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hi, I'm having this problem with every ROM I try... led indicator gets green when battery reach 90% , how can be corrected? tried wipe battery status and nothing.
corvux360 said:
hi, I'm having this problem with every ROM I try... led indicator gets green when battery reach 90% , how can be corrected? tried wipe battery status and nothing.
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Give a spin to the ROM I am on and try. Mine turns green only at 90%.
Also, do u have any LED color changing apps loaded that are getting loaded when u restore with TiBu?
I'm 99% sure this is normal operation.
Does it continue charging to 100%? Or does it stop at 90%?
Mine changes to green at 90% also. I just assumed it was normal.
Sent from my Inspire 4G using XDA App
I've only noticed the 90% green on CyanogenMod, running LeeDroid right now and the LED only turns green at 100%. I'm pretty sure this is a bug. In my opinion if this is intended to be a feature, there should be different notifications based on almost/fully charged. Maybe flashing at 90%, solid at 100%?
this is on most roms but its not a bad thing, its not like your battery life is bad its just showing when its basically done charging
It keeps charging to 100%. If you doubt it download current widget. It will tell you exactly how much power is being pushed to the phone.
Sent from Inspire 4G using Morse code.
I'm on CM7 and my LED turns to green at 90% as well. Is this something you are seriously concerned over? It's an LED color, as long as it continues to charge to 100% who cares lol.
As others have said, it is normal for the light to go green at 90%. Every ROM I've tried (except for LeeDroid) does the same thing, and from what I recall even the stock HTC ROM switches to green at 90%, which is probably the basis for most of the custom ROMs doing the same thing.
My guess as to why the light goes green at 90% is because that last 10% of charging time takes a while (due to an increase in charge trickling) and the average consumer would be waiting and waiting for their charging light to go green if it were set to 100%. The ROMs/kernels are designed to balance the convenience factor with a little loss in charged capacity.
As the battery charge gets closer and closer to 100%, the electrical charging current being sent to the battery decreases more and more. This is best practice when charging a Li-ION battery to help prolong its lifespan. In our Inspire phones I have noticed (using Battery Monitor Widget set to 1 minute intervals) that during a typical charging cycle, when the battery is between 1% and 59% the kernel or the ROM (not sure which one controls charging; my guess is the kernel) allows the battery to receive a full charge. Using the stock HTC AC adapter, this equates to around 820mA with the screen off. Once the battery reaches 60%, the software will start to throttle back the charging a little bit at a time - the higher the battery is charged, the less current is applied. By the time you hit the 90% mark, the battery is only being fed with around 100mAH of power and is still decreasing. So that last 10% takes a little while.
My stock Inspire doesn't go green until it hits 100%. I tested it twice to make sure. The last 10% does take a little longer, but still no green until charging is completed.
Sent from my Desire HD using XDA App
Try a battery calibration
Sent from my Inspire 4G using Tapatalk
Mine goes green at 90% while the phone is on. If charging and turned off it goes green at 100%. This is both when I was stock as well as now on MIUI
Posted from MIUI Inspire 4G
Quincux said:
Try a battery calibration
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What? Please explain how this is done.
henrybravo said:
As others have said, it is normal for the light to go green at 90%. Every ROM I've tried (except for LeeDroid) does the same thing, and from what I recall even the stock HTC ROM switches to green at 90%, which is probably the basis for most of the custom ROMs doing the same thing.
My guess as to why the light goes green at 90% is because that last 10% of charging time takes a while (due to an increase in charge trickling) and the average consumer would be waiting and waiting for their charging light to go green if it were set to 100%. The ROMs/kernels are designed to balance the convenience factor with a little loss in charged capacity.
I
As the battery charge gets closer and closer to 100%, the electrical charging current being sent to the battery decreases more and more. This is best practice when charging a Li-ION battery to help prolong its lifespan. In our Inspire phones I have noticed (using Battery Monitor Widget set to 1 minute intervals) that during a typical charging cycle, when the battery is between 1% and 59% the kernel or the ROM (not sure which one controls charging; my guess is the kernel) allows the battery to receive a full charge. Using the stock HTC AC adapter, this equates to around 820mA with the screen off. Once the battery reaches 60%, the software will start to throttle back the charging a little bit at a time - the higher the battery is charged, the less current is applied. By the time you hit the 90% mark, the battery is only being fed with around 100mAH of power and is still decreasing. So that last 10% takes a little while.
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Well said HenryBravo.
