[Q] Voice calls draining battery - Vibrant General

I have noticed my battery seems to be draining excessively and the voice calls seem to be the culprit. Attached are two screenshots, one of the overall battery usage over 17 hours, and another showing the hour and a half of voice calls that composed 70% of my battery drain. With these numbers, Samsung's claim of 6.5 hours of talk time seems completely outrageous. Anyone else having similar drainage or is this abnormal? Any feedback will help. I'm trying to decide if I need to ask for a replacement (which would be the second replacement). Oh and battery was at 4% when this screen shot was taken.
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I'm also experiencing the same issue... talked for 4minutes and 44 secs.... and it took 17% of my battery.... my 2nd vibrant btw, 1st one was atrocious and drained even more

Same thing here, unrooting, and trading out tomorrow...maybe that'll help... :/

If you are in a low reception area during a call it will drain more of your battery.
Sent from my SGH-T959 using XDA App

Agreed there is a problem with the radio on this phone... hopefully an update will fix it. I notice all the time that my phone will show zero or one bar when I am in a service area. I will still be able to make calls, but the reception is constantly changing and dropping bars.
I have also noticed that like 2min voice call will account for about 12% battery drain.
sent from my Vibrant.

Has to be something else because I have been on 30+ minute calls while driving home and barely used 1-2% of my battery, and I KNOW that the drive goes through an E only area or two

I have also noticed that my 3G reception is really really crappy. My G1 has full 3g reception right now, while my vibrant has 0 to 1 bar.
So I turned off 3G, and made a couple calls. 9 min talk time, 41% battery use.

I just finished a 42 minute call and my battery indicator dropped 8%. At that rate I would easily exceed 6 hours of talk time.
I think that it's completely dependant on the signal strength in the spot where you are making the call. The phone has to scale up the radio's power if the signal is weak. If you are on the edge of coverage you may not be able to talk for 6 hours.
Sent from Samsung Vibrant

The reception is another issue. Sitting in the same spot, over the past few minutes I have had full 3G reception, down to 0 bars 3G, down to one bar of E, and back up. The reception fluctuates even more when I'm on a call. If I have full 3G reception before the call, when I hang up, I may not even have E. This phone really has serious potential but between all these problems and the GPS issues as well, I'm very disappointed. Might just return my second vibrant and wait for another phone to be released that isn't riddled with issues

both signal reading and gps fluctuate and sometimes struggle indoors, but both have been rock solid outdoors for me. i was locking onto 3-4 satellites yesterday, and general reception for data/voice has been stellar, regardless of number of bars shown. no compass issues here either.
haven't really made a lot of voice calls, so i can't comment there. but my battery life has been satisfactory thus far.

The percentage just shows what share that process is taking up. If you had full battery and barely use the phone and make a call, the voice process is going to show up as a huge percentage.
Or are you saying your battery gauge goes from 100% down to 59% after a short call?
Sent from my SGH-T959 using XDA App

Jayrod1980 said:
The percentage just shows what share that process is taking up. If you had full battery and barely use the phone and make a call, the voice process is going to show up as a huge percentage.
Or are you saying your battery gauge goes from 100% down to 59% after a short call?
Sent from my SGH-T959 using XDA App
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I tried to clarify this is my first post. My battery was down to 4% in the screenshots I posted, so of the 96% of the battery that was used, 70% of that was used on voice calls. So essentially, an hour and a half of voice calls used just under 70% of my battery. Definitely wouldn't get close to the 6.5 hours of talk time that samsung claims

Babyface1249 said:
My battery was down to 4% in the screenshots I posted, so of the 96% of the battery that was used, 70% of that was used on voice calls. So essentially, an hour and a half of voice calls used just under 70% of my battery. Definitely wouldn't get close to the 6.5 hours of talk time that samsung claims
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I don't think the battery indicator works quite like what you are thinking. I believe if you had a full charge and used 90 minutes of phone calls the battery use statistics would show nearly 100% of battery use (as it's the one process used to drain the battery) however your battery percentage of charge left would be more like 70%? (just guessing).
I'm not exactly sure on this but I think I'll try it out on my next charge. I have a few friends that can easily chat on and on for an hour and a half

johnnyh64 said:
I don't think the battery indicator works quite like what you are thinking. I believe if you had a full charge and used 90 minutes of phone calls the battery use statistics would show nearly 100% of battery use (as it's the one process used to drain the battery) however your battery percentage of charge left would be more like 70%? (just guessing).
I'm not exactly sure on this but I think I'll try it out on my next charge. I have a few friends that can easily chat on and on for an hour and a half
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I think you are misunderstanding. I charged my phone fully. Then used it for roughly 17 hours, over the course of which i made 1.5 hours of voice calls. after the 17 hours, the battery had been drained to 4% remaining. of the 96% that was used over the course of the day, 70% of that was used in the hour and a half of voice calls.

I DO very much understand what you are saying. What I am suggesting as a possible test it to fully charge the phone, then immediately talked until the phone died, I bet it would give at least 4 hours of talk time. Just a wild guess, I could be wrong.

I just did the math. If 1.5 hours of talk time drains roughly 70% of the battery, then it would only take 2.14 hours of continuous talk time to drain the battery completely.

Here are two screen shots that show readings that don't ready add up. Tell me what you think...
In essence my phone has been running on battery for three hours and nineteen minutes. The display shows it used 50 percent of that three plus hours yet the display was only on for one hour, not 1.5 hours like it should show by using your logic. See what I'm saying?
I'm not trying to be argumentative, I want to get to the bottom of this myself.
Sent from my SGH-T959 using XDA App

I have some battery issues myself.
It seems like some of u got a new vibrant as a replacement because of this issue? Is the problem solved by getting a new vibrant or can it be also done by just getting a new battery?
Thanks,

johnnyh64 said:
Here are two screen shots that show readings that don't ready add up. Tell me what you think...
In essence my phone has been running on battery for three hours and nineteen minutes. The display shows it used 50 percent of that three plus hours yet the display was only on for one hour, not 1.5 hours like it should show by using your logic. See what I'm saying?
I'm not trying to be argumentative, I want to get to the bottom of this myself.
Sent from my SGH-T959 using XDA App
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I could only see one screenshot. But the display doesn't have to be on for 1.5 hours to use 50% of the battery. I think you aren't getting my logic lol. My logic is that almost my entire battery was drained when I took my screenshots, and so in the battery use tab, when it says that voice calls constituted 70% of the battery drain, that means that one and a half hours of voice calls drained the battery 70%. if one and a half hours drains the battery 70%, then in under 3 hours the battery would be completely dead. We on the same page?

