Battery Power! - Epic 4G General

I use an external battery charger and switch out between two batteries. I rarely ever use the USB to charge it. I always get 18-26 hours of use before I switch out. 18 hours is after all day in the car with the GPS going.
Anyways check this out...
One hour and I'm still at 100% I had to share that. When ever I use the USB charger, it drops to 97% within a few minutes. : ) I had just gotten off the phone with my wife. A 20 minute call.
I recommend a second batter to everyone. Way better charge externally.
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I would have used a screen shot but I wanted to grab it before it dropped.

a454nova said:
I use an external battery charger and switch out between two batteries. I rarely ever use the USB to charge it. I always get 18-26 hours of use before I switch out. 18 hours is after all day in the car with the GPS going.
Anyways check this out...
One hour and I'm still at 100% I had to share that. When ever I use the USB charger, it drops to 97% within a few minutes. : ) I had just gotten off the phone with my wife. A 20 minute call.
I recommend a second batter to everyone. Way better charge externally.
View attachment 436696
View attachment 436697
I would have used a screen shot but I wanted to grab it before it dropped.
Click to expand...
Click to collapse
I can get 18 hours too, if I don't touch it ONCE all day. Too bad that's not how a phone is usually used.

J3ff said:
I can get 18 hours too, if I don't touch it ONCE all day. Too bad that's not how a phone is usually used.
Click to expand...
Click to collapse
Then you have your phone set up inefficiently. If I didn't touch my phone, it would last for about 4 days.

muyoso said:
Then you have your phone set up inefficiently. If I didn't touch my phone, it would last for about 4 days.
Click to expand...
Click to collapse
Well how do you have your phone set up? I just charged to 100% and lost about 20% in under 2 hours. Trying to calibrate battery since I just changed ROM's even though that never seemed to help me before. No matter what ROM/KERNAL I use, my battery seems to be the same.. (About 10 hours if even that with medium usage)

sryans2004 said:
Well how do you have your phone set up? I just charged to 100% and lost about 20% in under 2 hours. Trying to calibrate battery since I just changed ROM's even though that never seemed to help me before. No matter what ROM/KERNAL I use, my battery seems to be the same.. (About 10 hours if even that with medium usage)
Click to expand...
Click to collapse
I set up my phone to lose as little battery life as possible when I am not using it. I have it set to underclock the CPU when the screen is off. I have juicedefender turn off the wifi and data when the screen is off, with a schedule set to 5 mins every 2 hours so that I can receive emails. I have autostarts disable the DRM services upon reboot. I have tasker auto toggle the airplane mode upon reboot. I run Pheonix 1.43 kernel because I get the best battery life with it. If I leave my phone sitting for an hour without using it, it loses under 1% of battery life. This allows me to send 50 texts a day and take about 30 minutes of phone calls and play about an hour of angry birds and check a few emails and browse a few websites and still get 18 hours of battery life.

muyoso said:
I set up my phone to lose as little battery life as possible when I am not using it. I have it set to underclock the CPU when the screen is off. I have juicedefender turn off the wifi and data when the screen is off, with a schedule set to 5 mins every 2 hours so that I can receive emails. I have autostarts disable the DRM services upon reboot. I have tasker auto toggle the airplane mode upon reboot. I run Pheonix 1.43 kernel because I get the best battery life with it. If I leave my phone sitting for an hour without using it, it loses under 1% of battery life. This allows me to send 50 texts a day and take about 30 minutes of phone calls and play about an hour of angry birds and check a few emails and browse a few websites and still get 18 hours of battery life.
Click to expand...
Click to collapse
Tried Juicedefender & didn't seem to improve anything, also use autostart to disable DRM + unnecessary apps from starting up, I tried the airplane mode trick & used phoenix kernels up until yesterday. I even stopped everything from syncing such as Facebook & Google accounts (manually updated) I even disabled background data & didn't seem to improve battery life.. I must have a bad battery?
I got my EVO going 20+ hours when I had it with a few tricks, which I cant seem to do with my EPIC (not saying evo is better or anything so plz dont take it the wrong way) just trying to figure out what I can do to get my EPIC battery life better.

Why don't people just get the 2 battery on ebay for $10 and call it a day. That's what I did. I no longer worry about battery life, cause 3 is more than enough.

sryans2004 said:
Tried Juicedefender & didn't seem to improve anything, also use autostart to disable DRM + unnecessary apps from starting up, I tried the airplane mode trick & used phoenix kernels up until yesterday. I even stopped everything from syncing such as Facebook & Google accounts (manually updated) I even disabled background data & didn't seem to improve battery life.. I must have a bad battery?
I got my EVO going 20+ hours when I had it with a few tricks, which I cant seem to do with my EPIC (not saying evo is better or anything so plz dont take it the wrong way) just trying to figure out what I can do to get my EPIC battery life better.
Click to expand...
Click to collapse
Really depends on your juicedefender settings. If you have it checking data every 5 minutes or choose not to turn data off with the scree, it wont do anything for you. If you set it up like I did, it will double your battery life.

shook187 said:
Why don't people just get the 2 battery on ebay for $10 and call it a day. That's what I did. I no longer worry about battery life, cause 3 is more than enough.
Click to expand...
Click to collapse
This doesn't really have to be said but:
1. Swapping batteries is annoying.
2. Some people are too busy during the day to sit there and worry about it.

