I dunno, maybe its not quite problem, just curious. When I had Palm, there when I unplug my phone, it immediately turn 99, which is normal I guess, because from mathematic view, hope you will understand.
But on my SGS2 I have 100 for some time. I am using Battery widget for monitoring battery, so I see, when I charge there was 4188 mV (calibration used here), I unploged, now it is 4150mV, and still 100%. Weird.
So is there something with it?? Do you have the same with it guys??
Thanks for replies.....
Retko85 said:
I dunno, maybe its not quite problem, just curious. When I had Palm, there when I unplug my phone, it immediately turn 99, which is normal I guess, because from mathematic view, hope you will understand.
But on my SGS2 I have 100 for some time. I am using Battery widget for monitoring battery, so I see, when I charge there was 4188 mV (calibration used here), I unploged, now it is 4150mV, and still 100%. Weird.
So is there something with it?? Do you have the same with it guys??
Thanks for replies.....
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Nothing is wrong. Android uses deep sleep feature which allows it to drain very little energy while locked and throttling while idle, so you'll stay at 100% for a while. That's perfectly normal.
Also if battery loses some of it's physical capacity over time due to charging cycles - the new, lower capacity value will still be reported as 100% when fully charged, it'll just go down faster.
wow is this thread ridiculous.
back in the day, people were satisfied with 3 or 4 battery bars, just to be generally informed whether they would have to charge the device next week or the week after and these days people are obsessed with their battery life (partly due to it being generally poor). i can understand the many people who are falsely claiming the android os bug, most of which are just unable to understand percentages, other people want to show off their battery life by running the phone in airplane mode and never installing any apps, just to show off "who has the longest", while robbing their phone entirely of its purpose...
and here we are, debating about fractions of % of the battery level which mean absolutely nothing.
i guess it makes sense, that 100% stays for longer than a second, because until 99.5 percent, it would round up. or maybe it counts from 100.0 to 99.1 and only when the .0 digit is triggered, the number goes down by one, effectively most of the time showing you 1% more than you have, but honestly, WHO CARES?
Related
I am having trouble, the charging LED never turns green for me. It was plugged in overnight. I installed an app called "Battery Monitor Widget" and left it plugged in. The highest it reaches is 3801mAh out of 3840mAh. It was at this state for 2 hours, saying 99% charged. The tech specs say this is a 4000mAh phone, is that rounded from the 3840 the app tells me? or is something terribly wrong with my battery? Anyone else experiencing this?
also, if anyone can recommend a battery monitor app, I would appreciate it. I downloaded the first one I came across that gave actual numbers instead of a bar.
it finally made it to 3840mAh and turned green. It has been plugged in since my first post. Can anyone verify that their phones battery capacity is 3840mAh?
Yes, mine is the same.
I use juice defender ultimate, set cpu and juice plotter.
Works great for me.
I just installed the free JuiceDefender app and it appears to need root to work:
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Thank you both. Ever since I left it plugged in for basically two days, it has been charging and turning green in what I consider a reasonable amount of time. I still think I have an underlying problem and expect to have a shortened batter life, but I also think I will upgrade to the next 7" from HTC before it causes frustration.
frh1: your added picture made me even more excited to own the flyer.
I think you're good. These batteries have to go through some charge cycles before the calibrated correctly. Some batteries will never see 100% after a few uses. Both of my Sammy 10.1's would say they were at 100 then as soon as you unplugged them they were down to 98. I thought there was something wrong with my view because it was taking a while to charge. My first view charged very quickly. I guess I didn't notice on the first one because i was playing with it so much, but after a few full drains and then charges it started charging faster. That's one of the things I like about the view, it charges fast.
This is my first Android, but what would cause my battery to drop from 51% to 18% after a reboot and then 10mins later raise back to 30%?
I'm running CM7 since yesterday
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This can come from not have a calibrated battery. If you didn't flash at 100% if will jump around the first few times. Give it a bit. Sometimes it will actually go up.
Fuel gauge glitch, happens sometimes, don't listen to people talking about battery calibration, our gauge is "convergent" and does not require calibration.
Sometimes it just flakes out. The MAX17042 assumes a "relaxed" (not recently charged/discharged heavily) battery on initialization. If something charges/discharges heavily after a reset it'll become "off" for a few hours. Just charge your phone up. It was most likely closer to 20-30% to begin with.
I figured 30% was the closer to the correct %
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Entropy512 said:
Fuel gauge glitch, happens sometimes, don't listen to people talking about battery calibration, our gauge is "convergent" and does not require calibration.
Sometimes it just flakes out. The MAX17042 assumes a "relaxed" (not recently charged/discharged heavily) battery on initialization. If something charges/discharges heavily after a reset it'll become "off" for a few hours. Just charge your phone up. It was most likely closer to 20-30% to begin with.
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My bad. I always assumed it was that. It usually doesn't happen after the first charge though.
Happened me too about it i was 50% and when i turn off and re on will drop quick at 12%. I belive it maybe battery die quick only if use reboot all time. Whitout using reboot or restart as far as i know there battery return normal i guess...
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My SGP5 battery has been wacky since day one. First few days I didn't think it would charge past 80%, but I found if you charged it overnight it would hit 100% (that's after an 8 hour charge to 80%).