I see what you are saying. For me the talk time on the phone is great. I had 40 something percent left on the phone and ended up getting an important call and talking for almost 3 hours and I still had 20 something percent left. I really think you had a weak signal there or maybe some conflict with voice and a app on your phone. I was getting bad battery life for a bit until I calibrated the battery by charging to full, then turning the phone off, letting the battery indicator there go to full, and then charging again with the phone on till it showed 100%. Ever since then the phone has been a champ.
Sent from my SGH-T959 using XDA App

Related

My battery life...

sucks. I know there are threads about this but I just am sick of this. I had the Evo for a bit and I swear that battery life was better.
I don't know if its because of my crappy reception or what--but I can't even last a morning of light use with this phone. Super annoying... I had high expectations but when i'm getting low battery warnings before noon with barely using the phone at all, something has got to be wrong. I did a factory reset, did a full discharge/full charge. after it said fully charged i unplugged and plugged back in. i don't know what else to try. should i replace my phone? ask for a different battery? the date on the battery is 8/14.
Ok my rant is over...publicly that is.
edit: mods you can just delete this thread. i also hate clutter and hate that my rant has added to it. (hopefully we get some sort of update/custom rom soon that fixes battery!)
e3chaos said:
sucks. I know there are threads about this but I just am sick of this. I had the Evo for a bit and I swear that battery life was better.
I don't know if its because of my crappy reception or what--but I can't even last a morning of light use with this phone. Super annoying... I had high expectations but when i'm getting low battery warnings before noon with barely using the phone at all, something has got to be wrong. I did a factory reset, did a full discharge/full charge. after it said fully charged i unplugged and plugged back in. i don't know what else to try. should i replace my phone? ask for a different battery? the date on the battery is 8/14.
Ok my rant is over...publicly that is.
Click to expand...
Click to collapse
The battery life on my EVO is not better.
What do you do with the phone that drains it so much?
Open up your battery statistics. What is using it the most? How long is your display on for (select "display" from battery history and it will say long long it has been on for).
Have you charged it correctly for 1st time use? (charge to 100%, then drain to 0, then charge to 100% again)?
Seems like you are experiencing much faster battery drain than expected. My battery lasts all day long with light use (~22 hours). 10-12 hours under heavy use (3-4 hours of screen on time). I use juice defender as well, and I keep my screen brightness at 0% (still pretty bright) unless I go outside).
hydralisk said:
The battery life on my EVO is not better.
What do you do with the phone that drains it so much?
Open up your battery statistics. What is using it the most? How long is your display on for (select "display" from battery history and it will say long long it has been on for).
Have you charged it correctly for 1st time use? (charge to 100%, then drain to 0, then charge to 100% again)?
Seems like you are experiencing much faster battery drain than expected. My battery lasts all day long with light use (~22 hours). 10-12 hours under heavy use (3-4 hours of screen on time). I use juice defender as well, and I keep my screen brightness at 0% (still pretty bright) unless I go outside).
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i've done everything you said. this isn't my first smart phone.. i've been around a long time. :-/. from what i have been reading some have been getting the ok battery life while others are in the sinking boat with me. just frustrating..i've been giving it more than one chance since i got it at 8am 1 week ago.
Bro turn off wat u don't need. Auto sync is adrain and having data connected is a drain as well. If ur not using the data then turn it off. U can still txt n get calls. N when u wanna check the net or watever then turn it bak on.
Sent from my SPH-D700 using XDA App
I tried all of that with my epic but it sucked the battery way worse than my evo
Sent from my PC36100 using Tapatalk
In Battery Usage / Cell standby, what is your time without signal? If it's high (like over 10%) this will eat your battery, so you'll need to reset the radio by quickly going into airplane mode (hold power) and leaving airplane mode. TWS will drop quickly. Weird bug, you'll have to do this once every reboot, hope it gets fixed.
Also, if you are in an area like work or home that has wi-fi, leave it always on, turn off "notify open networks" and hit Menu / Advanced to switch the wi-fi policy to "never sleep". When you are at home or work the phone will auto connect to these places and do all data over wi-fi which uses less power than 3G, even when the screen is asleep.
Finally, while I leave on window animations & Google Talk, I turn brightness in the browser and on the phone all the way down and turn off haptic feedback except for the capacitive buttons.
I've been unplugged since 8:30am and have been at work & home and texting all day, light surfing, a few phone calls, apps, etc, and now at 10pm I have 65% battery remaining. I think that's pretty good.
​
ss4rob said:
I've been unplugged since 8:30am and have been at work & home and texting all day, light surfing, a few phone calls, apps, etc, and now at 10pm I have 65% battery remaining. I think that's pretty good.
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Click to collapse
Wha?! All that and still 65% by 10pm? If I let my phone sit on the desk from 8:30 am by 10pm I would probably be less than 65%.
The range of experiences is just way too wide on this board. I like this phone so much that I've decided to just accept it drains battery and have chargers everywhere. Plus I have 2 in my house purchased in different stores that exhibit the same power consumption.
ss4rob said:
