I'm running the 12/28 CM10 nightly, and I'm having an issue with charging my battery. When the phone is on, the battery charges normally to 90%, at which point the LED changes from red to green, indicating full charge. If I leave it plugged in, the phone continues to charge to 100. However, the battery doesn't really charge past 90 because once I begin to use it the charge drops really quickly down to 90. Similarly, if I restart the phone, even if it said 100 before, when it is on again it says 90. I have had this issue with previous CM10 nightlies as well. It is a software issue, because if I turn the phone off and charge it, it charges to 100.
Any ideas on how to fix this? Thanks!
This is a suggestion out of the blue but maybe try recalrubratung your battery
omario8484 said:
This is a suggestion out of the blue but maybe try recalrubratung your battery
Click to expand...
Click to collapse
I did to no avail
Sent from my One X using xda app-developers app
A0A said:
I'm running the 12/28 CM10 nightly, and I'm having an issue with charging my battery. When the phone is on, the battery charges normally to 90%, at which point the LED changes from red to green, indicating full charge. If I leave it plugged in, the phone continues to charge to 100. However, the battery doesn't really charge past 90 because once I begin to use it the charge drops really quickly down to 90. Similarly, if I restart the phone, even if it said 100 before, when it is on again it says 90. I have had this issue with previous CM10 nightlies as well. It is a software issue, because if I turn the phone off and charge it, it charges to 100.
Any ideas on how to fix this? Thanks!
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Click to collapse
This is the intended bahavior. The type of battery used in phones last longest when they say between 80% and 20% of charged. So your phone will pull the maximum amount of power it can until it hits 90% then reduce power draw to a trickle charge.
The rapid drop is power is often the chip in the battery lying that it is fully charged when it is not. That is why you may see a rapid decline to 90% where your battery drain will go back to normal.
You might also see the phone telling you that it has 15% power then turning off. Upon reboot it will say it's at 0% or 1% that also is the battery trying to protect it self from damage.
This is a simplified explanation of how all phones work these days. The only difference you'll notice is how good the software is designed to lie to you about the power level. If it's good you won't notice these types of anomalies but they are still there.
Have you wiped battery stats?
dc211 said:
This is the intended bahavior. The type of battery used in phones last longest when they say between 80% and 20% of charged. So your phone will pull the maximum amount of power it can until it hits 90% then reduce power draw to a trickle charge.
The rapid drop is power is often the chip in the battery lying that it is fully charged when it is not. That is why you may see a rapid decline to 90% where your battery drain will go back to normal.
You might also see the phone telling you that it has 15% power then turning off. Upon reboot it will say it's at 0% or 1% that also is the battery trying to protect it self from damage.
This is a simplified explanation of how all phones work these days. The only difference you'll notice is how good the software is designed to lie to you about the power level. If it's good you won't notice these types of anomalies but they are still there.
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Click to collapse
Thanks for that informative answer. So I take it that means there would be no performance difference between turning my phone off, charging it, and then using it (with it saying 100%) vs leaving it on, charging it to 90% (green LED turns on) and then using it?
Related
hi, I'm having this problem with every ROM I try... led indicator gets green when battery reach 90% , how can be corrected? tried wipe battery status and nothing.
corvux360 said:
hi, I'm having this problem with every ROM I try... led indicator gets green when battery reach 90% , how can be corrected? tried wipe battery status and nothing.
Click to expand...
Click to collapse
Give a spin to the ROM I am on and try. Mine turns green only at 90%.
Also, do u have any LED color changing apps loaded that are getting loaded when u restore with TiBu?
I'm 99% sure this is normal operation.
Does it continue charging to 100%? Or does it stop at 90%?
Mine changes to green at 90% also. I just assumed it was normal.
Sent from my Inspire 4G using XDA App
I've only noticed the 90% green on CyanogenMod, running LeeDroid right now and the LED only turns green at 100%. I'm pretty sure this is a bug. In my opinion if this is intended to be a feature, there should be different notifications based on almost/fully charged. Maybe flashing at 90%, solid at 100%?
this is on most roms but its not a bad thing, its not like your battery life is bad its just showing when its basically done charging
It keeps charging to 100%. If you doubt it download current widget. It will tell you exactly how much power is being pushed to the phone.
Sent from Inspire 4G using Morse code.
