hey guys! which backlight settings do you use for optimal battery life? 40% brightness? or do you just use the automatic version?
I use 50% when watching films, 30% general use and 20% to 10% around the house in the evening! Bright screen on this beast - no need to use the auto settings as this seems to give me the equivalent of 20-30% "overbrightness".
I use a program called "Backlight control" by Ulrik Jensen, and I have it as a short cut on the today screen to quickly alter the settings...
Related
The way that I understand power saving mode is that it saves juice by changing backlight based on what is on the screen. However in order to do this it.means cpu would be constantly used. So does power saving mode really save juice? Is the amount of battery saved by changing backlight more than the battery used by constant cpu usage?
That's a good question but I highly doubt that they would add the feature if they didn't test that it actually saved power. But, stranger things have happened.
kangxi said:
That's a good question but I highly doubt that they would add the feature if they didn't test that it actually saved power. But, stranger things have happened.
Click to expand...
Click to collapse
I assume you aren't basing that statement on recent events of failed quality control on high-end phones
No, it does not.
lemarg said:
No, it does not.
Click to expand...
Click to collapse
And this is based on???
From what I have read, having power saving mode on is another process the cpu has to worry about therefore possibly causing more battery drain. Personally I have disabled power saving mode and auto brightness and have experienced a slight improvement in battery life. I use the slide on taskbar feature to adjust brightness manually.
I have both Power Saving Mode and Automatic Brightness on, 3G off, and I get over 40 hours in normal use! I hope that tells you these settings don't drain the battery and you shouldn't worry about having them turned on.
It is NOT putting an undue burden on the cpu, and small amounts of CPU usage have MUCH less effect than powering the screen.
steel_3d said:
I have both Power Saving Mode and Automatic Brightness on, 3G off, and I get over 40 hours in normal use! I hope that tells you these settings don't drain the battery and you shouldn't worry about having them turned on.
It is NOT putting an undue burden on the cpu, and small amounts of CPU usage have MUCH less effect than powering the screen.
Click to expand...
Click to collapse
I have to ask what is normal use for you? Cant imagine getting 40 hrs on any device besides a BBerry.
Sent from my SGH-T959 using XDA App
I find that the 'auto settings' takes away from a session - screen dimming and back again. Swipe to adjust brightness seems to work fine. As far as I'm concerned, the Vibrant is running normal when usage puts Screen at 83% or so.. After all, we bought it for the display to begin with
kangxi said:
That's a good question but I highly doubt that they would add the feature if they didn't test that it actually saved power. But, stranger things have happened.
Click to expand...
Click to collapse
They released the phone without doing adaquate testing on the GPS.
HTC released the G2 without turning it upside down & seeing the hinge go a flyin.
Just because they threw a feature in doesn't mean that it's been tested.
We're the testers
intruda119 said:
I have to ask what is normal use for you? Cant imagine getting 40 hrs on any device besides a BBerry.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
He keeps is 3G off, thats what's saving the battery. That and he probably was sleeping for 16+ of those 40 hours.
Just an FYI, I have been running my phone on automatic brightness + power saving mode for the past few days as opposed to my usual lowest brightness + no power saving mode; and usually I would get inbetween 3.5-4 hours of screen time (depending on what I did) but now I am getting 4-4.5 hours (same usage). Obviously the automatic brightness does not improve battery life over lowest brightness all the time, so power saving mode must be doing something right -- something aside from just lowering screen brightness as needed.
That is a feature of 2.1 that is intended to help people with LED backlit screens by turning off LEDs in areas that are black. We have SAMOLEDS, which are lit by pixel, and we get battery battery life by using black themes. That is why Fusion 1.1 is nearly all black, and gets insane battery life.
steel_3d said:
I have both Power Saving Mode and Automatic Brightness on, 3G off, and I get over 40 hours in normal use! I hope that tells you these settings don't drain the battery and you shouldn't worry about having them turned on.
Click to expand...
Click to collapse
Actually, that doesn't tell us anything. What is your battery life like with Power Saving and Auto Brightness off?
First - let me state - and it is true - that I used the search function.
I read pages and pages of advices to lower battery consumption on my HD2 Android... without success...
First I used an SD ROM. I read that a NAND would improve battery life. So this is what I did.
I am also using SetCPU with a profile when battery <30% and another one when screen is off to LOWER the CPU speed. In normal use, I set CPU speed at 768MHz trying to lower power consumption...
I use a task killer to free memory and prevent silly programs to drain my battery off...
I use Juice Defender to control wifi, data, etc...
And with all of this in place, my "Current widget" shows a consumption of 180mA with screen on doing nothing, up to 350-400-500!!! mA when acutally using the phone wifi+sync...
In the forum I read consumption like 3 mA - 9 mA!!! This is FAAAAAR Way lower than what I ever had with different builds...
So this is an help scream to everybody: what is your battery drain, and why mine is sooo High???
Hint: I am also a fan of LCD Density changer, with setting at 165... can this have an influence on battery drain??? I reverted to the original 240, doesn't seem to have any influence...
