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I don't know if I am the only one seeing this, but when I had Eclair, I had crap battery life, to the tune of 10 hours or so. (Granted this may not be crap for Nexus One but it is crap based off past phones I have had.) I installed FRF85B last night and discovered some weird glitches.
First off, when it was in my car dock, it wasn't charging yet the battery life kept dropping, I powered off the device, and powered it back on 10 minutes later (still in the dock) and no change stayed at 91%, still wouldn't charge. I then powered it off, took it out of the dock, plugged in the car charger cable directly and powered on my N1, when it turned on, it said I had 100% battery life. I then plugged it back into the car dock, and voila it started charging.
Secondly, originally when I had unplugged my N1 this morning I used it for about an hour at 5AM and it dropped 2% I plugged it back in to top it off expecting the same crap battery life from Eclair, yet so far, my phone has been fully topped off (from the car dock) for the past 40 minutes and I've made about 20 minutes of phone calls on it, yet it still is reporting 100%. So either Froyo can't properly report battery life, or it has the potential to have absurd battery life. Anyone else experiencing anything like this?
First off - you still didn't search this forum, so you're still thinking that an overcharging protection that doesn't allow you to charge unless you drop below 91%, is a quirk. It's not.
Second, wiping battery stats and making battery calibration procedure ONCE will give you a good starting point to measure something.
Jack_R1 said:
First off - you still didn't search this forum, so you're still thinking that an overcharging protection that doesn't allow you to charge unless you drop below 91%, is a quirk. It's not.
Second, wiping battery stats and making battery calibration procedure ONCE will give you a good starting point to measure something.
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The quirk isn't that it wouldn't let me charge that way, the issue was, my battery reported 91% yet when I rebooted the device with the charger directly plugged into it, it immediately showed 100%. So pretty much over the course of 30 seconds I gained 9% battery life.
I wiped my device to factory settings before upgrading to Froyo, and after as well, since my device is not rooted, my understanding is I cannot wipe my battery calibration log.
I did drain my battery fully after upgrading to froyo last night and did a full charge as well.
What you're describing looks like the statistics of the battery is "lying" a bit. I believe it can be thrown a bit off by trying to charge it when it's in 91-100% range, but I don't know the exact way it works, so I can't say much about it.
Indeed, if you're not rooted, wiping battery stats is not an option. Several times of full charge and long discharge (you don't need to go below 20%, to prevent harming the battery) are helpful in correcting the statistics.
If you get a chance to try, please repeat this again (having the phone at >90%, turning it off, plugging it into the charger and turning it back on). If it shows "Charged" again - it might be a bug worth reporting.
Jack_R1 said:
What you're describing looks like the statistics of the battery is "lying" a bit. I believe it can be thrown a bit off by trying to charge it when it's in 91-100% range, but I don't know the exact way it works, so I can't say much about it.
Indeed, if you're not rooted, wiping battery stats is not an option. Several times of full charge and long discharge (you don't need to go below 20%, to prevent harming the battery) are helpful in correcting the statistics.
If you get a chance to try, please repeat this again (having the phone at >90%, turning it off, plugging it into the charger and turning it back on). If it shows "Charged" again - it might be a bug worth reporting.
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I'll have to try it again tomorrow morning, first see if it happens under the same circumstances and go from there. One thing I do remember is the widget I was using "Battery Left" reported that at 91% I had 4100 mAh left in it, which was interesting, and when it went back to 100% it had 4120 mAh which makes me think the OS wasn't actually reading the voltage and thought it was just draining the battery instead.
