Develop Bugs

battery life

anyone else having outstanding battery life with this phone?? I am at 18 percent after 17 hours i honestly can't believe this battery life is this good. amazing.
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btw when i got it yesterday i let the battery run all the way down then charged it all the way back up it at around 1 yesterday central time ran it all the way down and charged it all the way back up around 7 pm and it's still on the same charge. and i have been using the hell out of it (no 4g though)

I only got 7.5 hrs today

I got 12 hours today, HOWEVER, 8 of those hours were with music playing none stop and 1 hour of internet while music was playing. Didn't touch a charger once. My EVO, rooted with godmode and freedom kernal still had to be charged at lunch to last throughtout my 10 hour shift.
I love this phone.

I had a weird issue just now. Battery was at 26 percent. Did a reboot by holding the power button down for 8 seconds or whatever it is. When it booted back up about 30 seconds later i had 10 percent battery. anyone else have this happen?
Sent from my SPH-D710 using XDA App

tinybfk said:
I had a weird issue just now. Battery was at 26 percent. Did a reboot by holding the power button down for 8 seconds or whatever it is. When it booted back up about 30 seconds later i had 10 percent battery. anyone else have this happen?
Sent from my SPH-D710 using XDA App
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I just had the exact same thing happen. I'm wondering if there is a bug with the battery gauge and if our battery life isn't as good as we think it is
Sent from my SPH-D710 using XDA App

Since today was back to work day I decided to test the ET in a "real world usage scenario." All radios were on, including Bluetooth and Moar-Geez. I had sync enabled and hourly, including a push E-mail account. During the "beefy part," of the day, meaning 8am - 3pm, I was using moderate to heavy. During the downtime between 2pm - 5pm, I was using heavily and from 5pm - 8pm, there was moderate usage. So, I came home and right before plugging the phone into the charger I was at 40% battery on 15 hours. I am stoked. It is good. Zen.

You guys should calibrate your battery. Let the phone charge to 100%, run the app, unplug your phone.
This will wipe your battery stats and SHOULD give you a pretty accurate description of where you stand. We did flash a new kernel, and that can take some time for the system to get used to it. That's what I've learned from my Evo anyways.
Sent from my Galaxy-Mother-F***in'-S-2!!!

I have let it die 3 times and life is still crappy nothing like yall are getting
I even hard reset but no improvement
Im close to taking it to sprint

churro7 said:
I have let it die 3 times and life is still crappy nothing like yall are getting
I even hard reset but no improvement
Im close to taking it to sprint
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Click to collapse
Yeah same issue here. Phone been disconnected for 2 1/2 hours and 50 min of screen on time lost 40% battery..almost makes you believe people that are claiming good battery life are full of it.
Sent from my SPH-D710 using XDA App

limeaid said:
I just had the exact same thing happen. I'm wondering if there is a bug with the battery gauge and if our battery life isn't as good as we think it is
Sent from my SPH-D710 using XDA App
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Its a samsung issue. Og epic have had the same problem since it was released. Don't reboot unless you have to. Also churro its your fault you don't have good battery life even on og epic you were always complaining about everything
Sent from my SPH-D700 using XDA App

tinybfk said:
I had a weird issue just now. Battery was at 26 percent. Did a reboot by holding the power button down for 8 seconds or whatever it is. When it booted back up about 30 seconds later i had 10 percent battery. anyone else have this happen?
Sent from my SPH-D710 using XDA App
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I had that as well. I've also found the power save settings such as the screen timeout stick at the lower level after it is recharged.
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Dj21o said:
You guys should calibrate your battery. Let the phone charge to 100%, run the app, unplug your phone.
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Click to collapse
Could you clarify -what app?

boe said:
I had that as well. I've also found the power save settings such as the screen timeout stick at the lower level after it is recharged.
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Could you clarify -what app?
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Click to collapse
Battery Calibration app

brian m said:
Battery Calibration app
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Thanks! I'll give it a try.
Dohh - it requires a root - I'm not ready to go there yet.