J3ff said:
This doesn't really have to be said but:
1. Swapping batteries is annoying.
2. Some people are too busy during the day to sit there and worry about it.
Click to expand...
Click to collapse
complaining on a forum about battery life is annoying but they still find time to do it.

shook187 said:
complaining on a forum about battery life is annoying but they still find time to do it.
Click to expand...
Click to collapse
Well here is how I think of it. I spent $250 on this phone + the monthly bill. Now why should I have to go out and buy an extra battery in order for me not to worry about my phone dieing when I am out.
My fiancée has a 1cent phone and always makes fun of me because I have a $250 phone that cant even last a whole day, and hers last 2+ days without even charging.
My point is I should not have to go out and spend more money when I spent as much as I did on the phone itself. I am not complaining about battery life, i am trying to get tips on how to help improve it.

sryans2004 said:
Well here is how I think of it. I spent $250 on this phone + the monthly bill. Now why should I have to go out and buy an extra battery in order for me not to worry about my phone dieing when I am out.
My fiancée has a 1cent phone and always makes fun of me because I have a $250 phone that cant even last a whole day, and hers last 2+ days without even charging.
My point is I should not have to go out and spend more money when I spent as much as I did on the phone itself. I am not complaining about battery life, i am trying to get tips on how to help improve it.
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Click to collapse
Im sure her phone doesn't have a 4" display a hummingbird processor. Its doesn't run android operating system or runs on 4g. One should know all that comes with a price. Price being battery life and $250 ;-)

shook187 said:
complaining on a forum about battery life is annoying but they still find time to do it.
Click to expand...
Click to collapse
Maybe if I was here everyday complaining about it, 365 days a year then I'd agree with you.

One thing to think about also is that not all batteries are created equally. I have 3 Samsung OEM batteries and one of the Ebay knock offs. One of the Samsung batteries gets me close to 30 hours with moderate to heavy use on my current setup. The second one usually gets about 25 hours. The third gets me around 18 hours and I'm lucky if it doesn't lose 10% of its power sitting on my nightstand before I put it in the phone. The Ebay knockoff battery is good for 20 hours most of the time.

shook187 said:
Im sure her phone doesn't have a 4" display a hummingbird processor. Its doesn't run android operating system or runs on 4g. One should know all that comes with a price. Price being battery life and $250 ;-)
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Click to collapse
but... what I was saying anyways, I got my EVO to run 20 + hours with some tweaks (no extra battery needed) which has bigger display and almost same processor, also runs android operating system. I'm not going to mention 4G because I don't even get 3G in my area let alone 4G.
I am just trying to figure out why a lot of people on here can do certain tweaks and get their battery life to be excellent while mine wont even last a day. I'm trying to figure out other tweaks I can do or if I just have a bad battery (not complaining)

J3ff said:
This doesn't really have to be said but:
1. Swapping batteries is annoying.
2. Some people are too busy during the day to sit there and worry about it.
Click to expand...
Click to collapse
1. Ya right!
2. ah, Ya right
3. It takes 20 seconds, less if you don't have a case around it
4. It takes about the same amount of thought and effort to plug in the USB
5. Charges it way better.
I've never sit there and worry, hell its made my life faster. I'm always doing something and get caught with a dead phone.
sryans2004 said:
Well here is how I think of it. I spent $250 on this phone + the monthly bill. Now why should I have to go out and buy an extra battery in order for me not to worry about my phone dieing when I am out.
My fiancée has a 1cent phone and always makes fun of me because I have a $250 phone that cant even last a whole day, and hers last 2+ days without even charging.
My point is I should not have to go out and spend more money when I spent as much as I did on the phone itself. I am not complaining about battery life, i am trying to get tips on how to help improve it.
Click to expand...
Click to collapse
You probably live life by that motto huh... lol

Related

Terrible Battery Life!

