Develop Bugs

[Q] What the hell is this dip in my battery life?

So, at some point I turned off my phone and I -think- the sudden spike down in battery life is around that time.
Anyone got any explanations?
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Mine has done that as well a couple of times. One time I had a charge of around 75%...rebooted my phone, and the battery was down to 15% percent.
Maybe it's just another bug we'll have to deal with until they come out with a fix.

thats strange mine doesnt have that much of a dip

every samsung product I have does this, gt 7, gt 10.1, droid charge, and this one. I don't recall my og droid, evo 4g or 3d doing this.

All phones show a dip when there is a battery pull while the phone is on....
Sent from my SPH-D710 using xda premium

Wasn't a pull, just a shutdown and reboot.

gmap516 said:
So, at some point I turned off my phone and I -think- the sudden spike down in battery life is around that time.
Anyone got any explanations?
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Hi, what app is this?
Sent from my SPH-D710 using Forum Runner

Stock battery stats lol

**** didn't notice that graph at the top.
Sent from my SPH-D710 using Forum Runner

well if your phone was rebooted then that bald would have been reset because it displays monitors since last power-on.
there seems to be a bug where the cpu fails to underclock after a certain amount of usage and/or load. rebooting after intensive apps and/or before leaving the phone idle for extended periods of time seems to solve the problem for me. yes i get that too.

expr said:
**** didn't notice that graph at the top.
Sent from my SPH-D710 using Forum Runner
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just press on top after you press battery usage on the screen that shows you the battery usage.

Battery life

This phone is only lasting me about 8 hours before my battery will die. What can I do to help out my battery?
Sent from my SPH-D710 using XDA App

download an app call battery calibration, then after a full night of charging, go to that app and calibrate with the charger plug still in, after its done reboot phone and take it off the charger. drain the battery until it shuts off by itself. charge it back up while its off. then continue to use as normal. wait a couple days to see if the battery gets any better. my phone doesnt last too long either, im thinking of replacing the battery to see if thats the problem

Try removing some apps, that worked for me there was some apps that were sucking up my battery.
Sent from my SPH-D710 using xda premium

slap on a extended battery!

Kiss it three times, say two Hail Mary's and toss it over your left shoulder.
No seriously, battery life is very dependent on many things, and your statement doesn't come close to providing enough information for anyone to give you any real help. At minimum you need to provide the following during your 8 hours ...
- Total Display on time
- Brightness setting
- What you have auto syncing and how often
- Average signal strength
- Usage pattern (web browsing, calls, streaming video, etc.)
- Widgets on your home screens
- Screenshots of your battery usage and graph

My phone will also last around 8 hours if im constantly using it.

Thanks everyone for the responses. I will try out all the advice.
Sent from my SPH-D710 using XDA App

wxcolon said:
Thanks everyone for the responses. I will try out all the advice.
Sent from my SPH-D710 using XDA App
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With moderate use, I get about 20 hours. With heavy use I get about 10-12. It's still enough to get me through the day
Love this phone!

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This is my battery after heavy use. I love the battery. Calibrated.
Sent from my SPH-D710 using XDA App

Battery Drain because of Screen

I'm running FB17 and the battery is draining pretty quick and it seems the screen is the culprit....
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The screen has been turned off for most of the 5+ hours its been up....any ideas??
Sent from my SPH-D710 using XDA App

Samsung probably hasn't calibrated the battery stats yet on these new builds, so a lot of those values are probably off from their "true" values. When I tried to run FB17 as my daily, I had to give up after less than a day because of battery drain, even with underclocking and configuring the governor to be more conservative.The SoC's power saving features probably haven't been implemented yet.

The screen has always been a problem for battery drain. I'm on 2.3.6 gingerbread EK02 and its still a factor for the bad battery life.