How can it be my fault lol
jbadboy2007 said:
Its a samsung issue. Og epic have had the same problem since it was released. Don't reboot unless you have to. Also churro its your fault you don't have good battery life even on og epic you were always complaining about everything
Sent from my SPH-D700 using XDA App
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Click to collapse
Sent from my SPH-D710 using XDA App

tinybfk said:
I had a weird issue just now. Battery was at 26 percent. Did a reboot by holding the power button down for 8 seconds or whatever it is. When it booted back up about 30 seconds later i had 10 percent battery. anyone else have this happen?
Sent from my SPH-D710 using XDA App
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Click to collapse
This happened to me, but it went from about 45% to 20% after I reset. However, it took for ever for it to go down to 19%, 18% and I still had about 17% when I plugged it in around 11p.m. after taking off the charger around 7:30a.m. That was with a little over 3 hours of on screen time. I was surfing the web, about 100 texts, xda, about 10 mintues of vid games. I had skype running in the back ground most of the day. I had Wifi on all day and connected about 90% of the time. I didn't have GPS, 4G, or Bluetooth on. That's pretty damn good. I think the drop must have been a software issue.....?

from 7:30am - 12:48, I'm currently @ 72% from full charge.
Not as good as i hoped it would be.
Could it be from Launcher Pro?
my evo 4g would get to 50% from 7:30-5:30.
I dont have my 4g or bluetooth conected. just 3g data.

Not too good from me. 2h49m screen time only have 20% left ....
Sent from my SPH-D710 using Tapatalk

My battery life has been killer since day 1. Unplugged Saturday night at 8pm and when I woke up on Monday morning I was at 5% left. Over a day of use is amazing compared to my old hero and the evo 3d I test drove for a month.

Amazon?
Out of curiosity, do the people who get astoundingly good battery life have Amazon's app store installed?
On my Evo 4G I used to sometimes get up to 48 hours on a charge. Then it went down considerably and I could never figure out why. Even a new battery didn't work. I uninstalled a bunch of my key background apps like Settings Profiles but they didn't do the trick either.
The Amazon App Store runs poorly at best. Thus I always wondered if it could be the culprit.

Coming from the OG Epic, the ET's battery life is amazing. I haven't yet needed to reboot my phone due to the battery problems I've been hearing about. *knocks on wood*

Sudden Battery Percentage Plummet

What's-up Epic4GT Community... Quick question, my battery will suddenly go from 70% to 20%. It is not always at 70% when it drops, it will happen at various percentages. I have attempted to calibrate/wipe battery stats with no avail. Could it be kernel related? Rom related? Bad battery? Any help with my issue would be much appreciated. Thanx!

wiping battery stats has been proven to do nothing. it does sound like a bad battery to me. have you tried using betterbatterystats and cpu spy to see what the problem is?

Does this happen after your phone reboots or in some other fashion turns off then back on, or while the phone is awake?

Right on patrao thank you for the response... Downloading betterbatterystats to see if I can narrow down the problem.

lickarock said:
Does this happen after your phone reboots or in some other fashion turns off then back on, or while the phone is awake?
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It seems to happen sometimes after a reboot or when simply awakening phone. Usually happens when it hits around 60%... My device will be in sleep mode, then when I go to use it, will notice that the battery has dropped 40%. Havent seen it drop while the phone is awake though.

Had the same issue when I first got mine. I was able to "fix" it by draining completely, wiping battstats, then charging full again. Haven't had the problem since UNLESS I'm using a non-stock battery.
In that case it will do it from time to time. Haven't found resolution for that case yet.
Sent from my SPH-D710 using xda premium

jasone4gt said:
Right on patrao thank you for the response... Downloading betterbatterystats to see if I can narrow down the problem.
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no problem man hope you find it out. if not I would go to sprint and tell them your battery is ridiculous at holding a charge

I have a similar problem! Whenever I do a battery pull, then boot back up, I lose anywhere from 10-60% of my battery. I've gone through two batteries and two phones with the same problem.

ive had similar things happened to me. my battery went from 80% to 40%. at first i was like wtf! then i did a rebbot and battery went back to 80%

klyang88 said:
ive had similar things happened to me. my battery went from 80% to 40%. at first i was like wtf! then i did a rebbot and battery went back to 80%
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Click to collapse
This is the same thing that would happen to me. Also like others have said are you sure your phone isnt rebooting? When this happens go to about phone, status and check the up time. When I first rooted my phone it would reboot all the time without me knowing. Honestly sometimes up to 10 times a day. I flashed it back to stock and re rooted using the latest method and now my phone has rebooted once in about 3 months. I have a feeling the first time I rooted something went wrong somewhere because now my phone is running better than ever and rock solid stable!
---------- Post added at 04:09 PM ---------- Previous post was at 04:04 PM ----------
Another thing I should note is I noticed you are running the fb21 modem. That modem was nothing but pure hell on my battery watching it drain the battery was like watching a minute hand on the clock. I would get maybe 6 hours of moderate use. Switch to the fb15 modem and see if that helps. With fb 15 my battery life has been incredible.

