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Do Super AMOLED screens use battery power whilst displaying black?
I've heard this before and it makes sense considering the Nexus S was the first 2.3 phone (which has SAMOLED) and 2.3 is nearly all black.
So, if I were to change 99% of the things on the screen to black, would it technically not use as much power? Is it even worth making everything black or is the amount of power saved not very much?
Amoled display uses far less power to display black than to display color or white.
When the display is on it still uses battery. But you might notice some small battery savings if everything is black. I always use black wallpaper for this reason, plus I like how it looks.
Sent from my Nexus S using XDA App
It uses less power but I don't find it's needed really.
I use about 4 hours of screen time, over an hour of calls, over 100 texts, half an hour of web browsing, angry birds, a bit of music, stream 20 mins or so of video online and have a live wallpaper running all day and I still make it to about 30 hours.
When a pixel is black on a SAMOLED display, it has essentially been turned off and there is no power consumption from it.
Maybe I will try it out though and see if I can push for 48 hours lol, I just really love how the colour pops on this screen so I can't imagine myself using black backgrounds much.
Google made Gingerbread keyboard, keypad and all the menus dark/black for this very reason.
I've heard in multiple ROM threads that you basically can only get four hours of screen display out of the captivate battery. The concept is that the screen is the single largest drain on our battery. I'm not sure that's the case, as the following screen caps show.
The first pair was run a couple days ago (wifi and data off). I charged the captivate to full, and turned the screen on permanently, set the screen filter program to 25% (darkens the screen - supposedly saves battery), ran "Desk Home", and went to sleep. I woke up, and the battery still was not drained. In the end, I was able to minimize usage until 11am or so, and took screen shots before the battery drained completely, and ended with over 12 hours of screen display on 80% of the battery (and some trivial usage).
To see if it was the screen filter program was the cause, I repeated this last night. This time, I didn't run desk home, but just turned the lit up phone upside down. Again, there was still significant battery when I woke up. I had to turn the screen off at 9am (as I was going to be away from the phone), and checked back and screen captured at 11am again. In the undimmed (but lowest brightness setting), I got 9 1/2 hours of display usage on somewhat less than 80% of the battery.
Conclusions I draw are that the screen filter program does extend the life of the battery a small amount - say, 7% per hour vs. 8% per hour with no external dimming program. In the past, I've had similar results playing games or reading ebooks (about 8-10% per hour usage). But it seems obvious that 4 hours of indoor (lowest brightness) screen display on my captivate should only be using a third of the power. Where is the rest going, and why doesn't the battery usage display show what is really drawing down the power?
I have my theories - all related to the modem functions: connecting to the data network, connecting to wifi, and connecting to cell phone towers. Perhaps when I have time to move some massive file across a good wifi connection, I'll see what kind of battery drainage that gives me.
This is on Continuum 6 RC1 with the JVQ modem and talon 0.3.1 - 1400, for reference.
Huh ? who comes up with stupid myths or why would you even believe that when review sites like gsmarena did a review and they tested media playback they got 7:25 hours of media playback with screen at 50%.
Alot of things can drain battery radio , cpu , screen.
Ya I have to agree. It is meaningless when like you did you turned brightness down l left screen on doing nothing. It in no way tests actual usage
Sent from my GT-I9000 using XDA App
The 4 hour limit is one I've hit on ever rom since 2.1. It is not based on the phone/cpu sitting idle. It's based on actual usage (browsing the internet, playing games, texting, etc.). When you are actually using it the cpu clock ramps up and that along with the display being on is what eats the battery.
ghost77 said:
Huh ? who comes up with stupid myths or why would you even believe that when review sites like gsmarena did a review and they tested media playback they got 7:25 hours of media playback with screen at 50%.
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Click to collapse
Criminy. First of all, the "four hour limit" is mentioned in multiple ROM threads, as well as by nybmx in the post above. So I'm surprised that you are inferring this is new to you.
And if you try a little reading comprehension, you'll see that I specifically tested this out because I didn't believe it.
I hadn't heard of a 7 hour test. I've heard of some roms lasting 5 hours or so, running a single task. Which, in theory, could be consistent with a "four hour display life" and a days worth of other stuff - random calls, messages, etc.
Alot of things can drain battery radio , cpu , screen.
Click to expand...