I got my Vibrant a few days ago and as of today i can only get 4-5 hours max out of the whole battery and thats with heavy to moderate use.. does anyone else seem to have this problem.. im gonna return the phone and get a new one but does anyone else seem to have this?
I really dont understand why this is so bad..
4 or 5 hours of heavy use is about all I get. That is if I'm constantly messing with it. E.g. web, email, facebook,ect. However I think this phone has excellent battery life when I'm not constantly playing with it. Wifi definitely drains it quicker. And stupid apps like facebook. I periodically mess with my phone throughout the work day and by the time I get home I usually have about 75% battery remaining. I think that's pretty good.
ElChibo said:
I got my Vibrant a few days ago and as of today i can only get 4-5 hours max out of the whole battery and thats with heavy to moderate use.. does anyone else seem to have this problem.. im gonna return the phone and get a new one but does anyone else seem to have this?
I really dont understand why this is so bad..
Click to expand...
Click to collapse
THE BATTERY IS TERRIBLE. thats why i returned it, and the slow acrolling from screen to screen with stock software
I think you can only expect about 4 hours of awake time use on this phone. I haven't had much trouble with mine, I get about 13-14 hours per charge. But my phone its idle 9-10 hours of the day.
Sent from my SGH-T959
stepinmyworld said:
THE BATTERY IS TERRIBLE. thats why i returned it, and the slow acrolling from screen to screen with stock software
Click to expand...
Click to collapse
Then why are you still in the vibrant forums... move on...
I would think by now people would be use to the type of battery life you get with these types of phones. With heavy usage your not going to last all day just how it is until battery tech catches up to phone tech. I use mine a above moderate usage and some days heavy usage. From when I unplug it at 7:00am the battery is down to about 10 to 15% by the time I leave work at 4:00pm. Thats a lot better than my HD2, Cliq, MT3G and G1.
temperbad said:
Then why are you still in the vibrant forums... move on...
Click to expand...
Click to collapse
I agree 100%. Im seeing a lot of this. One thing I dont see is the "Vibrant Complaint" forum. Can't understand why ppl feel the need to come back in here if they dont like, dont have or feel they need to bash the phone from their experience. Get rid of the phone or keep it and be patient, its that simple... or am I missing something?!?!?
speoples20 said:
I would think by now people would be use to the type of battery life you get with these types of phones. With heavy usage your not going to last all day just how it is until battery tech catches up to phone tech. I use mine a above moderate usage and some days heavy usage. From when I unplug it at 7:00am the battery is down to about 10 to 15% by the time I leave work at 4:00pm. Thats a lot better than my HD2, Cliq, MT3G and G1.
Click to expand...
Click to collapse
Im almost in the same boat, much better battery life then my G1! I can get from 8-8pm with moderate usage and music palying for the last hour. I was experiencing horrible battery life (8-2/3pm) when I was running notifications with Bloo 1.5.apk, auto brightness on, and Advanced task manager running. Now that I have cut the notifications from bloo (got gmail for this anyway), set brightness to manual setting, and got rid of the task manager I am regularly seeing, after bering unplugged since 8(its now 1245) and im @ 85%. Try trimming down the services you have running in the background and by an extra battery or a car charger.
Id like love to try mine out when i get it tomorrow because with
Mytouch Slide, i had Facebook, Gmail and all the usual stuff syncing and it lasted me close to 8-12 hours of Web, texting and just playing around with it throughout the day.
The Nexus One Was the same lasted me some good 10-14 hours a day syncing the usual stuff along with the weather and such. So Id expect the vibrant to be the same, or Else im returning it and thats the end of it. That also goes for lagging issues as well. And most likely get a different android phone or go back to the N1 and Switch Forums....
Have you ever owned a Smartphone before? Thats normal if you are using it heavily.