Are you using autobrightness? If not, what is your brightness set at?

ebuc said:
The screen has always been a problem for battery drain. I'm on 2.3.6 gingerbread EK02 and its still a factor for the bad battery life.
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I ran Blazer for months and never had an issue with battery life....Phantom and Calk's ROMs always seem to produce better battery life than stock.
TriBeard said:
Are you using autobrightness? If not, what is your brightness set at?
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Ya...always use autobright. The thing that's baffling is the phone was sleeping for 5 of the 5+ hours. I just don't get how the screen was 50% of the battery drain when it was off.

anthony67 said:
I'm running FB17 and the battery is draining pretty quick and it seems the screen is the culprit....
The screen has been turned off for most of the 5+ hours its been up....any ideas??
Sent from my SPH-D710 using XDA App
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High android os usage is killing my battery . Does your os usage always run that low? Mine is usually around 20%
Sent from my SPH-D710 using xda premium

parmend said:
High android os usage is killing my battery . Does your os usage always run that low? Mine is usually around 20%
Sent from my SPH-D710 using xda premium
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No....it fluctuates depending on use.

How is everyone finding the battery life on CM10?

I would have asked this in the thread, but I'm new so can't make posts there. Anyways, for me it's pretty terrible.
It's been 9 hours and 51 minutes off charge and my batter is at 40%. The screen on time is 34 minutes and set to autobright. Anyone else getting anything this bad?

melted_cow said:
I would have asked this in the thread, but I'm new so can't make posts there. Anyways, for me it's pretty terrible.
It's been 9 hours and 51 minutes off charge and my batter is at 40%. The screen on time is 34 minutes and set to autobright. Anyone else getting anything this bad?
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How long have you been using this ROM for ? It usually takes at LEAST 2-3 days of use before battery stats improve. That goes for every new ROM you install.

The battery in cm10 is great I'm seeing 1% per hour in standby just run a few cycles it will calm
Sent from my HTC One X using xda premium

I've been using p12v2 the day it came out, but I've been using the ROM since p5. Should I just run it through a few full cycles then?

melted_cow said:
I've been using p12v2 the day it came out, but I've been using the ROM since p5. Should I just run it through a few full cycles then?
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Have a look at cpuspy on the market check that your going into deep sleep what %
Sent from my HTC One X using xda premium

whynot66 said:
Have a look at cpuspy on the market check that your going into deep sleep what %
Sent from my HTC One X using xda premium
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Ah, I forgot I installed that. Deep sleep is at 58%

I recently had quite good battery life on eprj cmx(10). I got about 3.5h screen-on time, and in total a time of 6.5h. Look at my quote below(yip I just did quote myself).
timlambo said:
Here are some battery stats for the concerned.
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I did actually use the phone as you can see. This is just very normal usage. Browsing, xda and flipboard mostly. Also running on the oc version and lowest screen brightness(which is still quite bright).
Sent from my HTC One X using xda premium
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Battery life

Good battery or software bug? Still on 100% even after 1hour 25 minutes
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And I have played candy crush for 10 minutes, half hour YouTube, dual sim connected with 4G
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Nizamani said:
And I have played candy crush for 10 minutes, half hour YouTube, dual sim connected with 4G
Sent from my SM-A705FN using Tapatalk
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I think its just a bug, mine seems to stay on 100% for a long time too. It does drop eventually. The battery life is very good on this phone though. I've never had it run out during a day yet. It does seem to better reflect battery use at it gets lower.

GavCity said:
I think its just a bug, mine seems to stay on 100% for a long time too. It does drop eventually. The battery life is very good on this phone though. I've never had it run out during a day yet. It does seem to better reflect battery use at it gets lower.
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Yes you are right after 90 minutes it's dropped to 99 and 98, I thought I have to restart to get correct reading but didn't
Sent from my SM-A705FN using Tapatalk

I have same issue. Stays at 100% after 30mins or more of usage. As soon at it drops to 98% battery drain becomes normal.
I did the calibration reset code *#0228# and it didn't change a thing.
Battery life is good on this phone but nothing impressive.

Probably needs a few charge cycles for the battery to calibrate properly, happened to me too.

Still going strong, no power saving , 4g all the time , Bluetooth all the time, alot of games, Facebook and YouTube
Sent from my SM-A705FN using Tapatalk

My battery life

this phone is excellent on battery life.
when i first used it and charged it to 100%, I noticed the same thing, and was confused, checked to see if the phone froze, etc. But then I started to feel invincible from the overabundance of power. LOL.