Related
Just wanted to open up a thread here to see what we can do about battery calibration issues.
Not sure, but I read around that people are getting phone shut downs at the 10%-15% ranges.
When in actual fact it should be somewhere around the 1%-5% range?
Was wondering if there is some possibility in coding the phone to read the battery state better? Thus, eliminating the need for calibrating the battery through tradition means (ie: wiping, charging, etc)
Thoughts?
EDITS:
We've managed to figure out huge boundaries for the battery.
There are currently two ways to get your battery into "learn mode" - which will adjust the values of your battery to accurately reflect it's "age" and mAh tracking. This will lead to a fix for those of you who are currently facing issues with the battery shutting down anytime before the 1% mark.
1st fix:
1) Drain battery
2) Just as the battery hits "Shutting Down", plug in your charger
3) Let the phone power down
4) DO NOT TURN ON THE PHONE
5) Let it charge up overnight or something along the lines of 4-6 hours, which should ensure it will be fully charged
6) Power up, your phone should be calibrated and will now shut off at 1%
2nd fix:
Head over to the Battery Calibration Tool Thread which spawned off from the discussions here!
>> http://forum.xda-developers.com/showthread.php?t=765609
For those who have been following the thread and wonder what your status_reg value mean theloginwithnoname has kindly provided us with some datasheets and translations, which you can get with the following links:
Binary Conversion: http://forum.xda-developers.com/showpost.php?p=8013370&postcount=548
Then refer to Page 25 of the following datasheet: http://datasheets.maxim-ic.com/en/ds/DS2784.pdf
OR you can try out mtw4991's method to get learn mode done with the battery app that's been created out of this brainstorm thread.
The link to his method is > http://forum.xda-developers.com/showpost.php?p=9583271&postcount=340
I began this thread in other to simply find a fix for our current battery % meter. Basically, users (myself included) were having a problem with inaccurate battery % readings. Some N1's would shut down above 1% and this would leave many guessing when the battery would give out.
Needless to say, here at XDA - we managed to find the fixes. ;-)
And of course, we decided to take it to the next level.
How can we now push more out of our batteries?
RogerPodacter and theloginwithnoname have been working endlessly learning and understanding the how the battery registry works and together with dvgrhl they're finalizing a battery mod app which will help the N1 cope with the "learn mode" and changes. So do thank them for the great work they've been pushing out with! =)
They've helped us hammer out all the core details concerning the battery understanding, values, binaries, and we're wading through the mess to push the limits on the batteries (short of blowing them up as usual of course).
Be patient if the app isn't ready yet. And if you're a n00b, please don't mess around with the registry values and such if you have absolutely no idea what you're doing.
No one is gonna give a rat's poopoo if you blow up your phone and set your house on fire and gremlins kidnap your toes.
Peace out.
This thread is and methodology has served its purpose and many of us from this thread have moved on over to the Battery Calibration TOOL thread. The methods still work, but so do the newer methods at the tool thread, which I personally find is much easier and better.
If you'd like to use the manual method, it'll still work.
For those more interested in the newer method and I encourage you to do so - head on over through this link > http://forum.xda-developers.com/showthread.php?t=765609
+1
It happened to me yesterday. I am playing with my phone and I needed to check an important address on Google Maps, so I was thinking "Oh great I still have 9% battery" and then all of a sudden BOOM. It powered off. I mean seriously WHY have those extra 9% if I am never going to use them. So In reality my phone battery is like 80%
100%-(first 10% which drain in like 5-6minutes) - 10% that I never use cause the phone shuts off = 80% BOOOOOOOOOOOOOOOOOO NOT COOL
happened to me on cm 5.0.7.1 about 7% battery
I guess this would be an appropriate time/place to ask this question. I had someone PM me asking how to calibrate their battery and I didn't know if I provided them with the correct response. What I've always done is let the battery drain ALL the way down until it dies~usually about 1% and then fully charge the phone while it is off. Then, let it die down once again on that charge and repeat the charging while the phone is off. Is that the correct way to calibrate the battery or am I taking unneccesary steps?
THATTON said:
I guess this would be an appropriate time/place to ask this question. I had someone PM me asking how to calibrate their battery and I didn't know if I provided them with the correct response. What I've always done is let the battery drain ALL the way down until it dies~usually about 1% and then fully charge the phone while it is off. Then, let it die down once again on that charge and repeat the charging while the phone is off. Is that the correct way to calibrate the battery or am I taking unneccesary steps?
Click to expand...
Click to collapse
No idea as well honestly. I've never charged my phone while it's off... so that might be the issue...
But then again, my phone has often turned off at the 10% mark. So that's why I thought I'd get more input here on how we can actually find a way to calibrate our batteries or something.
i have two oem batteries and a dock..Everyday I completely drain the first and swap it out with a fully charged one off the dock and both batteries perform great and never shut down above 1% every single time. So the batteries are always completely drained and then have a slow no stress recharge, maybe this is why mine go to 1%?
chowlala said:
No idea as well honestly. I've never charged my phone while it's off... so that might be the issue...
But then again, my phone has often turned off at the 10% mark. So that's why I thought I'd get more input here on how we can actually find a way to calibrate our batteries or something.
Click to expand...
