I've now had the I717 Note for a month or so, and coming off the Streak, it has been hard to wean myself off the "charge at every available chance" behavior that the Streak has taught me. After the first week of fully cycling the battery (100 percent to shut off a few times to "teach" the phone) I reverted back to my old Streak ways of plugging it in every chance I've gotten.
However, the last few days I've been avoiding charging at every turn, and just letting it ride. And, I've noticed something odd in the reported battery percentage. I'm on the stock ROM, rooted, with a big letter status bar widget that numerically reports battery percentage, as well as running Batt Stat on all home screens. And, in the last couple days, when I leave the phone for a while and don't use it, both battery status devices (and indeed, as it turns out, the built-in stock device) I see more percentage remaining after a few hours of non use than was reported when I put the thing down.
The first few days I figured I was nuts. But I started writing it down to make sure. And, yesterday and today in the 3 times I put it down, didn't get a call, and didn't play with it, I noticed the following: Call ended, percentage remaining: 75 percent. Two hours later (ish) check email, 76 percent. Call received, 65 percent. Hour and a half later: 67 percent. And, just now, call made: 27 percent. Hour later, after not being able to sleep: 28 percent.
Anyone else notice weird increase of reported battery percentage with what I'd call extended periods of non-use?
Bonus question... anyone got a theory about what's happening here? I mean, I did like 5 full charge/full dead cycles... the ROM should know by now (I'd think) what the battery charge state is.
Happens on a lot of phones.. the battery usage graph and % remaining at the top indicate an estimate of what your percentage is/should be based on your current usage. As you stated you noticed this increase after not using the phone, it is adjusting itself because you went from a period of use to a period of non-use.
Sent from my GT-I9100 using xda premium
joshnichols189 said:
Happens on a lot of phones.. the battery usage graph and % remaining at the top indicate an estimate of what your percentage is/should be based on your current usage. As you stated you noticed this increase after not using the phone, it is adjusting itself because you went from a period of use to a period of non-use.
Sent from my GT-I9100 using xda premium
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Interesting. Never noticed it on my Streak.
But then, that thing would die in minutes it sometimes seemed... lol.
Related
Ever since I rooted my fiances and my phone his battery life is so much better then mine.
Mine right now is at 92% and has 17hrs 30mins
His is at 88% and has 24hrs 48mins.
Is there any way that I can improve mine without having to buy a new battery?
We are both using kaos v39.
Thank you for any help.
Sent from my FroyoEris using Tapatalk
Have you tried calibrating the battery?
Look here for details: http://forum.xda-developers.com/showthread.php?t=816618
labnjab said:
Ever since I rooted my fiances and my phone his battery life is so much better then mine.
Mine right now is at 92% and has 17hrs 30mins
His is at 88% and has 24hrs 48mins.
Is there any way that I can improve mine without having to buy a new battery?
We are both using kaos v39.
Thank you for any help.
Sent from my FroyoEris using Tapatalk
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Click to collapse
The battery % also isn't necessary accurate.
The phone uses a calculation of voltage (as closely as it can), temperature, and activity, to determine the %. Largely, the figure is just based on voltage.
Sometimes, when your phone is charging, it can say 83%, but be at a solid 4200mV (4.2 volts). It's probably not going to charge any further. If you power the phone off, the light will probably turn green (showing you that it's charged). Then if you boot it back up, the battery % might read 100%.
Is it 83%? Is it 100%? Clearly, in the 2 minutes it took you to turn your phone off and on, it didn't gain 17% battery.
The difference between 88% and 92% could be temperature, voltage of the particular battery at the moment, who just used their phone more in the past 2 minutes before checking, and (due to all the variables) practically 'dumb luck'.
What you really will see is if you let them go for a very very long time (until they get to 0% and auto-shut off), you'll find that whoever had their screen on more often (maybe whoever does more texting), or whoever has more 3g internet doing things in the background (if one of you has an email app that checks email every 10+ minutes, keeping the phone awake, and moving data), or whoever works in a workplace with worse reception (that will eat battery very quickly, as the phone uses battery to get 'louder' so that the cell phone tower can 'see' it), will have their phone hit 0% more quickly.
The difference between 88% and 92% may actually be nothing. It's just your phone's 'guess' at how much battery is left. His phone's 'guess' is different, because the variables going into the calculation are totally different for a handful of minor reasons.
I wouldn't sweat it.