Right on fellas thank you for your responses...

Same problem I had. Issue fixed itself maybe because I let the battery drain. Another fix I found was rebooting restored lost %...

This seems to be an inherent problem in certain Samsung builds. My old OG Epic would do this all the time after a reboot. This one would do it at first... but I have never had the problem on el29. When I tried out fb17 with the fb15 modem it came back. And it was always after a reboot. What was funny is that my battery percentage would climb without being on the charger after a plummet like that. I tend to think it is a kernel issue, with it not grabbing the correct percentage during boot.
Sent from my SPH-D710 using XDA App

I also have this issue. It happens randomly when I restart or do a full power shut down. It is very annoying and doing a battery pull does not bring it back up. Its frustrating having to plug your phone in when you had 60-80% battery life left b4 the shut down
Sent from my SPH-D710 using XDA App

Surely not normal??

Running Liquid 1.3 Rom with Franco Kernel
48% Battery left
1h47min on battery
1h15min screen on time
Brightness is at approx 70%
No wallpaper and therefore black screen
Battery Status says "Good"
Surely this isn't normal?? I've tried various other roms and its the same.

I dunno but I just got this phone today, stock and rooted. My battery dropped from 100% to 90% in about 20 minutes. Not a good sign...

I thought my old HTC Desire HD was bad but this is in a different league. I'm on 39% now!

I get about 14 hours with moderate usage and about 3.5 hours of screen on time before the phone dies.
Try using CPUSpy & BetterBatteryStats app to see if the phone goes to deep sleep when screen is off.
Sent from my Galaxy Nexus using xda premium

Were u using wifi? If not and on a 4g connection the whole time then u should not be surprised by that battery percentage. 2 hours of screen on time with constant 4g is pretty typical.
Sent from my Galaxy Nexus using xda premium

harimj23 said:
I get about 14 hours with moderate usage and about 3.5 hours of screen on time before the phone dies.
Try using CPUSpy & BetterBatteryStats app to see if the phone goes to deep sleep when screen is off.
Sent from my Galaxy Nexus using xda premium
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I wouldn't really say that is good, my previous android phones got double that.

schwiz said:
I dunno but I just got this phone today, stock and rooted. My battery dropped from 100% to 90% in about 20 minutes. Not a good sign...
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You just started using your phone, give the battery a day or two to get into it's "rhythm".
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princepilot said:
Running Liquid 1.3 Rom with Franco Kernel
48% Battery left
1h47min on battery
1h15min screen on time
Brightness is at approx 70%
No wallpaper and therefore black screen
Battery Status says "Good"
Surely this isn't normal?? I've tried various other roms and its the same.
Click to expand...
Click to collapse
That looks about normal. You have a 4.65" display, pumping a lot of juice into it. Turn the brightness down to %50 or less.

Tablet idle? Sleep mode?

As an experiment, I left my tablet on overnight with %100 battery left. Turned wifi off and woke up 9 hours later and it is now at %81. So basically with no usage at all, just left on without connection %19 was used. Is this not sleep mode?
Is this normal? I understand if I left it on with wifi on overnight, sure, %19 sounds decent.
Any ideas?
Sent from my Nexus 7 using xda app-developers app

Not decent. Something is waking up your device. I lose 0% overnight with WiFi off. Maybe just 1-3% with WiFi on

Yikes ok thanks
Sent from my Nexus 7 using xda app-developers app

Brava27 said:
As an experiment, I left my tablet on overnight with %100 battery left. Turned wifi off and woke up 9 hours later and it is now at %81. So basically with no usage at all, just left on without connection %19 was used. Is this not sleep mode?
Is this normal? I understand if I left it on with wifi on overnight, sure, %19 sounds decent.
Any ideas?
Sent from my Nexus 7 using xda app-developers app
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I have the same problem. Started this thread: http://forum.xda-developers.com/showthread.php?t=2394813
This issue is driving me nuts!
Sent from my Nexus 7 using XDA Premium HD app

You folks sure have a different expectation than I do. Every tablet I have owned had to be charged every day or two. Only my Sony ereader would go two weeks between, and that is a CMOS device.
Good luck getting your hundred days between charges. I would just turn the device off.
Sent from my Nexus 7 using xda app-developers app

recreate your experiment by putting the tablet in airplane mode instead of just turning off wifi. see if there's a difference.

