Nexus uses AMOLED display where every pixel produces its own brightness. As far as i know, every black pixel is technically an off pixel. So if we used a black-heavy theme, it may significantly reduce display's battery draw. And since display is a major juice sucker, this may improve battery life.
What do you think?
The added contrast certainly would help the display be more visible during the daylight, too. We all know how artists love those bright white and gray gradients that have earned Apple so many UI design awards, but I'd much prefer to extend the lifetime of this gorgeous display as much as possible.
I always have a black wallpaper in order to save as much battery as possible.
If I really want a live wallpaper I go with the Starfield one where its black with stars...
ap3604 said:
If I really want a live wallpaper I go with the Starfield one where its black with stars...
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speaking of, is that even in the market anymore?
latyshev said:
Nexus uses AMOLED display where every pixel produces its own brightness. As far as i know, every black pixel is technically an off pixel. So if we used a black-heavy theme, it may significantly reduce display's battery draw. And since display is a major juice sucker, this may improve battery life.
What do you think?
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Click to collapse
Nothing to think, you're right, and personally my theme is close to black.
ap3604 said:
I always have a black wallpaper in order to save as much battery as possible.
If I really want a live wallpaper I go with the Starfield one where its black with stars...
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Click to collapse
I'd kill for a flying toaster live wallpaper. Brings back memories.
Nexus uses AMOLED display where every pixel produces its own brightness. As far as i know, every black pixel is technically an off pixel. So if we used a black-heavy theme, it may significantly reduce display's battery draw. And since display is a major juice sucker, this may improve battery life.
What do you think?
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Click to collapse
Thanks for spreading the word, but most of the tech people here were already aware of this.
Another tip: I have Beautiful Widgets' brightness widget on my homescreen (so it only takes 1x1 icon) and tap it often so it goes to near darkness (11%) when I'm going to use it for a while (indoors). Saves quite a bit of battery.
Pretty dumb idea in my opinion.
33 hours, 30% battery left, factory battery, on froyo. If you want better battery life, a black wallpaper isn't going to help.
evilkorn said:
Pretty dumb idea in my opinion.
33 hours, 30% battery left, factory battery, on froyo. If you want better battery life, a black wallpaper isn't going to help.
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yes it is.....
evilkorn said:
Pretty dumb idea in my opinion.
33 hours, 30% battery left, factory battery, on froyo. If you want better battery life, a black wallpaper isn't going to help.
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And the hourly Troll award goes to...
Blueman101 said:
And the hourly Troll award goes to...
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You?
10char
evilkorn said:
You?
10char
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wow, real mature
anyway, if infact true black color on the nexus ones screen is the off position then it will save battery. The only thing is, is that it must be 100% true black, dark colors wont do because they still require the same power as many other colors. It has to be true #000000
evilkorn said:
Pretty dumb idea in my opinion.
33 hours, 30% battery left, factory battery, on froyo. If you want better battery life, a black wallpaper isn't going to help.
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If you save a dollar a day it adds up.
Everything helps.
android01 said:
My wife is black and her n1 battery lasts twice as long as mine does, but i'm caucasian not black. That must be why.
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Please, can you write this sort of posts elsewhere? Preferably off-topic/nowhere.
yes yes I've noticed that when I've used the default wallpaper which is fully black with the four colored "X"
I thought this was common knowledge. I use black everywhere I possibly can.
Ersdal said:
Please, can you write this sort of posts elsewhere? Preferably off-topic/nowhere.
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It wouldn't fit in anywhere else.
(here have some of my sense of humor, I think I have too much)
android01 said:
My wife is black and her n1 battery lasts twice as long as mine does, but i'm caucasian not black. That must be why.
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rofllllllllll
+1
android01 said:
My wife is black and her n1 battery lasts twice as long as mine does, but i'm caucasian not black. That must be why.
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Haha! nice.
android01 said:
My wife is black and her n1 battery lasts twice as long as mine does, but i'm caucasian not black. That must be why.