I'm on CM7 and my LED turns to green at 90% as well. Is this something you are seriously concerned over? It's an LED color, as long as it continues to charge to 100% who cares lol.
As others have said, it is normal for the light to go green at 90%. Every ROM I've tried (except for LeeDroid) does the same thing, and from what I recall even the stock HTC ROM switches to green at 90%, which is probably the basis for most of the custom ROMs doing the same thing.
My guess as to why the light goes green at 90% is because that last 10% of charging time takes a while (due to an increase in charge trickling) and the average consumer would be waiting and waiting for their charging light to go green if it were set to 100%. The ROMs/kernels are designed to balance the convenience factor with a little loss in charged capacity.
As the battery charge gets closer and closer to 100%, the electrical charging current being sent to the battery decreases more and more. This is best practice when charging a Li-ION battery to help prolong its lifespan. In our Inspire phones I have noticed (using Battery Monitor Widget set to 1 minute intervals) that during a typical charging cycle, when the battery is between 1% and 59% the kernel or the ROM (not sure which one controls charging; my guess is the kernel) allows the battery to receive a full charge. Using the stock HTC AC adapter, this equates to around 820mA with the screen off. Once the battery reaches 60%, the software will start to throttle back the charging a little bit at a time - the higher the battery is charged, the less current is applied. By the time you hit the 90% mark, the battery is only being fed with around 100mAH of power and is still decreasing. So that last 10% takes a little while.
My stock Inspire doesn't go green until it hits 100%. I tested it twice to make sure. The last 10% does take a little longer, but still no green until charging is completed.
Sent from my Desire HD using XDA App
Try a battery calibration
Sent from my Inspire 4G using Tapatalk
Mine goes green at 90% while the phone is on. If charging and turned off it goes green at 100%. This is both when I was stock as well as now on MIUI
Posted from MIUI Inspire 4G
Quincux said:
Try a battery calibration
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Click to collapse
What? Please explain how this is done.
henrybravo said:
As others have said, it is normal for the light to go green at 90%. Every ROM I've tried (except for LeeDroid) does the same thing, and from what I recall even the stock HTC ROM switches to green at 90%, which is probably the basis for most of the custom ROMs doing the same thing.
My guess as to why the light goes green at 90% is because that last 10% of charging time takes a while (due to an increase in charge trickling) and the average consumer would be waiting and waiting for their charging light to go green if it were set to 100%. The ROMs/kernels are designed to balance the convenience factor with a little loss in charged capacity.
I
As the battery charge gets closer and closer to 100%, the electrical charging current being sent to the battery decreases more and more. This is best practice when charging a Li-ION battery to help prolong its lifespan. In our Inspire phones I have noticed (using Battery Monitor Widget set to 1 minute intervals) that during a typical charging cycle, when the battery is between 1% and 59% the kernel or the ROM (not sure which one controls charging; my guess is the kernel) allows the battery to receive a full charge. Using the stock HTC AC adapter, this equates to around 820mA with the screen off. Once the battery reaches 60%, the software will start to throttle back the charging a little bit at a time - the higher the battery is charged, the less current is applied. By the time you hit the 90% mark, the battery is only being fed with around 100mAH of power and is still decreasing. So that last 10% takes a little while.
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Well said HenryBravo.
The most efficient way it seems to calibrated your battery, in my opinion, is to first download current widget. Go to widgets and add the current widget widget to your screen. Plug in your phone, and leave it plugged in until your m/a reading says zero or 0m/a. You will see one hundred percent charged on the widget, tap on the 100 and a smaller number (anywhere from 30m/a on down will be present) it is this number that shows how much charge your phone is still drawing. Even though it says 100%, like HenryBravo stated, It is STILL drawing current, and until the widget reads 0m/a, is not fully charged. When you reach the coveted 0m/a mark, open file expert (or corresponding app) and go to the data folder. Then system. Then batterystats.bin - delete the file and reboot with phone plugged in (until reboted, then unplug) and your system will recreate your batterystats.bin file and have the proper value for a full charge. Also, this can be done by booting in to recovery, going to advanced, wiping battery stats, and rebooting. There are other calibration methods I have read of, which involve fully charging, depleting, charging again, etc... I have found this method yields the same results for me. Not all phones are the same and some phones yield various results with certain procedures, I am not sure if the battery calibration falls in this Category or not. Good Luck and hope it helps!!