The most efficient way it seems to calibrated your battery, in my opinion, is to first download current widget. Go to widgets and add the current widget widget to your screen. Plug in your phone, and leave it plugged in until your m/a reading says zero or 0m/a. You will see one hundred percent charged on the widget, tap on the 100 and a smaller number (anywhere from 30m/a on down will be present) it is this number that shows how much charge your phone is still drawing. Even though it says 100%, like HenryBravo stated, It is STILL drawing current, and until the widget reads 0m/a, is not fully charged. When you reach the coveted 0m/a mark, open file expert (or corresponding app) and go to the data folder. Then system. Then batterystats.bin - delete the file and reboot with phone plugged in (until reboted, then unplug) and your system will recreate your batterystats.bin file and have the proper value for a full charge. Also, this can be done by booting in to recovery, going to advanced, wiping battery stats, and rebooting. There are other calibration methods I have read of, which involve fully charging, depleting, charging again, etc... I have found this method yields the same results for me. Not all phones are the same and some phones yield various results with certain procedures, I am not sure if the battery calibration falls in this Category or not. Good Luck and hope it helps!!
-MyPocketWizard-
When I'm running CM7 this happens to me too. But on Cleardroid ROM it stays orange and wont turn green until 100%. I think its just part of the Rom, nothing to worry about.
corvux360 said:
hi, I'm having this problem with every ROM I try... led indicator gets green when battery reach 90% , how can be corrected? tried wipe battery status and nothing.
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This is normal operation. It's not a bug. When your phone reaches 90%, that is when it resets the calculation of how long your phone has been on/off the battery.
Quoted directly from the phone manual, "As the battery is being charged, the notification LED shows a solid red light. The light turns to solid green when the phone is fully charged". Shouldn't really matter though, as long as the phone charges to 100%.
Sent from my Desire HD using XDA App
custom roms are designed to show green light at 90% charged battery.. unfortunately...
Hey I was just wondering if its bad for the calibration of the battery to leave the tablet docked in the keyboard all the time?
I dont use the tablet while its charging, i usually always charge it to 100% (while docked), and let the battery drain out completely (while docked) before charging it back up again.
Just don't want to mess up how the battery calibrates or anything (so in the future whenever i use the tablet by itself it won't drain out quickly due to bad calibration)
As long as you charge it to 100% and then disconnect the AC adapter, you won't have problems.
Since the TF has two batteries (one on the tablet and one on the dock), it will manage them both to drain one first and then the other.
The thing that messes up battery life is if you continuosly charge it despite not being drained. Also it isn't wise to let the TF die on battery and then recharge. Recharging the tablet when it asks for it (19-15% of battery remaining) is a good practice.
Cool thanks for the tips, this is my first Tablet (but my fourth android device), and was wondering because i noticed the dock drains out first and then the tab starts draining, but as the tablet is draining, it slowly trickle charges the dock at the same time (so it can still be used).
ex.
TF = 100%
Dock = 100%
then
TF = 98-0%
Dock = 0-3% (once the dock hits 0%, it starts charging off the TF but just enough to use it until the tablet dies)
PS. I created a sugar sync account from your referral so you could get more space lol
Sorry to revive an old thread... but for clarification, should you let both the dock AND the tablet drain before recharging, or is it ok just to recharge as soon as the dock runs out? this way the dock battery doesn't sit at 3% until the tablet battery dies (sometimes a 2-3 days)...
also, how long is too long to leave the tablet/dock plugged in after its been charged? (e.g. if you plug it in before you go to sleep it will be fully charged at least a couple of hours before you unplug it... is this frying the battery?)
thanks and much appreciated!
I dont think that leaving it plugged in is frying the battery, because it stops charging when its full. Also dual battery widget info shows when the battery was charged last time. e.g. last night around 4am plugged in tablet with dock to charge, woke up at 9am, both batteries were 100% (and not hot as while charging) and battery widget showed exact time when it stopped charging, which was around 7am. Rest of the time while plugged in it does nothing i guess
hairpower said:
I dont think that leaving it plugged in is frying the battery, because it stops charging when its full. Also dual battery widget info shows when the battery was charged last time. e.g. last night around 4am plugged in tablet with dock to charge, woke up at 9am, both batteries were 100% (and not hot as while charging) and battery widget showed exact time when it stopped charging, which was around 7am. Rest of the time while plugged in it does nothing i guess
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Thanks for sharing your experiences and the logic... That makes sense to me too... However, I do notice sometimes that the charger is quite hot still in the morning.... which makes me wonder. Add to this the whole idea of product life-cycle and planned obsolescence (and things such as internal non-user changeable battery) and I get a bit sceptical... but thats probably just me...
