I have epic 4g now for a week. Its still not activated, just sits at home connected to wifi - while I use touch pro2, awaiting sero plus on oct 1st.
There is push sync with hotmail and google. I get home and play almost constantly with the phone from 5 to 11pm - testing new apps/games, reading twitter etc - before I get low battery warning.
My biggest surprise was that the SCREEN (supposedly high efficency AMOLED) is draining more than 40% of the battery! Not the wifi, not the cpu or whatever else is inside. This is with default power managment settings.
What numbers do you guys get in the end of the day? What are you using - 3g,4g,wifi,gps,apps?
Sent from my SPH-D700 using XDA App
Sometimes mine goes as high as 72%, and that's the screen alone, and i have the brightness down all the way to zero (and even at zero it's still plenty viewable).
Definitely the screen is the biggest battery drainer. I've NEVER seen anything higher usage than the Display. Its usually in the 60-80% of battery usage.
And I keep the power to the lowest setting on a daily basis.
The screen is always the biggest offender. Usually in the 70%+ range with brightness all he way down. The samoled talk is just marketing bs. Maybe better performance when the screen is black. Unfortunately all black backgrounds happen to be the minority on websites, applications etc.
Display used to be the main offender on my phone (60-70%) but since I upgraded to DI07, Cell Standby is crushing my battery. The airplane toggle doesn't do ****, had to buy a cable so I can plug it in at work just so at the end of an 8hr day I have more than 30% battery left even with JuiceDefender running. Getting pretty frustrated.
kidstechno said:
Display used to be the main offender on my phone (60-70%) but since I upgraded to DI07, Cell Standby is crushing my battery. The airplane toggle doesn't do ****, had to buy a cable so I can plug it in at work just so at the end of an 8hr day I have more than 30% battery left even with JuiceDefender running. Getting pretty frustrated.
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I have this exact same issue. Cell standby is killing my battery. Right now I have 18% time without signal... it has been as high as 25% before. I never had this issue before DI07.
Cell Standby is 41%, with Display at 32%, time without signal is a whopping 50%, and I get near-full to full bars at work and about 2-3 at home.
my cell standby was over 50% after the update. I went in and changed my call setting>System select and chose "sprint only" which will not allow the phone to roam, but it got rid of this battery drain. I have a lot more battery now. But i will have to turn it back whenever i loose service. There's got to be a better way to avoid this thing always looking for the GSM towers when it's a SPRINT PHONE and should for CDMA unless there's no signal. I don't understand how they allow such a dumb issue to haunt tihs phone.
My current numbers:
Cell Standby: 34%
Phone idle: 25%
Display: 17%
Android System: 10%
Email: 5%
Maps: 3%
Dialer: 2%
Wi-fi: 2%
Android OS: 2%
Cell standby has gone up for me since the update, but my last charge was actually the first time I saw any significant "time without signal", and I think that was because I had 4G turned on all day. I have it turned off now and that number is back to 0%.
I'm learning some tricks to keep the battery charged on this thing. Yesterday I managed to go all day from waking up to going to sleep without charging (around 18 hours, though I rebooted at one point so I'm not sure the actual total) and I still had about 1/5 of my battery gauge left.
I've found wi-fi makes a HUGE difference. I have wi-fi both at home and at work, and that's probably 80% of an average day for me. Wi-fi drains the battery *much* less than 3G.
I have my screen turned down not to 0, but probably 2 ticks over that. I use the notification bar swipe to turn it up or down, so I don't know exactly, I just set it to as dim as I'm comfortable with in any situation. Power mode and auto-brightness are turned off.
I switched my background from the default to one that's very dark. I'm convinced that makes a big difference.
I do use a task killer, but I leave my email running, along with whatever else seems like it should be kept running.
Obviously when you look at percentages, there's always going to be *something* at the top of the list, so it's pointless to constantly try to knock whatever's #1 down to the bottom. Different people use their phones differently, so if someone else has their display at the top, it just means they're looking at it a lot and maybe have it too bright. But no matter what you do, something's always going to have a higher percentage than anything else.
badasscat said:
My current numbers:
Cell Standby: 34%
Phone idle: 25%
Display: 17%
Android System: 10%
Email: 5%
Maps: 3%
Dialer: 2%
Wi-fi: 2%
Android OS: 2%
Cell standby has gone up for me since the update, but my last charge was actually the first time I saw any significant "time without signal", and I think that was because I had 4G turned on all day. I have it turned off now and that number is back to 0%.