Click to collapse
I notice that if I charge my phone while it is off and take it off about 20 minutes after the light turns green, the discharge rate is MUCH slower than if I charge it while the phone is on. Or, I will charge it while on, let it get to 100%, turn it off and continue to charge until the light turns green again. Either of those two ways give me the best results for battery life.
Doesn't the Li-on type of battery calibrate itself when charged from 0% (or the specified minimum) to 100%?
THATTON said:
I notice that if I charge my phone while it is off and take it off about 20 minutes after the light turns green, the discharge rate is MUCH slower than if I charge it while the phone is on. Or, I will charge it while on, let it get to 100%, turn it off and continue to charge until the light turns green again. Either of those two ways give me the best results for battery life.
Click to expand...
Click to collapse
Hmm. Interesting thought. Guess letting it charge to 100 while its on is one thing, then turn it off so it maxes out before daily use. I'll try that tomorrow morning and see.
Stats have been recalibrated to pershoots kernels already. So tomorrow will be a good testing day.
LiOn batteries should NOT be drained completely. It is bad for them. You should simply charge to 100%, turn the phone off, let it continue to charge (you may be at 100% when in OS but not truly 100% to the battery) and then wipe battery stats.
hah2110 said:
LiOn batteries should NOT be drained completely. It is bad for them. You should simply charge to 100%, turn the phone off, let it continue to charge (you may be at 100% when in OS but not truly 100% to the battery) and then wipe battery stats.
Click to expand...
Click to collapse
Yeah, the discharge part is actually true. There's more info here bout the batts, but nothing much bout calibration.
http://forum.xda-developers.com/showthread.php?t=669497
chowlala said:
Hmm. Interesting thought. Guess letting it charge to 100 while its on is one thing, then turn it off so it maxes out before daily use. I'll try that tomorrow morning and see.
Stats have been recalibrated to pershoots kernels already. So tomorrow will be a good testing day.
Click to expand...
Click to collapse
The biggest thing I noticed right off the bat in doing this was that normally my battery drains from 100% to 90% in less than 30 minutes. After doing what I suggested, I see that my battery discharges much slower from 100% to 90%! Hope it works for you.
My phone was doing that ALL the time. Here's what i did that fixed the issue for me.
1.) Let my phone die as usual.
2.) KEPT IT DEAD... for 1 day
3.) Charged with the phone OFF for 1 day.
4.) Went to RA's recovery as soon as i turned the phone on and reset Battery Settings.
5.) Rebooted and all is well.
I hope this helps someone else.
(My phone would die at 13% EVERY time. It got really annoying when trying to Navigate when i forgot my USB cord for my PowerCup. :< )
And yes i know about the whole not letting Lion Batteries die. When i worked for T-Mobile and the customers would bring in their N1's doing this, every call to HTC this is what they told me to do. (Minus the whole awesome recovery and such). They said letting the battery drain will not hurt the phone as long as it regains 100% charge after the initial drain.
AGAIN. This worked for Me. So im not promising you anything. Plus the batteries are only 25 bucks from Google. And i have 4 extras... Just in case. I would invest in some if i were you. Cause lord knows, were going to do some SERIOUS stuff to our phones. Extra Batts dont hurt.
Lithium batteries don't have memories, that's a leftover idea from the old Nickel Cadmium (NiCad) and NiMh (Nickel Metal-Hydride) days. The idea with Lithium (Ion & Polymer) should pretty much just be charged up whenever. Letting them be drained completely isn't good for them and will reduce their lifespan (reduced mAh) although it won't almost immediately kill them ala lead-acids. Overcharging them via a circuit with a poor cutoff also isn't good for them as they'll heat up, phones or any decent AC charger should stop charging when they hit 100% though.
Probably about the best you can do is charge it to 100%, pull the battery and reboot the phone and then reboot it again. The charge calculation will be based on the rated mAh of the battery which depending on the quality of the battery and the charging system of the device could end up giving you some funny figures. Not much you can do about it though.
I just wanted to say that this link does mention a proper calibration charge, it just does not go into detail.
Item 3 of "General Lithium-Ion Battery (LIBs)Usage":
• Although it is said that LIBs do not have memory, it's not entirely true. LIBs have gauges that monitor performance of cells, and if you do a lot of small charges, it won't let those gauges to monitor a full battery potential, causing an invalid indication of charge level. A complete charge/discharge should be made when battery capacity seems reduced, that will calibrate gauges and they will provide your phone with correct charge level status. A full charge/discharge cycle should be done every 30 (or so) partial charges.
Click to expand...
Click to collapse
My assumption of a complete charge/discharge cycle would be:
1. drain battery until the device dies
2. charge the battery to 100%
3. power device on
4. drain battery fully until device dies (no small charges!)
5. charge battery to 100%
This should allow the battery gauges to recalibrate and improve battery capacity.
People seem to be in the dark about lithium ion batteries, how they are charged, and how the device estimates battery charge remaining.
Lithium batteries do not have memory effects, but the phone does keep a file with charge info about the battery; it uses this to estimate charge left and how to charge safely when the device is powered on.
When properly charging a Li-ion battery, the last 10% of the charge should take almost as long as the time it takes to charge from 0 to 90% (well about half as long meaning a full third of the charging time should be going into the last 10% of the charge) Charging with the device off, charges the battery more completely and consistently.
