alot of room for improvement).
Well, I should've mentioned this: My advanced wifi system setting always was "never disable wifi when screen is off". So thats not possible reason.
Also, for the purpose of this test, I disabled wifi AP on my router to check just for the outcome of the wifi search.
I basically believed that before, the phone had wifi on and checked around every now and then. And with the new setting, it would check less often, therefore saving battery.
Awake time is about 40 minutes in 7 hours sleep.
EDIT: Maybe it would help to adjust the times better.
wifi nexus 7. turn on airplane mode. manually turn wifi back on. what stays off, anything? GPS? Does airplane mode have any use or advantage on a wifi only device. Any battery use changes or background processes that stop? Thanks for any responses
jlschweiger said:
wifi nexus 7. turn on airplane mode. manually turn wifi back on. what stays off, anything? GPS? Does airplane mode have any use or advantage on a wifi only device. Any battery use changes or background processes that stop? Thanks for any responses
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Probably no bluetooth, either. I know it turned it off on my old work blackberry because it was on the same screen and you could see it turn off.
It should turn off EVERYTHING wireless. That includes, to my knowledge, WiFi, GPS, NFC, and Bluetooth.
It should help with battery life - although probably very slightly. GPS/NFC/Bluetooth truthfully have very little effect on battery life as is, and WiFi isn't that big of a hog. But it certainly could help to eek out an extra few percentage points if you *really* needed it.
Hi all,
During idle and sleep time I see my phone is still active during doze (not during idle_pending but during idle itself). I can constantly see the active line in the graph like bar code. Happens both in wifi and Lte.. I can't find any suspects using bbs and wakelock detectors.
Do u keep wifi turned off during night? If it's turned on, do u see the phone being awake.
BTW I have set the wifi frequency as 2.4 ghz only and my router is 2.4 ghz one..
Look usage wakelocks statistics using BetterBatteryStats.