Modern batteries don't like to be drained and last longer if they're 'topped up' on a regular basis. The only time a battery should be drained now-days is if your calibration is off and the software needs to see where the 'top' and 'bottom' of the charge range is.
Also, if your charger continues to charge your battery once it's at 100% you should have that replaced as it's broken.
The old habit of 'deep cycling' your battery is for older style batteries.
If I'm not using my tablet it's on the dock, on a charge. It's fine.
Is there a way to monitor the dock battery?
grgmre said:
Modern batteries don't like to be drained and last longer if they're 'topped up' on a regular basis. The only time a battery should be drained now-days is if your calibration is off and the software needs to see where the 'top' and 'bottom' of the charge range is.
Also, if your charger continues to charge your battery once it's at 100% you should have that replaced as it's broken.
The old habit of 'deep cycling' your battery is for older style batteries.
If I'm not using my tablet it's on the dock, on a charge. It's fine.
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thanks!!
JerzyIroc said:
Is there a way to monitor the dock battery?
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Yep, get the Dual Battery widget:
https://market.android.com/details?id=org.flexlabs.widgets.dualbattery&hl=en
JerzyIroc said:
Is there a way to monitor the dock battery?
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try 'dual battery widget' available in market... (if this is what you are talking about...)
Or check out the themes/apps section for the official widget from the prime. There's one themed to look like our tf101. That's what I use.
EDIT: here's the one I'm using
http://forum.xda-developers.com/showpost.php?p=21533800&postcount=37
Hi everyone
My problem is.. my DS started to charge slowly.
Now it doesn't really charge slowly, If I check the voltage, I will get like 4220mv but as soon as it reaches that, the charging graph just goes flat.
If say I have charged it to 70% and it started going slow. i switch it off, place on the charger, and the lamp goes green. I turn it on, and it is showing 100%.
I have tried calibrations, diffirent kernels, wiping, factory resets e.t.c.
Another thing is that if I will run a v6 battery calibrator,it will show that actually I should have a 100% charge although a phone is showing only 70%.
So the summary: Phone charges normally when off (when recovery monitors charging), showing the correct voltage when on... But showing the wrong percentage if on charge.
Also sometimes if the battery is like 14% left. And I turn the phone off and then on again, it will show 22% bearing the same voltage as when it was 14%.
Question: Is there any way to tweak the battery indicator so it would show % values same as the v6 calibrator does it or is it a hardware fault, if yes, which part of it ?
This happens to me on my older (original) battery, but not my new one. I bought the second battery when this problem started happening. So, I think it's just a symptom of an old battery.
By the way, if you leave it on charge long enough, it will eventually jump up to 100%.
Other than this weird behaviour, it has no real impact on anything.
Sent from my Nexus 7
Thought so, mines been acting similarly lately, but strangely enough it seems to be getting better
I think I found out..
I actually purchased a new battery recently, because my old one was jumping like crazy and started discharging in a few hours..
This new battery I bought from a mobile repair shop.
It is a cheap chinese battery with no name, anyhow I just took it out to take a look at it...
And guess what, it sais 1200mah..
Can the phone be confused because of that ?
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?
After updating to KatshMallow #26 I noticed my dock battery was never charging above 92%. I plugged the dock in alone overnight and the next morning it only shwed 87%. So I connect the tablet and ran it down until it shut off. Prior to shutting down the dock battery indicator never changed from 92%. I also didn't see any indication that the tablet was drawing from the dock battery. I plugged in the dock with the tablet attached and once I saw the green light on the tablet I powered it up. Dock battery = 87%, Tablet battery 100%. I left it plugged in with the tablet attached overnight and nothing changed. Same indications the next morning. Dock never moves from 87% no matter what I do. I installed Dual Battery widget and it only shows one battery. ???
Not sure what happened, and I don't think the update has anything to do with the issue. The dock battery has probably been going south for a while but I didn't notice it until I updated to #26. I have searched numerous threads looking for comparable issues but nothing matches. Even so I tried some of the different apps suggested with no luck. It is puzzling that Dual Battery Widget only shows 1 battery when the Asus indicators show 2.
I have found a replacement battery for $29.00 but before I spend the loot and risk trashing my dock I would like to be certain that it truly is a bad battery and not some flukey software issue that I can fix. Also, all other features on the dock work fine.
Any suggestions?
UPDATE: After leaving the tablet and dock combo unplugged for most of the morning, the orange power light on the dock began to flash. Once I plugged it in, it immediately went solid orange. My understanding is that the light flashes when the battery level gets below 10%. So is it working properly except the screen indicator is lying to me?