Click to collapse
Which, coincidentally, is how the conclusion I came up with at the end of my post. Except for the CPU. In normal phone usage (for me at least), the CPU isn't under constant strain. Does anyone have actual data about what the CPU is doing under typical tasks, like talking on the phone or listening to music? I have looked at CPU usage with the GPS test program in Froyo, and the cpu usage was always at 100 and 200 Mhz (i.e. not topped out at 1 Ghz, or more if OC'd).
crystalhand said:
Ya I have to agree. It is meaningless when like you did you turned brightness down l left screen on doing nothing. It in no way tests actual usage
Click to expand...
Click to collapse
It's called the scientific method. You test each variable separately. If you know how much power the display draws per hour of use, and how much the phone draws, and how much wifi draws, etc. you should be able to figure out what kind of use you will get in any scenario.
Do you know how much battery is used when GPS tracking alone? If you don't, then you won't know if you can track constantly during a 6 hour hike or whether that will drain the whole battery. I do, because I've tested it separately. If you gave me a scenario where you said I would track GPS while listening to music, and checking my position occasionally (say an hour of screen time) over the course of four hours, I'd be able to give you a pretty good idea of what my remaining battery will be, because I've tested those variables multiple times. On my phone, that scenario would drain the phone about 64%. [I imagine I'd give it a plus or minus of 8%].
For my money, that's "actual usage". If you are trying to figure out battery drain without controlling conditions, you'll never have accurate information.
nybmx said:
The 4 hour limit is one I've hit on ever rom since 2.1. It is not based on the phone/cpu sitting idle. It's based on actual usage (browsing the internet, playing games, texting, etc.). When you are actually using it the cpu clock ramps up and that along with the display being on is what eats the battery.
Click to expand...
Click to collapse
First of all, thanks for confirming to ghost77 that such a limit is "known".
Reread my post. I think it's clear that I'm not saying that I think the 4-hour limit is based on an idle phone. The point I hope I'm making (explicitly in the 3rd to last paragraph) is that, even though "the cpu clock ramps up" and is used in whatever program you are using, the battery monitor is reporting that it is the display that is using the battery. It does not seem to credit the program (messaging, phone, internet, game, etc.) with the boost in CPU needed to do whatever you are doing.
After all, if we can all agree that the display uses 8-10% of the battery per hour, then having the display on while idle or when displaying a web page shouldn't make a difference to how much energy the display is using. In reality, if your phone is good for 5 hours of surfing, it's not the shiny display that has drained your battery, it is the transfer of data and rendering of the data as you manipulate the pages - all usages that should be credited to your internet program, not your display.
And if I've got you to agree that far, then it's a short step to reiterate what we've both said - it's the actual usage on the phone, not the display time, because the phones are more than capable of more than four hours of display. In which case, the four hour display limit is really unrelated to the display, but is a proxy for how much time you've spent using your phone for other stuff.
And then we can agree that you can get maybe eight hours of doing something simple like using a book reader program like Aldiko.
And then maybe you can see why I called the four hour limit a myth.
It's not a myth... Your taking a statement out of context. And wasting a lot of white space in the process.
Soccer_Dad said:
After all, if we can all agree that the display uses 8-10% of the battery per hour, then having the display on while idle or when displaying a web page shouldn't make a difference to how much energy the display is using.
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Click to collapse
Actually it might, depending on the colors the screen has to show.
It's a well know fact that for OLED screens showing white uses up a lot more power then any other color. Most articles even say that showing white is the one area that LCD screens end up using less. Unless the screen actually contains white OLEDs (which ours does not, but whatever comes after the SuperAMOLED+ most likely will)
A second way that color matters is that for our SuperAMOLED screens the number and size of the green OLEDs is different then the blue/red. Without the specs on them no one can say just how much electricity is being used, but it is a factor.
Also, I recall reading that red LED/OLED use the least amount of electricity then any other color (given that all other details of comparison are equal) So there may very well be a difference between a screen that is using mainly red then blue, even tho they are the same in size and number.
Since the vast majority of web sites are a white background and black text, or a similar bright screen and dark txt, they are gonna use up a good deal of power (in comparison to any showing any other screens). This is also why there are no white, light gray or other such bright themes made for our phone.