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Click to collapse
I was wondering how long it would take someone to get along to the joke I had in my head all day :-D
Thank you, good sir!
Related
I have no prior experience with live wallpapers before getting my Vibrant. Do any nexus one users or other 2.1 early adopters have experience with battery life and using a live wallpaper for everyday use?
My battery info shows that the live wallpaper only uses about 2% of the battery but my screen takes up like 40%, isn't there some sort of connection?
What is your question?
-bZj
I'm using the "Ocean Waves" live wallpaper and haven't had any problems with short battery life or low system resources because of it. It's fun to play with and great for showing off to people and has made one iPhone 4 user actually hang his head in shame after talking about how great it was that he can have a background on his phone now.
I use nexus works fine battery life is good
Sent from my SGH-T959 using XDA App
I don't know exactly how you find that info buy under battery usage, "magic smoke" set to red and it says my display has only used 9% of the battery... but I think that's not even close to the values you are giving...
EDIT: Yeah, that's the wrong stats... where do you get that info?
I have had good battery life with this thing so far (as much as I play with it), but that is only in comparison of a g1 I got just after they first came out that has been hacked to hell and back...
i like the ocean waves one...
Thanks for the feedback guys. I plan on keeping my live wallpaper. After using them, its hard to go back to static wallpapers.
If you want maximum battery saving from your wallpaper... true black doesnt use any battery. Google true black in your phone browser, save, set as wallpaper. I havent had any problems with battery from live wallpapers though..
degeneration said:
I don't know exactly how you find that info buy under battery usage, "magic smoke" set to red and it says my display has only used 9% of the battery... but I think that's not even close to the values you are giving...
EDIT: Yeah, that's the wrong stats... where do you get that info?
I have had good battery life with this thing so far (as much as I play with it), but that is only in comparison of a g1 I got just after they first came out that has been hacked to hell and back...
Click to expand...
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Settings --> About phone --> Battery use
Morbo66 said:
Settings --> About phone --> Battery use
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That's what I was looking at but it doesn't have information on my love wallpaper usage, just display in general...
Sent from my SGH-T959 using XDA App
what about new ones? or only stock ones available ? New live ones would be cool that use less power etc.
I tried setting my Vibrant to the lowest possible brightness level (with auto brightness disabled, of course). It still seems very bright to me compared to the lowest level on every other phone I've used. I realize this phone has a nice screen, etc. but is there no way to make it dimmer in situations where you just don't need that bright of a display and want to save battery?
Edit: I want to clarify, I love the screen's brightness, I'm just mainly asking for battery saving purposes.
I was running a black bg for a while. It would seem to be your best option for both issues. It was said in another thread that black uses the least amount of battery.
Vibe the XDApp
You can get tinted screen protector....The bright vibrant screen is the best thing on this phone.
Sent from my Samsung Vibrant using XDA App
All~G1 said:
I was running a black bg for a while. It would seem to be your best option for both issues. It was said in another thread that black uses the least amount of battery.
Vibe the XDApp
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Interesting idea, i'll try it.
STi489 said:
You can get tinted screen protector....The bright vibrant screen is the best thing on this phone.
Sent from my Samsung Vibrant using XDA App
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Click to collapse
Yeah, that's not my complaint. No doubt this screen is awesome
What I mean is that I'd actually like to increase battery life further by going even dimmer, if possible.
Then a black background is a good idea, black pixels literally use no battery on an AMOLED screen because the pixels aren't on when they're black, so it's a true black. That's the wonderful thing about these screens, and why the contrast ratio is so ridiculously high. Also why the Kindle app has the color reversal option, making the background black and the text white, and a lot of the UI uses black in places I've seen stock android white or gray. I read a couple chapters of Sherlock Holmes the other day and my battery went down 2%. Awesome screen.
Also the web browser has a separate brightness setting.