If yours hits 10% when his is still at 40 or 50%, with similar usage, yeah, that's something to pay attention to.
But the battery % isn't THAT accurate, to even sweat 4%.
I promise.
labnjab said:
Ever since I rooted my fiances and my phone his battery life is so much better then mine.
Mine right now is at 92% and has 17hrs 30mins
His is at 88% and has 24hrs 48mins.
Is there any way that I can improve mine without having to buy a new battery?
We are both using kaos v39.
Thank you for any help.
Sent from my FroyoEris using Tapatalk
Click to expand...
Click to collapse
Alot of widgets can also change your battery life as well. Especially things like Facebook, location based weather, latitude, etc. Ones that are always updating and using data or gps.
pkopalek said:
The battery % also isn't necessary accurate.
The phone uses a calculation of voltage (as closely as it can), temperature, and activity, to determine the %. Largely, the figure is just based on voltage.
Sometimes, when your phone is charging, it can say 83%, but be at a solid 4200mV (4.2 volts). It's probably not going to charge any further. If you power the phone off, the light will probably turn green (showing you that it's charged). Then if you boot it back up, the battery % might read 100%.
Is it 83%? Is it 100%? Clearly, in the 2 minutes it took you to turn your phone off and on, it didn't gain 17% battery.
The difference between 88% and 92% could be temperature, voltage of the particular battery at the moment, who just used their phone more in the past 2 minutes before checking, and (due to all the variables) practically 'dumb luck'.
What you really will see is if you let them go for a very very long time (until they get to 0% and auto-shut off), you'll find that whoever had their screen on more often (maybe whoever does more texting), or whoever has more 3g internet doing things in the background (if one of you has an email app that checks email every 10+ minutes, keeping the phone awake, and moving data), or whoever works in a workplace with worse reception (that will eat battery very quickly, as the phone uses battery to get 'louder' so that the cell phone tower can 'see' it), will have their phone hit 0% more quickly.
The difference between 88% and 92% may actually be nothing. It's just your phone's 'guess' at how much battery is left. His phone's 'guess' is different, because the variables going into the calculation are totally different for a handful of minor reasons.
I wouldn't sweat it.
If yours hits 10% when his is still at 40 or 50%, with similar usage, yeah, that's something to pay attention to.
But the battery % isn't THAT accurate, to even sweat 4%.
I promise.
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Click to collapse
Thank you that makes me feel a lot better. I was starting to think something was wrong with my phone but your explanation tells me that nothing is wrong. =) Thank you for taking the time and patience to explain it to me. I didnt realize how little it could take to eat the battery down.
With very light usage, I've managed to get my Evo3D to last just shy of 2 and a half days. When actually using it, it's been a bit hit or miss, some days it tanks pretty fast, other days it's done quite well. But one thing I have noticed is that sometimes, especially around the 35% range, it'll spontaneously drop 10-15% (it actually did 43% straight to 14% this afternoon). It's visible in the battery use graph as a sudden nearly vertical line. It's never happened when I had the screen on actually doing something, it just happens randomly after turning the display off. Has anyone else seen this? It's pretty confusing.
First thing is first....
Did you download spareparts and see what is consuming battery? In other words, check for a wake lock.
You have to give the battery time to get conditioned. It gets better the more you go through charging cycles. I'm at 75% after 8 hours of moderate usage and that's pretty consistent for me.
Sent from my PG86100 using XDA Premium App
Darineth said:
With very light usage, I've managed to get my Evo3D to last just shy of 2 and a half days. When actually using it, it's been a bit hit or miss, some days it tanks pretty fast, other days it's done quite well. But one thing I have noticed is that sometimes, especially around the 35% range, it'll spontaneously drop 10-15% (it actually did 43% straight to 14% this afternoon). It's visible in the battery use graph as a sudden nearly vertical line. It's never happened when I had the screen on actually doing something, it just happens randomly after turning the display off. Has anyone else seen this? It's pretty confusing.
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Click to collapse
For the first week or 2, the phone has a hard time understanding how full the battery is. Try draining it down to 50% or so, and then resetting it. You'll probably see a sudden drop or rise in the battery%. Resetting it will force the issue, but it can also happen while the phone is on. That's pretty normal till the the phone "Learns" the battery.
It doesn't mean you suddenly used 15% of your battery, it would probably explode if you did that... it just means the phone re-calculated the battery's life and changed the number.