I'm pretty sure that "Screen" includes the Display, multi-touch sensors, tilt sensors, GPS, compass, and all other sensors/input devices.
Hey, this is to anyone, but i saw Soccer_dad's graphs/ battery usage, and I noticed my battery stats dont reset when i plug in to charge and unplug. Even if i reboot my phone it still keeps past charges and discharges. Right now it says my phone has been on battery for 4 Days and 7 hours, when clearly Ive been charging every night. Is this a bug?
noside12123 said:
Hey, this is to anyone, but i saw Soccer_dad's graphs/ battery usage, and I noticed my battery stats dont reset when i plug in to charge and unplug. Even if i reboot my phone it still keeps past charges and discharges. Right now it says my phone has been on battery for 4 Days and 7 hours, when clearly Ive been charging every night. Is this a bug?
Click to expand...
Click to collapse
Looks like TasKilla is abusing it's launch on startup power. You should remove that app. No app should be using that much over a 4 day period unless you had it running for that long.
Yes it's a bug.
Four hours of use is not the same as four hours of screen time.
Sent from my Infuse 4G
AdamOutler said:
Looks like TasKilla is abusing it's launch on startup power. You should remove that app. No app should be using that much over a 4 day period unless you had it running for that long.
Yes it's a bug.
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Click to collapse
sent from a piece of plastic and glass It says CPU usage is 1 hour
sent from a piece of plastic and glass
noside12123 said:
sent from a piece of plastic and glass It says CPU usage is 1 hour
sent from a piece of plastic and glass
Click to expand...
Click to collapse
out of a total of 11 hours of processor usage. Just sayin... As a rule of thumb, good android software spends 99% of it's time dormant. That thing is using more processor then it should.
So I finally think I got my phone set up how I want it. I was wondering if you guys think that this is good? As far as screen time and length of constant usage it is the best i have had. I dont know how it will be under normal usage but i am hoping i will be able to go a whole day when i am not TRYING to burn out the battery.
My phone seems to be running awesome and real smooth minus the proximity sensor problem on phone calls... and the occasional wierd little glitchiness from the ICS tiny bugs. like once the white text turn green in lock screen and lock screen didnt sense my touch and kept green flickering. forcing me to pull the battery. With the occasional little glitches that make me turn it off and then on to reset it. Had it since it leaked and have had to restart and pull battery a total of maybe 5 times. With gingerbread I would have glitched maybe once every couple weeks.
MY Phone:
NS4G ICS 4.0.4 IMM26 Stock n Locked.
Some GApps disabled that I don't use. I leave off GMAPS until I use it. Only a couple widgets on my home screens.
Obviously have it setup with a black background. Settings how I like them now. Had the screen on the whole time to test this. Screen brightness around 60%. This is the best battery usage I have had. When checking running apps my Ram usage is right around 140 used with no apps open. Just in case anyone is wondering.
I had 3g on at first 2 bar signal for the first couple hours. I was on the internet cruising forums, groupon, craigslist, watching rock climbing videos. played some bubble blast. a little bit of gt academy racing and some other games.
then turned on wimax with great signal the second half. doing the same stuff. scren on the whole time. playing with my phone the whole time. except for maybe 30+ minutes when i was eating and stuff.
Before this on gingerbread, I averaged about 3 hrs screen on time. Also when I first loaded ICS I BURNED thru battery Under this type of usage.
here are my screen shots. IS THIS GOOD,GREAT OR NORMAL OR WHAT you think?
With my combo i get more than that. Playing all the time, with wi-fi on, 3G always, i get over 7/8hrs.
all depends on rom/kernel selected..
kalitza said:
With my combo i get more than that. Playing all the time, with wi-fi on, 3G always, i get over 7/8hrs.
all depends on rom/kernel selected..
Click to expand...
Click to collapse
What do you have? I get nwhere near that
Sent from my Transformer TF101 using xda premium
I would say five and a half hours sounds pretty decent even with brightness at 60 percent. I keep my screen on auto brightness but have never tried leaving my screen on nonstop. I should try it sometime lol
kalitza said:
With my combo i get more than that. Playing all the time, with wi-fi on, 3G always, i get over 7/8hrs.
all depends on rom/kernel selected..
Click to expand...
Click to collapse
Thanks for responding everyone.
Jinsoku3g- What setup are you running? About how long do you think you burn thru a battery at those settings i described?