androidmonkey said:
Have you ever owned a Smartphone before? Thats normal if you are using it heavily.
Click to expand...
Click to collapse
no its not normal.. ive used my MT3G with heavy use gives me at least if not more than 7-8 hours use.. what i dont understand is why the hell it takes so long for my battery to charge.
ElChibo said:
no its not normal.. ive used my MT3G with heavy use gives me at least if not more than 7-8 hours use.. what i dont understand is why the hell it takes so long for my battery to charge.
Click to expand...
Click to collapse
I get 6-8 hours.
I think 5 hours of juice is really good relative to your heavy usage. I always get 15 - 18 hours a day. That's with moderate use. Even playing a game of Armored Strike for an hour. This is the best battery i've had on a phone. I can easily get over a day and a half or even more once I settle down and stop using it so much more than I need to [ because I just got it.... ]
If this is what you consider to be terrible, I don't mind how terrible my battery life at all. I made a few calls, used GPS a few times, always listening to music.. some market downloads, pictures taken. SetCPU at 1000MHZ 100% of the time.
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29% left!
Disable Google Talk. My battery life was excellent (typically all day on full charge with heavy use). I signed into google talk one day and was lucky to get 4hrs before charging was needed. I deselected the auto sign in option and killed it in the running services section. Battery life has gotten so much better 70% after 4.5hrs.
i think the battery life for my vibrant is pretty epic. when i went to cm5.0.8 and cm6 on my g1 i calibrated the battery and thought i was getting really good battery life. then i got the vibrant. i could probably make it two whole days without a charge with how i use my phone (probably moderate-light compared to most on here).
but one thing i do agree with is this phone takes FOREVER to charge.
Hmm.....
Ok.....well I consider myself a moderate-heavy user...
On that note, I actually use my phone for work calls, emails, plus personal calls and emails as well....and i'm an avid gamer and already have many games on my Vibrant and use it to play them regularly.....then there is the fact that I travel for work....a lot, so I constantly using google voice search and maps to find where i need to go (never use the gps though)....I used the internet all the time, especially on WiFi (higher battery drain)....and don't get me started on the movies, music and youtube....plus while at work I have Pandora running from my phone throughout the day....
So how is my battery life? I unplug my phone every morning at 9am, with all that use I don't need to plug it in again till 10-11pm (12-14hrs!!).....by that time of course the battery level is at 5-15%.....But I'm definitely not complaining....
I do however disable the auto-brightness feature....AND turn down my brightness to about 30%....50% brightness cuts about 2 hours off of the battery life....
But a GREAT PHONE!!! Loving my new Galaxy S Vibrant
funeralthirst said:
i think the battery life for my vibrant is pretty epic. when i went to cm5.0.8 and cm6 on my g1 i calibrated the battery and thought i was getting really good battery life. then i got the vibrant. i could probably make it two whole days without a charge with how i use my phone (probably moderate-light compared to most on here).
but one thing i do agree with is this phone takes FOREVER to charge.
Click to expand...
Click to collapse
yeah, i feel the same way. As far as phone taking forever to charge, are you using the usb-computer charger or usb-wall? The usb-computer can be very weak depending on your system.
Charging from pc, i would wake up only to see 65%. That's pretty crazy. On the wall charger, it takes less about 4-5 hours every time.
Anyone loosing like 6 percent in the first 15 minutes after a full charge? 15 minutes ago i was 100% now im at 94....
I get better battery life than i got on my G1.
These are not cell phones... they are tinny laptops that you can press against your face and make phone calls.
This thing has more features than the $1200 gaming PC i built 2 months ago.
I had bad battery life the first day. Turned the phone off late at night and let it charge full. Battery has been wonderful since then.

