Like i post in title : "What if battery discharged during upgrade?!"
When I shifted to Android, I have not thought about the battery, and the battery is discharged, the phone will not start, is it a big problem and can it be corrected?
So long as it didn't happen during radio or hspl,, ,chances are it's ok.
saky90 said:
Like i post in title : "What if battery discharged during upgrade?!"
When I shifted to Android, I have not thought about the battery, and the battery is discharged, the phone will not start, is it a big problem and can it be corrected?
Click to expand...
Click to collapse
Charge the phone fully, and then go on.
Good luck.
saky90 said:
Like i post in title: "What if battery discharged during upgrade?!"
When I shifted to Android, I have not thought about the battery, and the battery is discharged, the phone will not start, is it a big problem and can it be corrected?
Click to expand...
Click to collapse
Have the same problem! Even changed the battery, does anybody know the reason?
Related
Hello.
So, we all know that Android is kinda messed up regarding battery % and that we need to calibrate it in each build etc.
The thing is, when it is not calibrated and Android shows 89% when it is really 100%, won't the battery overcharge?
And why did WinMobile never had this problem? What is the method used in WinMo?
Well the basic thing is whenever you flash a new rom on your device, it looks at the current voltage of your battery and decides what percentage it has. So you will have to recalibrate the battery every time flash new rom. But to be frank I never did that and I have no problems with my battery. What I do is before flashing a new Rom I make sure to charge my phone overnight. Another thing you can do is use widgets like battery monitor widget to look at the voltage when its 100%. It should be somewhere around 4200mv.
jalshah05 said:
Well the basic thing is whenever you flash a new rom on your device, it looks at the current voltage of your battery and decides what percentage it has. So you will have to recalibrate the battery every time flash new rom. But to be frank I never did that and I have no problems with my battery. What I do is before flashing a new Rom I make sure to charge my phone overnight. Another thing you can do is use widgets like battery monitor widget to look at the voltage when its 100%. It should be somewhere around 4200mv.
Click to expand...
Click to collapse
Yeah I know that. But if it is not calibrated and for example it is 89% when the battery is 100% charged, can't it overcharge?
I noticed that when the battery reaches the appropriate voltage the current decreases from 800mA to 60mA or so... So I assume that there's some hardware check that disables charging even if the indicator shows 89%...
DeadVirus said:
Yeah I know that. But if it is not calibrated and for example it is 89% when the battery is 100% charged, can't it overcharge?
I noticed that when the battery reaches the appropriate voltage the current decreases from 800mA to 60mA or so... So I assume that there's some hardware check that disables charging even if the indicator shows 89%...
Click to expand...
Click to collapse
the battery has a chip attached to it that prevents overcharging
casemandan said:
the battery has a chip attached to it that prevents overcharging
Click to expand...
Click to collapse
Nice then
And what about windows mobile? How it always knew the right % ? Why does Android has problems with this?
DeadVirus said:
Nice then
And what about windows mobile? How it always knew the right % ? Why does Android has problems with this?
Click to expand...
Click to collapse
Windows knew it because windows was the first rom to be flashed on that device. After that we flashed another rom(android) which is not meant to be on this phone. hehe...
jalshah05 said:
Windows knew it because windows was the first rom to be flashed on that device. After that we flashed another rom(android) which is not meant to be on this phone. hehe...
Click to expand...
Click to collapse
I was not talking about stock WinMo ROM, but about when we change to a custom WinMo ROM... it is also not the first ROM but it knows the correct %...
DeadVirus said:
I was not talking about stock WinMo ROM, but about when we change to a custom WinMo ROM... it is also not the first ROM but it knows the correct %...
Click to expand...
Click to collapse
Well I am not a dev or know anything about programming side. But according to my understanding, other winmo roms are basically same as the original ROM with only some visual changes. So the files right at the system level will be unchanged mostly. But android builds are made from different phones' roms. So their system files may have to be edited....
Let's say an android phone with 5V battery rating would rate 4V as 80% whereas same ROM if put on different phone with 4V battery rating, it will still show 80% though the battery is actually 100% charged.
Though I might be wrong. Its just a guess....
I just flashed SyNthetic_aospX 1.0.0-BR7 on my HTC Glacier and started observing a little weird behavior with it. It died of battery, but when I restarted it, the phone showed 10% battery remaining.
I switched off and put it on charging, after 1.5 Hr, the charging indicator was still yellow but I switched on the phone and boom, it showed 100% charging and the led turned green. To double check I switched off the phone and plugged in, it was still showing yellow led. After around 45 mins, the battery was fully charged in off mode.
Is this some behavior known to anyone? Or it is time for my battery (my phone is still with original battery and it's almost 2 years).
Any help is highly appreciated ...
Well, first off, did you flash at 100% battery?
Second, is your battery swollen at all? It probably is after 2 years. I had to replace mine after a little over a year.
I can tell you that, even on CM7, I leave my charger off while in recovery because it might say 50%, but as soon as I reboot it might say 70%. A magical 20% increase in 45 seconds. Still, your battery behavior is off. If you decide to replace it, check out Anker.
