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[Q]Battery indicator showing wrong?

The last couple of days I've got a weird problem. When my battery is fully charged everything seems okay and it drains in normal speed (compared to stock).
But when my phone runs out off battery and i start to charge in the beginning everything seems fine.
But suddenly it can go from 75 to 100% in 1 minute.When i look at the stats in MIUI ROM it seems like it's not at same height as it was the last day of 100%. Maybe only 80%.
Sorry for my bad English, but i hope it makes sense.
I've wiped battery stats in CWM. But is it possible that the phone actually is only 80% charged, even though the indicator shows 100% after wipe?
Because if the ROM think the battery is charged and wipe stats it will afterwards only charge to that point and the battery maximum will decrease over days?
If that's possible, how do i full charge the battery? Just leave it in the charger or?
I hope you can understand what I mean.
Thanks in advance

Hello
Does your phone charge to fx 75% and after that doesnt get higher until after you restart the phone?
Sent from my LG-P990 using XDA App

CescMusta said:
Hello
Does your phone charge to fx 75% and after that doesnt get higher until after you restart the phone?
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
Yes excactly. But the numbers differs.
Today it charged to 100% though.
Got the same problem?
Sent from my Optimus 2X using XDA App

have you try calibrate your batt again
yes my friend have this problem too, maybe there is software bug

After flashing Celebration HD 2.0.1b I first used Battery Calibration from market to wipe battery stats. Afterwards the battery indicator problems started.
Yesterday i decided to wipe battery stats manually in CWM and drain to phone to 2% before charging, and afterwards I was able to fully charge the phone.
So maybe the bug in is Battery Calibration app?
I decided to install Juice Plotter to monitor the battery and compare it to one build in in MIUI. Just to get some more data.

Hello again
Yes i had the same problem as you, with my previosly 2 lg optimus 2x, and returned them because of the problem you mentioned. I am on the third op2x and luckily this work good
So if i were in your position i would try to go to the dealer and shift the phone with another lg optimus 2x.
Best regards
Sent from my LG-P990 using XDA App

CescMusta said:
So if i were in your position i would try to go to the dealer and shift the phone with another lg optimus 2x.
Click to expand...
Click to collapse
The user said that he started to have problem after a new rom and wiping battery stats, changing phone for that is not the smartest move at all. Is like changing phone because your rom doesn't work.
I have a similar problem, after you wipe battery stats you don't have a reliable indicator, for me the phone took 3 hours to get from 99 to 100%.
I also noticed that my miui ( 1.8.5 same for 1.7.29) doesn't update battery stats when the screen is off so all those plotter don't work, and i think this messes up with the battery indicator (I guess the phone doesn't have enough data to make a decent estimate)
I think is miui + wipe battery stats that can be problematic

I know that but i am just saying that i also had the same problem with the stock rom.
Best regards
Sent from my LG-P990 using XDA App

How old is the battery? How many cycles does it have?
I know from laptop Li-Ion batteries that the voltage vs. capacity is not linear.
When discharging, the voltage will steadily drop to a "wear-level" where it will jump to an almost depleted level. When charging, this "wear-level" will be at the top.
Why I am telling this? Because if this mapping is kept in SW and you wiped it, Android needs to relearn it again. So at 1st complete charging/discharging you would see a % sudden drop/raise, but at the next cycles it would be linear with time (although the total time will be smaller than a new battery).
When laptop/phone battery tips talk about calibration, it is so whoever monitors the voltage (circuit in battery or SW) to know were the wear drop will be, so your estimates to be better.
As an example, I had a very old Thinkpad that did not have any calibration, and it would discharge to about 40% and drop to 5% within seconds. But when charging, it would raise steadily to 70% (from that 5%) but 70% to 95% in seconds. After years of use, that percentage gap would just increase (40-5 got 60-5, 70-5 on discharging).
PS: my current Thinkpad has 4 years and the battery capacity is 49% with 150 cycles. But this one has a nice feature where if the battery was above a certain percentage, plugging AC would not charge it (and thus save a few cycles). I used it set at 70%.
PS: LiIon batteries have cycle count, heat and time as main enemies. Also don't like prolonged (think storage) low charge.