I'm learning some tricks to keep the battery charged on this thing. Yesterday I managed to go all day from waking up to going to sleep without charging (around 18 hours, though I rebooted at one point so I'm not sure the actual total) and I still had about 1/5 of my battery gauge left.
I've found wi-fi makes a HUGE difference. I have wi-fi both at home and at work, and that's probably 80% of an average day for me. Wi-fi drains the battery *much* less than 3G.
I have my screen turned down not to 0, but probably 2 ticks over that. I use the notification bar swipe to turn it up or down, so I don't know exactly, I just set it to as dim as I'm comfortable with in any situation. Power mode and auto-brightness are turned off.
I switched my background from the default to one that's very dark. I'm convinced that makes a big difference.
I do use a task killer, but I leave my email running, along with whatever else seems like it should be kept running.
Obviously when you look at percentages, there's always going to be *something* at the top of the list, so it's pointless to constantly try to knock whatever's #1 down to the bottom. Different people use their phones differently, so if someone else has their display at the top, it just means they're looking at it a lot and maybe have it too bright. But no matter what you do, something's always going to have a higher percentage than anything else.
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Click to collapse
How are you able to control the brightness with the notification swipe? I've made it brighter but not dimmer.
Sent from my SPH-D700
So for all the people that have their phone on the lowest brightness, but get a Display usage >50%...are you using your phone that much?
Because I have my display on auto, and my Display usage is a 32%, and that is still enough for it to be #1 on my battery use list.
First, let me get the immature response out of the way: "What sucks my battery? Your MOM!"
Now that that's out of my system, my battery drain is generally caused by the same things as everyone else: screen and TWS. Although I mitigate TWS by using the airplane mode trick which seems to still work for me.
Iilex said:
How are you able to control the brightness with the notification swipe? I've made it brighter but not dimmer.
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I dunno, I just do. The way the thing works is a little tricky, it seems like it's absolute rather than relative, meaning if your display is already on the dim side, you need to start with your finger way over to the left to take it down the last few ticks. There's only so dim you can make it - the lowest brightness setting would look like a 4 or 5 year old phone at its brightest. That's true regardless of how you dim it. So you may just have it pretty dim and because of the way the notification bar thing works, when you put your finger in the middle, you're making it brighter without meaning to. But if you slide all the way to the left, it'll be as dim as you can make it.
jemarent said:
my cell standby was over 50% after the update. I went in and changed my call setting>System select and chose "sprint only" which will not allow the phone to roam, but it got rid of this battery drain. I have a lot more battery now. But i will have to turn it back whenever i loose service. There's got to be a better way to avoid this thing always looking for the GSM towers when it's a SPRINT PHONE and should for CDMA unless there's no signal. I don't understand how they allow such a dumb issue to haunt tihs phone.
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Click to collapse
+1 to this, after I changed this setting my time without signal is about 3% before it was up in the 50's. Good tip right there
Sent from my SPH-D700 using XDA App
I guess this is a commom issue... Unless epics hardware is sooo optimized and only sips power ;-)
Does anybody have data from other android phones - nexus, droids...?
Sent from my SPH-D700 using Tapatalk
3-4 hours of talk time takes up 70% of my use during a 10-16 hour usage. Second would be my screen.
My screen is 79% and cell standby only 7%
My screen is all the way down, even tho with the new update I notice my screen got dimmer than before.
Sent from my SPH-D700 using XDA App
Display Brightness problem with my Galaxy S
Hi I have bit of a problem with my galaxy S' display. The display uses a ton of power (90% +, going down 1% every 2-3 minutes with display on) as per the OS usage data. I have not experienced brightness settings / power saving mode as having any effect in terms of extending my battery life.
Now here's why I think there might be something wrong with my phone. I know two other people that also have a Galaxy S. We come together often last time I noticed their displays are MUCH MUCH brighter. I took all three phones on the table and noticed that regardless of the brightness level I set on all three phones, whether it be the minimum brightness setting or full brightness (all 3 phones SAME settings of course) mine is always the darkest. Also their phones display 40-60 % from the total power used by their display's rather than mine always showing 90%+.
I tried a battery recalibration etc this doesn't do anything in my view. After trying some great suggestion on this forum, I alway set the display to its lowest brightness setting, still no difference.
One of those other phones is running the same S/W as mine (doc's rom JPA) the other is still on JM2, so I can definitely exclude the firmware version as a cause.
Any thoughts suggestions as to how to solve this? Or might I just as well stop bother with that and have Samsung exchange the phone's display?
I have the same problem.. Did you find a solution?
nikiiv said:
I have the same problem.. Did you find a solution?