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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
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 Sucks! Android still way behind in this respect.

My last Android phone was the Desire. (The first one)
It's battery life left alot to be desired in all honesty.
Phone after that was an iPhone 4 which had a far better battery life. Onto pastures new after my iP4 got smashed, I picked up a Samsung Galaxy S II as a replacement.
Had it three days now and I am really not impressed with this things battery life. Unless your camped near a charger it just feels like such a pointless device. What's the point in having all these features if it's going to be dead by lunchtime? Really?
Got hardly any apps installed, have closed down social hub and everything inside it, no notifications or syncing apart from Gmail and contacts. (Whoopy doo!)
I took my phone off the charger around 2pm at 100%.
Now it's showing as 6h 48m usage (doesn't sound right)
Display 44% - 1h 47m use
Internet 13% - CPU total - 19m
Cell Standby 11%
Android System 9% - CPU Total 3m , CPU foreground 1m , Stay awake 4m
Android OS - 8% CPU total 11m
Voice calls - 3% - 2m
Battery now at 48%
So over 50% battery and I have got 19 mins of checking football scores and 2 minutes of calls.
This phone is not worth £500. Not in the slightest, just based on this. What good is a dual core powerhouse if it's going to be dead before you've had a chance to use it?
It's a serious issue that needs looking at, and no , it isn't the Android OS bug. That only accounts for 11 minutes of nearly 7 hrs of being on.
I use to charge my iPhone 4 up about once every 3-4 days, it never seemed to ever die or drain this quickly. You put the phone on the side and goto bed, usually lose about 1% of battery for the entire night.
This just isn't good enough for the price being paid.
From what i've seen here at XDA is that every phone (even the same model) performs differently. My SGS II can sit on my nightstand all night (7-8hrs) and only lose 3-4% battery. I can go through my entire work day of 8hrs with email sync on, sending text, making calls, checking XDA and Twitter, etc and still only use approx. 30% battery.
This is with the stock ROM. With a custom ROM that will improve and I can count using a maximum of 3 fingers the last time I was away from a charging source for more than an hour so i'm content.
You must be the only one I've heard of that only charges their iPhone4 every 3-4 days, everyone that actually use the phone has to charge it at least every day (that I know anyways).
And 19 mins checking fotball scores and 2 calls? Your screen was on for nearly 2 hours so I hope you got to do more than that.
I can usually get a solid 5-6 hours of _active_ use time out of this phone and that's better than any phone I've had before at least. But one must remember batteries are batteries and the one in SGSII only has those 1650mAh to work with, it isn't magic.
And if you're getting much more than 1% battery drain per hour you have a bug or a program eating your battery somewhere.
Oh and if it isn't good enough for you just return it or sell it, it's not like anyone forced you to buy it or like it. I would never tolerate having a phone I didn't like, it would go straight in the bin.
SBS_ said:
You must be the only one I've heard of that only charges their iPhone4 every 3-4 days, everyone that actually use the phone has to charge it at least every day (that I know anyways).
And 19 mins checking fotball scores and 2 calls? Your screen was on for nearly 2 hours so I hope you got to do more than that.
I can usually get a solid 5-6 hours of _active_ use time out of this phone and that's better than any phone I've had before at least. But one must remember batteries are batteries and the one in SGSII only has those 1650mAh to work with, it isn't magic.
And if you're getting much more than 1% battery drain per hour you have a bug or a program eating your battery somewhere.
Oh and if it isn't good enough for you just return it or sell it, it's not like anyone forced you to buy it or like it. I would never tolerate having a phone I didn't like, it would go straight in the bin.
Click to expand...
Click to collapse
Honestly, there isn't much choice is there. It's this thing , or the iPhone 4.
Blackberrys are rubbish, other mainstream phones are all Android based and have battery grievances aswell.
Battery life is such a limiting factor with these modern phones, the old nokia bricks use to last ages. I know they can do alot more, but I figured disabling all of the sync features and what not should atleast improve it a fair bit.
Doesn't seem to make any difference.
Going back to carrying spare batteries again, just for daytime use. lol
Arthur Hucksake said:
Honestly, there isn't much choice is there. It's this thing , or the iPhone 4.
Blackberrys are rubbish, other mainstream phones are all Android based and have battery grievances aswell.
Battery life is such a limiting factor with these modern phones, the old nokia bricks use to last ages. I know they can do alot more, but I figured disabling all of the sync features and what not should atleast improve it a fair bit.
Doesn't seem to make any difference.
Going back to carrying spare batteries again, just for daytime use. lol
Click to expand...
Click to collapse
today my screen has been active for 5 hours on my one year old galaxy s and i still have 29% left on battary. So i aint suffering from same issues as u
I didn't really use it much since i was carrying my BB most of the day yesterday
Complete opposite from OP's observation
I've said it from day 1 that battery life on this is great.
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Arthur Hucksake said:
So over 50% battery and I have got 19 mins of checking football scores and 2 minutes of calls.
Click to expand...
Click to collapse
19 mins of CPU usage doesn't mean you was checking scores for 19 minutes, but it took summarily 19 mins of 100% CPU usage. Plus if I look at display time then I think you was checking these scores for about 1:40 hrs and now you're surprised that it took ~50% of battery. Also I think you have brightness set to high, because display should not drain so much power.