Also, if you are in an area like work or home that has wi-fi, leave it always on, turn off "notify open networks" and hit Menu / Advanced to switch the wi-fi policy to "never sleep". When you are at home or work the phone will auto connect to these places and do all data over wi-fi which uses less power than 3G, even when the screen is asleep.
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Click to collapse
You wanna explain this to me? Do you mean ALWAYS have wi-fi enabled? Or just when I'm at home? I use wi-fi at home for both the better battery life and faster speeds, but I was under the impression that if I always had it on that it would always be searching for signal, thus being entirely counterproductive.
mc-fine said:
Wha?! All that and still 65% by 10pm? If I let my phone sit on the desk from 8:30 am by 10pm I would probably be less than 65%.
The range of experiences is just way too wide on this board. I like this phone so much that I've decided to just accept it drains battery and have chargers everywhere. Plus I have 2 in my house purchased in different stores that exhibit the same power consumption.
Click to expand...
Click to collapse
This. I don't have all the chargers yet, but come Friday, I'll have two house chargers, an extra computer cable (for school/work), and my car charger. This phone is too awesome to let my battery life ruin it.
I've noticed that web browsing kills it fastest, which wasn't a surprise at all. I usually get 8-10 hours out of it, which is a lot lower than desired, but something I can live with. At least if I get my chargers, I can save the overall life of the battery.
Another thing to mention:
Vibration, while convenient and least annoying to everyone else, is the most power-draining notification you can use. Next is audio. Last is silence (obviously). Having it make noise AND vibrate is like signing your battery life's death warrant.
i think hydralisks epic runs on fairy dust and unicorn blood bc my epic sucked battery like no other.. and thats...screen brightness at 0...no programs running at all. and it still said 77% of battery drain was from the display. lol
+1 yeah battery life does suck worst than evo I rebooted phone once and it was at 40% came back on at 2% had similar problems with moment just have to deal with it juicedefender does help overall its horrible
Sent from my SPH-D700 using XDA App
ryan74701 said:
i think hydralisks epic runs on fairy dust and unicorn blood bc my epic sucked battery like no other.. and thats...screen brightness at 0...no programs running at all. and it still said 77% of battery drain was from the display. lol
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Fairy dust and unicorn blood = I know how to use a phone. Copying word for word what I posted in the other battery life thread............
I'm convinced that if you know what you're doing, you can make the battery last very long.
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First one reads: 21 hours and 29 minutes. For almost 4 hours of that, the screen is on. So you people saying you get 5 hours of battery life are doing something very wrong... or you have a bad phone. I can easily surpass 4 hours battery life with the screen on the whole time. Some of you don't seem to realize that once the phone hits 10-15%, it takes a LONG TIME to get it down to 0%. This is probably due to the battery just not being calibrated yet. At 6% battery I actually had to watch a whole hour of movies to get it to 0%... and even then the phone did not shut down.
Edit: phone was in airplane mode because the battery was at 0% and I didn't want it to crash before I snapped the photos. Cell standby is a major killer of battery. A solution to that (if you have a large cell standby number) is just to toggle airplane mode on and off when you boot up your phone. It works... dont know why. By my cell standby is almost always down to 5-10% now. More info on this issue here: http://forum.xda-developers.com/showthread.php?t=772571
i agree with hydralisk, try toggling the airport mode on and then off. it will reboot the antenna of the epic. the cell standby mode totally drains the phone's battery reguardless of user activity or not. mine was 51% without signal but after the airport mode toggling, it dropped down to 8% without signal and my battery is somewhat better. (i'm a hardcore user so 8-10 hours is awesome for me. haha)
I can say that my first Epic was a bad phone. It wouldn't even last 3 hours on a single charge! It would discharge while browsing amazon.com and bn.com using the built-in browser and while plugged into the AC charger. I thought I was seeing things.
Today, I've exchanged it for a 2nd Epic. It still does discharge when I'm pounding away on it even though it's plugged into a USB charger. But otherwise, everything else is looking at lot better now, especially AC charging.
So there are good and there are some very bad examples of the Epic out there. I believe I've personally had my hands on both kinds.
e3chaos said:
sucks. I know there are threads about this but I just am sick of this. I had the Evo for a bit and I swear that battery life was better.
I don't know if its because of my crappy reception or what--but I can't even last a morning of light use with this phone. Super annoying... I had high expectations but when i'm getting low battery warnings before noon with barely using the phone at all, something has got to be wrong. I did a factory reset, did a full discharge/full charge. after it said fully charged i unplugged and plugged back in. i don't know what else to try. should i replace my phone? ask for a different battery? the date on the battery is 8/14.
Ok my rant is over...publicly that is.
edit: mods you can just delete this thread. i also hate clutter and hate that my rant has added to it. (hopefully we get some sort of update/custom rom soon that fixes battery!)
Click to expand...
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I'm getting great life with the latest rooted kernel by noobl. 5 hours and phones at 98% medium usage
i am getting similar hours to hydralisk.
i love this phone! it looks like there may be a few bad apples in the bunch, but i hope everyone else who got a good phone is enjoying it as well!