Don't forget to flash another ROM to compare battery behavior.
estallings15 said:
Well, first off, did you flash at 100% battery?
Second, is your battery swollen at all? It probably is after 2 years. I had to replace mine after a little over a year.
I can tell you that, even on CM7, I leave my charger off while in recovery because it might say 50%, but as soon as I reboot it might say 70%. A magical 20% increase in 45 seconds. Still, your battery behavior is off. If you decide to replace it, check out Anker.
Don't forget to flash another ROM to compare battery behavior.
Click to expand...
Click to collapse
Thanks estallings15, I initially flashed at < 100% but then realized my mistake so did a full wipe and then charged it to 100% (when powered off). And then flashed it again.
Seems my battery is little swollen, can't say though, I would give it a shot to replace it.
I tried another ROM but did not use it for full battery cycle, as I just love this ICS
If you decide to replace it, check out Anker.
Click to expand...
Click to collapse
Should I buy Anker or OEM ?
rushfunn said:
Should I buy Anker or OEM ?
Click to expand...
Click to collapse
For me, Anker is at least as good as OEM if not better, as well as cheaper. Answer your question?
I am using the same ROM. My battery life isn't very good either..!
estallings15 said:
For me, Anker is at least as good as OEM if not better, as well as cheaper. Answer your question?
Click to expand...
Click to collapse
Yupp, it does, thanks. I'll give it a try to Anker and see ... This ROM is so sweet ...
mokee92 said:
I am using the same ROM. My battery life isn't very good either..!
Click to expand...
Click to collapse
I know, but this ROM is so awesome to leave ... But its good to know that I'm not alone
Hi all,
I have a MT4G running cm10.1. Prior to this, I was running toasted marshmallow's latest build.
Over the last week or so, I've been having some real problems with the phone. While in my pocket, it will discharge rapidly and switch itself off within a couple of hours of being off the charger. Other times, it will read a high battery percentage (80-90%) but will switch itself off randomly. When I go to switch it back on, the battery percentage reads 1%, and it switches off again soon after. If I try to switch it on again, it doesn't make it through the load process before switching off. It seems like the battery is completely discharged.
But (and here's the weird part): if I stick it on the charger, give it a few minutes, then switch it back on, the battery percentage will read 58% (both times I've checked this, it was 58%), and will then charge from there. It stayed on for the rest of the day when I took it off the charger (at 65% charge).
Edit: I though this might be a battery contact/connection problem, but shaking the phone / playing with the battery cover doesn't seem to bring it on. To be safe, I used a pencil eraser on the contacts and have a small piece of card in between the battery cover and the battery, to give more support to the battery. No reboots so far, but it's only been an hour or so.
So:
- is my battery dead, and can this be fixed by a replacement?
- is battery calibration needed (I know this is a controversial question; the consensus seems to be it does nothing)
- Is this more likely a hardware problem with the phone? I have noticed that the charger microusb cable does seem a looser fit compared with before, but since the battery was still charging I figured it wasn't a problem
Thanks for any help troubleshooting this!
Lee
Sounds like your battery is done...replacements are cheap...
What he^^ said.
Anker batteries are good and very inexpensive. Also, "calibration" does nothing. Just flash ROMs on a full charge and call it good.
estallings15 said:
What he^^ said.
Anker batteries are good and very inexpensive. Also, "calibration" does nothing. Just flash ROMs on a full charge and call it good.
Click to expand...
Click to collapse
Thanks for the replies - new battery on its way.
Lee
ROM
lee_alkureishi said:
Thanks for the replies - new battery on its way.
Lee
Click to expand...
Click to collapse
Try to constantly check your what things are draining your battery, sometimes it could be the phone's data or it could be the sleep(idle) state of the phone, it could be many things. I tend to be always aware, check and read all the possible outcomes for the battery drain. For me is usually maintaining the data on my phone turn ON.
I have been having the same issue with my 10.1 ROM. It's not that old of a battery either so I don't think that it is dead; is there any other advice other than purchasing a new battery?
HOOAH.Brown said:
I have been having the same issue with my 10.1 ROM. It's not that old of a battery either so I don't think that it is dead; is there any other advice other than purchasing a new battery?
Click to expand...
Click to collapse
Switch ROMs and compare battery life? Also, check out Better Battery Stats. It can help you track down what causes drain.
estallings15 said:
Switch ROMs and compare battery life? Also, check out Better Battery Stats. It can help you track down what causes drain.
Click to expand...
Click to collapse
This is the third ROM (starting from an ICS ROM) and the battery life is the same so I know it's not the ROM. Thanks for the app recommendation. I am afraid that I might have a defective battery.
As it turns out my battery has now started to leak and swell. I am going to purchase a new Anker battery. Thanks for all the assistance.
I need some suggestions on how to calibrate the battery on my n4. It got miscalibrated when I did the update 4.2 to 4.3 and I haven't been able to calibrate it since then, a week ago.
I tried using battery calibration from the store but it didn't work, I tried charging the phone from 0 to 100 and it didn't work.