Arrived at work at 9 AM. Left my N7 in my carry bag on in sleep mode. 98% when I last saw it. 8 hours 15 minutes late it's at 98%. Damn good!

My n7 is at 130 hours uptime on this charge cycle, with 7 hours screen time (but almost out of battery). You definitely shouldn't expect to have to charge it every 1-2 days if you are mostly idling.

rmm200 said:
You folks sure have a different expectation than I do. Every tablet I have owned had to be charged every day or two. Only my Sony ereader would go two weeks between, and that is a CMOS device.
Good luck getting your hundred days between charges. I would just turn the device off.
Sent from my Nexus 7 using xda app-developers app
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I have used 2 other tablets (Galaxy Tab 10.1, Asus Memo pad) that would drop about 4-5% per day while not in use.
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HKSpeed said:
recreate your experiment by putting the tablet in airplane mode instead of just turning off wifi. see if there's a difference.
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Click to collapse
Tried airplane mode on. Didn't help. Battery life on stand-by was still 1-2% per hour.

froggydoddy said:
I have used 2 other tablets (Galaxy Tab 10.1, Asus Memo pad) that would drop about 4-5% per day while not in use.
---------- Post added at 08:20 PM ---------- Previous post was at 08:19 PM ----------
Tried airplane mode on. Didn't help. Battery life on stand-by was still 1-2% per hour.
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Click to collapse
Are those with the drain "ROOTED"? I unrooted my device and don't see any drain anymore. I also removed HD widgets...
I am not sure if it's the rooting part...

LG G4 battery draining when idle and slow charging

Hey guys i have been facing a problem with battery draining recently and also slow charging. When my phone is Idle i can lose up to 30% overnight(also battery draining fast with light using). I even factory reseted. Nothing fixed. Second Problem is slow charging. I calibrated the battery with an app and used a new charger and it takes 3 hours to charge. Isnt that still a lot time?Before it took like 10 hours from 4% to 100.
In Battery usage when im not using phone there is 51% "phone is idle" and 14% is "Mobile waiting"(cant post pic-new member) Any solutions? Why my battery is draining like crazy when Idle? Thanks in Advance.

Check also the USB cable. I had the same problem of slow charging and since the cable is crimped and not soldered it becomes "inefficient" (but still works) after some time.
About the battery life maybe it's going to die...

ChrisGR23 said:
Hey guys i have been facing a problem with battery draining recently and also slow charging. When my phone is Idle i can lose up to 30% overnight(also battery draining fast with light using). I even factory reseted. Nothing fixed. Second Problem is slow charging. I calibrated the battery with an app and used a new charger and it takes 3 hours to charge. Isnt that still a lot time?Before it took like 10 hours from 4% to 100.
In Battery usage when im not using phone there is 51% "phone is idle" and 14% is "Mobile waiting"(cant post pic-new member) Any solutions? Why my battery is draining like crazy when Idle? Thanks in Advance.
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Click to collapse
id check in battery settings and see whats using it first
your screen should be number 1 sitting anywhere from say 35 40 % or higher
you want your screen percentage as high as possible
which means apps and services arent using as much.
mine sits around 65 % screen usage with android and chrome being next highest on my device which is ok cause im always on chrome.
now for the slow charging try diffrent cables and chargers and check to see if any damage or debris in usb port
all this unles the battery is truly going bad and just cant charge and or hold charge anymore

TheMadScientist420 said:
id check in battery settings and see whats using it first
your screen should be number 1 sitting anywhere from say 35 40 % or higher
you want your screen percentage as high as possible
which means apps and services arent using as much.
mine sits around 65 % screen usage with android and chrome being next highest on my device which is ok cause im always on chrome.
now for the slow charging try diffrent cables and chargers and check to see if any damage or debris in usb port
all this unles the battery is truly going bad and just cant charge and or hold charge anymore
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Click to collapse
As i said when my phone is dle, 51% of battery is taken from the "phone idle" and 14% from "cell standby" Anything you think can cause that?