Your not alone as soon as mine hits 35 percent ill shut the screen off and here it beep at me and bang its at 14%. lol same as you.
Don't know if it will help you.
I had a similar issue as you, battery would get to around 30ish % I could turn the screen on check an email, set it down and bam 14%, and the low charge noise.
I wasn't trying to fix it, instead I was doing this http://forum.xda-developers.com/showthread.php?t=1153371
When I attempted this I had about 35ish percent battery left, following the directions my phone restarted when it came back up I got a 1% battery warning, then my phone went into emergency shut down. I thought something happened and I was going to have to return the phone. I powered it back up and it read 33%, from there on out my phone now drops a % at a time, and my battery life is as good as the other people who get phenomenal battery. I'm going on 48hours with light usage and still have 25% left. I've txt'd music, videos, nothing heavy.
Take it for what it's worth, I don't know what happened maybe the data reset, resets the battery calibration, I have no clue, all I know is what happened to my phone and the result.
Anyone else notice or have the same problem? I had mine plugged in to a full 100% charge for about 20 minutes (overcharge), took off charger and installed Chainfire 3D. Instantly dropped to 90%. I notice that this thing usually starts drops to 90% when even doing not that heavy usage. Is this something with these phones or batteries?
I have calibrated my battery on every software upgrade/rom install so roughly 4 times. Happens every time since day 1.
Elite49 said:
Anyone else notice or have the same problem? I had mine plugged in to a full 100% charge for about 20 minutes (overcharge), took off charger and installed Chainfire 3D. Instantly dropped to 90%. I notice that this thing usually starts drops to 90% when even doing not that heavy usage. Is this something with these phones or batteries?
I have calibrated my battery on every software upgrade/rom install so roughly 4 times. Happens every time since day 1.
Click to expand...
Click to collapse
Someone Posted That After The Battery Reaches Full Charge, Restart The Phone.
MikeJ92YJ said:
Someone Posted That After The Battery Reaches Full Charge, Restart The Phone.
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Click to collapse
Sorry should of mentioned I do that also.
Your phone says the battery is 90% because the battery meter only reads 10% increments. Probably is 99% but it drops to the nearest round 10.
Given the way the DX2 with stock is you won't get to actual 90% for another 5 minutes or so.
Google the ordeal. Besides the note of 10% increments note the way Android handles charging. There was a TON of "hype" about this and phones dropping the top 10% extremely quickly, but it has to do with how the phone charges and "reads" the charge level. Just not it will never stay at 100% for even a short while, there is nothing wrong with the charging or battery, and its not "ripping you off" of 10% of charge. The battery is fully used and this is meant to happen.
When I wake up in the morning and the phone is fully charged, I disconnect it and reboot it. I use the phone lightly to moderate throughout the day and by the time I go to bed I'm still usually around 30% to 40%.
Hmm...well, this is the second time that this has happened in the 2.5 weeks that I've owned this phone. I'm currently running unNamed ROM 1.2.0 and noticed that my battery is draining quicker than usual (8%-10% drain per hour on IDLE).
Usually, my battery drain is between 1% - 2% per hour on unNamed. What I've noticed in both the instances where my battery drains rapidly is that I end up seeing 'Core Apps' (white envelope with android icon in the middle) under the Battery Usage. From what I can recall about this icon, it's the icon for the launcher. CPUSpy shows my phone at 78% deep sleep (the phone's usually around 93% - 95% deep sleep when in idle).
The first time this happened, I was away from home on business for 1 night and ended up having to power my phone off when it got down to 11%. Got home later that day and recharged my battery while the phone was off and after the phone was 100% charged, it lasted 38 hours with 7% left before I powered off and recharged. Again, the battery with light usage lasted 30 hours with 30% left.
Today, after charging (while off - seems to charge better this way) I was surprised to see that my battery was draining at ~10% per hour and I saw that 'Core Apps' was listed under Battery Usage again.
Fortunately, I am not away on business this time (yeah, my spare charger is on the way) so I can recharge teh phone at home. Is the only way to "reset" the phone's battery usage history by pulling the battery or charging the phone?
Hopefully, one of the devs can answer or provide a fix/workaround for the 'Core Apps' drain? (BTW, I leave my WiFi on all the time and my phone still lasts anywhere between 28 hours to 40 hours...just wondering why I have these sporadic glitches when the battery doesn't seem to last long.)