-MyPocketWizard-
When I'm running CM7 this happens to me too. But on Cleardroid ROM it stays orange and wont turn green until 100%. I think its just part of the Rom, nothing to worry about.
corvux360 said:
hi, I'm having this problem with every ROM I try... led indicator gets green when battery reach 90% , how can be corrected? tried wipe battery status and nothing.
Click to expand...
Click to collapse
This is normal operation. It's not a bug. When your phone reaches 90%, that is when it resets the calculation of how long your phone has been on/off the battery.
Quoted directly from the phone manual, "As the battery is being charged, the notification LED shows a solid red light. The light turns to solid green when the phone is fully charged". Shouldn't really matter though, as long as the phone charges to 100%.
Sent from my Desire HD using XDA App
custom roms are designed to show green light at 90% charged battery.. unfortunately...
Ok, so I've been experiencing this for the past few weeks now, and I'm getting sick of it. I plug up my phone to charge it overnight, or just to charge it when I know I will be in a place for a while. After a while, the phones battery will say 100%. But when I take the charger out, the battery isn't fully charged. It IMMEDIATELY jumps down to around 40% - 70%. I can get it fully charged after unplugging and replugging the charger in, sometimes numerous times of unplugging and replugging. Also, my battery has died on numerous occasions on between 10% - 15%. I calibrated my battery the first day I got it (as a replacement) and got decent juice from it, a noticeable improvement from the old battery. Am I the only one experiencing these issues? Is there a fix for it???
*NOTE* I'm on my 2nd battery (replacement) and this is also a replacement phone. Also running GummyCharged 1.8 GBE on EP1Q, RFS, w/Minimal Gummy theme, if that matters. Also, its not just my phone, my wifes Charge phone has the same setup and it does it also. So it may just be something wrong Gingerbreak. Never did it on FroYo. Gonna Odin back to FroYo and report back.
Sent from my Droid Charge, GummyCharged 1.8 GBE, Minimal Gummy v1.1 theme.
This is because you cannot leave the phone plugged in to charge for an extended period of time. Once the battery reaches 100%, it stops charging. It will start charging again later, after the percentage goes down to a certain set level. This is why you have the huge initial drop-off after taking it off the charger. If you want to leave the phone plugged in for an extended period of time, turn it off and plug it in to allow it to charge, then it won't discharge as quickly. Otherwise, this is normal behavior for all android phones, and trying to make it so that the phone stays at 100% full charge is bad for both the battery and phone.
I've been having some strange problems. My phone will die with between 4-8 percent battery left. I can turn it back on and once it drops another percent or two it will turn off again. I have calibrated it and my battery life is good but this is a strange issue. Upgrading to rc2 today.
Droid Charge/Gummy 1.9RC 2.3.4
youngpettyboi said:
Ok, so I've been experiencing this for the past few weeks now, and I'm getting sick of it. I plug up my phone to charge it overnight, or just to charge it when I know I will be in a place for a while. After a while, the phones battery will say 100%. But when I take the charger out, the battery isn't fully charged. Its usually on around 40% - 70%. I can get it fully charged after unplugging and replugging the charger in. Also, my battery has died on numerous occasions on between 10% - 15%. I calibrated my battery the first day I got it (as a replacement) and got decent juice from it, a noticeable improvement from the old battery. Am I the only one experiencing these issues? Is there a fix for it???
*NOTE* I'm on my 2nd battery (replacement) and this is also a replacement phone. Also running GummyCharged 1.8 GBE on EP1Q, RFS, w/Minimal Gummy theme, if that matters.
Sent from my Droid Charge, GummyCharged 1.8 GBE, Minimal Gummy v1.1 theme.
Click to expand...
Click to collapse
'
I have the exact same problem. It will just go from 50% to 100% in a second and then unplug and plug back in to make it work. i haven't been able to figure it out either. 2nd phone and 2nd battery as well with same issue. I guess it has to do with my habits somehow.
imnuts said:
This is because you cannot leave the phone plugged in to charge for an extended period of time. Once the battery reaches 100%, it stops charging. It will start charging again later, after the percentage goes down to a certain set level. This is why you have the huge initial drop-off after taking it off the charger. If you want to leave the phone plugged in for an extended period of time, turn it off and plug it in to allow it to charge, then it won't discharge as quickly. Otherwise, this is normal behavior for all android phones, and trying to make it so that the phone stays at 100% full charge is bad for both the battery and phone.
