Develop Bugs

AMOLED: Black wallpaper = Battery saving (experiment result)

If you followed our discussion in this thread:
http://forum.xda-developers.com/showthread.php?t=657702
It is about "AMOLED: Black wallpaper = Battery saved?"
As I promised, I have done a simple non-scientific experiment:
(1) At maximum brightness, screen on for 15 minutes
- Default wallpaper will consume about 5% (from 36% down to 31%)
- Pure black wallpaper will consume about 3% (from 30% down to 27%)
(2) At brightness = 20+%, screen on for 15 minutes
- HTC Black wallpaper will consume about 2% (from 26% down to 24%)
- Default wallpaper will consume about 3% (from 23% down to 20%)
Click to expand...
Click to collapse
All the above experiments was done in this condition:
- Wifi OFF
- Mobile network OFF
- GPS OFF
- Bluetooth OFF
- Screen at home screen with default HTC clock (white background with weather)
* The HTC Black wallpaper is available by default when you choose HTC wallpaper. It is not pure black, but it is still black
So, conclusion, using black background will save you battery life. The above experiments were conducted at 15 minutes each and you immediately see the difference.
I would say at low brightness, 20% - 25%, you will get 1% up to 2% battery saving per 15 minutes, let say 1.5% per 15 minutes. For 1 hour you will get about 6% battery saving.
Of course, of course, I know, who will stare at the home screen for 1 hour? But who knows? In the course of the whole daily use with the phone, how long do you think you scroll left and right in the home screen?
Or imagine you are browsing XDA forums a lot, every day. It would be better using the Android XDA app by Tapatalk because it uses black background instead of browsing via web which uses bright yellow background!
Also see how the brightness affect the battery life. My eyes is happy with about 20+% brightness
Again, this is non-scientific experiment, but it should give you rough idea how much your amoled screen uses battery power
PS: Yes, I have nothing to do this afternoon Too much time, He he he ...

i said so
thanx for conducting the experiment, this proves to people that say "black bg doesnt effect and is not worth it"

I just changed my default web browser home page, from:
http://www.google.com
To
http://www.blackle.com/
They will give you the same search result but really different background color.

gogol said:
If you followed our discussion in this thread:
http://forum.xda-developers.com/showthread.php?t=657702
It is about "AMOLED: Black wallpaper = Battery saved?"
As I promised, I have done a simple non-scientific experiment:
Click to expand...
Click to collapse
Thanks for sharing but I don't have an Amoled screen to go and sit in the dark
I will charge earlier with bright vivid colors after 48 hours
Cheers,

gogol said:
I just changed my default web browser home page, from:
http://www.google.com
To
http://www.blackle.com/
They will give you the same search result but really different background color.
Click to expand...
Click to collapse
thats just madness mate

Very very nice!! I am just using night mode on amoled screen using ebook reader with brightness off, i just say that energy save is uncredible.. Thank you!!

Red is better on the battery.

The Black Color Keeps And Saves the battery longer cause they turn the display and the LEDs completely OFF , that's a LED Display characteristic to turn off the leds of the area it want to show BLACK color & the main advantage ( ithink ) over an lcd , since u''ll have a "pure black" and saving power , but on a lcd even how much the LCD is of a high quality it's always ... grey ( since there is always a BACKLIGHT )

what a pointless experement get a job lol

at night what's the best option to turn airplane mode?
i need alarm to wake me in the morning tho.

at night what's the best option to turn airplane mode?
i need alarm to wake me in the morning tho.

hold the top power button for a few secs.you will have the option to turn on of flight mode , data mode , power off etc..

i know but for alarm to be active and same time conserve battery flight mode?

kmetek said:
i know but for alarm to be active and same time conserve battery flight mode?
Click to expand...
Click to collapse
Yes, that would be okay! Because even in Flight Mode, your alarm should go off!
You have an enery saver, although, when you wake up and you forget to turn your Plane mode off, than you can't receive or make phone calls, so thats why I dont use it!

kmetek said:
at night what's the best option to turn airplane mode?
i need alarm to wake me in the morning tho.
Click to expand...
Click to collapse
or use an app called sweet dreams

Timeriffic is better IMO.

so sweet dreams or timeriffic for alarm and battery savings?

For the ultimate battery savings, turn your phone off.... If you have it on airplane mode it is nothing but a glorified mp3/alarm clock. Turn it off and the alarm will still activate in the morning (or whenever you set it to go off).

Afro Az said:
Turn it off and the alarm will still activate in the morning (or whenever you set it to go off).
Click to expand...
Click to collapse
Really?? Are you sure?
I was under the impression that when this phone is off, your alarm will NOT re-awaken the phone.

kuztardd said:
Really?? Are you sure?
I was under the impression that when this phone is off, your alarm will NOT re-awaken the phone.
Click to expand...
Click to collapse
with the phone off, my alarm doesnt wake the phone up - the alarm just doesnt got off

screen dims 5% battery how to get brightness back

How do I make it so my note 8 won't dim the screen when it gets down to 5% battery?