I remember I had the same problem 2 years ago with my Atrix and I solved it by wiping the battery stats from recovery, but now twrp and Cwm removed this feature and I don't know how to solve my problem.
Maybe it would help flashing all back to stock with the toolkit?
If you have any suggestions I'd really appreciate it.
http://forum.xda-developers.com/showthread.php?t=1460553
qoolix said:
http://forum.xda-developers.com/showthread.php?t=1460553
Click to expand...
Click to collapse
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?
Elwood_It said:
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?
Click to expand...
Click to collapse
Either faulty battery or do the following:
1.Completley discharge N4
2.Charge fully(+2 hours after hitting 100&) WITHOUT disconnecting from the charger.
3.Repeat for better results.
Sent from my Nexus 4 using xda app-developers app
failly said:
Either faulty battery or do the following:
1.Completley discharge N4
2.Charge fully(+2 hours after hitting 100&) WITHOUT disconnecting from the charger.
3.Repeat for better results.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the answer. Should I carghe while it's off or on or it doesn't matter?
Elwood_It said:
Thanks for the answer. Should I carghe while it's off or on or it doesn't matter?
Click to expand...
Click to collapse
To be honest, I don't know.
But if I would be you I would just let it charge while it's off(So the big ass white battery icon).
Let me know if you got your battery sorted after the method I posted!
Elwood_It said:
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?
Click to expand...
Click to collapse
You mean off as in all the way off? If so, then that ~3% is being used when the phone boots.
korockinout13 said:
You mean off as in all the way off? If so, then that ~3% is being used when the phone boots.
Click to expand...
Click to collapse
I've had many phones, and none of them lost charge during the boot, at least not that many. I think that's the clear sign of battery miscalibration, I've had this problem before with another phone. Besides that, I've had a strange behaviour of the battery, for example I saw it lose 4% in 1 second, from 66 to 62 in a blink of an eye.
Elwood_It said:
I've had many phones, and none of them lost charge during the boot, at least not that many. I think that's the clear sign of battery miscalibration, I've had this problem before with another phone. Besides that, I've had a strange behaviour of the battery, for example I saw it lose 4% in 1 second, from 66 to 62 in a blink of an eye.
Click to expand...
Click to collapse
It's not that it's losing charge quickly, it's just the OS (or the hardware itself) doesn't always do the best job of reading it. There's not much you can do about that, and it's really not an issue unless you make it so by staring at your battery level all day.
korockinout13 said:
It's not that it's losing charge quickly, it's just the OS (or the hardware itself) doesn't always do the best job of reading it. There's not much you can do about that, and it's really not an issue unless you make it so by staring at your battery level all day.
Click to expand...
Click to collapse
Hi,
I'm having a similar issue. Phone rebooting to weird battery levels (not the %age it shutdown at).
Phone shutting down at 31% battery and rebooting to 0%.
I tried charging only to 100% yesterday with the phone ON.
Do I have to charge it even after it's charged to 100%?
failly said:
To be honest, I don't know.
But if I would be you I would just let it charge while it's off(So the big ass white battery icon).
Let me know if you got your battery sorted after the method I posted!
Click to expand...
Click to collapse
I tried charging through the night and then discharging it completely and charging it completely again. I also tried deleting the batterystats file (even though I know it doesn't do anything)
So what do you suggest I should do? Get the phone replaced or get the battery changed?
I live in India and the phone is from Canada, so replacing the phone will take some time but I can get the battery replaced for around $20
Also my nexus is also showing +ve mA values while it's not charging, and the values are absolutely crazy, +268, +168, +1171 (in batter monitor widget)
Please tell me what I should do.
japmeet said:
I tried charging through the night and then discharging it completely and charging it completely again. I also tried deleting the batterystats file (even though I know it doesn't do anything)
So what do you suggest I should do? Get the phone replaced or get the battery changed?
I live in India and the phone is from Canada, so replacing the phone will take some time but I can get the battery replaced for around $20
Also my nexus is also showing +ve mA values while it's not charging, and the values are absolutely crazy, +268, +168, +1171 (in batter monitor widget)
Please tell me what I should do.
Click to expand...
Click to collapse
Before you replace the battery try to disconnect the battery's flex cable and reconnect it [after you charge to device to 100% and turn it off of course] check if its 'reset' the battery.
So here's the thing, I've been flashing ROM countless time and got to the point where I stuck for one ROM (in a good way). But whenever I charged my phone while turned off to a 100%, when I turned it back on the battery is not 100%, more precisely 87%. Do you think it's the battery itself, the OS, or the entire hardware?
Thanks.
Skcyte said:
So here's the thing, I've been flashing ROM countless time and got to the point where I stuck for one ROM (in a good way). But whenever I charged my phone while turned off to a 100%, when I turned it back on the battery is not 100%, more precisely 87%. Do you think it's the battery itself, the OS, or the entire hardware?
Thanks.
Click to expand...
Click to collapse
mostly battery fault
akshay.v said:
mostly battery fault
Click to expand...
Click to collapse
Okay cool thanks