Since we need to have the screen turned on to keep wifi/gps etc. running, and there are a few apps that would ideally run in the background with the screen off; to save battery power (and burn in?) it would be nice to have the AMOLED screen display just a black image.
Is there any app out there that just displays a black screen and maybe ignores all but a specific input?
At the moment I just zoom into a black image in the browser, but I can't put the phone in my pocket like that.
(I tried searching for this, but it was beyond my google-fu.)
You dont have to keep the screen on to run either my gps is always on and it neva disconnects also ive spent many nights going to sleep leaving my wifi connected and its neva disconnected either
Yup. If you haven't set WiFi to switch off after 15mins, it should carry on running.
By doing what you proposed, you'll decrease battery life drastically as you'd effectively be disabling the chips sleep mode by keeping it running 100%. With that, only the screen switches off and everything else including Android keeps running. Any application holding a partial awake lock can achieve this.
Lock delay; an app to control the default screen-lock options allows this.
For instance, if you set the initial screen timeout to 2 minutes but standby/lock to 10 minutes in the settings, the screen will switch off after 2mins idling, but the rest of the phone will still be running incl. WiFi/GPS. You can enable a lock/pattern or no lock at all where you press any key including menu/trackpad and it'll come back on in the same place you left it, without any lock. If the phone idles for 10mins, it'll activate the screen lock and place the phone in the standard sleep mode. The max delay you can set the latter to is 24 hours.
I wouldn't advise avoiding the sleep mode unless required in specific circumstances. Battery loss will be drastic; I found out unintentionally when activating this option at the beginning.
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- Sent via my HTC Desire -
Thanks th3, that should do what I want. I don't intend to leave it unattended, it's just for when don't need the screen on while an app is doing something.
Just thought I would post some of my tasker setup to make my battery last a very long time!
First you need Tasker
You also need Secure Settings
And lastly you need Synker
if you want to make my settings super easy to install just download the two attached files and place them on the Sdcard in the Tasker folder.
userbackup.xml
userbackup.xml.txt
then start Tasker, click on the menu button and select Data then restore. This will place all my prebuilt settings in for you.
The first profile I have is Mobile. I have this profile made for when I am in my car but its settings are for anytime power is plugged in.
The things it does is: Turn on GPS, Turn off auto brightness, turn display brightness to max, turn auto sync on, turn media volume to full, turn display time out to one hour.
When unplugged from power it does the following: Turn off GPS, display turns off after 30 seconds, Auto brightness on, Auto sync off, wifi off.
The next setting turns on GPS automatically once maps or navigation is started then turns it off once you exit those apps.
The next one is the big battery saver! When the display is off it Turns off mobile data and wifi.
When the display turns on it will wait five seconds and then turn on mobile data.
lastly I have it setup to turn on mobile data every 2 hours and sync gmail then turn mobile data back off.
I have had tasker for a long time but never really dug into it until I got the SG2. I think this will make your battery last much much longer.
If anyone has better suggestions please add your input.
18.4009
i have the same setup but use juice defender to do the same thing as tasker and synker. it can actually more, like sync more or less at certain times of the day. but i've been thinking about switching to tasker, might be more battery efficient.
i'm using secure settings to turn gps on\off too, based on what applications get run. i noticed the little tray icon only turns on when an app is actively using the gps tho. does that mean gps only uses battery when actually in use? but it seems like i get more battery with it turned off completely.
for mobile, i'm going to attach gps to my car's nfc sticker instead of when plugged in. might be a little faster for charging at home.
i guess you could use secure settings and tasker to only turn nfc on at the lockscreen. although i'm not convinced nfc uses much battery.
lets see... i'm also using tasker to immediately turn off the display if upside down (in my pocket).
it turns data off if i'm reading an ebook or watching a video.
i use it for 1 click switching between 2g and 4g.
i use it to switch cpu max between 192000, 918000, and 1728000. you can get crazy battery life by running 192000 all day, but everything will run slow. usually i keep it at 918000 and play games at 172800.
there are lots of other things, but that's the battery stuff.
18.4009 said:
Just thought I would post some of my tasker setup to make my battery last a very long time!
First you need Tasker
You also need Secure Settings
And lastly you need Synker
if you want to make my settings super easy to install just download the two attached files and place them on the Sdcard in the Tasker folder.
userbackup.xml
userbackup.xml.txt
then start Tasker, click on the menu button and select Data then restore. This will place all my prebuilt settings in for you.
The first profile I have is Mobile. I have this profile made for when I am in my car but its settings are for anytime power is plugged in.
The things it does is: Turn on GPS, Turn off auto brightness, turn display brightness to max, turn auto sync on, turn media volume to full, turn display time out to one hour.
When unplugged from power it does the following: Turn off GPS, display turns off after 30 seconds, Auto brightness on, Auto sync off, wifi off.
The next setting turns on GPS automatically once maps or navigation is started then turns it off once you exit those apps.
The next one is the big battery saver! When the display is off it Turns off mobile data and wifi.
When the display turns on it will wait five seconds and then turn on mobile data.
lastly I have it setup to turn on mobile data every 2 hours and sync gmail then turn mobile data back off.
I have had tasker for a long time but never really dug into it until I got the SG2. I think this will make your battery last much much longer.
If anyone has better suggestions please add your input.
18.4009
Click to expand...
Click to collapse
Hey ,I just wanna say thanks I was getting 8 hours on a Verizon extended battery but now using your settings and tasker plus extra apps I'm getting 14 to 15 ,I just wanted to add that it in order to use secure setting you have to root your phone but it worth it.
Sent from my SGH-T989 using XDA
I just check my battery stat and it up to 21 hours,I cant believe it thanks again
Sent from my SGH-T989 using XDA
Do you still have these backup files? The links are dead when I try them. I would like to try out your settings.
Reupload please
Sent from my SGH-T989 using Tapatalk 2
Code-hunt
First post and it's a necro asking for something. I swear I used to have an account here in high school.
Anyway, I think those files are gone. Every time I come back to Tasker I try to start from the group up and a day later I'm fiending for backup.xmls/txt just whatever you use for your battery, please, just a quick string of code.
Re upload
Backup files
I have it turned on and set to activate at 30%. However it doesn't automatically turn on when the battery gets that low. I need to turn it on in the notifications drop down. Is this how it is supposed to work or am I missing something? I thought it would activate on its own.
Hello, I cannot find a way to have Tasker find out whether the 'battery saver' mode is ON or OFF. (h815p)
what i'm trying to do is to create a task that:
1 - checks if battery saver is ON or OFF
2 - if ON, turn battery saver off and set display brightness to 91
3 - if OFF, turn battery saver on and set display brightness to 255
i was able to get tasker to switch BS on or off (though not 'silently') - but there seems no way to know if BS if ON or OFF.
any help would be greatly appreciated!
PS. not sure why this feature is not discussed more in depth, it almost doubles my battery life with it.
Op3, LineageOS 7.1. My location will not turn off completely. The toggle stays on and will only switch to battery saving. I also cannot switch to device only. If i tap that, it turns on high accuracy. So I only get those two modes, either battery saving or high accuracy. I'd like to be able to turn it off completely or use device only mode as well. I have location history off. I am rooted. I have uninstalled apps that I thought might try to keep location on, such as Prey (a lost phone app).
Does anyone know what is going on? Would I have some other app that is forcing the location to stay on? If so, how would I find what is the culprit?