At first I changed it to 'When screen turns off' because it seems pointless to have it running when the phone is just idle. I quickly realized it takes a while for it to wake back up so I set it back to 'Never'. I have to believe it also uses more juice overall having to establish and IP address each time when it reconnects, etc.
It seems to me that when I'm at home, where I only use Wifi, it's best to keep set to 'Never' and then when I leave, just shut wifi off entirely until I get back. Trying to save every aspect of battery life that I can...
If you use a different setting than default, have you determined it to actually save battery life in your situation?
Infused 2.2.3
Infusion 1.1 OC'd 1.6Ghz
Kadin said:
At first I changed it to 'When screen turns off' because it seems pointless to have it running when the phone is just idle. I quickly realized it takes a while for it to wake back up so I set it back to 'Never'. I have to believe it also uses more juice overall having to establish and IP address each time when it reconnects, etc.
It seems to me that when I'm at home, where I only use Wifi, it's best to keep set to 'Never' and then when I leave, just shut wifi off entirely until I get back. Trying to save every aspect of battery life that I can...
If you use a different setting than default, have you determined it to actually save battery life in your situation?
Infused 2.2.3
Infusion 1.1 OC'd 1.6Ghz
Click to expand...
Click to collapse
At home, I actually see it use enough juice to be the top user when the phone is sitting idle.
At work - I turn it off, it's just scanning eating power.
In other cases I set it to Never.
Note that on the Nexus S, setting it to other than "Never" could cause severe battery drain on some firmware releases - this doesn't seem to happen on our device though.
Related
I have trouble downloading large files using this ROM since when my screen turns off, WIFI is also disabled. How can I change it. I've been looking in the settings but to no avail.
Edit: Found it...you have to click menu when in the WIFI Settings, then choose advanced.
Edit2: Wifi is disabled when screen is turn off even if the Wifi sleep policy is changed to Never.
Any ideas?
then that is some kind of bug. because setting wifi sleep policy to never should behave as such.
related note, setting wifi sleep to never greatly increases batteyr life, as said thru the forums, because back on 3g the data kills your battery much faster. so allowing wifi to stay on makes a huge improvement on battery.
for example if you leave wifi on overnight, you might lose 5% total. but if it switches back to 3g overnight, you might lose 20%.
is this bug confirmed?
me too have same problem with SuperAosp (i will test with other rom....)
First and foremost let me say that I love this phone. But I am having an issue with serious battery drain that's occurring when I have WiFi on. I need to use WiFi Calling in my house,and it worked flawlessly on my previous mytouch 4g, running under the same conditions. In fact, my wife now has that phone and it works great, we actually manage to save a ton of battery with wifi calling turned on.
So when I got the Sensation I hoped for more of the same, great battery life when at home due to wifi calling. However, that is not the case, when I have wifi on, with or without wifi calling enabled, my battery drains at a rate of about +-10% an hour! And thats with out even touching it! Without wifi on, 2-4% per hour battery drain.
Speeds when I do things over wifi are blazing fast, and the signal is full bars, so I know the phone is not searching for the wifi. With wifi, and minimal use, I max out at 5-6 hours! Not sure what to do, as not using wifi is really not an option.
One other thing, coming from the mytouch 4g, a highly underrated phone imo, I do see some lag that wasnt present in the "lesser" phone. In particular, the USA Today app, for example, on the Mytouch scrolling was smooth as butter, not so much on the sensation, I also see it in the Android market when I look at my apps, same app list on both phones, mytouch scroll is smooth as can be, Sensation is very jittery.
Maybe someone has some thoughts, or is having similar issues, cause I am so jealous of all the "OMG my battery lasted 6 months" posts!
Thanks in advance!
Because the phone comes stock with the WiFi sleep policy set to never. In my opinion that's a stupid decision on HTC's part. Easy fix though. Go into Wireless settings and clock on WiFi settings. Then click the menu key and click advanced. You will see the WiFi sleep policy menu. Just change it to "Never When Plugged in" or after 15 minutes. If you change it to Never when plugged in then the WiFi will go into sleep mode when ever you turn your display off.
Ive had it set to the 15 minute setting, but I thought that the wifi calling would block wifi from sleeping. Once when looking at the battery screen, I zoomed either on wifi or wifi calling, and it said something to that effect.
mlish420 said:
Ive had it set to the 15 minute setting, but I thought that the wifi calling would block wifi from sleeping. Once when looking at the battery screen, I zoomed either on wifi or wifi calling, and it said something to that effect.
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Sorry, I forgot you said you use WiFI calling. That might have something to do with it. I always keep mine of so it doesn't matter if my WiFi sleeps right away.
