A strange thing happened to me: last night I turned off the phone with about 60% of charge remaining, this morning I turn it on and I find 13%, after a reboot it gave me 50% ...
What can be the cause?
I found that here:http://forum.xda-developers.com/showthread.php?t=755903&page=33
You can try it :
This is the procedure that works for me:
The following steps should significantly extend the battery life on your phone:
1. Let the battery drain close to empty (5% or less).
2. Connect the phone to the charger (AC or USB, USB is better) while powered on and allow the phone to charge until the notification LED is green, indicating the device is fully charged and untill the voltage is at least 4187mV. A higher voltage like 4192mV or more is even better. Use a tool like Overcharged or Battery Indicator to monitor this. Note that a green notification LED does not automatically mean that the voltage is good too.
A higher voltage means in practice that it will take longer to discharge, a lower voltage means that the battery will discharge a lot quicker! The difference can be quite significant!
3. Disconnect the phone from the charger and power it off.
4. Reconnect the phone to the charger while powered off and allow the phone to charge until the notification LED is green. The notification LED may turn green immediately. Leave it on the charger for another hour.
5. Disconnect the phone from the charger and power it on.
6. Once the phone is powered on completely (has restarted fully) wait 2 minutes and power it off again.
7. Reconnect the phone to the charger while powered off and allow the phone to charge until the notification LED is green. The notification LED may turn green immediately. Leave it on the charger for another hour.
8. Leave the phone on the charger and reboot into the ClockWorkMod recovery menu and wipe the battery stats via -> Advanced -> Wipe battery stats.
9. Disconnect the phone from the charger, restart the phone and start using it as normal.
From then on always let the battery drain close to empty (5% or less) as often as possible and then charge untill the voltage is at least 4187mV. A higher voltage like 4192mV or more is even better.
Normally you will have to do this only once. However, on all Android ROMs, if you flash a ROM while charging or during the first boot screen on, first boot mucks up the levels Android thinks the phone is at, i.e. Android will think you’re at 100% when maybe you’re only 90% or whatever. So in theory you will need to repeat this every time you flash a ROM while charging!
Better is to make sure the battery is charged before you flash a ROM and just remove the USB/charge cable before you flash a ROM. Put it back in (if you must) after the first boot screen (when the custom screen or whatever shows).
Thank you, I'll try it
Edit: thanks to this post, my problem has been solved. Thanks!
So last night I went from stock motorola 2.2 to this wonderful-seeming version of CyanogenMod on my UK milestone - the install went flawlessly, but now I have a problem - my battery is not charging at ALL.
While the phone was on last night after I charged it, it was plugged in, first to my PC and then to the wall socket. In both cases, the battery indicator had a ? (question mark) on it.
I thought it might have been some weirdness with battery calibration so I left it and plugged the phone in from the wall to charge overnight. This morning, my phone was telling me to connect my charger (despite it being plugged in) and on removing the power cable, it died due to no battery power left within 10 minutes.
While plugged in from the wall, the battery indicator comes up but again just contains a ? on it. The little white light next to the power socket never lights up.
If I plug the phone in to my PC via USB then if the handset is OFF, the white light comes on and around 10 mins later it gets enough juice to boot up. The problem is that when the CM7 software starts, the little white light disappears, the phone stops charging despite the cable being present, and it then dies 2 minutes later.
I know the battery is fine because it was perfectly fine before I installed CM7.
Anyone else experienced this problem and/or know how to fix it?
One thing I did manage to do before it died was install a battery calibration app that I found on xda-developers - this told me that the battery was running at 3267 mV - any idea if that's good or bad?
(and yes, I'm using precisely the same cable/charger I was using before I put this version of CM7 on, so I know they are fine - they charge a friend's SGS with no problems)
thatbloke83 said:
So last night I went from stock motorola 2.2 to this wonderful-seeming version of CyanogenMod on my UK milestone - the install went flawlessly, but now I have a problem - my battery is not charging at ALL.