From my experience... this will be very hard to fix. Usually appear ramdomly, and disappear randomly.
amtrakcn said:
From my experience... this will be very hard to fix. Usually appear ramdomly, and disappear randomly.
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Yeah...the 1st time it happened, I was wondering "WTF is 'Core Apps'?"
Now that I've seen this the 2nd time, I'm stumped by it since you're right...it doesn't happen often and doesn't seem to be reproducible by any consistent method.
Hard to do a battery pull with this Neo Hybrid case (case is a PITA to remove) and I don't have my 2ndary charger yet...
Rebooting the phone does nothing since the battery history remains and even powering off for an hour and then powering the phone back on still doesn't clear out the battery history so the drain continues!
Oh well...it is what it is then I guess...I was hoping that someone smarter than I could find a way to cure this. (BetterBatteryStats doesn't show this as a wakelock (partial or full)...CPUSpy just that my deep sleep state is in the mid to upper 70% which isn't the norm.
Oh well, hopefully, this doesn't happen too often.
Wiping battery stats in CWM does reset the battery useage screen.
Adelaide. said:
Wiping battery stats in CWM does reset the battery useage screen.
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But a few have reported their phone doesn't behave right in reporting battery percentages after wiping battery stats.
Doesn't mean you can't. But no one has proven it helps.
Sent from my SAMSUNG-SGH-I777 using XDA App
I haven't had any issues that can't be directly linked to something else (like random reboots).
If all you want to do is reset your battery useage screen to zero it definitely does that. The point isn't to help anything, just to reset the screen to zero without having to wait for the phone to charge all the way.
In that case not a bad idea if you see it show up. If it's as bad of a battery drainer as it seems and still running, it should show up again pretty quick after you clear battery stats.
It'd be useful in reading the logs to know that at a certain time it was for sure running.
Sent from my SAMSUNG-SGH-I777 using XDA App
Have you checked entropy's battery drain thread for ideas?
Sent from my Toshiba THRiVE using Tapatalk
hlb3 said:
Have you checked entropy's battery drain thread for ideas?
Sent from my Toshiba THRiVE using Tapatalk
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Dunno, it's just odd...recharged my phone last night and now I'm back to 1%-2% battery drain on idle and the phone's going back into deep sleep at 93% and I haven't touched any of my settings. I just let the phone dip to 19% and powered off and put it on the charger for ~4 hours (I know, I could've pulled it sooner since it wasn't at 0% but honestly, I forgot.)
It's just the weirdest thing...whenever Core Apps appears as the envelope w/Android icon it seems to be persistent and stays in the battery usage. However, there have been times when the Core Apps appears as teh same icon as 'Contacts' and will disappear on it's own after a while. <-- This seems to be okay as the battery drain remains minimal.
I'll have to check out Entropy's battery drain thread later to see if I can gain any insights. (Haven't ever flashed any of Entropy's kernels as standalones -- I've just been flashing unNamed ROM so I know the kernels are stable builds and not the experimentals.)
So I have narrowed down why my battery dies even when I'm not using my phone...for some reason when I look at the stats under battery usage, the battery seems to be awake almost 60 to 70 percent of the time, EVEN when I'm not using the phone...my battery lasted a total of 15 hours...I made a 20 minute phone call and screen usage was 25 minutes on lowest settings....4g was on wifi was on...automatic background data was off...gps on....everything else was off....why is the phone waking when it is not being used???? any way to find out?
seansk said:
So I have narrowed down why my battery dies even when I'm not using my phone...for some reason when I look at the stats under battery usage, the battery seems to be awake almost 60 to 70 percent of the time, EVEN when I'm not using the phone...my battery lasted a total of 15 hours...I made a 20 minute phone call and screen usage was 25 minutes on lowest settings....4g was on wifi was on...automatic background data was off...gps on....everything else was off....why is the phone waking when it is not being used???? any way to find out?
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Have you tried restarting your phone and then tracking the battery usage?
Just my .02 here, I installed Earth HD live wallpaper and the phone went crazy. I keep it plugged into my laptop during the day and noticed that the battery was slowly draining instead of maintaining, not much only a couple of percent. Toward the end of the day I noticed the the battery charge was in the 50% range and dropping fast, you could see the go down so I did a reboot and the charge came back at 4%. So you may want to look at what you have installed and try removing apps that may cause issues. I removed the app and now no problems, I'm also using Beastmod.