Develop Bugs

battery reverse charging

Hello,
I have a HTC Blueangel with a somewhat novel approach to charging its battery.
When connected to the USB, the charge meter continuously _decreases_, something close to 1% in 5-6 seconds. When the meter reaches 0%, it stays there for a short while (20-30 seconds), then jumps back to whatever the real charge is. And start decreasing again. After the regular several hours, the battery gets fully charged as normally should.
The charging used to work normally a while ago, and I cannot figure out what (or when) did I do to make it act this way. Initially I thought it might be a software problem, tried a hard reset, but it's still happening.
It's running WM2003 (1.42), with radio 1.15. BlueTooth, IR and wifi are disabled, screen brightness is set to min, etc. so I cannot understand what is going on.
Normally it should not be much of a deal, because the battery really has charge in it. But the system believes the indicated meter, so when going really low on the battery meter, it decides to disable stuff like phone, SD slot, etc. trying to conserve an apparent lack of charge.
If I disconnect the USB cable, the charge meter appears to drain at the normal rate (regardless of what the _real_ charge is). All other battery-conserving features appear to function normally -- notifications at 20 and 10%, shutting down when empty, etc.
I do not have a wall charger, so I could only test USB charging. I do not have another BA available to test just the battery.
Any ideas as to what might be going on? Is it possible to fix it?
Thanks,
-Daniel

lol sounds annoying........what about reinstalling wm2003???

i am having a similar problem - using the usb charger while in the car seems to discharge the battery. nothing seems to fix battery drain problem - but on the cradle it is fine. let me know if you find anything on this one

Charger Cutoff?

I've just upgraded to an HTC Desire after many years with a WM device.
I have noticed something unusual when charging the phone. When the battery reaches 100% it seems to stop charging and the battery starts draining. This means that by the time I wake up the phone has lost between 3 & 10% charge depending on tow early I want to bed.
The green charge full indicator stays on even as the charge drains.
It will not start charging again until unplugged and plugged in again.
Is this an Eco friendly charging feature that yactually stops the charger drawing power?
Has anyone else noticed this?
It is mostly a good thing, the only down side is on heavy usage days my battery just scrapes through 14hrs use and the extra few percent charge helps.

http://androidforums.com/htc-desire/65108-battery-not-charging-fully.html
http://androidforums.com/htc-desire/61467-charges-90-stops-sometimes.html
http://forum.xda-developers.com/showthread.php?t=662248
Same strange behaviours with mine...

luminouche said:
http://androidforums.com/htc-desire/65108-battery-not-charging-fully.html
http://androidforums.com/htc-desire/61467-charges-90-stops-sometimes.html
http://forum.xda-developers.com/showthread.php?t=662248
Same strange behaviours with mine...
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Click to collapse
I mist say there are some interesting ideas in those threads. Will see what else is said on the matter.

[Q] Phone Charging Question

Problem:
I have been reading as many posts as possible but I haven't come across my exact situation. I apologize if this is posted elsewhere.
I am running a rooted Dinc using CyanogenMod 7.0.3. If I charge the phone while it's powered on, the amber led turns green as soon as the battery indicator hits 100%. However, recently I've noticed that if the battery is close to being full, say 90%, and i power it off to charge it, it actually takes longer for the amber led to turn green. It might take 20-30 minutes longer.
I've also noticed the amber light turn green when the indicator only showed 92%. In trying something different I also noticed that if I charge the phone while it's powered on, then turn the phone off, the led goes amber and takes another 20 minutes to turn green again (I might be accidentally bump charging in this example but I'm not sure).
Attempted Solution:
I've read that a battery recalibration might help. I tried one method that requires the battery to be pulled after a full charge, but my phone won't boot while plugged into the wall if there's no battery. Then I tried booting into recovery, where I found an option to reset the battery stats... which I just did about 5 minutes ago.
I'm going to see how things go tomorrow, but is this normal? Has anyone else experienced these things? Thanks.

Logan176 said:
Problem:
I have been reading as many posts as possible but I haven't come across my exact situation. I apologize if this is posted elsewhere.
I am running a rooted Dinc using CyanogenMod 7.0.3. If I charge the phone while it's powered on, the amber led turns green as soon as the battery indicator hits 100%. However, recently I've noticed that if the battery is close to being full, say 90%, and i power it off to charge it, it actually takes longer for the amber led to turn green. It might take 20-30 minutes longer.
I've also noticed the amber light turn green when the indicator only showed 92%. In trying something different I also noticed that if I charge the phone while it's powered on, then turn the phone off, the led goes amber and takes another 20 minutes to turn green again (I might be accidentally bump charging in this example but I'm not sure).
Attempted Solution:
I've read that a battery recalibration might help. I tried one method that requires the battery to be pulled after a full charge, but my phone won't boot while plugged into the wall if there's no battery. Then I tried booting into recovery, where I found an option to reset the battery stats... which I just did about 5 minutes ago.
I'm going to see how things go tomorrow, but is this normal? Has anyone else experienced these things? Thanks.
Click to expand...
Click to collapse
The kernel and the hardware charge it in different ways. That's why there are differences. DInc is famous for ending charging before the battery reads full. There's already a thread on that. there's not much point in getting hung up on how that thing charges. Be glad yours isn't like mine; a battery that discharges faster than it charges. Seriously.

loonatik78 said:
The kernel and the hardware charge it in different ways. That's why there are differences. DInc is famous for ending charging before the battery reads full. There's already a thread on that. there's not much point in getting hung up on how that thing charges. Be glad yours isn't like mine; a battery that discharges faster than it charges. Seriously.
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Click to collapse
Before I had a fast charge kernel (thanks Chad!) Using GPS with the stock VZW car charger, my battery would go down while it was on the charger!
Sent from my ADR6300 using XDA App

On AOSP roms, the LED will turn green at 90% and charge slower from 90%-100%. Perfectly normal, and I think on any rom it will charge slowly from 90%-100% to protect the battery.
The battery will charge further when you turn the phone off, what you described is what's known as bump charging. If you do this, you should notice a slower drop from 100%-90% than usual, because the battery is charged to a "true" 100%. When the phone is on and charging (above 90%), it simply keeps the battery above 90% even if it says it's fully charged, and this is why the inc is notorious for the quick 100%-90% drop.