Wifi can't sleep!
I don't know if i should start a new thread but this was the closest to my problem I could find.
Basically I'm having the same WiFi battery drain issues, and I tried to do the usual Wifi Sleep 'after 15 mins' or 'Never When Plugged in' options in the advanced menu but it always reverts to just 'Never' after a few minutes.
On my power graph it shows that I have had continuous wifi on despite changing the settings. So its not just the option returning to default when i open the menu either.
I'm really confused here, is there something forcing my wifi to be on all the time?
Any help is much appreciated.
Make sure wi-fi best performance is not checked. That will drain battery faster also
My WiFI Sleep Policy is set to default (After 15 min) however the WiFi is always on. The icon is there when I turn my screen on. Checked the battery usage graph also, and WiFi is always on (as long as I don't turn if off manually).
I have a stock ROM, the latest European stock ROM.
Is this a bug? What does 'After 15 min' actually mean?
I believe it means the wifi will turn off 15 minutes after the screen goes off, and then back on with screen on.
I thought so too, but mine isn't doint that.
teomor said:
I thought so too, but mine isn't doint that.
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I know there was a recommendation to set "Never" as the sleep policy. I can't find that post unfortunately. I know on my Desire with CM7 it resulted in better battery life, counter intuitive but......
I know. I've had it set to Never on my Desire. But now I'm seeing longer standby with the current setting (After 15 min) on my Sensation compared to the Desire. Although I suspect it isn't working and it's actually never turning off.
teomor said:
I know. I've had it set to Never on my Desire. But now I'm seeing longer standby with the current setting (After 15 min) on my Sensation compared to the Desire. Although I suspect it isn't working and it's actually never turning off.
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Click to collapse
Lol, same upgrade here. TBH I've left it at Never and not tried the other policies.
I use WiFi when at home, I'm on a 3G data plan ( I'm guessing WiFi sleeping means I wouldn't get updated Gmail. Or does it revert back to 3G ?
WiFi sleeping means going back to 3G, yes.
teomor said:
WiFi sleeping means going back to 3G, yes.
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Click to collapse
Thanks, might just try it and see.
Does anyone think that instead of going to sleep after 15 minutes of the screen being turned off (regardless of whether there are background apps that have active internet connections), the WiFi actually starts sleeping after 15 minutes of idle time? I think this would be a better efficiency algorithm, so, as long as you have apps that constantly use the internet, keep WiFi connected, but when no apps are doing auto-sync or any background data, only turn on WiFi when manually using the apps..
Applications can be programmed to call for a WiFi lock. If any active application does so, WiFi won't shut off when the phone is asleep.
gol_n_dal said:
I know there was a recommendation to set "Never" as the sleep policy. I can't find that post unfortunately. I know on my Desire with CM7 it resulted in better battery life, counter intuitive but......
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Click to collapse
I remember that old tips thread. It was set your wifi sleep policy to never. Install spare parts+ or pro and set end button behaviour to sleep. And something to do with Market app. Settings->notifications-> uncheck the box. For some reason market notifications were not allowing your phone to go to sleep properly or some garbage like that. Its worth a shot.
Okay, I've been trying to diagnose a somewhat annoying issue. I've been using a fairly simple set of conditions in the Llama utility to automatically disable Wifi when the screen turns off in CM7 to prevent a wakelock condition and reduce battery drain.
So I activate wifi, I reset the log in CPU Spy, and I lock the phone disabling the screen. When I reactivate the phone and check CPU Spy, wifi was definately off but the phone was never in Deep Sleep, so something was holding the wakelock I guess. I repeat the experiment with no changes and Llama still running, but this time I manually disable wifi before locking the screen. This time the phone immediately goes into Deep Sleep according to CPU Spy-- it works perfectly.
So what is the difference between Llama autodisabling and manually disabling wifi that leaves a wakelock active? I've repeated this experiment like ten times last night, and it isn't making much sense to me.
Thanks,
Gnat
I would love an answer to this as well. I can add that with juice defender ultimate the same thing happens. It will disable the wifi but the wakelock stays active. I have tried several settings and reboots and tests and the only thing that would get my phone to deep sleep was disabling JD.
mikel81 said:
I would love an answer to this as well. I can add that with juice defender ultimate the same thing happens. It will disable the wifi but the wakelock stays active. I have tried several settings and reboots and tests and the only thing that would get my phone to deep sleep was disabling JD.
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Click to collapse
I can't tell whether this is the exact same, because you make it sound like JD has the wakelock. In my case, Llama is running in both tests, the only difference is whether Llama turns off Wifi or I manually toggle it-- manual toggling puts it into deep sleep even with Llama running.
