Develop Bugs

[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.
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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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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)

Force battery to fully charge

So I've noticed for a while now that when I disconnect my dInc after charging, the battery will drain almost 20% within the first couple hours (almost no use at all). I suspect that the battery isn't being fully charged when the green light first goes off. After I plug/unplug the cable and charge a couple more times, it holds a higher charge more consistently. I've read this is due to the phone not wanting to over-charge the battery, however in the case of my battery (Seido 1750), it doesn't even fully charge.
Is there any way (aside from the plug/unplug scenario) to fully charge the battery in one go? An app maybe?
My phone is rooted.
Thanks.

The battery could be losing its ability to hit its capacity. In other words its wearing down.
Nothing will fix it. There are no apps to bump charge.
Sent from my Galaxy Nexus using Tapatalk 2

Get an external charger for your battery and couple of extra batteries. I get best result not charging in the phone and rotating batteries.
Sent from a HTC Droid Incredible running CM 10.1

Charge the phone powered on until the light turns green. Leave it plugged in but turn it off. Leave it plugged in, off for about 20 minutes, you will notice the light is still orange even though its already "charged." Once the light goes green again, unplug it and power it up. When I do this, my battery will go for 3 or 4 hours before it hits 90 percent with my regular use.

el6006 said:
Charge the phone powered on until the light turns green. Leave it plugged in but turn it off. Leave it plugged in, off for about 20 minutes, you will notice the light is still orange even though its already "charged." Once the light goes green again, unplug it and power it up. When I do this, my battery will go for 3 or 4 hours before it hits 90 percent with my regular use.
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Just be aware that bump charging as it's called, can reduce the life of your battery over time.

[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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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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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?

[Q] Battery Query Please

I have had my Galaxy Tab S 10.5 for about a month. My battery seems to deplete very fast, about 10% every 30 minutes. I only use the tablet for reading books on Kindle, looking at my emails, and reading the news. The battery settings show that 57% is being used by the screen, 29% by Touchwiz, 5% by the Android System, and lesser amounts by other sources. I have my display settings set to Automatic Brightness and Adaptive Display.
I understood that I could expect about 8 hours battery life but I am lucky to get 5 hours. I have not watched videos or played games on the tablet as yet. I was wondering if this battery life is normal or should I be expecting more.
I usually start recharging once the battery shows around 30% and it then takes about 4 hours to charge to 100% again.

Auto Brightness and Adaptive Display take up power constantly checking ambient light and making adjustments. Better off disabling both and setting the brightness manually, I have mine set on Amoled Cinema and a brighness of about %20 - %25, it's pretty easy to read indoors at those settings.
Another thing, the more light colours on the screen the more current the display uses, amoled displays are like that, so your better off having a dark background and light text than the reverse, I always use the dark or black theme options in apps that give you the choice.

Thank you for your reply. I have turned off auto brightness and adaptive display. I agree the Cinema setting looks fine. Thanks again for your help.

sphinx5779 said:
Thank you for your reply. I have turned off auto brightness and adaptive display. I agree the Cinema setting looks fine. Thanks again for your help.
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Typically, it takes about 4-5 hours to charge. To me I think lollipop charges a bit faster.

DUHAsianSKILLZ said:
Typically, it takes about 4-5 hours to charge. To me I think lollipop charges a bit faster.
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Annoyingly I have not got lollipop. I have tried to update the system manually but it says the tablet is up to date. Why is it some have it and other do not?

I found this battery calibration guide, it says it`s for phones but it will work for tablets too.
John.
You can calibrate the battery like this before you decide to buy a new one
Fully charge the battery with the phone on and when the phone is fully charged, unplug the charger and turn it off
When your phone is off, plug it into the charger and let it charge to 100% again. The green LED light will indicate when this is done.
Next unplug the charger, turn on your phone and set the option to ensure that your screen doesn’t turn off, if you have this option. Then reconnect to the charger and wait for it to charge again to 100%.
Once charged to 100%, unplug the charger again and do not charge until the smartphone turns itself off after reaching a 0% battery level. Once off, fully charge it again and it should work properly. The screen setting can put back to normal again (meaning turn off after a certain amount of time).
From AndroidPit
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Tinderbox (UK) said:
I found this battery calibration guide, it says it`s for phones but it will work for tablets too.
John.
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Thank you, I will try that. Thanks again.

[Q] Charge Green Light Not 100%?

I always turn off the phone before charging, but this phone does not have a number percent on the display when charging, so I wait until the indicator light is green, but every time I turn on the phone, it is actually around 97%, not 100%
This messed up my attempts to calibrate the battery, so can someone explain how to tell when it charged to 100% when there is no percent number on the screen when charging...

Charge it while it's on till it's 100%

i have read that charging while on is not good for the battery, but all I want to know is does the green notification light mean it is 100%? so is something wrong with my phone that it is only at 97%?

With modern batteries, it won't make that much of an impact on the battery if you charge it while it is on or not. Because the phone is off, it will charge faster however.