Homestar1217 said:
..I read a couple chapters of Sherlock Holmes the other day and my battery went down 2%. Awesome screen.
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**slow reader..jk
maybe one of the genius phone gods could post a mod for a supper dim night mode. hint/nudge :burning eyes:
I would have to agree even on low the brightness of the screen is very high. I didn't realize this until today my friend wouldn't believe me I had brightness on low (his Droid's screen looked like crap compared to mine ).
Thanks for the tip on the black background... I really do need to find out ways to improve battery life on this thing.
I made a similar thread a while ago. For me it's too bright in low light situations. I'd love to see a way to lower the lowest setting.
+1, i'd like to see to an option to go even dimmer.
Sent from my GT-I9000 using XDA App
Same here. The browser is downright blinding in low-light.
Hey I'm not the only one who thinks the phone should have much lower brightness settings. I think I've seen it dim lower than the lowest brightness, but only on auto mode and only for a short time. Or maybe not. But I'm sure it can go lower because it would be weird if it couldn't. I also much rather have dimmer colors than a black vacuous screen for battery savings.
It does go lower. Put the brightness on manual and set it to lowest possible then wait for it to timeout and go to sleep. 5 secs before it goes to sleep the screen goes dimmer. On the G1 the lowest setting was this pre-sleep brightness. On the Vibrant we can't get that level as an option. Fingers crossed a non-samsung rom like CM6 will fix this.
SykesAT said:
It does go lower. Put the brightness on manual and set it to lowest possible then wait for it to timeout and go to sleep. 5 secs before it goes to sleep the screen goes dimmer. On the G1 the lowest setting was this pre-sleep brightness. On the Vibrant we can't get that level as an option. Fingers crossed a non-samsung rom like CM6 will fix this.
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Click to collapse
Good observation. Indeed hopefully its fixed in a custom ROM or even by samsung themselves (though i'm not holding my breath on that one).
Alarm Clock Plus
The "dim mode" in Alarm Clock Plus is really dim. It would be nice to have a setting that would allow me to drop the brightness down that much.
yeah, because even on low MY EYES, They BURRRN!
lol
seriously
+1 for supporting this thread!
+1 for lower brightness option.
+1 from me too. This thing lights that whole dang room when my wife is trying to sleep.
Sorry it took so long to reply to this thread. I had to go find my sunglasses.... Seriously though, I read in bed at night and yeah its way too bright.
You guys weren't joking when you said that the battery drains a "bit" quicker with a white background on there. I couldn't believe the rate at which my battery was being drained, so I set up a little test to see just how fast the juice was being sucked...
I used 3 wallpapers, a pure Black, a pure White and Galactic Core Live Wallpaper (Mostly green, a little purple, a little black). Since it would take too long to do it from 100% to 0%, I instead opted to do it from 50% to 40% for each one of them. With full brightness applied, wifi, gps, bluetooth, no sleep for the screen. I let each one just sit there from 50% until they each reached 40%.
The results blew me away!!!
Black Wallpaper lasted 85 mins for 10% loss. Or 14.1 hours @ 100%
Galactic Core lasted 45 mins for 10% loss. Or 7.5 hours @ 100%
White Wallpaper lasted a mere 20 mins for 10% loss. Or 3.3 hours @ 100%
Over 4 times the rate of black??? Wow!
Wow. I know white uses more battery but I didn't know the difference is so big. Now I know what wallpapers to avoid. LOL
vapotrini said:
The results blew me away!!!
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Yea, that doesn't surprise me, not sure why it blew you away...
On a Super AMOLED screen a black pixel is off which takes no power, a white pixel takes the most power, so go figure.
i've been using black.png wallpaper, just because it looks so awesome. SO BLACK
lolcopter said:
i've been using black.png wallpaper, just because it looks so awesome. SO BLACK
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Just downloaded a black.png and now its my back ground its nice super black.
Sent from my SGH-T959 using XDA App
Wow, thats a world of difference!