battery on wallcharger screen of error
CenaDK said:
The last couple of days I've got a weird problem. When my battery is fully charged everything seems okay and it drains in normal speed (compared to stock).
But when my phone runs out off battery and i start to charge in the beginning everything seems fine.
But suddenly it can go from 75 to 100% in 1 minute.When i look at the stats in MIUI ROM it seems like it's not at same height as it was the last day of 100%. Maybe only 80%.
Sorry for my bad English, but i hope it makes sense.
I've wiped battery stats in CWM. But is it possible that the phone actually is only 80% charged, even though the indicator shows 100% after wipe?
Because if the ROM think the battery is charged and wipe stats it will afterwards only charge to that point and the battery maximum will decrease over days?
If that's possible, how do i full charge the battery? Just leave it in the charger or?
I hope you can understand what I mean.
Thanks in advance
Click to expand...
Click to collapse
I have when i turn off my fhone and i charge it it shows a battery icon whit an error in it ics lgp990 please help i dont no what tho do

problem with battery please help

Hey guys
I have problem with battery
Now my battery 40% when left note sleep up to 3h i back i see battery 41%
I saw it with custom roms and stock i tried all kernels
And problems sometimes appear and sometimes no i tried wipe battery and
No diffrent
I want to destroy this problem for ever
Thanks alot.

No One Know How i can fix it ?

I don't think it's a bug.
I'm pretty sure it's just the way it estimates your battery percentage.
Here's how I think it works.
If you've been using your phone for, say, 3 hours straight, your phone calculates your drain rate like batt%/min or something.
And judging by how long you've used it for, it will estimate the approximate percentage of battery remaining.
When it's on deep sleep for a while, not only is the clock rate different (probably <200mHz at deep sleep), but the drain rate will change too.
The phone will re-estimate the battery percentage according to that new rate, hence the different (often higher) battery percentage, after a period of inactivity.
I could be completely wrong, but that's how I see it.

Thanks for ur Idea Brother

Any one have other Idea ?

I didnt get your problem....
Is your battery draining fast???you mean to say this???
Sent from my GT-N7000 using xda app-developers app

shivg86 said:
I didnt get your problem....
Is your battery draining fast???you mean to say this???
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
Hmmm i mean My Battery sometimes up 1% with itself

Charge your battery overnight n Wipe your battery stats in recovery.
Sent from my GT-N7000 using xda premium

little-vince said:
I don't think it's a bug.
I'm pretty sure it's just the way it estimates your battery percentage.
Here's how I think it works.
If you've been using your phone for, say, 3 hours straight, your phone calculates your drain rate like batt%/min or something.
And judging by how long you've used it for, it will estimate the approximate percentage of battery remaining.
When it's on deep sleep for a while, not only is the clock rate different (probably <200mHz at deep sleep), but the drain rate will change too.
The phone will re-estimate the battery percentage according to that new rate, hence the different (often higher) battery percentage, after a period of inactivity.
I could be completely wrong, but that's how I see it.
Click to expand...
Click to collapse
This might right ... I event experienced ..battery almost empty ..after restart the phone ..1 bar become 2 bars on battery indication ..

Portgas-D-Asce said:
Hmmm i mean My Battery sometimes up 1% with itself
Click to expand...
Click to collapse
If Battery drain is your problem, try this-
Discharge your battery till it switch off automatically
Now connect your charger in switch off mode and charge it till the full.
Now after recharging it fully, unplug your charger from the socket.
Go to recovery mode and go to advance,wipe battery stats and restart your device.
HIT THANKS BUTTON,AS IT IS MANDATORY.

shivg86 said:
If Battery drain is your problem, try this-
Discharge your battery till it switch off automatically
Now connect your charger in switch off mode and charge it till the full.
Now after recharging it fully, unplug your charger from the socket.
Go to recovery mode and go to advance,wipe battery stats and restart your device.
HIT THANKS BUTTON,AS IT IS MANDATORY.
Click to expand...
Click to collapse
Brother my Battery Not Drain its Incrase 1% with itself on deep sleep

[Q] weird charging reading !!