Kalitza-
WOW that is a lot. What combo do you have? What brightness setting? I am trying to compare what i can get before i go the custom rom route to make sure it is worth it.. If i can actually get 2 hours more screen on time with the same screen brightness settings then i would definitley make the switch. Lower brightness settings and auto brightness saves a ton of battery and bumps me around the 7 hour mark.... considering auto bright mode is always around 25-30% when i check it. my screen is never over 70%... it is so bright i cant look at it up close.. lol...
Also, are you OClock'd/UC and/or OVolt'd/UV?
So as long as we are at comparable screen bright levels. It makes me think how much better it could be. Would like to plz know yer stats upon testing? Screen % and Oc/Ov-Uc/Uv. Do you have any screenshots?
Thanks for the input guys. I am always up for hearing more about where i stand in your opinions. I know why/why not to root and all that. Just wanting to see if my stockness tweaked is comparable enough to please my needs.
Why do people keep saying that the battery life of the HTC One S is awesome?
I seriously get no more than 4 hours of screen time (although the standby time was 30 hours) and thats with very very aggressive battery saving methods. I just can't get more than that. Most of the time between 2-3 hours under moderate/heavy use with standard settings.
Same thing goes for AMOLED. Yesterday I was only using the stock browser with INVERTED colors, aggressive battery saving profile and nothing else. And still, still I only got 4 hours out of it. How is this even possible? I mean everything on my phone was pitch black. Wallpapers, themes, websites. But under normal use I basically get the same results?
Has this been a lie all this time?
I´d say 4 hours of screen time is pretty good.
At least assuming you havn´t had it to min. brightness.
I think people aren't comparing the same figures
screentime vs battery uptime
4 hours of screen time with 30 hours of total use is pretty damn good for any smartphone.
I've owned several android devices and the difference in battery life from all the others to the One S is ridiculous. I really don't see what you're complaining about.
Sent from my HTC One S.
I don't think that the Battery is that great. If i use it moderate i survive a day. That is okay but not great. My galaxy S lasted a half day longer...
But it is realy useless to discuss it. There is no standard for moderate or heavy use. If i use it very low because i am busy with something else it holds two days and more...
But 4h screen on and still 30h runtime sounds pretty good to me too
I did 2 hours of on screen time (browsing the internet over Wifi, downloading apps, etc.), and my battery went from 100% down to ~70%. I'm pretty happy with that.
stoneyjonez said:
I've owned several android devices and the difference in battery life from all the others to the One S is ridiculous. I really don't see what you're complaining about.
Sent from my HTC One S.
Click to expand...
Click to collapse
+1
I get a full days worth. And I'm a heavy user. Currently using leedroid 2.0
Sent from my HTC VLE_U using XDA
One day is the most u get by heavy using a smartphone. This thread is non sense.
WCCobra said:
I did 2 hours of on screen time (browsing the internet over Wifi, downloading apps, etc.), and my battery went from 100% down to ~70%. I'm pretty happy with that.
Click to expand...
Click to collapse
thats 6.7 hours of browsing while on wifi. I am not even getting 4 hours of browsing with inverted/black colors on 3G.
Guys, this phone has an AMOLED screen and I am browsing the web where virtually everything is pitch black except text while wifi/bt/gps/sync is disabled and virtually no other background processes are running except for the android stuff and one app called tasker. Auto-brightness enabled. The screen is basically off except for the text! I took it to the extreme but where are my power savings?
Even standby time is not that impressive. Anytime I am not using the browser the phone is in 2G mode, no wifi/bt/gps/mobiledata, auto rotate turned off, auto brightness enabled, no widgets, disabled all the status bar icons such as time/battery/signal icons, no wallpaper, no other fancy stuff. Just a grid of icons on my homescreen and tasker running in the background.
I had colors on my iphone and I get way more browsing time while not compromising at all with the other stuff.
Totòòò said:
One day is the most u get by heavy using a smartphone. This thread is non sense.
Click to expand...
Click to collapse
Thats true. But I guess I am not even getting 1 day or 8 hours of screen time
Set the brightness down to min and/or try a custom rom. I was on stock, but I hear the battery life improves quite a bit on some of the custom roms available.