Would you be interested in doing that test again but in flight mode? Just to make sure theres no draining of the battery due to other processes. ( Scuse if youve considered this already )
Help I try to flash black png with the odin and no workee.
Sent from my SGH-T959 using XDA App
(kidding)
Sent from my SGH-T959 using XDA App
Sent from my SGH-T959 using XDA App
Thought red saved more?
No red takes the least besides black on an amoled screen black is off.
Sent from my SGH-T959 using XDA App
So white killed it faster then a live background. wtfo, I didnt see that coming although I do see the logic behind it, but thought the CPU drain of rendering the background would pass the solid white, or atleast be close. Helluva test, thanks for the info.
This is what i use...just black
Great test. Appreciate the findings. Been using black backgrounds for a while and it helps tremendously but didn't know the results would be so drastic
Sent from my awesome Vibrant using XDA App
that's why I really hope the apps can have a black background,
especially the GOOGLE TALK!!!
Emama said:
that's why I really hope the apps can have a black background,
especially the GOOGLE TALK!!!
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Click to collapse
i would like gmail to use black also
twicca is a fantastic twitter client that is mostly black. it looks great
Flat black is boring, I had an awesome black with a cat face in the middle which was awesome... And now I'm just using this one which isn't quite as dark, but its twice as awesome:
http://www.talkandroid.com/wallpapers/image-android-eating-apple-1407/
bchalk said:
Flat black is boring, I had an awesome black with a cat face in the middle which was awesome... And now I'm just using this one which isn't quite as dark, but its twice as awesome:
http://www.talkandroid.com/wallpapers/image-android-eating-apple-1407/
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Click to collapse
That's sweet! Thanks for sharing
Sent from my SGH-T959 using XDA App
Hers a good one I use.
According to him, with medium use, he took the phone off charge at 8AM, and by the time he got home at 5PM, the phone had 43% which is pretty decent.
He saays light user but his description of his usage is more of a medium use imo
Usage included:
Taking pictures throughout the day - testing the HDR features
Testing the slow motion video function
Downloaded a 72mb app
Checking emails throughout the day
browsing menus and settings throughout the day
20 minute phone call
https://youtu.be/cdVAqO3PWPg
If you look in the comments it says 1hr 58m screen on time.
Ugh. Not impressed. Not terrible, but not impressed.
I would consider that light use. It seems the battery is comparable to the galaxy s5
se1000 said:
If you look in the comments it says 1hr 58m screen on time.
Ugh. Not impressed. Not terrible, but not impressed.
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Where I don't see that
smooth4lyfe said:
Where I don't see that
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The user has replied to the comments under this video in youtube about screen on time as 1:58
manojmcn said:
The user has replied to the comments under this video in youtube about screen on time as 1:58
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Oh ok I see it now....I'm hoping to see more tests
Sounds about the same SOT as my S5. Not great, but I can (and have been) live with that.
that's fine IMO
I'll wait til the phone has been in my hands for a week before I make any determination on battery life.
It really depends on how bright the screen was set. Until we know that, 1h58m doesn't mean much.
Japultra said:
It really depends on how bright the screen was set. Until we know that, 1h58m doesn't mean much.
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Click to collapse
Yeah there are a lot of factors which come into play so it doesnt mean much at all
Maybe it's not enough for me. I think I'll buy the 4000 mAh battery case of Zerolemon, looks good
For brightness he said : "I've got it set on 'auto' and the screen is on 'Adaptive Display' mode."
Its hard to say what sort of ambient light he was in and what the brightness was scaled to due to his background.
Japultra said:
It really depends on how bright the screen was set. Until we know that, 1h58m doesn't mean much.
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IMO screen brightness has little impact on battery. half way on my S4 i get 5hrs 30 mins screen time. full brightness i get 5 hrs 10 mins. basically 20 extra minutes.. probably less impact on newer more efficient screens such as the S6. what impacts battery the most is data and cpu, so unless you know exactly what the person had running and was doing, it's pointless.