EDIT: Just realised I had my wall charger with me, battery was at 90% figured I would try, real quick to attempt to replicate the problem, I was unable to, with a direct battery connection, but it could be due to a voltage issue or be related to why plugging it in directly to the car charger resolved the issue. My gut feeling is, it has to do with the dock itself and the pins it uses.
my battery often is charging and it hits 93% and immediately jumps right to 100%. it skips the last 7% or so. i think what is happening is you just finally experienced this issue, which many of us have already posted about in battery threads, but it just happens to coincide with froyo so you are thinking its new and related. the nexus ever once in a while battery meter just gets thrown off and will jump up to 100% because it really was full, just had to catch up the meter. you really should pay attention to the voltage more than percentage, using battery life widget. i know my battery is fully charged at 4.172 volts. and sometimes it hits that but still only shows 94%, so it adjusts itself in one fell swoop.
The issue is I did an extra full charge about an hour ago so I can make it till midnight and it went through all the numbers from 89-100 with no issue
Sent from my Nexus One using XDA App
Addendum: Also it seems to be voltage is not that good of a decider of how much my charge is. Before Froyo, until I dropped below 94% I was always above 4 Volts, now I drop below 4 Volts at 96%.
So this morning I was able to replicate the problem, only it was outside of the car dock, I was able to get this problem to reoccur with the wall charger. I unplugged it from power, used it a little bit and then topped it off for the day, it was at 96%. I saw the green light go on, and thought nothing of it, 20 minutes later I went back to it and it was still at 96% and showed that the battery was fully charged.
I checked the Battery Left widget and it was saying the battery was fully charged even though it said 96% left also. I did make a crappy video uploaded to youtube from my backflip to show as well what I am talking about.
AFAIK, The green LED will light when you're anywhere above 90%. It's not a function of charge being complete. Check it.
Also, if you plugged it in with 96% - this is the behavior to be expected, since the phone won't start charging unless it has below 90% to begin with, and it'll show "Charged" - because it's not charging (to prevent overcharge).
Again, fail to see any problem in what you're describing.
Jack_R1 said:
AFAIK, The green LED will light when you're anywhere above 90%. It's not a function of charge being complete. Check it.
Also, if you plugged it in with 96% - this is the behavior to be expected, since the phone won't start charging unless it has below 90% to begin with, and it'll show "Charged" - because it's not charging (to prevent overcharge).
Again, fail to see any problem in what you're describing.
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Yet my phone has always been able to charge when above 90% before froyo. This behavior is new to froyo for me at least.
Sent from my Nexus One using XDA App
It means that you've never paid attention to that until now. It's working this way since the phone was out (with stock Eclair) and if I'm not mistaken - it's not controlled by OS at all.
I did pay attention to such actually because of the fact that I had been getting piss poor battery life. This has never happened before. In the morning I would use the device a little then top it off because I noticed that works give better battery life.
Sent from my Nexus One using XDA App
Well, you had a buggy phone that has now corrected itself. Welcome to the way it was supposed to work from the beginning.
Topping off the battery at 90%+ contributes to battery degradation - heating from overcharging. So you were actually damaging your battery.
Hi guys
I went to sleep with my SGS on charge the other night. when i woke up it was under my pillow. The phone was red hot, and there was a message on the screen saying that charging had been suspended because the battery was too hot. It was at 86%. 50mins later it was fully discharged and switched itself off. Since then battery life has been 2-3 hours, the phone has been gettin hot during use, and the phone itself has been hanging for ages on every command and force closing on almost every app.
What the hell have i done to my phone? and is it fixable?
Thanks guys
SGS i9000 Running Darky Extreme Edition v9.3 with speedmod kernel
that doesnt sound good,
You could try letting the phone drain completely till it wont switch on, then charge it via USB with the back cover off, and keep it somewhere cool whilst charging.
USB doesnt send as much power as the mains hence why it takes longer to charge, but hopefully when the phone is charged up and remains cool, you could see how you get on.
But with the motherboard being behind the battery, depending how hot it actually got, it may of done some damage, but dont think too much about that yet, show it some TLC it may just need a new battery
hopefully a new battery is all you need. You didn't try anything to extend battery lify. I see there is a method to make the phone charge the battery more. It's probably not the best idea to do this. A new battery will hopefully get you out of trouble.