Li-ion battery chargers use a type of charge cycle called constant amp/constant voltage. The battery will be force fed amps until the battery's voltage peaks and it will then be fed a constant voltage. (around the 90% charge mark) During the constant voltage phase, the amps that the battery is taking in will be monitored; as the battery gets closer to full charge the amperage will drop more and more, until it is just a tiny trickle. When it gets to that point, the battery is fully charged. Obviously charging with the device still powered on creates a problem for that type of charging. So the battery can only be charged to the peak voltage, then the charge cycle must stop; as the last 10-15% of the charge can not be completed safely.
It is always good to let a device run until dead and then charge with the device off a couple times when the device is new, and then charge the device from empty while powered off once every couple months. (do not do it too often, as Li-ion batteries prefer to be between 50-80% charge for longer service life) This allows the device to maintain a proper reference data file on the battery and its charge state. this data file is what Android uses to estimate the charge in the battery, if the file is not accurate, the device may power down sooner than it should, or not charge fully to a true 100% state. (peak voltage state when powered on that is)
Also, Li-ion batteries are rated for capacity from a discharged voltage of 3v. So a 1500Mah battery is rated to provide 1500mah of power from fully charged to a final discharged voltage of 3v.
I do not know what the minimum operating voltage of various devices is, but if it is higher than 3v; then the phone must shut down at its min operating voltage and not the 3v needed to get full capacity. My Nexus one shuts off around 3.5v so there is around 25% of the actual rated battery capacity left. (remember what I said about Li-ion batteries liking to be between 50-80%, this left over capacity means that running the battery dead repeatedly is less harmful than if you drained the battery to a true 0% state)
There is also a voltage drop on a battery when under load. So if you are putting a heavy load on the device (like a 3D rendered game heavy gps use) then the battery voltage may drop to below the device’s min voltage. This means that if the phone shuts down during this time, you could probably turn it back on and get a few hours of standby or a few more minutes of light use. This could be another cause for people seeing shut downs when the battery gets around 10%.
The amount of power in a battery is high, especially in Li-ion batteries with their high energy densities. Over charging a Li-ion battery can cause an explosion, literally, that little battery in your phone could remove some fingers. Over discharging is bad as well, as it can start a fire; though like I mentioned above, the cut off voltage is above the 0% state, so that is unlikely here.
Ive proposed this before and got a bit shouted down, but thumbs up if anyone comes up with anything
As i see it, its not a problem with the battery. Its a problem with the battery meter. Since following a regime of deleting my batterystats.bin file, i dont see that issue. Its the same on my g1 as it is on my n1.
This is what i do... when i charge my phone, i charge it until 100%. When it reaches that 100%, i use either use the terminal or root explorer to delete the batterystats.bin file. After which i immediately power off the phone. Now, when its powered off(and still attached to the usb charger) the light should be green. But usually its not! Sometimes it charges up to a full hour longer before it turns green! When it turns green, power the phone back up and enjoy tue extra kick of battery life. Its not actually gaining battery life, its just resetting tue battery meter in the phone. This could only be done with a rooted phone. Oh, i think that this whole innaccurate battery meter thing is a problem with android in general. The meter becomes innaccurate with time. Sometimes extremely innaccurate.
Using the terminal...
su(press enter)
rm /data/system/batterystats.bin(press enter)
Then power off
Wow. Lotsa pewpewz here. Haha.
Again, after all the discussions, seeing that most of us agree the N1 keeps "stock" of how the battery chargers, is there a way for us to check or see how the battery is being calibrated, etc?
Not so much an app to modify the calibration, cuz that'll just be too dangerous, but something more like a tool to monitor it, so we know if it's calibrated right or wrong.
Deleting the batterystats.bin file isnt an app. Its either a script you run to delete it or physically deleting it. And its not dangerous. Ive done it well over a thousand times with my g1 and n1 combined. If you wanted to find out how the calibration work, i guess you could make a copy of your batterstats.bin and read it
Hopefully I can state this in a way that doesn't scream "I don't know how to use teh search!"
I calibrated my battery stats using the free app on the market after flashing darkside. My phone used to charge to 100% on the indicator (4200+ mV). Now, a couple of weeks later, it charges to the same 4200-and-up charge but the meter tops out at 92%. Two days ago, it was topping out at 94%.
I've re-calibrated using the app, draining it down and charging fully up. Same result, 92% max.
I've wiped battery stats using CWM immediately after charging fully (verifying the charge is above 4200 mV). Rebooted. Still at 92%. Actually, now it's reporting 90% with 4128 mV.
so if wiping stats is a "useless operation", what gives? How is it possible that this method apparently fixed other users' miscalibrated battery meters stuck down around 30-40%?
Try this:
1. Charge as much as it will charge
2. Turn it off and take out the battery
3. While the battery is still out, plug it in and wait for it to show the battery image with the question mark
4. Put the battery back in (do not turn on yet) and let it charge for an hour
5. After an hour, turn it on, unplug, and report back
Note: On step #4 when you put the battery back in it will probably only show like 5% or 10%, just ignore that and let it charge
cowsaregreat said:
Hopefully I can state this in a way that doesn't scream "I don't know how to use teh search!"
I calibrated my battery stats using the free app on the market after flashing darkside. My phone used to charge to 100% on the indicator (4200+ mV). Now, a couple of weeks later, it charges to the same 4200-and-up charge but the meter tops out at 92%. Two days ago, it was topping out at 94%.