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Click to collapse
I believe the use case he is suggesting is a little different than what you are describing. When the phone is plugged in at say 12%, it charges for a while and gets to say 63%. At that point it jumps to 100% immediately. The phone must then be unplugged from the charger and re-plugged in and then it will continue properly to 100%.
Hopefully that is a little clearer.
I mean, usually I turn it off to charge. And I have that No Moar Powah app installed. So I set it to reboot at 100%, it does and when I take the charger out, it immediately drops to between said percentages. almost like clockwork. Very annoying. I understand what u mean Imnuts, but my Vibrant, HD2, or others never experienced this issue. Also, my first Charge, would keep a charge if I left it on the charger once it hit 100%. Maybe an issue with the charger itself? A Verizon rep told me to bring in the charger itself if the issue persists.
Sent from my SCH-I510 using XDA Premium App
Almost exactly my issue. I'm not understandings what the problem is. I'm assuming u have that issue also???
Sent from my SCH-I510 using XDA Premium App
Hmm i have the opposite of that problem every time i unplug my phone from charging overnight the battery meter would always read 100% never below that.
Also does anyone know which battery meter i should follow for battery calibration? The battery meter in the status bar, the battery level in system settings/about phone/status, the battery percentage at the lock screen or the battery meter on the screen when the phones off? They're all giving me different readings for some odd reason.
Sometimes I get that too, but for the most part, its the false readings from the lockscreen, and the about phone settings. I may send off for a new phone, run stock for a few days to calibrate my battery then root on a full charge.
Sent from ur moms room... With my Droid Charge ;-)
imnuts said:
This is because you cannot leave the phone plugged in to charge for an extended period of time. Once the battery reaches 100%, it stops charging. It will start charging again later, after the percentage goes down to a certain set level. This is why you have the huge initial drop-off after taking it off the charger. If you want to leave the phone plugged in for an extended period of time, turn it off and plug it in to allow it to charge, then it won't discharge as quickly. Otherwise, this is normal behavior for all android phones, and trying to make it so that the phone stays at 100% full charge is bad for both the battery and phone.
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Click to collapse
I see what you're saying, but on the other hand I charge my phone overnight with no problems. Never did this before, but I don't have time to sit around for 6 hours for it to charge
Sent from my SCH-I510 using XDA App
Well I went back to FroYo GummyCharged v1.9 and lo and behold, the charging issues VANISHED. Charged my phone overnight last night and when I removed the charger, 100%. No drop immediately back down to 56% or some weird number. Maybe its a Gingerbreak leak issue. I've noticed that it only happens to my phone on Gingerbread. Also must mention, my wifes phone does it also. She's on Gingerbread. She complains that I broke her phone lol.
*EDIT* CONFIRMED. 2nd nite in a row, no issues charging.
Sent from my SCH-I510 using XDA Premium App
imnuts said:
This is because you cannot leave the phone plugged in to charge for an extended period of time. Once the battery reaches 100%, it stops charging. It will start charging again later, after the percentage goes down to a certain set level. This is why you have the huge initial drop-off after taking it off the charger. If you want to leave the phone plugged in for an extended period of time, turn it off and plug it in to allow it to charge, then it won't discharge as quickly. Otherwise, this is normal behavior for all android phones, and trying to make it so that the phone stays at 100% full charge is bad for both the battery and phone.
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Click to collapse
Imnuts...ill have to disagree with you. This is the only android phone I've had this problem on, and I've had 6 different android phones. also, it only started happening for me when i went to Gingerbread. Going to flash back to Froyo and i will update.
Sent from my SCH-I510 using XDA App
Same here with me. It only started when I went to Gingerbread. Also happened on my wifes phone, also on GB. I went back to FroYo 2 days ago, and boom, no more charging issues. I can leave it on all nite and not get the random percentage drops. I gotta calibrate my battery now.
Sent from my SCH-I510 using XDA Premium App
Flashed back to Froyo and charged overnight, unplugged an hour ago and now I'm sitting at 96%.
Gingerbread be buggin' yo.
scriz said:
Flashed back to Froyo and charged overnight, unplugged an hour ago and now I'm sitting at 96%.
Gingerbread be buggin' yo.
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Click to collapse
So it was a Gingerbread bug (GingerBug???) right? My battery life seems way better also. 6+ hrs off the charger and I am sitting on 73%. Not bad for me.
