Hi!
I am using CarbonROM 5.1 and I have a problem with the system shutting down at around 30%. The phone does not switch off immediately, but suddenly show 0% battery and shuts down properly. After restarting the phone it stays on for a few seconds and shuts down again. After connecting a charger to the switched off phone the battery level is shown between 20% and 30% and rapidly rises by around 5-15%. And with the charger connected to the phone it stays on. As soon as the battery level is over 35% I can use the phone without the charger... by the time we reach 30% again.
Do I need to replace the battery?
It's a good indication of a bad battery. If you open the device up, you will most likely notice that the battery is slightly swollen.
That happens to LiPo batteries that are about to die/are dead.
They start their death with the sign as you describe it. They can't supply the device with enough current at lover voltages any more (increased internal resistance). This causes the battery to drastically drop in voltage and the device suddenly shuts down due to the too low voltage.
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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
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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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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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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?
My moto E is having battery problems. I charge my phone to full battery, sometimes during a whole afternoon or night. Then in the morning or at 100% i unplug the usb. The phone then last a while on battery, but suddenly the battery drops to 0% and the phone shuts down. I can't get the phone back on again unless i plug it in with the usb to charge it. Then the battery charges ridiculously fast to 100%, sometimes in just a few minutes. When i check the battery graph it shows that the phone uses battery steadily for a while until there is a sudden and steep drop for no reason whatsoever. This drop occurs randomly sometimes at around 90% charge, sometimes 80%, 70%, 60%... There are no special apps running, and the phone is not even connected to the internet, not by WIFI or the phone network. Why is this happening? I can't leave my house with my new phone without the charger cable, even at 100% battery, because often i end up looking for a computer to charge my phone on after only an hour or two because my phone has shut down!
Can anyone help?
quackercoder said:
My moto E is having battery problems. I charge my phone to full battery, sometimes during a whole afternoon or night. Then in the morning or at 100% i unplug the usb. The phone then last a while on battery, but suddenly the battery drops to 0% and the phone shuts down. I can't get the phone back on again unless i plug it in with the usb to charge it. Then the battery charges ridiculously fast to 100%, sometimes in just a few minutes. When i check the battery graph it shows that the phone uses battery steadily for a while until there is a sudden and steep drop for no reason whatsoever. This drop occurs randomly sometimes at around 90% charge, sometimes 80%, 70%, 60%... There are no special apps running, and the phone is not even connected to the internet, not by WIFI or the phone network. Why is this happening? I can't leave my house with my new phone without the charger cable, even at 100% battery, because often i end up looking for a computer to charge my phone on after only an hour or two because my phone has shut down!
Can anyone help?
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Hello,
You need to replace the battery with a new one.
Please contact the nearest service center.
Regards
Vatsal,
Forum Moderator.
The battery level gauge of my Asus Z8 tablet with Android 5 has been behaving abnormally of late.
When I connect the charger, the charge level icon does not show power is connected and the battery level does not move. The Ampere app shows that device is on battery. However, the battery is indeed charging and Ampere shows the battery voltage creeping up. All this time, the battery gauge shows the same level, say 40%. I let it charge for a while. The meter still reads 40%, After a bit of use, presumably when the battery level goes down to 40%, it starts going down normally. I carry on using it, and the level displayed creeps down, to say 20%.
Connect the charger again, the level stays stuck on 20%, but the battery voltage goes up.
A reboot corrects the battery level, but the behaviour stays the same, except at the new reading.
I can get an estimate of the amount of charge from the battery voltage on Ampere., so it is usable, but a pain.
What I am most worried about is that the since the OS does not appear to know the unit is in fact charging, it could overcharge if I were to simply leave it to charge overnight as I usually do.
Any ideas anyone?
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
Last night after a couple of hours playing game, i fall asleep accidentally with my game still running.
When i woke up, i saw my phone turn off. I charging my phone then.
When i plug in the cable, the phone start charging at 5%. As for my experience usually when battery drop, it start charging at 0%.
So, it make me think that my phone turn off automatically when battery capacity drop below 5%.
I don't have complain about it. Instead, its a great feature for me who have bad habit.
But i still haven't found how to setting it up.
I want to setting it so my phone will turn off after battery capacity below 10%, not 5%.
So any solution to do that?