CCJ22 said:
How do I make it so my note 8 won't dim the screen when it gets down to 5% battery?
Click to expand...
Click to collapse
You should disable the power saving mode.
Go to settings -> power saving mode -> uncheck at top right.

Anyone run in Power Saver mode all day ?

Just curious, for extreme phone users during the workday, has anyone tried using the M8 all day on 'Power save' mode ? Not the extreme mode, but the regular Power saver ?
How much does this mode save on battery life, compared to not using it ? But my typical settings, are no GPS, no Bluetooth, set screen to 50% - 75%, Greenify set to hibernate a lot of background apps.

True "always-on" ambient mode available on Moto 360 with the new LCA44B update

True "always-on" ambient mode available on Moto 360 with the new LCA44B update
Try this:
- Enable Ambient Mode on the watch
- Disable "Tilt to wake screen" setting in the Android Wear app
The screen will now stay on indefinitely, just like a regular watch. Until now, the Ambient Mode would always turn the screen off after a few seconds and there was no true "always-on" mode available.
PS: Battery drain seems to be the same as before.

Interesting battery life claim. did you get to verify it for more then 1 day?

HTML:
Cst79 said:
Try this:
- Enable Ambient Mode on the watch
- Disable "Tilt to wake screen" setting in the Android Wear app
The screen will now stay on indefinitely, just like a regular watch. Until now, the Ambient Mode would always turn the screen off after a few seconds and there was no true "always-on" mode available.
PS: Battery drain seems to be the same as before.
Click to expand...
Click to collapse
Almost just like a regular watch.. Screen stays on but gets dimmed after a few seconds. At least: mine does.

So it stays on even with the watch down by your side? Pretty sure ambient mode kept the screen on before any time the watch was nearly level (like when looking at it).
Sent from my LG-VS980 using Tapatalk

doublej713 said:
So it stays on even with the watch down by your side? Pretty sure ambient mode kept the screen on before any time the watch was nearly level (like when looking at it).
Click to expand...
Click to collapse
Yes, the watch always stays on in all positions.

Cst79 said:
Yes, the watch always stays on in all positions.
Click to expand...
Click to collapse
... but dimmed after 10 seconds..

pietrucci said:
... but dimmed after 10 seconds..
Click to expand...
Click to collapse
I don't understand this. Of course the screen will be dimmed when always on, this is what happens for all smartwatches and even all the laptops by default when not actively in use. This is a sane thing to do. I wouldn't want my watch to glow in the dark when I'm walking.
Plus, are you able to tell the time when looking at your regular watch in the dark ? No. You have to press a light button (if present; if not, you are out of luck). With the Moto 360 you are able to see the information without pressing any button, even in the dark.
The purpose of the always-on mode is to have access to information with no delay at all times, and that's what it does.

Cst79 said:
I don't understand this. Of course the screen will be dimmed when always on, this is what happens for all smartwatches and even all the laptops by default when not actively in use. This is a sane thing to do. I wouldn't want my watch to glow in the dark when I'm walking.
Plus, are you able to tell the time when looking at your regular watch in the dark ? No. You have to press a light button (if present; if not, you are out of luck). With the Moto 360 you are able to see the information without pressing any button, even in the dark.
The purpose of the always-on mode is to have access to information with no delay at all times, and that's what it does.
Click to expand...
Click to collapse
I was referring to your comment "like a regular watch". A regular watch always has a clear display, has it?.
I monitored my battery usage. From 6Am till 2pm my usase was 33%, so about 4% per hour. After switching to ambient mode from 2pm till 7pm my usage was 54% so about 11% per hour. Now 9pm my watch is empty. Normally by this time my battery still is at 40%.
Could be coincidence (?)
But still thanks for your tip.

pietrucci said:
I monitored my battery usage. From 6Am till 2pm my usase was 33%, so about 4% per hour. After switching to ambient mode from 2pm till 7pm my usage was 54% so about 11% per hour. Now 9pm my watch is empty. Normally by this time my battery still is at 40%. Could be coincidence (?)
Click to expand...
Click to collapse
Of course it's not coincidence. Ambient mode drains battery faster, everyone knows this, the watch also tells you this when turning on the ambient mode. When I said the battery drain seems to be the same, I referred to the drain with the new "always-on" ambient mode versus the drain with the "old" ambient mode from before the update, when the screen still turned off after a few seconds but was more sensitive to movements than the regular mode.

i don't think i'll be using ambient mode with the moto360... so this new "feature" is useless to me (or those who need their watch to last a FULL DAY)

ShadowVlican said:
i don't think i'll be using ambient mode with the moto360... so this new "feature" is useless to me (or those who need their watch to last a FULL DAY)
Click to expand...
Click to collapse
If you consider a full day a working day, it lasts a full day without any problem. Mine lasts 16 hours with Ambient Mode on and I get many email and chat notifications. It doesn't last 24 hours but anything between 16 and 36 is useless because the watch would die on you the next day in case you miss a night's charge.