I've re-calibrated using the app, draining it down and charging fully up. Same result, 92% max.
I've wiped battery stats using CWM immediately after charging fully (verifying the charge is above 4200 mV). Rebooted. Still at 92%. Actually, now it's reporting 90% with 4128 mV.
so if wiping stats is a "useless operation", what gives? How is it possible that this method apparently fixed other users' miscalibrated battery meters stuck down around 30-40%?
Click to expand...
Click to collapse
Bump charging now. Will report back in an hour
.... all right, got impatient. Pulled it just now; 99% on 4158 mV. That's better. Many thanks!
IT REALLY WORKS.........Thanks so much!
yes the above method Does work try it and it Will work for Ya
Sent from my MB860 using Tapatalk
in cm7, charges to 98% normally, but sometimes takes hours to reach 100%.
I hope i'm not hijacking this thread, but since we are talking about mV i thought this might be a good place to ask....
I've been having problems with my battery levels for a while, i've tried all the voodoo to try and fix it but i can't get anything consistent.
here is what i get....
i have battery calibration app installed, sometimes it will read 4200mV and be 20% charged. Other times it will read 100% charged at 3700mV, it's all over the place, and trying all the suggestions to fix the battery life don't seem to fix it.
another thing i have is it will discharge from 100% to 5% within an hour but my mV will be at 3900+, then it will sit at 5% for another 8+ hours then the phone shuts off, so i plug it in and it says 5%, i let it charge for a minute or two and it's at 20%, i turn it on and it shows that it's above 3700 or 3800mV.
so the phone thinks it needs 3700+ mV to run, but not always, sometimes it will go down below 3600mV and still run
A couple questions
1. can someone post their mV reading at 5%, i'm guessing it should be about 3300
2. what is the max mV that you have....is it above 4200mV (mine never is)
FYI information i've tried fastboot -w, cwm battery wipe, deleting the battery stats file manually, even formatted /system and other file systems to make sure it was fresh
live4nyy said:
Try this:
1. Charge as much as it will charge
2. Turn it off and take out the battery
3. While the battery is still out, plug it in and wait for it to show the battery image with the question mark
4. Put the battery back in (do not turn on yet) and let it charge for an hour
5. After an hour, turn it on, unplug, and report back
Note: On step #4 when you put the battery back in it will probably only show like 5% or 10%, just ignore that and let it charge
Click to expand...
Click to collapse
Ok,
I did this and my battery starts off at 100% and all appears to be fine. The next time I charge, it only shows 83% and it is reading 4200mV which should be a full charge. Do I have to do this each time? Is there any other solution? I am running CM7 stable and the battery is an aftermarket one. Could this be the issue? Thanks in advance all.
boulos said:
Ok,
I did this and my battery starts off at 100% and all appears to be fine. The next time I charge, it only shows 83% and it is reading 4200mV which should be a full charge. Do I have to do this each time? Is there any other solution? I am running CM7 stable and the battery is an aftermarket one. Could this be the issue? Thanks in advance all.
Click to expand...
Click to collapse
One trick I've found is unplugging the micro-USB and plugging it back in immediately. When I do this the 4200mV usually drops to the low 4100 range and the % continues to increase.
Only caveat is you'll have to keep doing this until it reaches 100. It takes a while since it seems to get re-stuck at every 1-2% intereval. A pain, but it's a work around from having to pull the battery. :silly:
I have the same issue too but DO I ALWAYS HAVE TO DO THIS METHODS? My battery level drops day by day (becomes %92 max) from %100.
I'd had the issues you explain for AGES.
I'd heard that buying a new battery wouldn't help. But I bought a new, official battery off eBay and I've not had the issue since. That was a couple of months ago now... not saying it will definitely work but at worst you have a spare battery...
What works for me... Charge up as much as possible, then use root explorer and go to data/battd/ and delete everything except the file "uid" then reboot... Should be good to go...
Hope this helps!
Sent from my MB860 using xda premium
bamastang said:
What works for me... Charge up as much as possible, then use root explorer and go to data/battd/ and delete everything except the file "uid" then reboot... Should be good to go...
Hope this helps!
Sent from my MB860 using xda premium
Click to expand...
Click to collapse
This definitely worked for me. I was having repeated issues that full charge/drain calibrations didn't fix. This did.
I had the same issues with charging it ,but i foudn out that the only failproof method of chargin it by using the oem ac adapter and the oem usb cable if you dont have the cable the nokia cables shoud do the trick but the samsung one does not work i dnno exactly why but i tested it myself.
live4nyy said:
Try this:
1. Charge as much as it will charge
2. Turn it off and take out the battery
3. While the battery is still out, plug it in and wait for it to show the battery image with the question mark
4. Put the battery back in (do not turn on yet) and let it charge for an hour
5. After an hour, turn it on, unplug, and report back
Note: On step #4 when you put the battery back in it will probably only show like 5% or 10%, just ignore that and let it charge
Click to expand...
Click to collapse
what do you mean of the 3 step, do you mean while the battery out, plug it to AC and wait ? mine doesnt do anything...I dont think any phone works without a battery.
shevin said:
what do you mean of the 3 step, do you mean while the battery out, plug it to AC and wait ?