Today it showed 100% all day. I booted it and now shows 30%. The settings battery status does not show actual time on the lower scale. Like I said I was at 100% all day, and the chart goes up to a 100% peak, but doesn't flatten or go down.... as if the battery clock stopped (not there is such a thing).
Can't do a battery pull... could rooting solve this issue? At least you can do a calibration with root. I just don't want to root if this will be fixed in an update. But I really don't like not really knowing how much battery is left.
I have a similar issue. It seems random- I use it all the time and literally 1/2 of the overnight charges I put it through it gets to either 80% or 100%. What I've noticed is that even when it says 80%, it still performed as if it was fully charged.
I rooted my device a few days after I got it and I honestly didn't notice the issue until after I rooted my device. So it may be different for you.
I'm not rooted. Have you tried something like: http://www.appbrain.com/app/battery-calibration/com.nema.batterycalibration or manual calibration deleting the battery stat file? I'll gladly root if it solves this problem.
savergn said:
I have a similar issue. It seems random- I use it all the time and literally 1/2 of the overnight charges I put it through it gets to either 80% or 100%. What I've noticed is that even when it says 80%, it still performed as if it was fully charged.
I rooted my device a few days after I got it and I honestly didn't notice the issue until after I rooted my device. So it may be different for you.
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Same here, mine has all the same problems and also the Horizontal calibration never settles
Sent from my SAMSUNG-SGH-I727 using xda premium
To show how squirrely battery charging is, I monitored with Battery Monitor Widget and looks like this, one charge overnight without unplugging:
(each grid line is 1 hour, little over 1 day shown, screen was NOT on during charging)
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Ok, here is my problem.
The battery indicator its stuck either at 100 % or 95%. I know my real batery life with a program (battery indicator pro).
It seems that the only way to charge it correctly is power it down and plug it to the charger (original by the way). If i charge it while is turned on, the indicator that signal the 100% charge never pops up.
I'm using the go launcher ex, its not rooted, and the stock rom (2.2.2 International).
PS:Yeah i know, my english is pretty bad, so please bear with me.
Mine gets stuck at 80%, both charging and discharging. After 3 or 4 hours at 80% it will go to 100% a few hours later. Hopefully they'll fix this on an update! The battery itself seems to be operating properly.
Well... I guess I take comfort in knowing that I am not the only one experiencing this odd bug. I have the exact behavior and like it's been said, my 5.0 player seems to have normal battery life. I just can't trust the charge indicator.
The method this device uses to estimate state of charge is VERY primitive.
It has a fixed table based purely on battery voltage - the problem is that battery voltage can vary quite a lot for a given state of charge depending on load.
https://github.com/Entropy512/linux_kernel_galaxyplayer/blob/master/drivers/power/adc_battery.h#L87
I'm not sure why they didn't use the MAX17040 fuel gauge that is built into the MAX8998 PMIC...
mV readings seem more accurate than %:
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mV readings are a poor estimate of state of charge, since they'll go up when on a charger, and down when under heavy load.
Our battery % indicator is derived directly from those mV readings. (Which is why our battery % estimate sucks.)
What IS odd is that you seem to have a case where the charger held flat at around 4060 mV for a while - which does correspond to an 80% reading. I think I've seen that once too, might be a kernel bug there, I need to look.
Showing 100% with the voltage dropping shouldn't have happened - I've never seen it myself.
I believe the "stuck" numbers are 80%, 100% and sometimes 65%. Happens every cycle for me, 80% being worst. But on a reboot, immediately drops 25-35% (depending how long it was stuck for). So if you reboot every hour, it will show good readings (but I reboot about once a month).
My tablets battery will say 100 then how down to 3% so ill turn it off then back on and it'll say like 35%. Then most recently its been stuck on 35-37% for some odd reason.
Did you guys try wiping the battery stats in CWM?
Hi, I know there are already many threads about it but I think I have a slightly different problem: while charging the phone is always active (as if he was doing something in the background) resulting in an extended charge time.
First thought: there must be an active process (developers opts-> show cpu usage) and ... nothing
Second thought: maybe "dmesg" can tell me something more and...
...well, that seems something
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The "adc" value of the battery significantly increases when connected to the wall charger, so even if the "adc_chg" value is high it is compensated by the high drain of the battery.
Am i wrong? Has someone any idea about the cause of the problem or about how to find it ?
Thanks (going mad, yet changed battery, charger and multiple USB flex ports )
You do know that our phone never deep sleeps when it is plugged? There is a specific wakelock for charging, which will keep the freq to 200mhz. As for battery drainage, nothing much can be done because our phone's charging capability is not advanced compared to newer phones and hence it is easy to drain the phone battery even when plugged. Doing simple things like closing all unused apps, keeping the screen off, turning off Bluetooth or WiFi may make the phone charge a little faster.
gsstudios
I did know it, it was stated somewhere in the previous threads. What I forgot to mention is that, actually, I'm talking of an s2 with Greenify activated, no third party background process admitted except Telegram & Whatsapp services but charging in offline mode, screen always off. And still says it will take 2h 45m when charging starting from 65%, math can be done for when starting from 1%.
Time ago it only took about 1h 45m to charge completely, so it seems strange.
[s2 with Unofficial CyanogenMod 12.1 from Markox89 - build 20160219]