Thanks for your help,
Looki
My drain is 3-9 ma in STANDBY ONLY now and again slightly more but mainly the values stated. And my screen on between 120+160ma. Turn off auto brightness if you have it on, and set it at the lowest your comfortable with (display is big batt drainer) I DONT use taskillers as they do more harm than good. I use NO undervolting and only the default settings with my rom. I have low lcd density setting 167 i think. Lcd density has no effect on your battery drain!
Found this here. http://forum.xda-developers.com/showpost.php?p=13151738&postcount=11296 Might be of some use to you? (from hyperdroid gbx thread)
Whats youre rom?
And do u use ext partition on sd?
I dont even use SetCpu anymore. Only taskkiller.
Auto-brightness is on
Auto sync is off.
Im using UD 3.3 nand from crawlingcity
Stansby is 3 -6 ma
Using round 160 to 250.
Sent from my HTC HD2 using XDA App
How long does your battery last from 100% to self shut down? As for Current Widget, keep in mind that when people say "Standby", its generally referring to the screen being off. Set current widget to update every 30 seconds, and turn the screen of for 40 seconds. Then quickly turn the screen on, unlock, and check what it is reading then.
If its still high, try "Force Stop" applications in the Settings > Applications menu one by one, i've had to do this more than once to locate problem apps that were destroying my battery in standby mode.
I'm knew to Android, let me share you my idea.
I use UD3.3
I removed google stuff
gmail, search, etc
No auto sync
Location off
Always kill market when screen off.
I use beautiful widget for weather manual refresh.
I use battery widget
Auto level for screen
sometimes WIFI on
2g Only
2 or 3 calls,total of 3 to 4 min a day
My battery stay 48 hrs in STBY mode.
I think the most draining factor is
1) google stuff they are battery hog.
2) screen
3) bad written programs (every time they check connection to
internet or looping for doing something, looping will make
CPU in high frequency).
4) bad device driver such as BT which is known as 60ma
drain. it is not the hardware but it is the software doing
the drain.
thanks
pc2058 said:
I'm knew to Android, let me share you my idea.
I use UD3.3
I removed google stuff
gmail, search, etc
No auto sync
Location off
Always kill market when screen off.
I use beautiful widget for weather manual refresh.
I use battery widget
Auto level for screen
sometimes WIFI on
2g Only
2 or 3 calls,total of 3 to 4 min a day
My battery stay 48 hrs in STBY mode.
I think the most draining factor is
1) google stuff they are battery hog.
2) screen
3) bad written programs (every time they check connection to
internet or looping for doing something, looping will make
CPU in high frequency).
4) bad device driver such as BT which is known as 60ma
drain. it is not the hardware but it is the software doing
the drain.
thanks
Click to expand...
Click to collapse
Bt drain has been fixed, wil now get you 6-15 ma.
Google stuff aint bad, just set update frequentcy to manual.
(Helps with alot of other programms that require internet.)
Sent from my HTC HD2 using XDA App
[Ultimate GUIDE] Increase your battery life on Android
Thanks guys for your help!
I made a compilation of all tips I could collect and/or find by myself.
They are here: http://forum.xda-developers.com/showthread.php?p=15229416
Regards,
Looki
I have check out by battery is in good condition.
but still i have battery drain problems.
problems started the day one i flashed a rom.
and the battery draining problem is just due to display.
without display on data connection on, and full time in proper connectivity area:
with music playback i get approx. 10hrs
or with bluetooth 6hrs
or on call i got 5 hrs
this were my battery stats.
but with display on for just 1 hr without any use idealy on homescreen itself it.
so i needed to know were will i get to change the display settings as i was using the lowest brightness of the rom.
i needed to change other features of display were are they available.
it will thankful of you if you help.
Turn your contrast down, use a conservative kernel setting and apart from that, if its still really bad (after a few battery cycles) then its f+$%ked unfortunately.
Had the Phone for just over a week now battery life seem to die really fast screens shots of my usage took of charge around 10am and was down to 26 around 7:30 took a few pictures and placed calls etc but still
Brightness if Full dont like dim screens
Touch key is always on
Well full brightness on a screen this large is always a battery killer, and touch key lights plus haptic feedback don't help matters. You've got quite a bit of screen on time, but I'd be concerned about that WiFi. There's some settings that can help in the WiFi menu.
1) switch it to WiFi awake only when plugged in
2) turn off always scanning.
The WiFi being on and awake constantly is a definite drain.
Another thread about battery life? It takes 2 seconds to type BATTERY LIFE on the SEARCH BAR ON YOU RIGHT, more than 11 pages, here are the results,
http://forum.xda-developers.com/search.php?searchid=363863423
god bless, cheers:fingers-crossed:
Hey there, just wondering if I switch to wqhd do I need the phone to learn my usages again or adjust to the new screen resolution to get better battery life again
How can we make the device re-learn our usage habits?
No just put apps to sleep that don't have to run, turn off background data for.those that don't have to use it. Use your phone in medium power configuration and you're gonna get good battery life