Mine was up to 1 day 6 hours then I had the charge message on screen this was with a few hours of phone calls, maybe 35 texts, watched a bit of a video, web browsing, I am very pleased with the battery so far.
I get at most 15-20 hours out of my battery, limited use.
As many stated before, the phone is almost useless due to the bad battery. I dont know if I can see an entire Mkv 1080p movie in it. Only seen a few CSI 720p mkv videos, and they drain the s**t out of the battery.
Looks like we have to buy the big battery pack thats going to be released soon. Then it wont be so thin, or light though...
Here is a pic of my stats, phone is about to go dead in a couple of hours. That means Ill get about 15 hours out of it today.
First of all, your display was on for 1hr 47min, 13min of scores doesn't cause that....
Second, there are ways to get better battery life out of the phone.
Turn down brightness
Turn off auto sync
Turn off radios if they can't get signal
Dont stream videos/music
But why have a top of the line device if your going to do all that?
I turn my brightness up, I love the sexy giant screen. I auto sync 4 email accounts. I have 7 screens filled with power wasting widgets. I constantly stream pandora and watch espn at work, tvshowstream on lunch and in car. I overclocked also.
Lets say I use my phone to its fullest. All I did was buy some cheap hong kong batterys on ebay for $11 and switch them out as I need them. I can do anything and everything on my phone with confidence I won't run out of power.
corb06 said:
As many stated before, the phone is almost useless due to the bad battery. I dont know if I can see an entire Mkv 1080p movie in it. Only seen a few CSI 720p mkv videos, and they drain the s**t out of the battery.
Looks like we have to buy the big battery pack thats going to be released soon. Then it wont be so thin, or light though...
Here is a pic of my stats, phone is about to go dead in a couple of hours. That means Ill get about 15 hours out of it today.
Click to expand...
Click to collapse
What did you install on your phone? I'm still running full stock
Its not the best battery but it ain't that bad as many others, iphone 4 is good on battery and lasts a day or 2 with some use but ios is nothing like android interface so they carnt be compared that easy, i think there's room for improvement weather its a android update or custom Rom.
corb06 said:
As many stated before, the phone is almost useless due to the bad battery. I dont know if I can see an entire Mkv 1080p movie in it. Only seen a few CSI 720p mkv videos, and they drain the s**t out of the battery
Click to expand...
Click to collapse
:firstworldproblems:
I used to have an iphone 3 and I had to charge that baby every day...
While I would certainly like more standby time... Having an awesome computer in your pocket is way cooler than a dumb phone that's battery lasts four days.
I think this was one of Nokia's major miscalculations... That users wanted better battery life over phone features.
Not going to waste too much time with this, you picked the wrong phone to begin with, Samsung has this goal, to be in every pie. Their products have great reviews, but so research first and find a company that does better, one that actually takes the time to develop the product they primarily specialize in, and who have been around doing it (reliably) for awhile. I.e. Motorola, Htc
Sent from my PC36100 using XDA Premium App
Shadowzerosix said:
Not going to waste too much time with this, you picked the wrong phone to begin with, Samsung has this goal, to be in every pie. Their products have great reviews, but so research first and find a company that does better, one that actually takes the time to develop the product they primarily specialize in, and who have been around doing it (reliably) for awhile. I.e. Motorola, Htc
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
I actually went by reviews, they all point to this phone being the best alternative to the iPhone 4. Comments were generally that battery life was good.
Think their reviews were all based on ten minutes of use.
Arthur Hucksake said:
I actually went by reviews, they all point to this phone being the best alternative to the iPhone 4. Comments were generally that battery life was good.
Think their reviews were all based on ten minutes of use.
Click to expand...
Click to collapse
i've had mine since the fourth of this month and battery life is just as good if not better than the first week. That screenshot was taken earlier today
Shadowzerosix said:
Not going to waste too much time with this, you picked the wrong phone to begin with, Samsung has this goal, to be in every pie. Their products have great reviews, but so research first and find a company that does better, one that actually takes the time to develop the product they primarily specialize in, and who have been around doing it (reliably) for awhile. I.e. Motorola, Htc
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Which samsung phone do you have? I would have to agree with HTC but motorola for smartphone? HAHAHAH
I dont't think 19min of checking football score and 2min of calls will even affect your battery life. 6hours and your battery down by 50%, not sure what you did to your phone. Just watched live football stream for 2 hours, everything else syncing etc, I never off background data, wifi constantly on, lots of widget and now after 19hrs I still left 28%.
If this phone were not good enough for you why don't you return it and exchange back for an iPhone4?
ps: My gf ip4 need to charge every 2 days (with light usage) but when shes playing lot of games and browsing, she will need to charge it at night before going to bed.
If you don't like the phone return it and get something else. That's some free revolutionary advice for you. No need to create another thread for this, you could have just made a new post in one of the others. Now have a good day.