Whats the most battery life we've seen?

Alright so, I know people frequently post pictures of their battery life "Unplugged for" screenshots.
So I'm wondering, whats the longest we've seen, with atleast 2 and a half hours of display on-time?
And what ROM/Kernel were they using?
EDIT:
Hit my personal best today, heres a screenshot:
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5% Battery remaining according to Battstatt.
Display time is 2 hours 26 minutes
Time without signal is 86% (Horrible service here)
Voice calls is 21m 13s
You didn't post what rom/kernel you are using.
I'm running the stock rom and getting fed up with the terrible battery life...so I'll be monitoring this thread to see what my best options are.
viperacr99 said:
You didn't post what rom/kernel you are using.
I'm running the stock rom and getting fed up with the terrible battery life...so I'll be monitoring this thread to see what my best options are.
Click to expand...
Click to collapse
Oh my bad man.
I'm running Baked Snack 1.5 ROM with HeroSpecial#2 kernel right now.
Its still at 5% and currently 2d 19h 14m. Could prolly get 3days to read on there if I felt like it.
I have to say I'm getting amazing battery life with Baked snack 1.5. I had the phone running for one day and 18 hours, I spent about 3 hours on the phone and using it constantly to check messages. I'm very happy with my phone.I'm installing 1.6 now, it should make it to two days. I had WIFi on all day.
2 hours of display on time over 3 days? Anyone could get ridiculous battery life if they never use the phone.
The ONLY way to compare battery life semi equally across various roms/kernels/settings and setups is to restart the phone, turn off the display, leave it for several hours without using it at all, and measure what the %loss per hour is for a completely idle phone with no use. The longer you leave the phone idle, the more accurate the measurement of % loss per hour will be. We can then compare how much power various setups are using in idle as a baseline.
Anything other than that is open to people messing with their phone or turning on airplane mode or never using it and claiming amazing battery life.
muyoso said:
2 hours of display on time over 3 days? Anyone could get ridiculous battery life if they never use the phone.
The ONLY way to compare battery life semi equally across various roms/kernels/settings and setups is to restart the phone, turn off the display, leave it for several hours without using it at all, and measure what the %loss per hour is for a completely idle phone with no use. The longer you leave the phone idle, the more accurate the measurement of % loss per hour will be. We can then compare how much power various setups are using in idle as a baseline.
Anything other than that is open to people messing with their phone or turning on airplane mode or never using it and claiming amazing battery life.
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First, that was my normal use for those two + days, didn't have time to use my phone other than for texting and such. And if your a texter, than you know it only takes 20seconds TOPS to reply a text message, and texting is a majority of what I did with those two+ hours. so we'll say 1:45min of it was texting.
20seconds of on screen time per text = about 315 text messages, which is about what I did.
To me that is great battery life, if I can get that much battery to do that than I'm happy.
As for the way you stated, I guess this counts:
When I slept, I slept for 8 hours and some odd minutes and lost 3% the first night and slept I believe 6 hours and lost 2% the 2nd.
I guess that would mean 3hours idle = 1% battery drain judging by your method? Idk. Lol.
SemiGamer said:
First, that was my normal use for those two + days, didn't have time to use my phone other than for texting and such. And if your a texter, than you know it only takes 20seconds TOPS to reply a text message, and texting is a majority of what I did with those two+ hours. so we'll say 1:45min of it was texting.
20seconds of on screen time per text = about 315 text messages, which is about what I did.
To me that is great battery life, if I can get that much battery to do that than I'm happy.
As for the way you stated, I guess this counts:
When I slept, I slept for 8 hours and some odd minutes and lost 3% the first night and slept I believe 6 hours and lost 2% the 2nd.
I guess that would mean 3hours idle = 1% battery drain judging by your method? Idk. Lol.
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Ummm I don't even see why you need this phone if all you are going to do is text with it. There are so many other phones that are smaller, lighter and way better on battery if that is all you do. The LG rumor 2 comes to mind.
socos25 said:
Ummm I don't even see why you need this phone if all you are going to do is text with it. There are so many other phones that are smaller, lighter and way better on battery if that is all you do. The LG rumor 2 comes to mind.
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Meh, I guess since Baked Snacks thread got closed, none of you saw my post in it before it was, stating why I wasn't using my phone much -.-
I was back and forth to the hospital all this week, no time to worry about charging my phone and no time to use it much other than quickly texting. My grandmother is in there but thats a personal note and doesn't relate to any of this.
Anyway, point is, I wasn't able to worry about charging my phone much, and I was impressed that it made it through all that without dying on me, I was planning on not having a phone for a day because I knew I wouldn't be charging it. Thats why I was impressed.
But thanks for the suggestion of yours. I'll be sure to write it on the next piece of toilet paper I use.
And can we please get back to the original reason I posted this thread..?
Nobody has mentioned the best battery life they've seen on the epic.
SemiGamer said:
First, that was my normal use for those two + days, didn't have time to use my phone other than for texting and such. And if your a texter, than you know it only takes 20seconds TOPS to reply a text message, and texting is a majority of what I did with those two+ hours. so we'll say 1:45min of it was texting.
20seconds of on screen time per text = about 315 text messages, which is about what I did.
To me that is great battery life, if I can get that much battery to do that than I'm happy.
As for the way you stated, I guess this counts:
When I slept, I slept for 8 hours and some odd minutes and lost 3% the first night and slept I believe 6 hours and lost 2% the 2nd.
I guess that would mean 3hours idle = 1% battery drain judging by your method? Idk. Lol.
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Click to collapse
Well that seems like some good battery life if you only lost 1 percent every 3 hours. Airplane mode? juicedefender?
muyoso said:
Well that seems like some good battery life if you only lost 1 percent every 3 hours. Airplane mode? juicedefender?
Click to expand...
Click to collapse
Whats the normal drainage for idle phones?
Neither, I just turn 3G off and force roam it at home with Roam control because I get 1-bar while roaming and 0 bars with Sprint coverage at home so roaming helps the Time Without Signal a very little bit, on sprint it runs at 99% without signal at my house and on roam it runs at 80-90% without signal.