On the general battery issues on Triumph, one of the more helpful discussions I've seen is this one here-- http://androidforums.com/triumph-all-things-root/456795-cm7-triumph-battery-life-improvement.html. In it a quote from Tickerguy blesses the JuiceDefender approach to throttling data use for battery savings, but I don't think he had done any analysis regarding wakelocks. BTW, I reverted to stock today, and I am finding the exact same problems as CM7-- wifi imposes a wakelock, and Llama can't shut down wifi automatically without the wakelock persisting. I have to manually toggle wifi off before screen off before the wakelock is gone.
Regards,
Gnat
gnatd said:
I can't tell whether this is the exact same, because you make it sound like JD has the wakelock. In my case, Llama is running in both tests, the only difference is whether Llama turns off Wifi or I manually toggle it-- manual toggling puts it into deep sleep even with Llama running.
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Click to collapse
Sorry; the wakelock is WLAN. It is almost always active if JD is toggling wifi. I hadn't tried disabling wifi manually but leaving JD active yet. I just tested that and got deep sleep immediately. So it must have something to do with how it disables wifi isn't releasing the wakelock.
You know, after switching back to stock from CM7 I'm really not sure I'm not happier. With CM7 I was getting worse battery performance, which led me to start obsessing about wakelocks and deep sleep. Now that I am back on stock, I do the same analysis and see that I have the same problems with wakelocks and deep sleep-- but the battery performance is better so it's not that big a deal. I'm sure that there are things I could do to make CM7 have better battery performance-- but I wasn't enjoying the process and wasn't finding answers, so why bother?
It's like power management programs. I ran Green Power for a long time, and had some glitchy problems with being unable to get wifi to turn on even though it wasn't supposed to be managed while the screen was on. Then I disabled it, and you know what... my battery life was good enough to get me through the day. Froyo is good enough to get me through the day.
The wakelock was put in there on purpose to prevent the phone from hanging when WiFi was on and the phone went to sleep. I use my power widget to turn off WiFi before I turned off the screen unless I'm actually using it.
You could try and build it to see if removing the wakelock is still necessary. If you need help on that side, just post and I'll help. It's not hard, really.
I've used the N5 for a few days now and I must say I'm impressed with everything except for the battery.
So the thing is, i really gave no craps about the battery on my Defy because I didn't care much for the phone either; so I'm sort of confused and out of ideas for battery saving.
I haven't rooted yet, but when I do my best guess would be just to down-clock the CPU, but how well does that really work? I use No-Frills and it works about 93% of the time, other times it just reverts. Do I need a kernel?
I keep it on about 10% brightness because I like soft lighting and screens. That works to a certain extent as well as the fact that I'm not a data user and I always turn wifi off when I'm not using it (like, immediately I will go and toggle it).
Other than turning off sync, is there anything else I'm missing? A good app maybe?
droid_<3er said:
I've used the N5 for a few days now and I must say I'm impressed with everything except for the battery.
So the thing is, i really gave no craps about the battery on my Defy because I didn't care much for the phone either; so I'm sort of confused and out of ideas for battery saving.
I haven't rooted yet, but when I do my best guess would be just to down-clock the CPU, but how well does that really work? I use No-Frills and it works about 93% of the time, other times it just reverts. Do I need a kernel?
I keep it on about 10% brightness because I like soft lighting and screens. That works to a certain extent as well as the fact that I'm not a data user and I always turn wifi off when I'm not using it (like, immediately I will go and toggle it).
Other than turning off sync, is there anything else I'm missing? A good app maybe?
Click to expand...
Click to collapse
Few things i've done is turn off wifi always scanning. set location to device only. undervolt -75 and max cpu 1575. i'm using cataclysm rom and frank r16 which was just recently released. when i was on r14 kernel i was getting about 7hour 1% drain on idle connected to wifi. I also try to monitor what I want to have push notifications for. So check what you have constantly Syncing.
cntrdctn said:
Few things i've done is turn off wifi always scanning. set location to device only. undervolt -75 and max cpu 1575. i'm using cataclysm rom and frank r16 which was just recently released. when i was on r14 kernel i was getting about 7hour 1% drain on idle connected to wifi. i also turn make sure i monitor what want to have push notifications. i hope this helps.
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Click to collapse
Biggest changes for me were:
-Disable Hotword detection. Turn it back on when you want to impress friends and otherwise hit the mic button manually. Increases Screen on Time.
-Disable Auto sync. Set an automation to only sync while charging instead. Increases Battery at all times, may slow charging a tad.
-Disable Locations. Enable if needed on the go. Can't automate this with Llama but I'm guessing it would work using Tasker. Many less wake locks you can go hours without a single one now.