Click to expand...
Click to collapse
Yes, that's what the step 3 means.
shevin said:
I dont think any phone works without a battery.
Click to expand...
Click to collapse
You'd be surprised.
ravilov said:
You'd be surprised.
Click to expand...
Click to collapse
Ha, I remember my old startac worked like a charm plugged in the charger without a battery xD
Enviado desde mi MB860 usando Tapatalk 2
I've bought a new legit/official (has holo, serials etc.) Atrix battery.
Charged it to 100%.
During usage, its draining literally 10% an hour with very light usage (several minutes an hour). In short its draining at three times the speed of my 1 year old battery.
I've tried wiping battery stats but that didn't work.
Any ideas, or is the stats just buggered and I just gotta run it in? (ie it will go to zero then sit on zero for 5-6 hours lol)
note I've gone back to my original battery in meantime rofl
EDIT: The actual problem is that the batt is reporting much less capacity than it actually has
|The new battery is great capacity wise lasts till midnight
However the stats are still totally screwed, it will say 1% by midday, then hum along until midnight fixed at 1% (I dunno exactly how long for as I can't take the risk of leaving it off at night then its dead and I don't wake up for work in morning). |
Could just be a bad battery. Considering the old works fine that's probably the problem.
wintermute000 said:
I've bought a new legit/official (has holo, serials etc.) Atrix battery.
Charged it to 100%.
During usage, its draining literally 10% an hour with very light usage (several minutes an hour). In short its draining at three times the speed of my 1 year old battery.
I've tried wiping battery stats but that didn't work.
Any ideas, or is the stats just buggered and I just gotta run it in? (ie it will go to zero then sit on zero for 5-6 hours lol)
note I've gone back to my original battery in meantime rofl
Click to expand...
Click to collapse
wintermute000 said:
I've bought a new legit/official (has holo, serials etc.) Atrix battery.
Charged it to 100%.
During usage, its draining literally 10% an hour with very light usage (several minutes an hour). In short its draining at three times the speed of my 1 year old battery.
I've tried wiping battery stats but that didn't work.
Any ideas, or is the stats just buggered and I just gotta run it in? (ie it will go to zero then sit on zero for 5-6 hours lol)
note I've gone back to my original battery in meantime rofl
Click to expand...
Click to collapse
I have a similar problem with the original battery that came with phone it drains the charge quickly to 1% and on one 1% it gives a battery life of more time than the time it took to discharge from 100%.i was thinking of buying a new battery but now i am confused that what should i look before buying the battery to get a battery that can show me the exact charge on the indicator.
I have tried all tutorial of calibration used different roms and kernels but nothing seems to solve the issue.
well I might try that then, just let it run to zero see how long it lasts then see whether the stats come good over time
OK help needed.
The new battery is great capacity wise, lasts from morning to bedtime with >2 hours of bluetooth music, 30 mins calls, a ton of texts.
However the stats are still totally screwed, it will say 1% by midday, then hum along until midnight fixed at 1% (I dunno exactly how long for as I can't take the risk of leaving it off at night then its dead and I don't wake up for work in morning).
Aside from wiping stats which I have tried, is there anythnig else I can do?
I really want to use it, like I said real life capacity is great, but if its always giong to be reporting 1% its a bit dicey not knowing how much batt you really have left...
same issue with my spare battery not sure wtf is going on
When I have battery stat problems the following has always fixed it:
1) leave phone on until it dies
2) take back off phone and plug into wall charger
3) after batt symbol shows 100% (without unplugging or turning off the phone) remove the battery. After a minute or so battery symbol will have question mark
4) put battery back in and leave it for at least 2 hours (seems like I have had to press the switch sometimes but you don't want the phone to reboot or you will have to start all over)
5) reboot into CWM and wipe the battery stats
6) reboot and it should be good to go
Anyone else found a fix to this yet?
I'm now running ICS (turl build) issue is still there.
Steps taken to resolve
- discharge to zero
- charge to max
- wipe stats
still there.
The weird thing is that the actual capacity is fine, it can last all day no worries, just from midday onwards it thinks its 1% so has annoying LED flashing at you, also you have no idea how much batt it actually has.
Edit: I just realised your suggestion above has extra step (take batt out of connected atrix then insert again). I guess I'll have to drain it again and do it overnight... gah
wintermute000 said:
Anyone else found a fix to this yet?
I'm now running ICS (turl build) issue is still there.
Steps taken to resolve
- discharge to zero
- charge to max
- wipe stats
still there.
The weird thing is that the actual capacity is fine, it can last all day no worries, just from midday onwards it thinks its 1% so has annoying LED flashing at you, also you have no idea how much batt it actually has.
Edit: I just realised your suggestion above has extra step (take batt out of connected atrix then insert again). I guess I'll have to drain it again and do it overnight... gah
Click to expand...