I've re calibrated the battery a few times since this happened, by wiping battery stats, etc. It seems to be lasting longer each time. Four hours and it's only dropped 22% so far. It's not as hot as it was either. Hopefully a wee bit of tlc will do the job right enough. Thanks guys
Sent from my GT-I9000 using XDA App
good news, How thankful are you ?? enough to click our thanks buttons lol
My battery never charges above ~76% when plugged in. After rebooting however, it is very much at 100% and lasts for a good amount of time. This is not necessarily a question, but I wonder if others are experiencing this too and if there is a fix? Read below.
I noticed that my battery life got very bad after installing custom roms. I also found out that this happened because I sometimes kept the phone plugged in while flashing, something that totally screws up the battery reading. So, I followed this guide to calibrate my battery and it worked.
Now, whenever the phone is plugged in it NEVER goes to 100% when charging. Maybe 80% if leaving it for a while (10 hours overnight). I'm worried about frying the battery. Is there a fix?
It is only a matter of presentation. It actually doesn't mean your batt is broken. Plug it and charge it overnight. Then discharge only for few percent and plug it back in. It should go to 100%.
Sent from my HTC Legend
Thanks, I'll give it a try.
What I'm concerned about is if the phone "thinks" the battery isn't recharged and keeps squeezing juice into it when in fact it is full (which a reboot will show)? That's not good for the battery. It should go into trickle charge after reaching 100%..
The process described in the desire forum is also known as formatting the battery. In fact most of battery manufacturers (lithium battery manufacturers) recommend doing this in a slightly different way:
Before first use:
1.) Before powering the device on, plug it in and let it charge until the LED is green (fully charged)
2.) Then take the battery out of the device and wait an hour (to make sure all the chemical processes in the battery are as idle as possible)
3.) Then plug it back in, while still off and let it charge untill green LED
4.) use the device....
You can practice this slightly modified with first step being:
Discharge the battery (by normal use)until only few percent are left (1 - 5 % are OK)
I've done these steps with my Mugen extended battery and I was getting around 4 - 5 days on Legend, now I'm getting 2 - 3 days on Desire S, but the ROM isn't very optimized yet, I believe it will be better in time...
Just one thing... Why is this in Development!?
No Idea.....
can mods move this?
BlaY0 said:
It is only a matter of presentation. It actually doesn't mean your batt is broken. Plug it and charge it overnight. Then discharge only for few percent and plug it back in. It should go to 100%.
Sent from my HTC Legend
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sz1a did this solve your problem? Have the same problem with every firmware i've tried....
peddalion said:
sz1a did this solve your problem? Have the same problem with every firmware i've tried....
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Definitely did not solve it but at least the battery performance is ok. It just stays at 78% for a few hours drops from there. Very weird but as long as the battery doesn't get broken I guess it's ok.
Do you have some 3rd party battery installed in your Legend? I have one 1,5 Ah in mine and it is acting the same way. It doesn't bother me too much coz it was cheap... it lasts 48 hrs with data always on and moderate usage. I noticed this that when I charge it overnight and it reaches 80%, unplugging it stays at 80% for several hrs and just after it starts dropping if I plug it again, meter reaches 100%. It's weird but as I said I can live with that
I've got exactly the same issue with stock 2.2 ROM. I've never rooted or CM my phone; I was wondering if CM would do it, but doesn't look like it.
android forums /htc-legend/265545-battery-doesnt-fully-charge.html
(sorry, I can't post links; maybe an admin can fix the link for me?
This seems to indicate it's a phone hardware fault and requires a new Legend to fix! My big worry is, as stated, that the charging light never goes green; therefore is pumping lots of power into a potentially full battery.
Not sure if this is just with my phone or a general bug with the HTC One so I decided to ask everyone here...
The bug:
While charging my phone got a text so switched it on (from sleep) and noticed the %age - say 88%. Read the text put it back to sleep then got another text straight away. This time I noticed it had gone to 90% - 2% in a matter of seconds. So tried it again - put phone to sleep and switched it on again and same thing - 2% increase to 92%.