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Hi, No unfortunately I didn't. It is kinda strange I'm not getting any response on this thread. If you and I are having the same issue, I find it hard to believe we'd be the only ones!
There is a "smart management" option under settings (saves battery). This seems to change contrast etc when enabled and makes screen dimmer. I have to SGSs and I can confirm that, Check it and tell me whether it worked.
nb: this option will make a full white screen dimmer than if you have half white and half black (the white will be brighter in the second case - probably to improve contrast).
Hmm.. this is what I did.. I placed the brightness slider to the left and switched on the automatic brightness control. Now battery use does not show 50% or more in average use, but seems normal, like it was before froyo
Smart Management is off
Hi Guys,
Since I have BroodRomRC2 with Cranium v6 Kernel my battery stats are weird. It sais my display is using a lot of battery, but I have set the lowest brightness there is. I already tried to fix it by resetting Battery Stats in Recovery... What can I do?
Sent from my GT-I9001 using xda premium
It's normal having display usage around 50%, the only way to make it last longer is displaying dark images, since super amoled screens waste more battery with bright images than dark ones, 'cause we have not retroillumination but each pixel is emitting his own light. Dark/Black backgrounds, dark themed apps etc improve battery time.
Mine with heavy use is around 40%. Dark background, black themed GOsms, black gReader, and so on..
BTW, wrong section
One thing i have realised since i have switched off automatic brightness and set screen to lowest brightness. Androids own browser is using more brightness than other programs. That is one of the reasons i have started to use other browsers.
brightness setting
mal13 said:
One thing i have realised since i have switched off automatic brightness and set screen to lowest brightness. Androids own browser is using more brightness than other programs. That is one of the reasons i have started to use other browsers.
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Click to collapse
Press the menu u'll see brightness setting. Change it. The default browser is the best
If your screen is the biggest consumer of energy it means you have a very batterysaving rom be happy with it !
Anybody else got battery drain while listening to music? (mediaserver drains about 40% when only music is on)
So I've been trying to find a solution to this 5% battery screen dim/camera flash dilemma for some time now when trying to calibrate my zerolemon 100000mah battery on my note 4. I've read many forums and no one seemed to have an answer. I stumbled upon the answer today and felt I needed to share with everyone.
Go to setting/developers options and click "stay awake".
That's it. That freaking simple.
My phone is currently at 1% and my screen is bright and I have no functionality loss whatsoever.
Hope this helps someone.
Update
spidey_rwm said:
So I've been trying to find a solution to this 5% battery screen dim/camera flash dilemma for some time now when trying to calibrate my zerolemon 100000mah battery on my note 4. I've read many forums and no one seemed to have an answer. I stumbled upon the answer today and felt I needed to share with everyone.
Go to setting/developers options and click "stay awake".
That's it. That freaking simple.
My phone is currently at 1% and my screen is bright and I have no functionality loss whatsoever.
Hope this helps someone.
Click to expand...
Click to collapse
Turns out it wasn't the "stay awake" but the fact that I was using UC Browser, had just watched a video with full brightness (using the left side screen slide (on screen) ) and when I exited the app the screen stayed bright.
I've not seen any other solution to this issue. But this actually works. It was a coincidence that made me believe it was the "stay awake" button. But now I have that turned off and still have full display brightness at 1%.
Im having a problem with the lcd backlight and figured I would ask here. I've had a v20 rooted since Dec of 2016 and luckily have been spared from many of the hardware problems other users here have suffered. Just today, after watching Youtube videos for about an hour at maximum brightness, my main display just went completely dark. With the backlight bleed over from the second screen, I could see my display, but without it on I can't see anything. I'm assuming the backlight has somehow become broken. I'm assuming the only fix for this is a screen replacement, which at this point I don't want to do. Just curious if anyone has had this happen, or if by a miracle this may be bad software that is fixable without replacing parts. Thanks to any and all info in advance.--Philip
Edit-Just now thinking it may have been a thermal issue. Phone is still noticeably warm about 5-10 minutes after a battery pull and being shutdown completely. Smelled the back of the phone and noticed a slight smokey scent. Potentially watching videos at max brightness caused a meltdown? Idk just trying to figure out what the heck happened
Edit 2- So plugging in the phone while powered off to check battery levels has wielded wildly different results. Fist time I plugged it in it was 5%. Then unplugged and replugged immediately and it was 30%, and now a third time it is down to 10%. Wondering if the battery could be bad? Don't have extras to test a different one, but the original shows no signs of deformation. Wondering if a failing battery could cause the main display to disable. Anyways just another thought
Hello. I know its has been a long time but is there any update to your problem. I am in the same boat.
Regards