Click to collapse
Nothing will work i have tried almost every tutorial. Recently i found out the phone is showing the the full capacity of battery only 500 that's why i think we will have to change that with the actual voltage to get a accurate battery indicator.What's ur battery full charge design check if from the root exploler
/sys/devices/platform/cpap_battery/power_supply/battery
My phone uevent is showing this
Powersupply-capacity=5
Powersupply-voltage-now=3836000
Powersupply-temp=260
Powersupply-charge-fill-design=500
Powersupply-charge-counter=1
terminator1983 said:
Nothing will work i have tried almost every tutorial. Recently i found out the phone is showing the the full capacity of battery only 500 that's why i think we will have to change that with the actual voltage to get a accurate battery indicator.What's ur battery full charge design check if from the root exploler
/sys/devices/platform/cpap_battery/power_supply/battery
My phone uevent is showing this
Powersupply-capacity=5
Powersupply-voltage-now=3836000
Powersupply-temp=260
Powersupply-charge-fill-design=500
Powersupply-charge-counter=1
Click to expand...
Click to collapse
I'll try the insert empty bat into already connected phone, charge to 100% remaining off, repeat trick overnight, then report back.
FWIW on my 'good' battery which is 1 year old ROFL it says 1880
not sure how changing it would help though or is even possible?. It must be dynamically reported somehow as my good battery gives me a 'good' stat.
I use battery calibration and it worked, have it
http://bit.ly/Ah732P
I'm guapurrin
the battery is charging calibration if you have to load it to calibrate
wintermute000 said:
FWIW on my 'good' battery which is 1 year old ROFL it says 1880
not sure how changing it would help though or is even possible?. It must be dynamically reported somehow as my good battery gives me a 'good' stat.
Click to expand...
Click to collapse
How much is ur other battery showing.I have tried different ways but was not able to change values.
500 same as you! second drain and calibrate did nothing
Maybe theres a faulty batch of batteries and we both got one
Can people PLEASE stop telling us to calibrate we've BOTH DONE THAT MANY TIMES NOW. The problem is that the capacity of the battery is being reported as 500mah not 1930 or whatever its supposed to be. THe actual running time of the battery is fantastic, just thinks its at 0 all the time lol
/sys/devices/platform/cpap_battery/power_supply/battery
Powersupply-charge-fill-design=500 - should be ~1900mah
Sent from my Sony Tablet S using Tapatalk
For the past few days my battery has been charging to a max of 92%, whether or not I try unplugging the battery, leaving the phone on the charger, wiping battery stats, and doing all that I can to try to reset the battery stats.
Anyone have any idea?
UPDATE: My phone is still not charging past 92%, no matter how long I leave it on, or what I try to do to fix it. 4167mv max
I have a similar issue, it's been like that for a long time for me. What ROM/kernel are you running? It might fix it to completely drain it, charge it powered off, reinstall ROM/kernels when it is completely charged and reset battery.
Sent from my MB860 using xda premium
drain it until it shuts off and then charge it all the way to 100%.
I too was having this issue after going from cm7 week 5, to week 8. I did what others were recommending and charged to what showed 4200mv, pulled the battery while still plugged in, put battery back in then after it showed 5%, turned it back on and Viola, 100% battery. Try it.
its most effective if you know your battery is fully charged, power it down, pull the battery, while the battery is pulled plug it into the power adapter, it will act like its starting to charge, but then instead of having a percentage, it will have a question mark. pull the power, put the battery back in, turn on, wipe battery stats in recovery and run with it...
GL
johng75 said:
its most effective if you know your battery is fully charged, power it down, pull the battery, while the battery is pulled plug it into the power adapter, it will act like its starting to charge, but then instead of having a percentage, it will have a question mark. pull the power, put the battery back in, turn on, wipe battery stats in recovery and run with it...
GL
Click to expand...
Click to collapse
I just started having this issue and cant wait to try it thanks for the suggestions.
when this happend on mine all i did was keep using it and it fixed itself. i ran it down maybe to 20% before I got to charge it again and it slowly creeped back up to 100%. took about a week.
I've had the problem, and have run the solution more times that I can count. But nothing ever fixes it permanently. Everytime I run the battery low, the levels get all screwy again. Maybe my phone is just worse than everyone else's, but I had to just give up on it. Would love a permanent solution, but so long as I'm running this ROM (CM7), I doubt I'll ever find one.
lurchbyrep said:
I've had the problem, and have run the solution more times that I can count. But nothing ever fixes it permanently. Everytime I run the battery low, the levels get all screwy again. Maybe my phone is just worse than everyone else's, but I had to just give up on it. Would love a permanent solution, but so long as I'm running this ROM (CM7), I doubt I'll ever find one.
Click to expand...
Click to collapse
I'm in the same situation as you are... I had this problem for a long time now (Guess it has something to do with excessive flashing...) and no matter what kind of solution I do (Wipe battery stats via recovery, re-calibrate the battery, pull the battery out while charging and replugging it) it returns after a day or two.
I want to check if it has something to do with the battery or the device, and if I will remember to do so, I will plug my spare battery for several day's run, but that is subjected to me leaving the comfort of my usual laziness....
Would love if there was a permanent solution as well, thou I doubt that too....
I've had the same problem on a number of different roms and at different times. I find that instead of mucking around wiping stats etc, it has always come good eventually for me.
timfoote said:
I've had the same problem on a number of different roms and at different times. I find that instead of mucking around wiping stats etc, it has always come good eventually for me.
Click to expand...
Click to collapse
Didn't really understand what you meant, did the battery percentage fixed by itself and gave you 100% at full charge on one day? out of the blue?
Or did you just got used to have less then 100% battery display?