Recently a friend gave me his i9000 to check why his device always shut off suddenly. It runs stock GB . The problem is, the battery is charged but without showing any warning or low battery message , the device just turns off . So i exchange battery from another i9000 and saw, the phone works fine !! And the battery i got from the faulty i9000 and put into another one, bingo....that phone too wont turn on. So the problem is , that although, the phone works just fine, and battery will actually charge, it always shows the battery is charged 100 % !!! Always !!! I have installed CWM, tried at least three different kernels, and roms. Same result.
Does anybody can tell me , why this bizarre reading and why the phone and also every other battery widget show the it is charged 100 % while actually the battery is less than 10 % charged !!!

The battery is 90% at fault.
You should buy a new one

Nitro_123 said:
The battery is 90% at fault.
You should buy a new one
Click to expand...
Click to collapse
sorry mate, i might have confused you with the question. The battery is good, i tested on other galaxy S and that other phone, read battery charge level accurately . But the problematic phone, always shows 100% charge for every battery !!! So after a day or two, the phone should show low battery , but instead it just turns off, even than it would show battery is full !!!

sakibchy said:
sorry mate, i might have confused you with the question. The battery is good, i tested on other galaxy S and that other phone, read battery charge level accurately . But the problematic phone, always shows 100% charge for every battery !!! So after a day or two, the phone should show low battery , but instead it just turns off, even than it would show battery is full !!!
Click to expand...
Click to collapse
Clear the battery stats in recovery..
Sent from my GT-I9001 using xda premium

jabrif said:
Clear the battery stats in recovery..
Sent from my GT-I9001 using xda premium
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Click to collapse
Jabrif AFAIK I don't think it does anything :/
To OP then mate the phone hardware may be at fault. I'm not sure though as i've never heard of this before
Good luck

Inaccurate battery %??

After charging my battery fully to 100%, I unplug it from the charger and without even turning the screen on, the battery drains to 92% within one hour. I check the battery stats and there are maybe only a couple wakes during this time.
Sometimes, the battery shows a certain percentage longer than others. Example, my phone will be on 65% longer than it would be on 60%.
Battery still gives me a solid 2 days usage with about 3+ hours screen on time. The service menu also says that the battery is good.
Is there a way to get the battery reading to show more accurately?
Thanks,

Hope I could Help You
For your battery problem, I guess you could try calibrating it. And also try to install "Greenify" along with "Clean Master or 360 Security" and try to close all running apps before turning off the screen. I also turn on Stamina Mode when the battery is at 100%, in an attempt to further save battery life. And the result has been kinda meh, but well, battery drains about 1% per hour. It lasts about a day and half with light usage. In my case, light usage being, browsing, youtube videos for about 2 hours, listening to music, social networking and taking some pictures
Squatrack Curler said:
After charging my battery fully to 100%, I unplug it from the charger and without even turning the screen on, the battery drains to 92% within one hour. I check the battery stats and there are maybe only a couple wakes during this time.
Sometimes, the battery shows a certain percentage longer than others. Example, my phone will be on 65% longer than it would be on 60%.
Battery still gives me a solid 2 days usage with about 3+ hours screen on time. The service menu also says that the battery is good.
Is there a way to get the battery reading to show more accurately?
Thanks,
Click to expand...
Click to collapse

jeseunpark said:
For your battery problem, I guess you could try calibrating it. And also try to install "Greenify" along with "Clean Master or 360 Security" and try to close all running apps before turning off the screen. I also turn on Stamina Mode when the battery is at 100%, in an attempt to further save battery life. And the result has been kinda meh, but well, battery drains about 1% per hour. It lasts about a day and half with light usage. In my case, light usage being, browsing, youtube videos for about 2 hours, listening to music, social networking and taking some pictures
Click to expand...
Click to collapse
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.