SemiGamer said:
Whats the normal drainage for idle phones?
Neither, I just turn 3G off and force roam it at home with Roam control because I get 1-bar while roaming and 0 bars with Sprint coverage at home so roaming helps the Time Without Signal a very little bit, on sprint it runs at 99% without signal at my house and on roam it runs at 80-90% without signal.
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I get a little under 1% an hour when idle usually. I would have to check it again tonight to see what I am currently getting. I am using phoenix 1.43 and EE 1.2.03. I use juicedefender and disable drm and toggle airplane mode and all that nonsense.
i'm curious what most people are getting for % battery loss with screen on. i feel like mine tends to be high across several ROMs and kernels. its varied somewhat of course, i've used AOSP magic, EE, Syndicate and on baked snack 1.6 now. my numbers show approx 1% battery loss for every 2 minutes of screen on. so that would only be 3hrs 20min of screen on time total which is junk, lol. anyone else got reports?
SemiGamer said:
First, that was my normal use for those two + days, didn't have time to use my phone other than for texting and such. And if your a texter, than you know it only takes 20seconds TOPS to reply a text message, and texting is a majority of what I did with those two+ hours. so we'll say 1:45min of it was texting.
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Click to collapse
First, there's just way, way, WAY too much pissing and carping that goes on around here between people about their different usage models.
We each use the phone the way we use it. If you hardly turn it on, you'll get awesome battery life. If you use it like a combination phone/PSP/iPod/Nuvi all day long, you'll get horrible battery life.
I fall in the latter category. I use my phone for business, so I talk hours a day on it. I use it for navigation in the car. I watch probably 2+ hours a day of video on it in the evenings. I listen to music while I'm out and about. I play games when waiting around (like in the doctor's office).
I do all of this usually with wireless bluetooth.
So, I'm happy if I get 6-8 hours out of a full charge, which is rare. However, it's not because the Epic has a crappy battery or sucks juice... It's because I use it to it's full capability throughout the day, every day.
That said, muyoso's point is spot-on when it comes to comparing battery hog/waif in terms of ROMs and kernels. The only thing that matters is non-use. A setup should be very stingy and sip electrons when nothing's happening. Under interactive use, there's little to nothing a dev can do to squeeze more life out of 1500mAh than, well, 1500 mAh.
I've been running Syndicate 1.2 for 24 hours now, and I can say that when the phone is idled, it's far more stingy with power than the stock ROM. The latter drank milliwatts like it was weightlifting when it was asleep and nothing was going on. Syndicate seems to barely be breathing at all when the phone's asleep -- just how you want it to be.
dwallersv said:
First, there's just way, way, WAY too much pissing and carping that goes on around here between people about their different usage models.
We each use the phone the way we use it. If you hardly turn it on, you'll get awesome battery life. If you use it like a combination phone/PSP/iPod/Nuvi all day long, you'll get horrible battery life.
I fall in the latter category. I use my phone for business, so I talk hours a day on it. I use it for navigation in the car. I watch probably 2+ hours a day of video on it in the evenings. I listen to music while I'm out and about. I play games when waiting around (like in the doctor's office).
I do all of this usually with wireless bluetooth.
So, I'm happy if I get 6-8 hours out of a full charge, which is rare. However, it's not because the Epic has a crappy battery or sucks juice... It's because I use it to it's full capability throughout the day, every day.
That said, muyoso's point is spot-on when it comes to comparing battery hog/waif in terms of ROMs and kernels. The only thing that matters is non-use. A setup should be very stingy and sip electrons when nothing's happening. Under interactive use, there's little to nothing a dev can do to squeeze more life out of 1500mAh than, well, 15 mAh.
I've been running Syndicate 1.2 for 24 hours now, and I can say that when the phone is idled, it's far more stingy with power than the stock ROM. The latter drank milliwatts like it was weightlifting when it was asleep and nothing was going on. Syndicate seems to barely be breathing at all when the phone's asleep -- just how you want it to be.
Click to expand...
Click to collapse
Absolutely spot on! And thanks for the plug.
amosher13 said:
i'm curious what most people are getting for % battery loss with screen on. i feel like mine tends to be high across several ROMs and kernels.
Click to expand...
Click to collapse
Because of how an AMOLED screen works power usage will vary greatly depending on brightness setting. So, taking care to adjust the brightness to suit viewing conditions regularly can make a big difference -- or use auto brightness.
I don't think the latter does a very good job, and I don't like it surprise changing/adjusting while I'm using the phone, so in all my anal retentiveness I constant adjust it manually to suit me.
Thank God for the nice notification-bar-finger-slide-brightness feature that Sammy added.
k0nane said:
Absolutely spot on! And thanks for the plug.
Click to expand...
Click to collapse
I forgot to mention that I also surf the web an hour or two a day too
It's a great ROM, once I learned not to try and be too lazy about restoring my previous setup
Hey, if you guys can engineer a fix to the incredibly stupid non-mixing, single-audio-source idiocy of Android's audio subsytem, I'll give you a very generous donation. I love almost everything about my Epic and Android, and haven't looked back wistfully to my WM Omnia II until I noticed this... Can't believe Google botched something as tecnically simple and unchallenging as this.
I mean, really... there's public domain, GPL code out there that could have just been plopped in to make a barely decent sound subsytem. It's a crime that my music mutes every time I get a notification about an email, SMS, etc.
The only solution is to disable sound notifications, which I've done. I can easily live with that, but I shouldn't have to.
One thing the ACS team might consider is adding an option to disable sound notifications when certain apps are running, like media apps playing music or video.
I think for most, if you just root the phone, disable the DRM, and run a program like Setcpu it will make a dramatic difference. It did for me. I just set SetCPU to throttle down when the screen is off.
dwallersv said:
One thing the ACS team might consider is adding an option to disable sound notifications when certain apps are running, like media apps playing music or video.
Click to expand...
Click to collapse
We'll have a look at it, thanks for the suggestion!
Can any one confirm if this is good battery life?
Sent from my SPH-D700 using XDA App
mikel719 said:
Can any one confirm if this is good battery life?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
can u tell us approximately how long ur display was on since it does say 72%..