Sent from my SCH-I510 using XDA Premium App
The mis-information in this thread regarding Li-ion batteries is getting out of hand.
I think many of us are thinking about ni-cad batteries in which all the "bad" things we are talking about in this thread apply.
for a Li-Ion Battery, there is no "memory" effect. this means you can charge it at any point during the discharge phase. You also do not need to allow the battery to drain fully and charge to full to "condition" the battery. Li-Ion batteries can be charged at any point up to any point (from 30% to 70%, then 50% to 90%) and it will not effect the batteries performance.
Li-Batteries also do not suffer from overcharging. The charging circuits in cell phones will charge the battery until it is full, and then trickle charge from then on. And because Li-ion batteries do not have memories, this type of charging will not effect performance.
Li-Ion batteries can only be charged a finite number of times. However, the number of times does not translate to the number of times you happen to plug it in. The batteries have a rated number of "charge cycles", this is when the power from the battery has been exhausted and then re-filled. If you always charge your battery at 50% - 100% then every 2 charges you are using 1 full charge cycle. The batteries in the charge are 1600mAh and have approx 500 charge cycles. if you discharged and charged your phone from 0 to 100% every day, your battery would last 500 days before it would start to suffer from poor performance.
the OP in this thread is having software related issues related to the phone mis-representing the correct charge level of the battery, and then stopping the charge cycle prematurely.
Remember, it is perfectly OK, and expected of you to charge your battery as many times as you need to. Keep the thing on the charger any chance you get, it is not going to hurt it, its designed to be used that way. This is why Li-Ion took over as the battery tech of choice compared to Ni-cad.
References:
http://en.wikipedia.org/wiki/Lithium-ion_battery (not a definitive reference, just a starting point for people interested)
http://www.geek.com/smartphone-buyers-guide/battery/ (A Few good sentences in this about the topic
http://www.apple.com/batteries/ipods.html (Another good source, Ipod also uses li-ion batteries - as do almost all consumer electronics)
Experience:
Electrical Engineer/Nuclear Physics Double Major
UC Davis, California
College of Engineering
msticlaru said:
The mis-information in this thread regarding Li-ion batteries is getting out of hand.
I think many of us are thinking about ni-cad batteries in which all the "bad" things we are talking about in this thread apply.
for a Li-Ion Battery, there is no "memory" effect. this means you can charge it at any point during the discharge phase. You also do not need to allow the battery to drain fully and charge to full to "condition" the battery. Li-Ion batteries can be charged at any point up to any point (from 30% to 70%, then 50% to 90%) and it will not effect the batteries performance.
Li-Batteries also do not suffer from overcharging. The charging circuits in cell phones will charge the battery until it is full, and then trickle charge from then on. And because Li-ion batteries do not have memories, this type of charging will not effect performance.
Li-Ion batteries can only be charged a finite number of times. However, the number of times does not translate to the number of times you happen to plug it in. The batteries have a rated number of "charge cycles", this is when the power from the battery has been exhausted and then re-filled. If you always charge your battery at 50% - 100% then every 2 charges you are using 1 full charge cycle. The batteries in the charge are 1600mAh and have approx 500 charge cycles. if you discharged and charged your phone from 0 to 100% every day, your battery would last 500 days before it would start to suffer from poor performance.
the OP in this thread is having software related issues related to the phone mis-representing the correct charge level of the battery, and then stopping the charge cycle prematurely.
Remember, it is perfectly OK, and expected of you to charge your battery as many times as you need to. Keep the thing on the charger any chance you get, it is not going to hurt it, its designed to be used that way. This is why Li-Ion took over as the battery tech of choice compared to Ni-cad.
References:
http://en.wikipedia.org/wiki/Lithium-ion_battery (not a definitive reference, just a starting point for people interested)
http://www.geek.com/smartphone-buyers-guide/battery/ (A Few good sentences in this about the topic
http://www.apple.com/batteries/ipods.html (Another good source, Ipod also uses li-ion batteries - as do almost all consumer electronics)
Experience:
Electrical Engineer/Nuclear Physics Double Major
UC Davis, California
College of Engineering
Click to expand...
