Hi,
I changed the setting to turn off Wi-Fi when the tablet is in sleep mode. However, when I check my battery usage, it indicates that Wi-Fi is on almost 100% of the time.
Can I do anything to fix this?
Try better battery stats available here at XDA. Although it's designed to help you find out what's using your battery, the info the app produces will show you what programs are running the most. Odds are one of those uses wifi and that's what's keeping it on during sleep. Just remember that you'll need to be on battery and not plugged in or docked to gather the app usage info.
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Definitely an app keeping wi-fi awake. I have mine set to never turn off during sleep and I only lose 3-4% overnight. Wakelock Detector is another app that can identify which apps are keeping wi-fi active.
Thanks, I'll try to see if these apps can diagnose the problem.
Related
My wonderful Note isn't going into Deep Sleep mode which is sure to be one of the big battery drain issues i face. Can someone tell me how to get it to go into Deep Sleep mode?
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One issue with the Note and batterydrain is that it dont turn off the WiFi when the phone is asleep. But you can fix this by go to setting for WiFi and set it to turn off WiFi when the screen is off.
When I did this my Note went from using 50% of the battery overnight, and to about 2%
At the same time I turned off the autoupdate feature for Weather, Googlemail and so on..
look at the apps that uses battery if you see samsung push service the it is your problem. i solved this issue by freezing it via titanium backup
Hi to everyone. I forgat to turn my wifi off during my working hours. In the nd of my shift, i check my battery and it was proximately %5 left and even i didnt use the phone during my shift. it was %50 or something before starting. Does wifi still work even on the sleeping mode?
Thanks guys
no it stays on unless you set up the power saving mode i use custom settings so that wifi etc will turn off at 40% battery
wi-fi is a big battery drainer. Always have it off if you don't need it. Same with gps, data, and auto-sync for various accounts
Try using juice defender. I think the free version always you to enable wifi control (after your phone goes into sleep mode it should turn off the wifi until you wake it up)
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juice defender is in itself a battery drainer. don't use those "battery saver" apps. they're all bs. just get in a habit of turning off connections manually when you don't need them.
Are you aware of the setting: wifi settings/advanced/wifi sleep policy and set it to sleep when screen turns off?
Higgsy said:
Are you aware of the setting: wifi settings/advanced/wifi sleep policy and set it to sleep when screen turns off?
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Thanks I didn't know about that setting, but my question is once wifi turns off mobile data kicks in. Which drains battery more? Wifi or mobile data?
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They both drain battery equally as much. Mobile data shouldn't kick in unless you have it toggled on.
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Use Green Power to automatically disable wifi and data when the phone goes into stand by. There are lots of settings like enabling wifi at certain intervals to sync email/whatsapp/other push services.
On GB for me it's the difference between losing 25% battery overnight without it and losing only 3% when it's enabled and that's with sync every hour.
It seems that on any ICS rom wifi doesn't use any juice even when enabled in standby. Because of the kernel bug in the leaks I'm now on the official CM9 rom and after almost 9 hours with wifi turned on I only lost 4%, on every other ICS rom I tried I get the same results.
wifi
zen0s said:
Thanks I didn't know about that setting, but my question is once wifi turns off mobile data kicks in. Which drains battery more? Wifi or mobile data?
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install battery saver or juice defender , i recommend the second one
firasusman said:
install battery saver or juice defender , i recommend the second one
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I tried juice defender ultimate but connection was on and off and time to time it took ridiculous amount of time to get the connection back :/ also I don't know why with juice defender I noticed sluggish performance phone, after uninstalling everything was much more snappy.
I have wifi on all the time and I only lose about 2-3% over night on stock, I guess it's fine the way it is for me without using all those battery "saver" apps.
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dr. xp55 said:
juice defender is in itself a battery drainer. don't use those "battery saver" apps. they're all bs. just get in a habit of turning off connections manually when you don't need them.
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I disagree. I definitely get power savings with JD compared to without it. Auto-disabling WiFi saved loads of power for a start, and my overnight drain has gone from 3-5%, to approx 1% with JD running. I'm not saying all batt saver apps are worth using, but JD works for me.
Its a lot easier to have a well-behaved app that DOESN'T use a lot of power itself manage your connection toggling rather than having to remember to do it yourself.
dr. xp55 said:
They both drain battery equally as much. Mobile data shouldn't kick in unless you have it toggled on.
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Wrong. WiFi uses more power. Its a separate transmitter being driven by the battery, whereas as mobile data will use the existing transmitter (phone) that's already on, but obviously drive it a little harder than if it was all off.
I've been having problems with my Note 2 for a while now, in particular my battery would drain about 30% at night when I'm not using my handset, apart from it automatically checking emails occasionally. During the day, battery life is much as I'd expect. I get through 30%, but with reasonable usage.