What is the thing that make more impact on the battery?
se1000 said:
If you look in the comments it says 1hr 58m screen on time.
Ugh. Not impressed. Not terrible, but not impressed.
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So I asked the guy about the battery and he says there will be a software update when released and that he only has a "training device" so it might not be a true reflection of the device
"Hi, the 'time on' only gives a reading from the last time the device was fully charged. UnfortunatelyI've been told to avoid battery testing because I have a a 'training device' and there will be new updated software on the retail version of the Samsung Galaxy S6 upon its release (April 10th in the UK). Therefore any tests I do wouldn't be a true reflection of the device. Everything else on the phone I should be able to test in full.
smooth4lyfe said:
So I asked the guy about the battery and he says there will be a software update when released and that he only has a "training device" so it might not be a true reflection of the device
"Hi, the 'time on' only gives a reading from the last time the device was fully charged. UnfortunatelyI've been told to avoid battery testing because I have a a 'training device' and there will be new updated software on the retail version of the Samsung Galaxy S6 upon its release (April 10th in the UK). Therefore any tests I do wouldn't be a true reflection of the device. Everything else on the phone I should be able to test in full.
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Hm... does anyone else read "Android 5.1 on launch" between the lines?
BoneXDA said:
Hm... does anyone else read "Android 5.1 on launch" between the lines?
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Lol true true
Looking at the numbers, I'm wondering if the radio firmware just isn't optimized very well. Seems like talk time is wayy down compared to everything else.
se1000 said:
Looking at the numbers, I'm wondering if the radio firmware just isn't optimized very well. Seems like talk time is wayy down compared to everything else.
Click to expand...
Click to collapse
Oh, that's true, we'll know when we get it
Hi!
Does anybody know, if you can actually save energy and battery by using the reduce screen size feature?
I guess u mean to say by adjusting DPI ? Or resolution ? AFAIK no matter what DPI u use the screen is gonna illuminate the same amount of pixels .. U can get better battery life with regards to screen by two ways
1. Black wallpaper/Black themes
2. "Pixel battery saver" an app which works good on amoled displays .
I personally turn off auto brightness , keep it at 50% and use pixel battery saver . I really have a difference of 30 mins to 1 hr of extra battery . cheers
macmobile said:
Hi!
Does anybody know, if you can actually save energy and battery by using the reduce screen size feature?
Click to expand...
Click to collapse
Are you talking about where you swipe from the middle edge to the middle and back, and the whole screen shrinks down? This does cover a large portion of the screen in black, efficetively turning it off, and might also reduce the resolution being put out by the GPU, so definitely a potential for battery savings. Who wants to keep their screen size reduced for a few days to test?
^ Yep, thats exactly what I mean! Any experiences? Theoretically it should have an positive effect, don't you think?
I didn't notice it myself over a short period of time though, I have to admit.
BalajiSundar said:
I guess u mean to say by adjusting DPI ? Or resolution ? AFAIK no matter what DPI u use the screen is gonna illuminate the same amount of pixels .. U can get better battery life with regards to screen by two ways
1. Black wallpaper/Black themes
2. "Pixel battery saver" an app which works good on amoled displays .
I personally turn off auto brightness , keep it at 50% and use pixel battery saver . I really have a difference of 30 mins to 1 hr of extra battery . cheers
Click to expand...
Click to collapse
Any statistics, how big the effect of a black wallpaper actually is?
macmobile said:
^ Yep, thats exactly what I mean! Any experiences? Theoretically it should have an positive effect, don't you think?
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I think theoretically it should work, as it uses an OLED display and more of the screen would be blacked out.
However I'm not sure if anyone who buys a Note 4 would use this mode long enough for it to gain a advantage out of it.
Still sure it would be nice to see some statistics. ^^
Kind regards, Stefan.
I believe to observe an effect, if I watch a YouTube video in small instead of full size.