Perfect Phone except for battery

I got my SGSII on Sunday and I am extremely pleased with it. Its like the phone of my dreams in almost every way. It's responsiveness, its camera, its form factor, its screen, everything about it was great. Until I noticed that the battery was being drained kinda fast. I rooted it within a day and tried every ROM available so far but none of them alleviated my battery issue. I've read and tried every solution on these forums but nothing works.
I lose approximately 10 percent of battery every 30 minutes and have gained a maximum battery battery life of 8 and a half hours. Ive Frozen most of sammy's bloatware and have optimized it as much as i can. i disabled fast dormancy everything.... I just dont know what to do.
Did you try restoring original Samsung firmware, factory reset with full wipe, and then doing initial setup prior to getting on wifi?
Try this, don't config any account besides google, don't install any software and certainly don't freeze any apps. Monitor phone for a few hours and then post screenshots of Battery Use app for us to see.
I get about 15+ hrs worth.of battery.
With heavy exchange (push) email and quite a few apps.
My problem is random reboots especially when playing music.
Sent from my GT-I9100 using XDA Premium App
Wait for some days. Battery need to calibrate and take some charge to be fully operational.
See pic, I got better battery life than my x10....
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Give it some time. Battery life improves quite a bit after some discharge cycles. Do a factory reset and reinstall as some have mentioned above.
And remember some apps can cause the OS to misbehave.
That's the reason I sold mine. Battery life was unacceptable. Other than that, perfect phone!!! Still looking at this forum hoping for solution to battery problem. Would definitely buy the device back then.
kreoXDA said:
Did you try restoring original Samsung firmware, factory reset with full wipe, and then doing initial setup prior to getting on wifi?
Try this, don't config any account besides google, don't install any software and certainly don't freeze any apps. Monitor phone for a few hours and then post screenshots of Battery Use app for us to see.
Click to expand...
Click to collapse
Thanks for the advice first thing in the morning ill flash KE7, which is what my phone came with, and report back with screenshots and after a few hours.
Any smartphone battery need at least a good month before reaching the maximum potential.
Just wait a couple of days and use custom kernel with SetCPU.
My ex-Arc did the same, first day battery droped 7% every hour on idle but after a week battery could last 3 days
if u continue in this topic its very better. 1 topic about battery is more better
http://forum.xda-developers.com/showthread.php?t=1070324
For me, it's simply because i'm battering the phone with internet use, and generally playing around with it constantly all day while at work.
I get a full day, sometimes two now, depending on how I use it.
My old HTC Desire used to need charging twice a day, until I got my SGS 2, now the Desire needs a charge once every 3 or 4 days, due to the fact I am playing with my new toy! lol
I'd say battery life will improve as time goes on and usage of the phone goes from all day, to normal smart phone usage
In all seriousness, the SGS two outlasts my Desire easily, which is good enough for me. I struggle to kill the SGS 2 in a day.
If you are losing 10% per half hour, is that with the screen on? If so, that is fairly normal. I find that 5 hours of screen on time is the most you'd normally get. If its in standby mode (screen off) and you are losing that much per half hour then something is wrong.
Those you of who are getting amazing battery life, would love to see a screenshot with more than 5 hours screen on time - just to see if it is possible. 3 or 4 days means nothing if its in standby 99% of the time
blue265 said:
If you are losing 10% per half hour, is that with the screen on? If so, that is fairly normal. I find that 5 hours of screen on time is the most you'd normally get. If its in standby mode (screen off) and you are losing that much per half hour then something is wrong.
Those you of who are getting amazing battery life, would love to see a screenshot with more than 5 hours screen on time - just to see if it is possible. 3 or 4 days means nothing if its in standby 99% of the time
Click to expand...
Click to collapse
Yep, how you use the phone is huge. Screen brightness and many other factors like installed apps and what they are doing can have a major impact on batt life. IMO battery life is almost impossible to compare except your own in static usage after making changes. Even idle batt life is effected by push email, weather, etc. In my own usage I was getting poor battery life to start with (multiple charges per day) or was I? There I was screwing around with the phone constantly. Loading this, uninstalling that, taking browsers for test drives, trying launchers, flashing roms, seeing how different games played, showing other people the phone, and so on. The excitement wore off and I got to normal usage (for me) which since I unplugged 17 hours ago is 18 texts, 7 calls all of which were short, and assorted stuff like doing a search, a little web browsing following the search and so on. I'm at 61% showing on batt and my largest user was screen with 59% and then OS with 11%. So this is pretty obvious, cant make it through the day hammering the phone but no problems with what I think most people would consider light usage. Where I'm going is that I think some people may not realize how much they are using their phones in their wahoo new phone frenzy.
blue265 said:
If you are losing 10% per half hour, is that with the screen on? If so, that is fairly normal. I find that 5 hours of screen on time is the most you'd normally get. If its in standby mode (screen off) and you are losing that much per half hour then something is wrong.
Those you of who are getting amazing battery life, would love to see a screenshot with more than 5 hours screen on time - just to see if it is possible. 3 or 4 days means nothing if its in standby 99% of the time
Click to expand...
Click to collapse
Quoted for truth! With normal daily usage about 12-14 hours off the charger you'll see 5 hours of display at the most. GSMArena has done some tests and in airplane mode playing a video on loop on 50% brightness can last a bit over 8 hours. Once you add in having to maintain a cell signal, wifi, push email, idling for another couple hours, it reduces your possible screen time in favor for those other activities.
The best ways to conserve battery are to make sure you don't have rogue apps that are keeping your phone awake when it should be sleeping. Check your battery graph and actually CLICK on the graph to expand it to check if your "awake" bars line up with your "screen on" bars. If they don't, something is wrong and you have to find out what's causing it to stay awake. If you've been browsing (white) websites on wifi for 5 hours and complain when the phone says low battery... tough. You're using the display, wifi, maintaining a cell signal, as well as viewing sites that strain the SAMOLED display the most - white backgrounds.