I think I've pinned it down to the Blocking Mode. When I don't use it at night, battery usage is less than half of previous usage. One other person has confirmed a similar experience over a short period. I'm running Baseband N7100XXDLK7 (but this also happened in the previous ROM too). I'll repeat this for a few more nights, but I'd appreciate it if anyone else could try blocking mode and see if this is repeatable. (I had disable incoming calls, notifications and LED indicator on).
Oh, and any ideas how to cure it? (apart from not using Blocking Mode?)
Many thanks
R: [Q] Blocking Mode Killing Battery Life?
Did you check, using cpu spy, if your cpu is able to go in sleepmode while screen is off? If it doesn't, then maybe there is some app that make your note awake and working when it shouldn't...
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Cheers. I'll give it a go to see if there's any more clues.
I installed the Sprint OTA kitkat upgrade last night. This morning, I started noticing that my battery was draining much more quickly than normal - 12 or more percent per hour with no usage, wifi on while in easy range of my home wifi (normally I see less than half this drain unless I am actually using to phone or off wifi). I've also noticed that the "receiving location data from GPS" notification icon keeps flickering on and off rapidly, sometimes almost constantly. I don't know if the two are related.
"Power Saver" is on, and battery usage shows 87% for "Android System".
Anyone else seeing this?
I've just tried turning Location Services off to see if that has any effect.
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Update: it's definitely Location Services. After turning it off, my "idling" battery utilization dropped to about 3% per hour. What gives?
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levman said:
Update: it's definitely Location Services. After turning it off, my "idling" battery utilization dropped to about 3% per hour. What gives?
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Yes this is a know issue when using gps/wifi for location. Try using only mobile network for location unless you need gps for maps.
alray said:
Yes this is a know issue when using gps/wifi for location. Try using only mobile network for location unless you need gps for maps.
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Known problem for the HTC ONE in general, or known problem for the HTC ONE with kitkat? I've had the ONE for 9 months, use the GPS extensively (so Location Services is always on and enabled for GPS) yet I never had this problem until upgrading to kitkat.
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The answer, at least in my case, was a hard reset. I did that, reinstalled my apps, and the GPS / battery issue has gone away. I was also having other intermittent weird issues that have gone away since reinstalling. I guess the upgrade must have corrupted some things...
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Install/run AppOps and disable location permissions for Google Play Services and any other app that you think doesn't need location permission.
wlan_wow_ml is causing the majority of my drain. I'm not too familiar with this one. msm_serial_hs_rx is also very high. I've tried everything I can to get better battery life. I average about 20hours with 4-4.5hours screen on time.
Any ideas?
I get a lot of this wake lock as well, no idea what it is
The first one is the connection to a wireless network. No idea on the second. Download gsam battery monitor. Let it run for 24 hrs after a full charge. Gsam has a built in app called app sucker. Open that and at the top there is a drop down menu to view kernel wake locks. Then you can select each one and after that opens there's a button that says Google me. That'll tell you what each one is.
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I posted this on the Motorola Support forums as well as a question on the msm_hsic_host wakelock and one person said this
"I think that the "wlan_wow_wl wakelock" is a software lock included in the Android OS and installed so that your phone does not wake every time it sees your (or other) wireless network access points. I believe the msm_hsic_host wakelock is related to the data radio for the same purpose. Both designed to keep battery drain to a minimum when the phone is idle.."
so guess these wakelocks are good to have.
So these are wakelocks to avoid wakelocks? Lol
cyberr8der said:
So these are wakelocks to avoid wakelocks? Lol
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i guess?? lol
These wakelocks are too high to ignore...
It seems to be related to qualcomm drivers and afaik they already fixed it, but we need to wait for Motorola to implement the fix in a future update.
I have the same problem. This caused my battery to drop 10% idling for 6 hours with no apps installed. I hope it gets fixed soon.
Here we go again...
8 hours awake (because of msm_hsic_host and wlan_wow_wl)... This can't be right.
Is there any solution with battery drain"wlan_wow_wl wakelock"?
ramzal said:
wlan_wow_ml is causing the majority of my drain. I'm not too familiar with this one. msm_serial_hs_rx is also very high. I've tried everything I can to get better battery life. I average about 20hours with 4-4.5hours screen on time.
Any ideas?
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Do you have this app installed : https://play.google.com/store/apps/details?id=net.loadinghome.smartunlock
Or anything similar that uses some kind of rule based on wireless SSID ?
Or even an wireless files sharing app that stays on ?
That wlan_wow_wl is cased of periodic scans of the wireless status IMO, like searching for networks around you or looking if you are still connected to certain network!
You could try disabling "always WiFi scan". In Android 5 is found under advance settings from WiFi menu(from the 3dots menu), in Android 6 is found under geolocalisation (GPS) in the search menu(from the 3dots menu)
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