Umm.. IMO, 10-20% is okay. I usually charge the phone when the battery gets around 5%. I read somewhere that charging battery too early can affect the battery's overall standby time (reducing it). It's better not to let the battery reach 0% though.
I had that happen with my Samsung Galaxy Note 2 earlier. I once let the battery dip all the way to 0% many times. After a few charge cycles, I found out that the battery was dead and wouldn't charge at all so I ended up buying a new battery :-/
Umm.. Coming back to our Z1's, could you try putting the phone in stamina mode everytime the phone is kept on standby mode? This boosted my battery life a lot I even put my phone on stamina mode throughout the whole night yesterday to test the battery life again, and when I switched on in the morning, I saw that the battery had dipped by just 2% (standby time of 7 hours). I'm really confused how your battery drops so fast, 100% to 92%.
Could you try calibrating the battery and then putting it in Stamina Mode while on Stanby and tell me the results? I hope I could help :fingers-crossed:
Squatrack Curler said:
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.
Click to expand...
Click to collapse

jeseunpark said:
Umm.. IMO, 10-20% is okay. I usually charge the phone when the battery gets around 5%. I read somewhere that charging battery too early can affect the battery's overall standby time (reducing it). It's better not to let the battery reach 0% though.
I had that happen with my Samsung Galaxy Note 2 earlier. I once let the battery dip all the way to 0% many times. After a few charge cycles, I found out that the battery was dead and wouldn't charge at all so I ended up buying a new battery :-/
Umm.. Coming back to our Z1's, could you try putting the phone in stamina mode everytime the phone is kept on standby mode? This boosted my battery life a lot I even put my phone on stamina mode throughout the whole night yesterday to test the battery life again, and when I switched on in the morning, I saw that the battery had dipped by just 2% (standby time of 7 hours). I'm really confused how your battery drops so fast, 100% to 92%.
Could you try calibrating the battery and then putting it in Stamina Mode while on Stanby and tell me the results? I hope I could help :fingers-crossed:
Click to expand...
Click to collapse
Yeah i could try to calibrate it. Im a little confused on what you do to calibrate the battery (ive read way to many opinions on this). Can you please tell me the steps.

Squatrack Curler said:
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.
Click to expand...
Click to collapse
Squatrack Curler said:
Yeah i could try to calibrate it. Im a little confused on what you do to calibrate the battery (ive read way to many opinions on this). Can you please tell me the steps.
Click to expand...
Click to collapse
I used this to help me - http://forum.xda-developers.com/showthread.php?t=1024867

Battery Draining too fast in my droid turbo what would be the solution for it .

i'm facing this problem that battery of my droid turbo draining to fast as it is having 3900mAh battery but draining really too fast tell me solution so that i can recover my battery life
im Having Adroid version Lollipop 5.1

Humza Arain said:
i'm facing this problem that battery of my droid turbo draining to fast as it is having 3900mAh battery but draining really too fast tell me solution so that i can recover my battery life
im Having Adroid version Lollipop 5.1
Click to expand...
Click to collapse
Are you using the version that came with your phone, or are you using something custom (i.e. CyanogenMod or Resurrection Remix)? Did you see what "supposedly" is the highest percent drainer under Settings->Battery?

calsurferpunk said:
Are you using the version that came with your phone, or are you using something custom (i.e. CyanogenMod or Resurrection Remix)? Did you see what "supposedly" is the highest percent drainer under Settings->Battery?
Click to expand...
Click to collapse
im using orignal software of verison and it is draining battery so fast
high percent of battery drainer is my display and cell stand by

Humza Arain said:
im using orignal software of verison and it is draining battery so fast
high percent of battery drainer is my display and cell stand by
Click to expand...
Click to collapse
Based on that, the only thing that I can think of is to turn down your display brightness (even try setting to auto if you haven't already) and if your cell service is often weak/non existent, then put it in airplane mode temporarily to turn off your cell radio (which will also kill calling and texting though). It also depends on just how fast your battery is draining. How much time are you getting with it on? How quickly is it draining (percentage wise per hour for example)?