Click to collapse
This coming from a person WHO KNOWS WHAT HE IS TALKING ABOUT is very beneficial to us. Knowing that there is no way to actually "condition" a Li-Ion battery means that us who are actually suffer from poor battery life either have defective units or defective batteries. I hear of this miraculous 2 day battery life, yet I struggle to get thru a full 7 or 8 hrs with moderate usage. And this is a replacement unit AND battery. None of my other phones had that issue of immediately droping percentages like that, so I figured it was a software issue, that's why I went back to FroYo to test it out. Seems I was right. Gingerbread has a software issue that keeps the battery on some phones from reaching a full charge. Also my phone would be boiling hot during the charging process. Since reverting back, I've had no issues. Thanks for the insight. Coning from a knowledgeable source, it means a lot. Thanks!!!
Sent from my SCH-I510 using XDA Premium App
I have long suspected something was wrong here. So last night, I charged my G2X to 100%, then turned the phone completely OFF!
Nine hours later I turned my phone back on, saw the nice Trinity animation, and saw that my battery was now at 89%!!!
WTF? Can anyone tell me what's going on here? My battery is only 7 months old! How does the battery drain so much with the phone off???
It could be that the battery is lying when it's at 100%... but I have read that the g2x drains while shut off.
Next time charge to 100, reboot phone, see what % it's at, then shut off the phone and test.
When I had charged the battery to 100%, I had left it connected to the charger for about five hours at 100%.
EEngineer said:
When I had charged the battery to 100%, I had left it connected to the charger for about five hours at 100%.
Click to expand...
Click to collapse
Still doesn't change the fact that it could be lying.
Sent from my LG-P999 using XDA
Mine does this along with a few others, there is a thread on the subject already.
Sent from my LG-P999 using xda premium
mt3g said:
Mine does this along with a few others, there is a thread on the subject already.
Click to expand...
Click to collapse
Some say it could be the kernel, but there doesn't seem to be any resolution.
As to battery gauge accuracy, I have Battery Monitor Widget Pro installed and it verifies the sensor accuracy.
Charged to 100%, pulled the battery & let it sit for 8 hours. Just put the battery back in and the fuel gauge and Battery Widget Pro both say 100%.
With the way virtually every rechargable battery works this is pretty normal. When you charge a phone battery or anything really overnight it doesn't actually take the whole time to reach 100%. Most phones only require a few hours and after it hits the 100% mark it actually starts draining a little (as you have it plugged in) to about 95% or a little lower (your phone however is programmed to still display 100% to reduce user anxiety and will slowly adjust to the actual battery percentage as time goes on) And as someone already said, leaving the battery in the phone (even while it is off) will drain the battery too. This can be fixed by simply removing the battery until you want to use it.
ehafling said:
With the way virtually every rechargable battery works this is pretty normal. When you charge a phone battery or anything really overnight it doesn't actually take the whole time to reach 100%. Most phones only require a few hours and after it hits the 100% mark it actually starts draining a little (as you have it plugged in) to about 95% or a little lower (your phone however is programmed to still display 100% to reduce user anxiety and will slowly adjust to the actual battery percentage as time goes on)
Click to expand...
Click to collapse
This is false and contradicts my measurements. BTW, the Android battery API shows the real percentage of the battery and doesn't "display 100% to reduce user anxiety". A battery meter that lied about its charge would INCREASE user anxiety.
it is well known that modern Android phones, including iPhones, have sneak circuits that still operate when the phone is switched off, including the GPS. It's a big privacy issue.
Then why doesn't it happen all the time on all phones and roms? I can confirm while using hfp 2.1 it drained with phone off and battery inside, but on cm7 nightly latest and stock kernel it hasn't done it to me yet.
Sent from my LG-P999 using xda premium
Because it's up to the kernel. Different kernels behave differently when the phone is off.
Kernel
Prob Has to do with Kernel. Maybe its the battery driver your using.
For example I'm using Hellfire phoenix Rom with this Kernel > http://forum.xda-developers.com/showthread.php?t=1073626
I can use the one with DebouchedSloth's Battery Driver "(funky readings, but great battery performance)" or with the Official CM7 Battery Driver "(smooth readings, but battery life is slightly less than DebouchedSloth's driver)"
I think it's because the phone isn't actually off when you "power it off." I say this because when it's "off" and you plug in a power source the screen shows a charging graphic almost immediately, so it must still be on in order to detect the charger and show something on screen that quickly.
I had mine charged to 100%, turned it "off", came back 3 weeks later and it was dead.