Also, this phone is significantly faster (spec-wise) than the iPhone. If you want longer battery life, perhaps you should switch to a phone that allows you to swap out the battery (GS3), or go for a low-end phone like the iPhone.
I should also add that the updated firmware 1.70, 1.78 also extends battery life. Those updates have not been released to U.S. phones yet.
OP -- seriously? Are you complaining? Find me a smartphone with better battery life with a comparable specs-to-batterySize. Droid Razr Maxx doesnt count, as its battery is 2x as large.
I took mine off the charger at work @ 5pm yesterday. It's now 10:23am, and I'm at 72%. I did a decent amount of web browsing, calls, and texting, and some music.
OP can you send me the browser apk with the inverted colors?
Sent from my HTC VLE_U
Hgaara said:
OP can you send me the browser apk with the inverted colors?
Sent from my HTC VLE_U
Click to expand...
Click to collapse
Stock browser has it already. Settings -> Accessibility -> scroll down a bit and you will see inverted rendering. Basically makes every B/W and inverts the blacks and the whites.
I was btw running CM9 alpha6. And seriously I don't really know about the other smartphones since I have only used the iphone 4. I believe that smartphone gets more screen time. So probably the iphone 4s too. I think the 1X and 1XL gets better screen time when I read the reviews and with the latest updates.
" or go for a low-end phone like the iPhone."
LOL!
I was confused about this for a moment. I think you think that the battery time left is what your screen shot says 4 hours and change. That's the time it has ben off the charger blnot what's left on battery. That seems normal to me for it to be @ 60
Sent from my HTC VLE_U using XDA
I can get almost two days of moderate use, including tethering on the stock Rom. I'm sure not every phone is equal but the battery life on this phone's exceeds my HTC Aria, iPhone's and my G2x.
Sent from my HTC VLE_U using XDA
micxploed said:
I was confused about this for a moment. I think you think that the battery time left is what your screen shot says 4 hours and change. That's the time it has ben off the charger blnot what's left on battery. That seems normal to me for it to be @ 60
Sent from my HTC VLE_U using XDA
Click to expand...
Click to collapse
His first screen shot tells us he got 4 hours and 7 minutes of screen on time and it accounted for 65% of his battery usage.
Which it way better then I get I only get about 2 hours of screen on time out of a full day of usage.
And the OP is right that IOS is the king of battery live when it comes to web browsing.
dc211 said:
His first screen shot tells us he got 4 hours and 7 minutes of screen on time and it accounted for 65% of his battery usage.
Which it way better then I get I only get about 2 hours of screen on time out of a full day of usage.
And the OP is right that IOS is the king of battery live when it comes to web browsing.
Click to expand...
Click to collapse
Wrong my battery was at 6% (actually even lower like 3% but I didn't take a screenshot). And the display accounts for 65% of that battery drainage. Don't you guys use android at all?
Btw according to that graph its getting 5-6 hours. But why am not even getting 4 hours max? When I did as much as possible to reduce battery consumption. Going as far as to invert the colors. I was expecting major savings. After all isn't the screen suppose to be off when its displaying blacks? I am very skeptic about amoleds now and the claims that it saves battery life when displaying dark colors. And how this is all the time used as a pro. I think its phony.
No one is going to browse the internet like me and it didnt even work
so as it may be known, i came from an iPhone 4S and traded that for an HTC One X, i've had it for a little over a week and i really like it a lot BUT (you knew that was coming i think..) the battery is below par, i get about 3, on a real good day 4 hours of usage from a full charge. i only auto sync mail, screen is on 25% (also tried auto for a few days), when at home it's connected to WiFi, data off and when i go out the other way around, GPS and Bluetooth are off at all times. the main thing i do on my device is Twitter, Google+, Facebook and Instagram, + some light browsing the Internet. i understand the screen and processor take quite some battery but it's not cool to only be able to use the device about 3-4 hours before running empty. emailed the guy i traded with and he said he got about 7hrs, which would be awesome after dealing with 3-4 ;}
i am using Nova Launcher Prime, but prior to that when i ran Sense the battery was about the same. may just revert to stock to see how that will affect the battery, even though i will miss my widgets and setup. i also emailed HTC and was considering going to AT&T but since i traded the device i doubt they'll be much help.
what do you guys get... and what if anything did you do to improve it ?
thanks.