calsurferpunk said:
Based on that, the only thing that I can think of is to turn down your display brightness (even try setting to auto if you haven't already) and if your cell service is often weak/non existent, then put it in airplane mode temporarily to turn off your cell radio (which will also kill calling and texting though). It also depends on just how fast your battery is draining. How much time are you getting with it on? How quickly is it draining (percentage wise per hour for example)?
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Click to collapse
i think its about 10% per hour when i use wifi internet on my phone .. and except this while i play game draining battery also fast i not getting its my battery issue or my software issue my 11% of battery consumed by my screen and cell standby consume 5% of battery as per my battery monitor in my phone

Humza Arain said:
i think its about 10% per hour when i use wifi internet on my phone .. and except this while i play game draining battery also fast i not getting its my battery issue or my software issue my 11% of battery consumed by my screen and cell standby consume 5% of battery as per my battery monitor in my phone
Click to expand...
Click to collapse
It sounds like some of that is just the software then as well. Before I unlocked the bootloader and installed CyanogenMod on mine, I used to see it drain quite a bit faster (especially during standby when the screen was off). A big part of that was being able to change the CPU clock speeds (which I lowered on mine) and adjusting it to where many apps couldn't wake up the phone anymore. When doing heavy gaming though, it's pretty much always guaranteed to drain quickly.

calsurferpunk said:
It sounds like some of that is just the software then as well. Before I unlocked the bootloader and installed CyanogenMod on mine, I used to see it drain quite a bit faster (especially during standby when the screen was off). A big part of that was being able to change the CPU clock speeds (which I lowered on mine) and adjusting it to where many apps couldn't wake up the phone anymore. When doing heavy gaming though, it's pretty much always guaranteed to drain quickly.
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Click to collapse
but im having lillipop 5.1 orignal with latest update but my battery draining bit fast

Humza Arain said:
but im having lillipop 5.1 orignal with latest update but my battery draining bit fast
Click to expand...
Click to collapse
I'm not saying the version you are using, but the actual stock software in general. It's definitely not optimized as well for battery life as it can be in a custom ROM and the bloatware doesn't help either. Using the phone for gaming will also take a hefty toll, regardless of what you are running.

calsurferpunk said:
I'm not saying the version you are using, but the actual stock software in general. It's definitely not optimized as well for battery life as it can be in a custom ROM and the bloatware doesn't help either. Using the phone for gaming will also take a hefty toll, regardless of what you are running.
Click to expand...
Click to collapse
so which thing i do to get more battery life? guide me

Humza Arain said:
i think its about 10% per hour when i use wifi internet on my phone .. and except this while i play game draining battery also fast i not getting its my battery issue or my software issue my 11% of battery consumed by my screen and cell standby consume 5% of battery as per my battery monitor in my phone
Click to expand...
Click to collapse
Do you mean 10% per hour of screen on time or screen off time? If you lose only 10% for an hour of screen on, you probably get 8-10 hours of screen on time per charge. I only get less than 5.

battery draining MM droid turbo
Hi Friends; after updating to MM, my droid turbo seems to have a 2000mah battery...done wipe cache partition before and after the new MM, an hard rest but in stanby or in aiplane mode the battery sucks 10 points and more in a few hours...could you help me? Please...
p.s. idle 22% standby 22%...no gps, no bluetooth, no notification, just a few applications...

Hi Friends; since updating to MM, my droid turbo seems to have a 2000mah battery...done wipe cache partition before and after the new MM, an hard rest but in stanby or in aiplane mode the battery sucks 10 points and more in a few hours without doing anything...could you help me? Please...
p.s. idle 22% standby 22%...no gps, no bluetooth, no notification, just a few applications...I tried, after charging to 100%, leaving the phone for some days without doing anything (no wifi, no connection, no signal) and I was surprised to read such draining as in the screenshot.
Anyone can reply and help me? What's the difference between idle and standby? The phone has a stock firmware, never rooted