Not sure why they'd design it like that. I guess the phone needs to be "on" in some sense to be able to charge while "powered off." I assume other phones can charge the battery while the phone is actually completely off.
O.K., just lost 10% battery overnight when powered off.
I've read that a draining battery when off is caused by the Fast Boot setting. When powered off some things are still running so the phone boots up faster.
In OEM Android there is a "Setting > Power > Fast Boot" that I can uncheck, but on CM7 I can't find that setting. Any ideas?
Hi everyone, im having a problem with this phone:
1- Charging the phone never reach 100% in one charge, it always stops charing at a random number, for example 70%, no matter how much time i let the phone charging it never goes past that. The solution is unplug and plug again, then it reaches 100%.
2- The number 1 is not a big deal but this is. The phone automatically turn off at a random number again, let say 66%, and i cant turn it on. If i connect the phone to the charger it says 0% battery. Is not like the % freezes at 66% and i use it all day and then turn off. For example, i have the phone at 100%, i start using it and i see the % going down like normal and after an hour or two of using it suddenly turn off and im not able to turn it on again because the battery is at 0%.
I tried:
Hard reset, wiping cache, data.
Hard reset, wiping cache, data and installing the latest stock rom.
New battery.
Different charger.
I have no idea what else to try, anyone have a clue?
Thanks!
I think the battery is broken, also had the problem. Then I bought me one on Ebay for 9,99€ and now everything is good again.
Try using a -known- good cable and charger.
Make sure the port contacts are clean and debris free. Always charge with screen off.
You can also try powering the phone off and see if this alters its charging pattern.
My best guess...
When it auto shuts down again pull the battery and measure its actual voltage to determine if it's at about 6%.
If actual voltage indicates it's at 6%* may be a bad battery (limited capacity) or a hardware failure (shutting the charge cycle down prematurely).
If battery actually has 20% or higher when the phone shuts down) it indicates a hardware failure in the phone.
If battery temp exceeds about 102°F during charging the phone will abort the charge; make sure this isn't the cause. A hot charging battery in a cool room could indicate a battery or hardware failure. If battery temp exceeds 107°F or so in operation the phone may also auto shutdown.
Excessive cold (>32°F) will effect battery capacity severely.
Don't charge a cold Li battery (under 70°F).
Never charge if at or below freezing**.
Li's like a charge temp range of 80-95°F
They prefer frequent, short mid range charge cycles (40-65%) vs topping them off beyond 80%
*hunt down the voltage/% charge for this battery
**can cause Li plating which will permanently degrade the cell
Hello. I just noticed something weird on my TCL 10L phone. When the phone reaches 100%, it displays fully charged on my lockscreen. Though, unlocking the phone I see the phone is still charging. I see the battery bar being green with a charging bolt. It takes around 15-30 minutes until it says charged (and the bolt removed). Is this normal? I do not remember the phone doing this when I bought it around 5 months ago.
Changes in charging and especially sudden loss of capacity can indicate a battery failure.
Check for cover swelling/bulging, battery swelling is a failure, replace asap if so.
A failure this early is rare but Li's can fail at any time in their life.
Inspect jack and port for contamination. Use a known good charger and cable. Try cycling the battery until the phone shutdown then charge to 100%, repeat... to calibrate battery indicator.
Minimum start charging temp is 72F
Best start temperature is 82-90F
Never attempt to charge a Li below 40F
Keep battery temperature below about 101F when charging.
Do not use phone while charging as it will skew the charging curve.
Thanks for the reply. There is no battery loss. I can play games on this device, browse, and check apps and drain the battery in the same period I did since I got it. I actually charged it to 100% since went to sleep. 9 hours later the device was still at 100%. 1.5 hour of playing a game after that and the battery was down to 84%. The issue is really weird. I am thinking a battery calibration may help. I do not know.
P.S. I am currently using Android 10 and I do not want to switch to Android 11.
I wouldn't worry about it.
It's best not to charge to 100%.or below 30%.
Lu's like frequent midrange power cycling (40-65%).
As for 11, no way that crapware is getting on my phones....
blackhawk said:
I wouldn't worry about it.
It's best not to charge to 100%.or below 30%.
Lu's like frequent midrange power cycling (40-65%).
As for 11, no way that crapware is getting on my phones....
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Did you personally experience this on any device? This is the first time I saw something like this. According to some articles the phone may display wrong battery stats. So I was thinking calibration would be a solution to this issue.