ChrisGR23 said:
As i said when my phone is dle, 51% of battery is taken from the "phone idle" and 14% from "cell standby" Anything you think can cause that?
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Click to collapse
Standby is time without signal if im not mistaken.
Next would be like trying wakelock detector or better batter stats to check ure wake locks cause sound like phones not going to sleep at all

TheMadScientist420 said:
Standby is time without signal if im not mistaken.
Next would be like trying wakelock detector or better batter stats to check ure wake locks cause sound like phones not going to sleep at all
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Click to collapse
My phone is not rooted tho, any apps i can use? i already used gsam monitor but it doesnt say anything at all. 51% phone idle is so much. in the night i can lose up to 35%!

ChrisGR23 said:
My phone is not rooted tho, any apps i can use? i already used gsam monitor but it doesnt say anything at all. 51% phone idle is so much. in the night i can lose up to 35%!
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Click to collapse
Yea thats a lot. Wakelock detect can work without root on some decices. Install the lite edition and foolow the instrucs in th3 app. I have done it in a while but its a few adb commands i think. Nothin to bad to set up no root needed

TheMadScientist420 said:
Yea thats a lot. Wakelock detect can work without root on some decices. Install the lite edition and foolow the instrucs in th3 app. I have done it in a while but its a few adb commands i think. Nothin to bad to set up no root needed
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Click to collapse
Thanks i will try. But shouldn't the problem have been fixed after i factory reseted the phone? Does it matter if i factory reset from phone settings? I will let you know what happens after my phone charges.

ChrisGR23 said:
Thanks i will try. But shouldn't the problem have been fixed after i factory reseted the phone? Does it matter if i factory reset from phone settings? I will let you know what happens after my phone charges.[/QUOTE
Other thing i do is boot into safe mode and leave it there for a while. A day or two and thattll tel you if its in the system or a after market app. Then one by one reenable all your apps. But i prefer wakelock. How old is ypur battery and ure charging habbits
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Also a app called ampre can tell u ure incoming aprages good to test plug blocks and cables
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Click to collapse

TheMadScientist420 said:
ChrisGR23 said:
Thanks i will try. But shouldn't the problem have been fixed after i factory reseted the phone? Does it matter if i factory reset from phone settings? I will let you know what happens after my phone charges.[/QUOTE
Other thing i do is boot into safe mode and leave it there for a while. A day or two and thattll tel you if its in the system or a after market app. Then one by one reenable all your apps. But i prefer wakelock. How old is ypur battery and ure charging habbits
---------- Post added at 11:05 AM ---------- Previous post was at 11:03 AM ----------
Also a app called ampre can tell u ure incoming aprages good to test plug blocks and cables
Click to expand...
Click to collapse
I will try to leave it in safe mode while im sleeping. If it still draining i will try to use the wakelock detector. My battery also is about 1.5 years old and i used to charge maybe once every 2 days. Now SOT is maybe 1-1.30 hours lol its draining like crazy when im not using it. Also it bootlooped once and got a motherboard replacement some months ago. I really need to find what is causing that. Ive tried everything like factory reset, wipe apps data, leave the phone in plane mode while sleeping.. Nothing fixed it.
Click to expand...
Click to collapse

ChrisGR23 said:
TheMadScientist420 said:
I will try to leave it in safe mode while im sleeping. If it still draining i will try to use the wakelock detector. My battery also is about 1.5 years old and i used to charge maybe once every 2 days. Now SOT is maybe 1-1.30 hours lol its draining like crazy when im not using it. Also it bootlooped once and got a motherboard replacement some months ago. I really need to find what is causing that. Ive tried everything like factory reset, wipe apps data, leave the phone in plane mode while sleeping.. Nothing fixed it.
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Click to collapse
Id try all that but sounds like time for a new battery. Theyre less than 10 dollars. And thats almost as old as mine mines about to that point but charges really fast and inget about 1.8 sot. I know mines the batttwry cause i use it in various phones and all about the same but im rooted debloated and already running all my optimizations
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Click to collapse

TheMadScientist420 said:
ChrisGR23 said:
Id try all that but sounds like time for a new battery. Theyre less than 10 dollars. And thats almost as old as mine mines about to that point but charges really fast and inget about 1.8 sot. I know mines the batttwry cause i use it in various phones and all about the same but im rooted debloated and already running all my optimizations
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Click to collapse
Yep probably will get a new battery if i see that nothing fix my problem as i already tried the things i mentionted above( factory reset etc)
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