Magnetox said:
For the past few days my battery has been charging to a max of 92%, whether or not I try unplugging the battery, leaving the phone on the charger, wiping battery stats, and doing all that I can to try to reset the battery stats.
Anyone have any idea?
Click to expand...
Click to collapse
First let the battery completely drain and the phone shut down by it self. Second step is to pull out the battery and leave it out for 10min, after that take a plastic bag and put the battery in it and place it in the freezer for 15min. after this palce the battery again in the mobile. make sure there is no any moisture on the battery. Then charge the phone without power on till 100%.
By following these steps this will made your battery to charge fully and more talk time
masood8 said:
First let the battery completely drain and the phone shut down by it self. Second step is to pull out the battery and leave it out for 10min, after that take a plastic bag and put the battery in it and place it in the freezer for 15min. after this palce the battery again in the mobile. make sure there is no any moisture on the battery. Then charge the phone without power on till 100%.
By following these steps this will made your battery to charge fully and more talk time
Click to expand...
Click to collapse
Um correct me if I'm wrong anyone, but doesn't cold kill the battery and shorten its life? I remember my mom always putting new batteries in the fridge and them only lasting a couple days compared to the ones left out that lasted a month or so with same use.
masood8 said:
First let the battery completely drain and the phone shut down by it self. Second step is to pull out the battery and leave it out for 10min, after that take a plastic bag and put the battery in it and place it in the freezer for 15min. after this palce the battery again in the mobile. make sure there is no any moisture on the battery. Then charge the phone without power on till 100%.
By following these steps this will made your battery to charge fully and more talk time
Click to expand...
Click to collapse
Haha, I got a good laugh out of this one -- you've got to be joking.
I've had this problem for a quite a while now with the Atrix and two different batteries. I've tried dozens of combination of resetting the battery stats, running the battery completely down, and powering up without the battery and hot swapping it in. The hot swap definitely allows me to finally recharge to 100%, but once I run it down again, the problem returns. I've learned to just live with the less than 100% reading -- battery still seems to last a full 24 hours for me.
masood8 said:
First let the battery completely drain and the phone shut down by it self. Second step is to pull out the battery and leave it out for 10min, after that take a plastic bag and put the battery in it and place it in the freezer for 15min. after this palce the battery again in the mobile. make sure there is no any moisture on the battery. Then charge the phone without power on till 100%.
By following these steps this will made your battery to charge fully and more talk time
Click to expand...
Click to collapse
That trick hasn't worked since nicad batteries in the 90s, and is a really bad idea with our Li-PO.
Drain the battery till the phone shuts off, charge back up while the phone is off.
If it still doesn't get to 100%, boot into CWM, wipe battery stats and power off the phone to let it charge again.
^^ I know it works because I've done this like 2 days ago, and many times before that.
I have had this issue as well for a very long time. I've tried the pull out, question mark, 5% thing and it usually only works for one cycle, then the next only goes to 97%, then the next to 93%, then 90%, and it continually goes down until I have to do it again. Hopefully a permanent fix can be found soon. I've tried clearing battery stats, draining it to 0%, then charging it fully. I've tried everything. As far as I'm concerned, there's no fix as of right now.
Thanks man this worked like charm of 100 witches and 100 warlocks having orgy and satin worship
pre4speed said:
I too was having this issue after going from cm7 week 5, to week 8. I did what others were recommending and charged to what showed 4200mv, pulled the battery while still plugged in, put battery back in then after it showed 5%, turned it back on and Viola, 100% battery. Try it.
Click to expand...
Click to collapse
dyno0919 said:
I have had this issue as well for a very long time. I've tried the pull out, question mark, 5% thing and it usually only works for one cycle, then the next only goes to 97%, then the next to 93%, then 90%, and it continually goes down until I have to do it again. Hopefully a permanent fix can be found soon. I've tried clearing battery stats, draining it to 0%, then charging it fully. I've tried everything. As far as I'm concerned, there's no fix as of right now.
Click to expand...
Click to collapse
★ATTENTION! I FOUND THE FIX!★
Turn phone off and plug it in to a wall charger. Charge it until your notification light turns green, quickly tap the power button to check battery level. (Usually shows 90%) If the notification light turns on, but the battery indicator is not at 100%, unplug phone, take out battery and put it back in. Now plug your phone. It should be 100% now. For the final fix: go into "Android Recovery" and select "Mounts". Mount Your SD card and Emmc. Finally wipe battery stats. Reboot phone.
This method worked for me. I am 100% sure this is the fix for this problem. This has to be done every time you flash a new rom or when your phone freezes and you screw up calibration by pulling the battery while it is still on. BTW, this is my first post so don't be mean to me!
Sent from my MB860 CM7 20FEB 1.0 GHz Enhanced
xateeq said:
Thanks man this worked like charm of 100 witches and 100 warlocks having orgy and satin worship
Click to expand...
Click to collapse
Satin worship, is that like old fashioned polyester worship?
If I keep my phone on charging even after its on 100%, it starts rolling back. As in from 100 to 99 then 98, even if its pluggen in.
Don't know what kind of a problem this is, hardware or software.
Or there's some issue with the battery.
Please help.
lakshay03 said:
If I keep my phone on charging even after its on 100%, it starts rolling back. As in from 100 to 99 then 98, even if its pluggen in.