With WatchMaker, you can control how the screen looks while dimmed, including keeping it on full brightness (maybe just removing the second hand so it doesn't have to refresh so much), but I agree this would not be a great option for the 360...

All Android Wear devices have always done with it seems this update does for the 360.
Sent from my Nexus 10 using Tapatalk

Darnell_Chat_TN said:
All Android Wear devices have always done with it seems this update does for the 360.
Click to expand...
Click to collapse
But none looked so good in the process

I'm considering using ambient mode but I'm not so sure. I'm using tilt to wake the device up. I heard battery life is similar to tilt to wake anyway when comparing tilt to wake and ambient mode together.
Sent from my trltetmo using Tapatalk
---------- Post added at 01:01 AM ---------- Previous post was at 12:17 AM ----------
Has anyone confirmed ambient mode does noticeably have more of a battery impact?
Sent from my trltetmo using Tapatalk

MisterCoolBeans said:
Has anyone confirmed ambient mode does noticeably have more of a battery impact?
Click to expand...
Click to collapse
After testing the Ambient ON + Tilt OFF (true always-on) mode for about 3-4 days with varius settings, I came to the conclusion that this mode drains battery significantly more than Ambient ON + Tilt ON,
Ambient ON + Tilt OFF lasts around 12 hours.
Ambient ON + Tilt ON lasts around 16 hours.
Ambient OFF + Tilt ON can last around 22-24 hours.
However, the always-on mode improves the functionality and experience so much that I wouldn't consider switching back, I prefer to just live with the shorter battery life.
I feel that there can be so many improvements that could be made regarding the screen, for energy saving purposes, but Google and Motorola just don't think of them. For example, notifications wake up the screen but there could be an option to disable this and only wake up the screen when tapping or pressing the button.

Cst79 said:
After testing the Ambient ON + Tilt OFF (true always-on) mode for about 3-4 days with varius settings, I came to the conclusion that this mode drains battery significantly more than Ambient ON + Tilt ON,
Ambient ON + Tilt OFF lasts around 12 hours.
Ambient ON + Tilt ON lasts around 16 hours.
Ambient OFF + Tilt ON can last around 22-24 hours.
However, the always-on mode improves the functionality and experience so much that I wouldn't consider switching back, I prefer to just live with the shorter battery life.
I feel that there can be so many improvements that could be made regarding the screen, for energy saving purposes, but Google and Motorola just don't think of them. For example, notifications wake up the screen but there could be an option to disable this and only wake up the screen when tapping or pressing the button.
Click to expand...
Click to collapse
That's strange why do you think Ambient ON + Tilt ON gives out more battery life than with Tilt OFF?
Sent from my trltetmo using Tapatalk

MisterCoolBeans said:
That's strange why do you think Ambient ON + Tilt ON gives out more battery life than with Tilt OFF?
Click to expand...
Click to collapse
It's normal, the Ambient ON + Tilt OFF keeps the screen on all the time, while Ambient ON + Tilt ON behaves like the old ambient mode, switching off the screen most of the time, just being more sensitive when you move your hand.

just so im using this right..
if i have ambient on and tilt OFF then the only way to WAKE the watch is to tap the screen?
the watch is dim and its great but to wake it, i have to tap the screen..
so is that how this setup works (ambient on tilt OFF)?

marctronixx said:
just so im using this right..
if i have ambient on and tilt OFF then the only way to WAKE the watch is to tap the screen?
the watch is dim and its great but to wake it, i have to tap the screen..
so is that how this setup works (ambient on tilt OFF)?
Click to expand...
Click to collapse
Yes.

How to increase max brightness on power saving mode?

I found that I get better battery life if I keep power saving mode on during my daily use, problem is that it lowers the screen brightness too low sometimes even when slide to max brightness. Is there a way to retain my brightness on normal mode when I am in power saving mode?

inspireyue said:
I found that I get better battery life if I keep power saving mode on during my daily use, problem is that it lowers the screen brightness too low sometimes even when slide to max brightness. Is there a way to retain my brightness on normal mode when I am in power saving mode?
Click to expand...
Click to collapse
You can try lumos brightness manager but you will no longer be able to use the slider in the quick menu.

You may want to try the app "Night Screen" as well.