How much screen on time? 4 hours is nuts. I easily got 24 hours on stock, with light usage, maybe even a day and a half. The 2.2X versions firmwares seem to get better battery life. Just this morning I had just under 50% battery left after 24 hours, with 1 hour screen on time.
If screen brightness in on "Auto" turn that off, and set it to something like 40-50%. That should save you some, but doesn't account the type of battery drain you are talking about.
Might be some runaway processes. Or any possibility you are in a fringe LTE area?
on screen time is what i was reporting, round about 4 hours -which yea is pretty horrible i'd say. i even have the screen brightness lower; 25%. checked the processes and for what i know nothing out of the ordinary, but i'm a novice Android user so.. prior to yesterday i only used 4G when out, so at home i stayed on WiFi.
battery stats now:
- 76%
- 5h 8m 54s on battery
- screen on 59m 28s
Screen on time of 4 hours very normal, and its good for a smartphone. Everyone uses their phone differently, of course. But 4 hours of screen time gets most people through a day, and charge overnight. What type of screen on time did you get with the iPhone?
roeiboot said:
on screen time is what i was reporting, round about 4 hours -which yea is pretty horrible i'd say. i even have the screen brightness lower; 25%. checked the processes and for what i know nothing out of the ordinary, but i'm a novice Android user so.. prior to yesterday i only used 4G when out, so at home i stayed on WiFi.
battery stats now:
- 76%
- 5h 8m 54s on battery
- screen on 59m 28s
Click to expand...
Click to collapse
Your stats are very normal for this phone model. The One XL screen is gigantic, but isn't AMOLED and as such uses much more battery life to power than some other Android devices. I get ~3 hours of screen on time in a days use of battery, and that is about 10-15 hours away from a charger. From what I can gather of your usage, if you are looking to extend your battery life, the only thing to do is leave the screen off more.
Do you flash custom ROMs? If so, try a custom kernel that allows you to change the CPU governor and clock speeds. The processor in the One XL maxes out at 1.5GHz by default, but you can underclock it to 1.2GHz with no noticeable detriment to performance. Also you can set the minimum frequency to an even lower clock speed, which allows the phone to use even less power when idling. Finally, make sure that the CPU governor is set to Ondemand. Powersave actually doesn't save as much power as you would think!
my favorite part was when he compared a tiny 3.5" screen to a 4.7" screen and expected the same battery life, even though it is roughly the same
Firstly, 4 hours screen on time isn't bad at all. I'm sorry your only reference is an iPhone.
To get 6+ hours of onscreen time with this phone like I and many others get you will need to do two things. Firstly, flash a custom ROM. CleanROM 4.5 is a good one that's as close to stock as you're gonna get. The second thing you need to do is turn off auto brightness. Leave the brightness set at 35% - 40%. This will improve battery life immensely. And no, 40% brightness is not dim.
Happy flashing!
10-12 hours up
5hrs 15mins screen on
Everything synced
Sent from my HTC One X
redpoint73 said:
Screen on time of 4 hours very normal, and its good for a smartphone. Everyone uses their phone differently, of course. But 4 hours of screen time gets most people through a day, and charge overnight. What type of screen on time did you get with the iPhone?
Click to expand...
Click to collapse
with my iPhone (GPS on always, WiFi always, screen on about 70-80%) i got an average of 6 hours with peaks of 7. 4 hours with the HTC One X is on a good day.
i did not flash a ROM since i can not unlock the phone (yet). where i compared, referred to the iPhone is based upon the previous owner who said he usually got 6-7 hours on screen per day. it's uncool that people not live by the rule if you don't have anything nice to say, don't say nothing... i'm only trying to get some help here (luckily most members are helpful... i'll try and ignore the others) and my other reference would be a BB Storm, which lasted very long, but the device wasn't very exciting
i'm following the thread where rooting is discussed but i believe there's little progress. AT&T is also not pushing Sense 4.1 (yet, mine has 4.0) and ICS 4.0.4.
just spoke with HTC and they agree it's too short and are willing to exchange battery... downside i would be w/o a phone for 7-10 business days. might swing by AT&T and discuss, "issue" is i was not the original buyer.. he (HTC rep) stated they might give you a loaner (i doubt it..) we shall see.
thanks to those with positive feedback.
so far..
click here for today's results --16% left.. slightly over 3hr on screen time.
roeiboot said:
just spoke with HTC and they agree it's too short and are willing to exchange battery...