Don't know what kind of a problem this is, hardware or software.
Or there's some issue with the battery.
Please help.
Click to expand...
Click to collapse
Sometimes I have the same problem. I dont know if it is caused of a program running in a background or what, but reboot helps
jakuburban said:
Sometimes I have the same problem. I dont know if it is caused of a program running in a background or what, but reboot helps
Click to expand...
Click to collapse
I know the reboot helps.
But usually I put it on charging at night before sleeping.
And when I wake up in the morning, the battery % becomes even less than what it was when i plugged it in.
I'm usually in a hurry then to leave for college in the morning . Can't go to college with battery % less than even 10
Thanks for the reply anyway !
lakshay03 said:
I know the reboot helps.
But usually I put it on charging at night before sleeping.
And when I wake up in the morning, the battery % becomes even less than what it was when i plugged it in.
I'm usually in a hurry then to leave for college in the morning . Can't go to college with battery % less than even 10
Thanks for the reply anyway !
Click to expand...
Click to collapse
Maybe You have some program that syncs something all the time. Did You try to turn off data and wifi. You can always check it if the reason is the hardware or Software. Just make a backup of Your whole ROM, delete the data and leave the phone over night. I hope it is only software problem.
EDIT: Does Your battery go hot while charging? Oh, and try to wipe battery stats
jakuburban said:
Maybe You have some program that syncs something all the time. Did You try to turn off data and wifi. You can always check it if the reason is the hardware or Software. Just make a backup of Your whole ROM, delete the data and leave the phone over night. I hope it is only software problem.
EDIT: Does Your battery go hot while charging? Oh, and try to wipe battery stats
Click to expand...
Click to collapse
Yes, my battery does get hot while charging.
And I did wipe the battery stats but its of no use.
lakshay03 said:
Yes, my battery does get hot while charging.
And I did wipe the battery stats but its of no use.
Click to expand...
Click to collapse
Maybe there is really some program that is causing that. I had this problem rarely so I never cared. I had one program called Batterymonitor or sth. like that and it was the reason. Do You have such a program, that shows Your battery level or temperature?
jakuburban said:
Maybe there is really some program that is causing that. I had this problem rarely so I never cared. I had one program called Batterymonitor or sth. like that and it was the reason. Do You have such a program, that shows Your battery level or temperature?
Click to expand...
Click to collapse
Yes, I have setcpu and rom toolbox.
But would these applications really cause this problem?
Sent from my X10 using XDA
The x10 charges the battery to full then if still plugged in it will stop charging until batt drains to set level ,then will charge to full again and over and over all night. X10 wont over charge batt when left plugged in. Kernel/bootloader handle this. There is an app current widget that can log charge levels.
EDIT: I had a tip on charging here but removed it after further research read more about batt here..
http://forum.xda-developers.com/showthread.php?t=871051
ToledoJab said:
The x10 charges the battery to full then if still plugged in it will stop charging until batt drains to set level ,then will charge to full again and over and over all night. X10 wont over charge batt when left plugged in. Kernel/bootloader handle this. There is an app current widget that can log charge levels.
EDIT: the best tip I usr for battery life is, let batt runout until phone shuts off, then pull batt, then plug in charger, then replace batt into phone, then phone will boot, enter xrecovery on first boot and wipe batt stats. After wipe while still in xrec pull batt then unplug. Now plug in phone then insert batt. Phone should boot in charge mode( big batt icon only on screen) dont start phone untill light green for 1-2 hours to get full charge . I do this about once a month, when phone starts to shut off around 15%
Sent from my X10S using XDA
Click to expand...
Click to collapse
As mentioned above as well, this is normal. After charging to 100%, the phone stops battery charging, and will activate charging again only when battery falls a bit (say 97%). Also, battery heating while on charging (and also when using the phone continuously while playing a game) is normal. Relax.. your phone is fine
@ToledoJab
I am having the same issue with battery... phone switching off at 15%, even at 22-23%, when playing a game or something. But switching it back on, and leaving it idle, phone might run for another 2 hours. So it is the extra load while running a game that the phone cant take any longer (i remember getting the 15%,10% and 5% reminders earlier while playing games)...? Does the battery calibrate method actually help in your case? does it go all the way down to 0% or 1% before shutting down.. ?
I just did this after posting that. And yes my phone reported warnings @ 25% 15 10 5 and then shutdown @ 1%.
This way is like reconditioning an old rechargeable ni-cad batt.
All this does is completey drain batt then, with least amount of drainage (phone on, apps& radios running) allows battery to full charge.
There is also a way called recalibrate battery. But this way over charges the batt.
EDIT: I think the phone load will effect reported batt left. I think batt gage use average loads to estimate remaining power. Meaning games, full brightness of LCD, radios -3g -GPS -WiFi -Bluetooth will use more than avg power
edit 2: I found this thread also has some very good points and links. after reading this i will not intentionally take my batt to 0%. I hit 0% about 1-2 times a month on accident as it is. i will just make sure when i do go 0% to wipe stats (dont know if it helps or not) then preform a long (overnight) full charge with phone off.
http://forum.xda-developers.com/showthread.php?t=1445698
SORRY for ranting on about this, i thought i was smart but i am still/always learning.
From my XPERIA X10S v8.2 on kCernel @ 1.19ghz