Battery life

Has anyone seen awesome battery life with this thing or is it just me!? It's been off the charger for 4h20m and the battery is as 87%. wifi off, gps off, bluetooth off, sync ON. just text messaging all day, maybe 20 texts total (slow day today). little bit of facebook, little bit of email, thats about it, so i didn't really do much with the battery but even so with this kind of use my evo would probably be down to around 70%.
battery indicator pro says the display is responsible for 64% of the power drain and cell standby is only 12%, whereas my evo usually had around 50% cell standby and display was only like 8%. was the evo just really bad at holding a signal or what? my display is at middle brightness, if you use the power control widget.
can anyone else tell me how much % their display uses? and what their battery life is like?
after typing this post it's only dropped 1%. word.
Personally, I don't have much of a basis for comparison. I just got my Shift on an upgrade from an aging Samsung feature phone. I've heard all about the horrid battery life on the Evo. My brother has one and can't get a full day of use.
I was out with a real estate agent looking at houses for 6 hours yesterday. We used the GPS a little bit. I was checking NFL playoff scores every hour or so. I was also texting/emailing lightly. 4G was off. By the evening when I put it back on the charger it was still in the green. I didn't look at the power meter specifics... wish I did.
And today I'm just about to leave the office right now. I'm at 8 hrs, 59 min since unplugged with 6/10 green battery bars. (Hey... how do I get the exact percentage? Thanks!)
Display is 62% of my usage (It's set to Auto-brightness). Android system is next at 20%... Light email/texting use all day long at work. Played games for 30 minutes during lunch. Downloaded some new apps (using 4G). Wi-Fi and GPS off all day.
Overall it's a little better than I expected. But I know I haven't really had a heavy day of use yet.
Battery Indicator Pro is a great app that runs in your menubar and displays the percentage for you.
glad we're on the same page with the display, though
I almostmreturned the phone. My cycles were:
1st 8+ hours
2nd 4 hours
3rd 2 hours
Did a factory reset on the phone and it has started to turn around.
4th 9:40 min and at 30% when on the charger
5th 10:46 and still going. Battery is at 30%
I've recharged twice since I got it on Saturday. This seems great, coming from the sprint hero
Exactly. My hero sucked. I used my phone lightly and had it without a charge for over 24 hours. Did some playing around setting it up and then some light texting, emailing, and 4g usage. Then turned off 4g. Amazing.
vrundmc said:
Exactly. My hero sucked. I used my phone lightly and had it without a charge for over 24 hours. Did some playing around setting it up and then some light texting, emailing, and 4g usage. Then turned off 4g. Amazing.
Click to expand...
Click to collapse
This isn't your dream phone, it's the one after that. You gotta take it out and play with it more!
I've had to charge it twice a day since the sixth, battery life has been terrible.
I have all the stuff disabled, it just seems to drain even when nothing is running.
I did have an issue with terrible signal on the first day, once I did ##DATA# it fixed it, but my battery life is sucking it up badly.
Sent from my bathroom, with toilet paper.
Just got my wife a shift earlier today and ran it down from the half life that came with the battery in about...6 hours. That was with near constant use, the screen on max, wifi, and sync. Plus GPS on for awhile too. Compared to my epic which with similar use can go...maybe 6 hours from full? It depends. I'll be comparing her battery usage to mine over time and I'll post after she gets some use from a full charge. Under normal usage I can get up to 28 hours from my Epic so people reporting horrible battery life must be doing something wrong or have a defective battery. I fully expect her to get a couple days life out of each of her charges though she'll probably throw it on the charger every night.
anyone have an explanation of why the screen is the largest amount of usage under battery stats? yesterday was an average day for me and the display was something like 50%. on my Evo cell standby was always the highest and the display was down around 8 or 10%
edit: this morning the phone has been unplugged for an hour and a half and cell standby is 50% and the display is 11%... *scratches head*
I just switched to Sprint a couple days ago and got an EVO 4G; I am really unhappy with the battery life and though I got them to give me an extended battery for free it still seems like it's dying very quickly. I am a heavy data user and it's driving me crazy; does anyone have any experience going from the EVO 4G to the Shift and, if so, what are your thoughts, particularly in regards to battery life? Is it worth the loss of size and cameras?
i went from the evo to the shift (30 day swap deal) and i haven't even looked back. the battery life is STELLAR as far as i'm concerned. the evo sucked down power like nobody's business. i'm sure if you got an extended battery for the shift it would last you 2 days at least.
All I gotta say is my extended battery experience is amazing. I get about 36 hours out of my evo. Yea it looks a little fugly now but fck it I can abuse it as much as I want too with battery to spare.
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Sent from my Evo while i should be working
I just got the extended battery and haven't charged it overnight yet, but so fast I am very concerned that it is not living up to expectations. However I won't make any quick judgments until I've seen how it does over a couple days.
My Hero got better battery life.
Sent from my PG06100 using XDA App
Typical use for me is pulling the phone off the charger at 5am, light to moderate use throughout the day (texting, facebook/twitter, apps updating ~2-4 hours, etc) and then putting back on the charger at 9pm.
I upgraded from the Hero. The Hero was rooted and running AOSP w/ modified kernel and collin's battery tweak. Battery life was impressive, but performance was an issue. I could routinely get 30+ hours battery life with the type of use listed above (battery was usually 50% or more when I'd put it back on the charger).
With the Shift, battery life is surprisingly good. For some reason I lose ~10% within the first hour, but after that, it seems to settle down and by the end of the day I'm still at ~30% (with the type of use listed above).
Based on what was possible with the custom ROM's and kernel tweaks for the Hero, I'm excited to see what the community can do with the Shift once we get root.
That first 10% drop seems normal for the new HTC phones. I know the Evo does the same thing. Just the way they're charging the batteries
Sent from my HTC Evo Shift 4G using Tapatalk
bcellis said:
With the Shift, battery life is surprisingly good. For some reason I lose ~10% within the first hour, but after that, it seems to settle down and by the end of the day I'm still at ~30% (with the type of use listed above).
Based on what was possible with the custom ROM's and kernel tweaks for the Hero, I'm excited to see what the community can do with the Shift once we get root.
Click to expand...
Click to collapse
edgemaster191 said:
That first 10% drop seems normal for the new HTC phones. I know the Evo does the same thing. Just the way they're charging the batteries
Sent from my HTC Evo Shift 4G using Tapatalk
Click to expand...
Click to collapse
I found this article helpful in understanding the ~10% dropoff when first off the charger.
At what setting do you all have your screen brightness set? Do you use the auto-brightness option. I find consistently that the overwhelming majority of battery use (according to that screen in the settings) is from the display.
dylansylvester said:
At what setting do you all have your screen brightness set? Do you use the auto-brightness option. I find consistently that the overwhelming majority of battery use (according to that screen in the settings) is from the display.
Click to expand...
Click to collapse
I have mine set at 20% and it still looks bright to me.