Click to expand...
Click to collapse
It really depends on how you use your phone, and not all screen-on time is the same. 4 Hours is screen time is pretty good, and pretty on par with what other users on here have observed. The phone is new to you, so I bet you are using it like crazy. If that use includes a lot of internet, playing video, or games, its going to use more battery than some other activities. I don't know if a replacment is going to make you any happier.
You also have to consider, aside from a much larger screen, its also much higher resolution than the iPhone. Pushing all those pixels by the GPU takes power. The CPU is also much faster than the iPhone (and just about any other smartphone except the Galaxy S3), again using more power. Screen time may be less, but its doing so much more in that time.
4 hours, if I made would be somewhat acceptable, yesterday I had a little more then 3. I do not play game, I manly do social media & a little surfing..
Sent from my HTC One X using XDA Premium HD app
my battery would last over 24hrs until the OTA 2.20 update now im lucky to get 12hrs out of it. Did they change something in the update?
leighton1245 said:
my battery would last over 24hrs until the OTA 2.20 update now im lucky to get 12hrs out of it. Did they change something in the update?
Click to expand...
Click to collapse
The 2.20 OTA has an new radio. So its possible that the new radio happens to result in worse reception (and therefore battery life) than the previous one. Newer radios do not always get better results for all people, as its very geographically dependent.
redpoint73 said:
The 2.20 OTA has an new radio. So its possible that the new radio happens to result in worse reception (and therefore battery life) than the previous one. Newer radios do not always get better results for all people, as its very geographically dependent.
Click to expand...
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Thank you for the reply and yes the radio looked like it was a new one and in PA i dont get that great of service everywhere.
Yeah, 4 hours of screen on time is normal so I definitely don't think you have any sort of defect. Signal strength also has a lot of impact on battery life. Keep brightness as low as possible while still being comfortable to your eyes (battery life isn't worth putting extra strain on your eyes). I use an app called display brightness that allows you to change brightness by swiping across the statusbar. I keep mine at the lowest level and just swipe a bit to increase it when I need it and then swipe it back down when I'm done. A custom rom could help some. If nothing else, root so that you can use something like better battery stats to give you more info on what's happening behind the scenes so you can make some adjustments. Although I'm not one to push using this, you might want to install something like juice defender to see if it helps. Verify you don't have some app running in the background unnecessarily chewing up cpu use. Note though that just because an app is running in the background doesn't mean you should kill it. As long as it's not doing anything, it's better for it to be running than to have to load it up (especially if it's an app you use frequently). A couple of other things to verify, don't use push notifications / syncing (I keep background syncing off a manually sync (well, I use Tasker to sync things at different times of the day)). If you can, use wifi. If wifi isn't available, turn it off. Also make sure wifi notifications are off and that you aren't using 'best wifi performance' (both under wifi advanced settings).
I'm sure there are some others I missed but hopefully these help and at least give you a starting place. No matter what though, enjoy your device and don't obsess too much with the battery. Once you've gotten over the 'new toy' syndrome, you should get a days use out of it. I pretty much take mine off charge in the morning and put it on charge before going to bed with around 30‰ left. Sometimes more, sometimes less. 3-4 hours average of screen on time, 30-60 minutes of calling.
Sent from my One X
^^^^Thanks for the tip on that brightness app. Very impressed.
Sent from my HTC One X using XDA Premium HD. In between Force Clo...
Vendetta-NY said:
^^^^Thanks for the tip on that brightness app. Very impressed.
Sent from my HTC One X using XDA Premium HD. In between Force Clo...
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Np. Been using it since early on and it continues to improve. One of those handy must have apps.
Sent from my One X
update.
went to the AT&T Device Center (did not know it existed until the regular AT&T store told me about it...) they played with my phone and concluded that the battery was draining too fast while using it, so w/o discussion they exchanged it.
got a follow up question since AT&T did not know, with the iPhones i would let them drain all the way down at least and then fully recharge and leave it on the charger for an extra 2 hours after it being 100%, i *think* that helped condition the battery.. anything you guys can suggest anything for me to to now that i have a new device to maybe improve/condition the battery ?
thanks.