Based on my experience, my battery life is actually quite good. After 4 hours of idling and only about 20m of display on (auto brightness) I'm still at 91%. After a day's use with about 1h of screen time and 14 hours off the charger (about my avg workday usage) I end up around 65-75% which I consider not too bad and can definitely go 2 days on my average usage. Basically minimizing the battery draw when the screen is off is key since when the screen is on, nothing can stop it from draining the battery.
http://www.gsmarena.com/htc_sensation_vs_galaxy_sii_vs_optimus_2x-review-608p7.php
blue265 said:
Those you of who are getting amazing battery life, would love to see a screenshot with more than 5 hours screen on time - just to see if it is possible. 3 or 4 days means nothing if its in standby 99% of the time
Click to expand...
Click to collapse
Mine,
From 100% to Full drain (Switch Off). Total usage 1d 19h. At 20% Brightness. On XWKE8. More than 5 or 5½ hours is NOT possible, whatever you do. It's not that I am impressed with it, 5 hours isn't enough, 7-8 hours would be good though
Regards.
Well i left my phone idle for approx. 5hrs and im dwn to 63% but now im noticing a problem that i havent noticed before... my Android OS is now taking up 38% with which is more than Display which only took 21% and the phone was constantly waking up. I have no apps runnin in the background nothing else out of the ordinary.
Anarchist310000 said:
Well i left my phone idle for approx. 5hrs and im dwn to 63% but now im noticing a problem that i havent noticed before... my Android OS is now taking up 38% with which is more than Display which only took 21% and the phone was constantly waking up. I have no apps runnin in the background nothing else out of the ordinary.
Click to expand...
Click to collapse
You must have SOMETHING that is eating up the CPU. If you are out of guesses, do a factory reset with data wipe, restore original firmware (if you flashed a custom rom), do another factory reset, configure only gmail, and then monitor the battery usage. It would be losing at most 2% an hour in standby. For me it was 1% every 2 hours (with absolutely nothing running except google) when I tested. I the slowly added my apps making sure I do not install crap and do not configure osmething to always do some **** I do not want.
I don't understand these "battery life sucks" threads.
I have an Unlocked SG2 with stock ROM. It is not rooted, I have not frozen any apps. I have four exchange accounts syncing on push, social networks up and running and widgets on all of my screens. I text and check e-mail frequently throughout the day and I use the camera here and there.
I always get at least 15 hours out of my battery, if not more. For comparison, I was using an iPhone 4 under the same conditions (with the same accounts syncing) minus any widgets or automatic social updates and I was getting roughly the same battery life.
No, this phone won't last you a week with heavy use, but you should easily get a day out of it and I rarely find myself in a situation when I can't charge it overnight. This phone is on par with all of the best battery life smartphones out there, as far as I'm concerned. Those of you getting horrible battery life should probably look into an exchange or maybe an app you recently downloaded. The only time I got really bad battery life was when I ran a live wallpaper that was pegging my CPU.
greyhulk said:
I don't understand these "battery life sucks" threads.
Click to expand...
Click to collapse
Well you are a lucky man then. But I/We do understand.
greyhulk said:
I have an Unlocked SG2 with stock ROM. It is not rooted, I have not frozen any apps. I have four exchange accounts syncing on push, social networks up and running and widgets on all of my screens. I text and check e-mail frequently throughout the day and I use the camera here and there.
Click to expand...
Click to collapse
It's NOT about Frequent email checking or here and there photo shooting, as you can see we are talking about numbers here.
greyhulk said:
I always get at least 15 hours out of my battery, if not more. For comparison, I was using an iPhone 4 under the same conditions (with the same accounts syncing) minus any widgets or automatic social updates and I was getting roughly the same battery life.
Click to expand...
Click to collapse
If you are happy with 15 hours back up with the stuffs you mentioned you do then I've nothing to say. And AFAIK, iPhone 4 has much better battery back up than GS II, in fact it's the only phone, rather smartphonecool which has the best battery back up atm.
greyhulk said:
No, this phone won't last you a week with heavy use,
Click to expand...
Click to collapse
With Heavy use even a Nokia 1200 will not last a week, so it's outta equation.
Regards.
Anarchist310000 said:
Well i left my phone idle for approx. 5hrs and im dwn to 63% but now im noticing a problem that i havent noticed before... my Android OS is now taking up 38% with which is more than Display which only took 21% and the phone was constantly waking up. I have no apps runnin in the background nothing else out of the ordinary.
Click to expand...
Click to collapse
Before going to sleep do these things,
A- Check if 'Auto Sync' is running, Disable it if it was. Same goes for Background Data, Disable it.
B- Go to Task Manager and see if any Apps are running. Close it if some were.
C- In Task Manager, go to RAM tab, Press Clear Memory, it should close the hidden apps were running. ***DO NOT do this if you have some kind of Scheduler application running, it will NOT work then***
D- Download an app like Auto Task Killer.
E- If possible keep the 'Power Saving Feature' on with your desired settings.
Do these first, if not worked, do a Hard reset. For me, it decreases about 5-6% battery (max) in overnight period of 8-9 hours.
Regards.
ithehappy said:
Well you are a lucky man then. But I/We do understand.
It's NOT about Frequent email checking or here and there photo shooting, as you can see we are talking about numbers here.
If you are happy with 15 hours back up with the stuffs you mentioned you do then I've nothing to say. And AFAIK, iPhone 4 has much better battery back up than GS II, in fact it's the only phone, rather smartphonecool which has the best battery back up atm.
With Heavy use even a Nokia 1200 will not last a week, so it's outta equation.
Regards.
Click to expand...
Click to collapse
I'm not sure what you mean by "battery backup". Are you referring to standby time? Yes, the iphone does better in that department, but that's not typical daily use. Phones are meant to be used, not sit around for days at a time. Iphone can do this because it doesn't truly multitask and no data is syncing. Either you have a faulty device, bad Rom, or your expectations are unrealistic .

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
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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.
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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.

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