While the phone was on last night after I charged it, it was plugged in, first to my PC and then to the wall socket. In both cases, the battery indicator had a ? (question mark) on it.
I thought it might have been some weirdness with battery calibration so I left it and plugged the phone in from the wall to charge overnight. This morning, my phone was telling me to connect my charger (despite it being plugged in) and on removing the power cable, it died due to no battery power left within 10 minutes.
While plugged in from the wall, the battery indicator comes up but again just contains a ? on it. The little white light next to the power socket never lights up.
If I plug the phone in to my PC via USB then if the handset is OFF, the white light comes on and around 10 mins later it gets enough juice to boot up. The problem is that when the CM7 software starts, the little white light disappears, the phone stops charging despite the cable being present, and it then dies 2 minutes later.
I know the battery is fine because it was perfectly fine before I installed CM7.
Anyone else experienced this problem and/or know how to fix it?
One thing I did manage to do before it died was install a battery calibration app that I found on xda-developers - this told me that the battery was running at 3267 mV - any idea if that's good or bad?
(and yes, I'm using precisely the same cable/charger I was using before I put this version of CM7 on, so I know they are fine - they charge a friend's SGS with no problems)
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Click to collapse
Try plugging the phone into the wall charger, without the battery. Try and boot it up and let it boot. Once it's booted up, give it a bit and try and put the battery in and leave it to charge.
What happens if you turn off you phone and plug it in a wall charger? If the problem isn't in your battery it will charge fully.
When you phone comes up, try to disable the 1% battery steps in settings. I got a problem with it, and after disabled/enabled it worked fine for me.
Hope this helps.
On plugging it into a wall charger, the phone comes up with its special battery charging screen (i.e. a fullscreen battery level indicator) - no amount of pressing the power button seems to get it to boot properly (with or without the battery).
I'll see if I can get in and get rid of the 1% steps thing later, thanks for the suggestion
afonsolage said:
What happens if you turn off you phone and plug it in a wall charger? If the problem isn't in your battery it will charge fully.
When you phone comes up, try to disable the 1% battery steps in settings. I got a problem with it, and after disabled/enabled it worked fine for me.
Hope this helps.
Click to expand...
Click to collapse
Dude, that was PERFECT.
Managed to get enough juice into the thing to get into the menu for a moment and was able to disable the 1% battery steps option - soon as I touch that tickbox, the battery indicator switches from a ? to the charging symbol and the phone starts charging. Thanks a million!
Nop dude, you are welcome
It happened about a week after I've changed a cracked screen - phone would not charge neither by USB cable nor in dock. I am able to charge battery separately, in the dock, I've got two of them, but not in phone.
When I power it on with a freshly charged battery it would show something like 6% or 4% and then slowly go up to full. If I connect a charger the percentage from let's say 45 would jump to 65 and back again when disconnected. Red light does not turn on.
What's weird is that Settings menu "Battery" tab is gone. As if the phone doesn't have one!
Any ideas what's happening?
Note I have replaced the battery (battery worked but the unit wasn't charging which tells me bad cable.) Today I had gotten a cable after a long dry spell of not having any money to spare. Plug it in. Unit light turns green, then orange, shows charging icon, then screen blinks and shows empty battery + wall plug Icon. Then turns off.
I suspect the battery is just so dead that it isn't registering as charged. Took the unit apart to plug the charger in with the battery unplugged which caused a red light and blank screen. Plugged battery back in. Same behavior as before.
Do i just keep flicking it on whenever it turns off to hope enough charge trickles in so the internal controller perks and goes 'oh wait I need to do something'?
Edit: Turns on now but it says it's at 11% and not charging. Do i flash cyanogenmod and hope thatdoes something?
When i plug in my phone, the battery percentage increases,
but no charing led and no charging symbol wil pop up.
Even when powered off, The battery screen won't show up.
It is charging but not indicating. Any solve?