I continued this to 100% - green charging LED came on so unplugged and left the phone for 10 minutes or so. When I came back to it the power had dropped to about 93%.
I've tried this a couple of times and each time it's the same.
I've also kept screen on while charging (developer option) and when I've done this it's chatged normally and I have gotten normal usage out of it.
Readig the forums out and about, several people have reported the issue of battery dropping 8% or so and being fully charged if they switch the phone off so I think this may be the mechanism of the faulty stats from HTC stock. Just wated people to test and see if they get the same fault...
My One is 4.4.2, rooted with s-off, stock HTC WWE rom with a few deleted system apps. I neveer noticed the problem in 4.3 rom but that's not to say it wasn't there.
I'm investigating several issues with 4.4.2 battery draining. This is one of them. Another on is that my 'scanning always available' keeps randomly turning on even with all location services switced off. I think HTC (at least here n the UK) sent out the 4.4.2. update far too early...
Having owned HTC devices before, I can tell you you can ignore battery level readings between 90 and 100. Once it's below 90 you are seeing real readings.
On the supersonic (Evo 4G), once it reached 100, the charging logic allowed the phone to secretly discharge even while plugged in. The reading would continue to say 100 and the green light would stay on but in reality your charge could get as low as 90 before the charging logic would actually allow the phone to draw current to recharge the battery up to 100.
As a consequence, whenever you took the battery off the charger you would discover, in the course of a few minutes, your actual charge settled on a random number between 90 and 100.
Naturally this prompted constant complaints from people who claimed their phone did something crazy to burn 8% of the battery in two minutes when in fact all that they were observing was the displayed charge quickly converging on the true charge.
Not saying that's what's happening here, just giving an example of how HTC plays "fast and loose" with battery readings generally, especially as you get over 90.
Good tip on the wifi scanning bug though- that was driving me crazy. Glad to know I'm not alone.
Sent from my HTC One using xda app-developers app
It's very hard to determine the capacity of a battery, especially when it is near capacity and there is fluctuating power draw from it.
You now know how to confuse it. Hence, you also know how to not confuse it.
Also, don't worry about it.
I have an ATT M7 One that is a little under a year old and recently (Past month or so) I have been having really odd battery fluctuations. I’ll link to an imgur album with some of the battery level graphs that I’ve caught in the past few weeks to hopefully help you understand what I’m talking about more clearly since I don’t think I’ll be able to describe them very accurately on my own. So in the first case i’ve encountered I will charge the battery fully, and once the phone is running on battery it will last anywhere from 15 minutes to maybe an hour two and then just die. But when it dies, the battery level still displays 60%-70%.(Images 4,5,6,& 7) Then when I turn the phone back on the battery level will be anywhere from around 0%-20% and will last for another couple of minutes before dying again. There is another case of my battery acting really strange where the battery level will stay at around 50%-60% even though it’s being charged continuously (Right side of Image 1). I don’t know if it’s because my battery’s calibration is off or of the battery is just dying. I really hope the battery isn’t just outright dying; to get to this level of battery instability in under a year seems pretty shocking to me. I should add that i didn’t get any of these problems before I rooted my phone. I didn’t notice it while it was rooted with the stock rom. I initially started noticing the problem after I installed a GPE rom (not exactly sure which). I thought it was just the rom at first but I’ve switched around to different roms and have been getting the same problem. So does anyone know what the problem is or what could have caused it and if it is even fixable at all?
Thanks for any input!
imgur album : http://imgur.com/a/4PmuO
UPDATE: I've performed a factory reset and used the phone as normal while watching battery life. The battery life lasted about an hour and a half, getting down to 80%. Throughout the battery life I was re-installing my apps and one of my restores required a restart. When I restarted my phone, the phone powered on with 60% battery life then died about a minute later.