ATT - battery just isn't cutting it

No matter what I do the battery will not last me a full day. A full day for me is about 18 hours. I use my phone almost none at all while at work and I use juice defender to keep data and wifi off while I am not using the phone. I would say 80% of my day is wifi and only a little is LTE. I monitor my task usage and the only thing that ever shows up is screen...there are other apps but very little usage. I use auto brightness. Could that be it? Unless JD doesn't work well with these phones, I just can't figure out what it is. Unless of course its just normal...
Phone has to last me 18 hours with moderate usage. If it doesn't, I need another phone.
Post some screenies?
Sent from my SAMSUNG-SGH-I747 using xda premium
The big killer of battery life is when LTE doesn't have a good signal (inside a large building). Connecting and reconnecting to the tower is what always kills my battery. I suggest you look and try those "turn of LTE" hacks around. My battery lasts me about 20 hours with moderate usage (but I am always in a great LTE location), and about 12 hours with heavy usage.
As long as your signal (wi-fi, LTE, HSPA, whatever it may be) remains good, you should have amazing battery life. I often take my phone out for 16-17 hours between charges and have ended the day with anywhere from 60% to 25% of the battery life, ranging from light to moderate usage.
For me, an average day is on wi-fi for at least 90% of the time, but a recent trip I had to Chicago (LTE all day, no wi-fi) showed similar results - and that was with some more moderate use while traveling! Not sure if there is much you can do about your signal, but I know my last phone (Captivate) got worse signal in my pocket vs. on my desk. SIII doesn't seem to be having as much of an issue, but still something to consider if necessary in your case.
I live in Dallas and have great LTE.
I just copped the sgs3 today and have not put it down my batt isn't that bad. 8 hours st8 on it lol
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OP, one suggestion I have...
What makes this phone a winner over my One X is the removable battery. I believe you can get a second stock battery for about $30, and I saw a charger and battery for around $40 earlier. Maybe you should pick up a spare? I realize it's not ideal, but it's an option.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
I'm in Vegas, lte rocks and I use my phone constantly. I can't get 4 hours so I just ordered an Anker 2200mAh.
I'm not on wifi but the Lte network in Vegas flies too which is just an additional $$. I've just got juice defender ultimate. I know a lot of people swear by it but I can do it better and faster myself. I'm a heavy user and if we could just turn off the Lte u and then maybe slow down the processor., I would be fine. It's ridiculous we still need additional batteries.
Whenever I leave my house I do the following in settings.
Power Savings I now just leave on.
I either completely Restrict background data or you can do by application in Data usage and go into Accounts and Sync and turn most off. Anything not Google is off and under Google I just sync my calendar, address and Gmail.
Now if we can turn off Lte, I will be fine I think.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
tuffluck said:
No matter what I do the battery will not last me a full day. A full day for me is about 18 hours. I use my phone almost none at all while at work and I use juice defender to keep data and wifi off while I am not using the phone. I would say 80% of my day is wifi and only a little is LTE. I monitor my task usage and the only thing that ever shows up is screen...there are other apps but very little usage. I use auto brightness. Could that be it? Unless JD doesn't work well with these phones, I just can't figure out what it is. Unless of course its just normal...
Phone has to last me 18 hours with moderate usage. If it doesn't, I need another phone.
Click to expand...
Click to collapse
I'm pretty happy with my battery...
Stock AT&T SGS3 rocking KT747
Once I stopped useing the XDA dev app that was hitting my CPU at a constant 30% I have been getting great battery.
Screen brightness on 100% as well.
Yup
Just put it on the charger as I took the screenshot.
Sent from my AOKP'd SAMSUNG-SGH-I747 using Tapatalk 2
I was running rom that was supposed to be stock but debloated and I installed the cpu1 sleep apk and I got horrible battery life. 5 hours and I was completely dead. I could not see any partial wakelocks. I was about ready to box up the phone and ship it back to Amazon. I flashed back the complete stock rom and I got great battery life. 12 hours, 3 phone calls, 3 push mail accounts, yahoo checks every 15 minutes, 1 hour streaming and the Windows Weekly podcast and I still had 65% left. I was moving so I didn't get a chance to browse or do work crap on it.
Hell with it, I'm staying stock till CM9/10 gets most of the bugs worked out.
Artimus009 said:
I'm pretty happy with my battery...
Stock AT&T SGS3 rocking KT747
Click to expand...
Click to collapse
Mine is about the same, but that isn't good for me. I am 7am-3am daily. There is no way your battery is making it 20 hours, just like mine.
How do you take a screenshot?
Swype with your whole hand from right to left
Sent from my SAMSUNG-SGH-I747 using xda premium
I live/work just outside of an LTE area, and lately have been using my phone pretty light due to not being able to use it at work other than when I'm on lunch. I get almost no signal in my entire building, so 75% of the day I turn airplane on so my battery doesn't get raped.
So for me and my use recently, the battery has been doing good enough for me.
the standby thing raping my battery is weird,same thing with maps even though i never use it... but i guess both are common. Chrome use was at 3% and i forgot to check screen on time.
On the current charge I'm siting at 47% at almost 24 hours, about 1hr 15 mins of screen on time. 30 mins of voice, 10 of chrome...but i accidently unplugged the phone right before i went to sleep last night instead of starting this morning, and i just took a nap so again there is a lot of sleep time
Take all that for what it's worth, which I have no idea lol
tuffluck said:
How do you take a screenshot?
Click to expand...
Click to collapse
Actually its more of a judo chop on the left side and then slide to the right while maintaining constant contact with the screen.... Of course the easy easy way is to just hold home+power for 2 seconds
Sent from my Sprint GS3
Bowsa2511 said:
Swype with your whole hand from right to left
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Thanks but holy **** that sucks! Being 6'6" with big hands prolly doesn't help. Here goes..
gedster314 said:
I was running rom that was supposed to be stock but debloated and I installed the cpu1 sleep apk and I got horrible battery life. 5 hours and I was completely dead. I could not see any partial wakelocks. I was about ready to box up the phone and ship it back to Amazon. I flashed back the complete stock rom and I got great battery life. 12 hours, 3 phone calls, 3 push mail accounts, yahoo checks every 15 minutes, 1 hour streaming and the Windows Weekly podcast and I still had 65% left. I was moving so I didn't get a chance to browse or do work crap on it.
Hell with it, I'm staying stock till CM9/10 gets most of the bugs worked out.
Click to expand...
Click to collapse
I had the same issue, then discovered that going through a charge cycle fixes the issue. I got only 5.5 hours of use off my first charge (80% of the time on standby), but things improved enormously after recharging it to some extent, then unplugging it. See my post http://forum.xda-developers.com/showpost.php?p=28742643&postcount=297
I've had my phone unplugged for an hour now after the last partial charge, and it's actually gone from 48% then to 51% now, as the battery is still recalibrating.
jdhommert said:
the standby thing raping my battery is weird,same thing with maps even though i never use it... but i guess both are common.
Click to expand...
Click to collapse
The cell standby reading is a bug in the software, it is reading something like 10 times higher than it is supposed to.