If you do a bump charge and then clear the battery stats and use the battery calibration app will you need to bump charge again or will it know what the true 100% capacity is and keep the droid lasting longer. Not noticing much of a diffrence when i went from 1300 battery to a 1500. May get a bigger batter that'll fit the stock battery door cause I'm trying to get the best battery life i can get.

Thanks guys, I appreciate the help. I think something else that has thrown me off is that before I rooted the phone I wasn't able to see the actual battery percentage in numbers... all I could see was the battery icon. Things are now making more sense.
After recalibrating my battery I bump charged the other day and I was able to get almost 2 days out of my phone on light usage. Without bumping, I was able to end my day yesterday at 50% under my normal usage. Which is a noticeable improvement. Normally I end the day with about 10-20%. The big test will be once I go back to work next week. The cell reception is real spotty in my classroom, which I know makes the cell radio work harder.
Thanks again.

I found a lot of answers I was having about battery charging in this thread:
Your battery gauge is lying to you (and it's not such a bad thing)

phone not charging and random blinking light

Is anyone having issues with charging and blinking orange light goes on? Sometimes even when the phone is unplugged the charging battery is still showing and solid orange light. I have tried multiple cables and still have same result. My phone is completely stock with latest update.
I know there was a huge issues with the charging port before; do you think that could be the reason? Also charging time have been extremely slow, i think i went from 10% to 60% in like 8+ hours of charging, is this normal? Any users with similar issues can give some feedback would be appreciated. I hate not being able to swap battery and this is really frustrating me. Thanks

[Q] ebay magnetic chord acting up

this ebay bought magnetic chord i have lights blue led when its plugged in, and goes red when charging. however, now whenever its charging on my new z3c, it randomly fluctutates between red-blue red-blue although phone screen still shows its charging. any idea whats wrong? also, my phone is losing charge quicker since i charged with this chord (been only twice uptil now.) any suggestions? is it the phone or the chord only?
also, can generic chords actually spoil or harm the phones battery life? the first time i charged my z3c, it was with the inbox USB sony charger, and it lasted me a 10 hour night without a single % drop in battery on standby (though wifi and mobile data were both off, and i had no pending notifications in the am). Whereas, since charging with the generic magnetic chord, the battery's been dropping on standby at about 2% an hour. during intermittent screen checking, and dropped 3% last night (again wifi and data were off and no new notifications came in.)?? :-/ please help. thanks

Z3c_SK said:
this ebay bought magnetic chord i have lights blue led when its plugged in, and goes red when charging. however, now whenever its charging on my new z3c, it randomly fluctutates between red-blue red-blue although phone screen still shows its charging. any idea whats wrong? also, my phone is losing charge quicker since i charged with this chord (been only twice uptil now.) any suggestions? is it the phone or the chord only?
also, can generic chords actually spoil or harm the phones battery life? the first time i charged my z3c, it was with the inbox USB sony charger, and it lasted me a 10 hour night without a single % drop in battery on standby (though wifi and mobile data were both off, and i had no pending notifications in the am). Whereas, since charging with the generic magnetic chord, the battery's been dropping on standby at about 2% an hour. during intermittent screen checking, and dropped 3% last night (again wifi and data were off and no new notifications came in.)?? :-/ please help. thanks
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Click to collapse
i am having a similar experience using what i think is the same cord...i bought mine on ebay as well and it has the same blue/red led light...for me the color flickering seems to start at 90%+ when charging
i have also experienced worse battery drain when idle...i had a small suspicion that it was related to the charger but i also have different magnetic one and it seems to offer similar battery results...so its might just be magnetic charging altogether...i also read that some people believe it is the firmware update that caused the battery to drain faster...so im not exactly sure i can blame it on the charger
i have not done charge cycle from low battery to full with the oem charger in quite some time...maybe i will do that and see if the battery drains just as fast...maybe you could give it a try as well and see if it makes a difference (hopefully the magnetic charging hasn't already caused "permanent" damage)

yup, same flickering LED light here, mainly after about 90% charge. I've not noticed a difference in battery life betwen USB and mg or between different mag cables (I use two ebay mag cables and one Magnector x2). I do notice that one of the ebay cables charges a lot slower than the others, however.

Call me crazy, but I think that the flickering is normal. The flickering happens while the LED is trying to transition from Red to Blue, it should display a colour in between those two, but since there are only 2 LEDS (or 1 led with only two colors) aka two available colors, it will flicker because it's trying to do something that's impossible (trying to display a color beside red/blue). Mine does the same, but it doesn't bother me since it's supposed to do that. I don't have any battery issues.
Sent from my D5803

Dsteppa said:
Call me crazy, but I think that the flickering is normal. The flickering happens while the LED is trying to transition from Red to Blue, it should display a colour in between those two, but since there are only 2 LEDS (or 1 led with only two colors) aka two available colors, it will flicker because it's trying to do something that's impossible (trying to display a color beside red/blue). Mine does the same, but it doesn't bother me since it's supposed to do that. I don't have any battery issues.
Sent from my D5803
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Click to collapse
I think you're not far off. I have the same cable probably, and it starts flickering in the mid-90%s. It probably has to do with the device reducing the charge drawn from the wall plug as it gets close to full battery.

Could you guys provide link to those chords?