Advice on Battery

Hello All,
I'm in need of advice if this is down to battery calibration or I have a faulty battery.
I got a replacement Nexus 4 3 days ago and I have been using it as normal. But I have noticed something strange going on with it.
I charged my phone to 100% and put my phone into airplane mode overnight, as I did with my Galaxy Nexus (It saves battery and I have a house phone for emergencies if somebody wants to contact me). I wake up the next morning around 9 hours later, I lose 1% battery which is normal, but when I use the phone for, say, 20 seconds, the battery instantly drains down to 95%. When I turn the screen off, and leave it until I get into work. I get into work 30 minutes later, turn the screen on and use it for a further 40-50 seconds, the battery then goes down to 92%, and the same thing goes throughout the day. I'm currently at 77% which only 12mins screen on time.
Would this be down to calibration? I haven't actually calibrated the battery and I rooted and flashed a custom ROM on the first day.
I had similar issue on my old, broken Nexus 4 so its not a coincidence.
Any help is appreciated.
-N
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
OverTheBelow said:
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
Click to expand...
Click to collapse
Thanks for this. I'll check it out.
Reminds me about HTC Sensation. It behaved so strangely with the battery readings. Jumped many percentages at once, or stayed at 100% for a while. Also after rebooting, the reading might have been quite different each reboot.
I truly, deeply, did NOT like it. It was horrible to keep track of the real juice level the battery had.
So I wonder if anyone else is seeing this behavior?
weird im getting 2 days usage with average use im really happy with the phone and battery
Fihlvein said:
Reminds me about HTC Sensation. It behaved so strangely with the battery readings. Jumped many percentages at once, or stayed at 100% for a while. Also after rebooting, the reading might have been quite different each reboot.
I truly, deeply, did NOT like it. It was horrible to keep track of the real juice level the battery had.
So I wonder if anyone else is seeing this behavior?
Click to expand...
Click to collapse
Same with me when I had a sensation. It would also randomly turn off.
Sent from my Nexus 7 using xda premium
Nitroz said:
Hello All,
I'm in need of advice if this is down to battery calibration or I have a faulty battery.
I got a replacement Nexus 4 3 days ago and I have been using it as normal. But I have noticed something strange going on with it.
I charged my phone to 100% and put my phone into airplane mode overnight, as I did with my Galaxy Nexus (It saves battery and I have a house phone for emergencies if somebody wants to contact me). I wake up the next morning around 9 hours later, I lose 1% battery which is normal, but when I use the phone for, say, 20 seconds, the battery instantly drains down to 95%. When I turn the screen off, and leave it until I get into work. I get into work 30 minutes later, turn the screen on and use it for a further 40-50 seconds, the battery then goes down to 92%, and the same thing goes throughout the day. I'm currently at 77% which only 12mins screen on time.
Would this be down to calibration? I haven't actually calibrated the battery and I rooted and flashed a custom ROM on the first day.
I had similar issue on my old, broken Nexus 4 so its not a coincidence.
Any help is appreciated.
-N
Click to expand...
Click to collapse
I just thought its normal, for the first couple cycles, and since I flash a rom quite often was hard to pinpoint any of my battery drain problems, eventually though I found that my battery drain issues, were from the CPU not switching back to the 384mhz slot properly, set my min cpu speed with voltage control and now my drain issues are fixed, and I dont have those haywire readings.
OverTheBelow said:
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
Click to expand...
Click to collapse
Calibrating the battery with that app does nothing. The reason you see the battery graph go up without charging after usage is because the graph is more of an "estimate". If you are using it extremely heavily for a long period of time it will give an "estimate" of where it is and then when you stop using it, it will realize it is no longer under load and appear to "recharge".
Sent from my Nexus 4 using Tapatalk 2
maniAK- said:
weird im getting 2 days usage with average use im really happy with the phone and battery
Click to expand...
Click to collapse
Is your phone in airplane mode?
Sent from my Nexus 4 using xda premium
Locksmith81 said:
Is your phone in airplane mode?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
haha nope only have it in 3G if ii used 2G and juicedefender i could probably get 2.5 days out of it then, all i did was 5 complete charges and discharges when i got the phone and only use wall charger not USB charge
How many hours do you end up getting out of it before it dies? And what settings do you get out of that?
I don't pay attention to my battery every few minutes, but look at what I get out of a whole day. Depending on usage, I get 2% to 8% drain per hour. On average, it's closer to 6%. Hope that helps.
The day I calibrated my battery (the second day after I bought the Nexus 4 last week):
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haha, took another half an hour after that of the phone just idling with screen on full brightness till it finally shut off.
OverTheBelow said:
The day I calibrated my battery (the second day after I bought the Nexus 4 last week):
haha, took another half an hour after that of the phone just idling with screen on full brightness till it finally shut off.
Click to expand...
Click to collapse
How do you get it down to 1%? Mine always shuts off when it's about 3% and doesn't let me keep it on.
Just power it back on after shutdown. I get quite about more juice out of it.
BTW, noticed that it uses far less power over the weekend, when at home and constantly on WiFi. I have a feeling the signal amplifier is not very efficient.
Sent from my Nexus 4 using xda app-developers app

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