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.
Related
In addition to my other issues, refer to thread http://forum.xda-developers.com/viewtopic.php?t=43272 (ERROR: ITWriteDisk - An internal error occurred), I have noticed that battery meter on my 8125 flashed to the the imate aku2 rom, is always at 100%. I'm unsure whether this will effect charging since when I plug in the charger, the led turns green immediately and stops charging, and I have had the device turned on for 4 or 5 hours disabling all the power saving features, leaving the backlight on, turned on BT and wifi, and its still at 100%... either its a great battery, or somethings screwy.
small update.
after about 5 hours the battery meter started to drop quickly. Although this is good, the problem that comes up for the first 5 hours, you cannot charge the device as it thinks the battery is full.
Am I the only one experiencing this?
same here.... after 24 hours battery meter droped from 100 to 94
bafore it was 90 after 24 hours
maybe they improved something.. thats why it does not go so fast as before
I think it is the fact that the new rom seems to be much better with power consumption. I am getting almost a 50% gain between charges due to my pattern of usage!!! Very happy!
I'm more then happy at the battery improvement, what I am not happy about is that if this is a bug (granted there is improvement), the problem becomes when charging the phone, so I have it for 12 hours, its still showing 100%, I have an offsite meeting the next day, and would not be able to charge the phone for the entire day, the battery will start to drop very fast since the phone thought it was fully charged, when it really was not... I'm confusing myself here, but I think you understand what I am saying.
Also, while my battery was at 84%, I did a soft reset, when the phone came back up, it showed 100% battery and refused to charge... this is a problem.
You might want to inquire about a replacement device or battery - in case it's not the sotware.
My laptop has this issue. It's always been on external power and somehow that's weirded out the control circuit telling the machine how full the battery is. It will read 100%, but it's actually at 75%. Then if I disconnect it, it will go down to 5% in 8 minutes. However, it will happily run for 3 hours+ on that last 5%. Similarly, if I hook it back up to the charger, it goes to 99% (leaving the battery indicator light amber) in another 8 minutes. Takes many hours more for it to get back to 100% (making the battery indicator light blue).
With any luck the control circuit will be in the battery (I believe it is), and the easiest way to check is to exchange your battery for a temporary new one and see if the problem goes away.
Bebbo said:
I think it is the fact that the new rom seems to be much better with power consumption. I am getting almost a 50% gain between charges due to my pattern of usage!!! Very happy!
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Agreed.
If you think your battery is stuck - just do this little test.
Turn on Bluetooth, WiFi, make a GPRS connection, and set back light at 100% and don't let them turn off or let the unit power off. The battery should drain pretty quickly in this senario.
I thought mine was stuck, but it dropped 5% in less than 10 min in this mode.
FYI,
JB
I'm not so sure its the battery.. another issue that I just noticed, is taht even though the backlight is turning off, the screen itself is not turning off after the designated time I set...... this is rather bothersome as if I forgot to manually turn off the screen.. it remains on constantly.
Even with my original Qtek 9100 EN ROM, the screen doesn't turn off - only backlight. If you want the screen to be off, you'd need to go to Standby, or use a third party utility to turn the screen entirely off.
Although lithium batteries are best kept at a full charge, they should be periodically drained to recalibrate the fuel gauge.
http://www.batteryuniversity.com/parttwo-34.htm
I was also having this problem but after about 2 days use it began to go down. My G3 device seemed to hang at 100% and drop quickly after it hits 25%. I believe this must be a hardware issue as I now have a G4 (setup identically to the G3) and it does not have this issue.
i am having the same issue but i believe it the battery because my phone 8 months old and if you read the battery thread it has all the same issues your having
I think I might have a problem with my battery, but I'm not sure. I had it on the charger for 12 hours. So the battery should be full. When I took it off the charger, the status bar indicated that it had dropped down a notch. Is this normal? I was expecting the battery indicator to be fully shaded in white.
Ok. So I restarted the phone. Now the battery indicator is showing that it's completely full. Hmmm.
This happened to me too today. I'll try a reboot...
Sent from my HD7 using Board Express
Please remember that your battery needs some time to kick in and settle before you'll get full charges/power and correct indicators. If you just got your phone on Monday, wait about a week, and your phone should last longer and display more accurate approximation of battery life.
If it has been much past a week though, and your battery life is still significantly poor, then it may be your battery, device, or how you have the system configured.
I've commented on this a few times before, the same thing happens to me.
Its obviously a bug with the OS or something as I am now on my second HD7 and it does exactly the same.
let the phone battery drain out then let the phone charge completely with out using it. You will see a huge improvement on your battery life and the phone will charge alot quicker. That will also fix the battery indicator bug.
Ariel is right.
Remember for best optimization of any battery is when u use it 0% to 100% and then let is drain to 0% again.
i have the phone since a week with 5 charges i am not happy YET with the battery. Hope it opens up as ppl are saing.
I forced my battery dry a couple of times between charges using the HTC Flashlight app.
Run the app on maximum beam (you might have to wake it up every now and again) and the battery drains very quickly. I turned on wifi and set some music playing as well for good measure.
Then charge using the supplied charger rather than a PC USB connection. I'm not sure if that's meant to make a difference but mine charges up much faster that way.
Charging your phone through USB to PC always takes longer then using the charger
I'm getting about 15 hours of battery per charge. That's with moderate use (text messages, e-mail web browsing, a couple phone calls). This is MUCH better than when I first got my HD2. The battery would drain about 1% every 3 minutes. It was absurd. I'm pretty content with the battery life thus far. Windows Phone 7 is such a pleasure to use.
friend has an evo and he's trying to sell ot to get an hd7 lmao
Fuse8499 said:
I think I might have a problem with my battery, but I'm not sure. I had it on the charger for 12 hours. So the battery should be full. When I took it off the charger, the status bar indicated that it had dropped down a notch. Is this normal? I was expecting the battery indicator to be fully shaded in white.
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I got the HTC Surround and I noticed the same thing. After coming off a full charge (the whole night) I loose what looks like 5% of the charge within the first 5 minutes. Sometimes it's after as much as replying to a text.
Hopefully the battery has to 'settle in', as others have suggested.
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.
Here I was, just using BlinkFeed, doing a bit of web browsing... I didn't have the battery's state in my mind, as I saw a half-full icon on the top right. Suddenly, beep, scrolly animation, cutoff. What? I rebooted the phone while tethered to power after waiting for the blinking orange LED to glow steady, and opened my task manager app, which also tracks battery life. It had died at around 50%. I've read other threads of people's battery things being ill-calibrated and missing 10-20%... but 50%? Really?
But then again, I haven't normally been charging the device fully. The same task manager reports 100% power being 4.3 volts, and I've read that 4.3 volts on a li-poly chemistry reduces its useful life by 50% when compared to 4.2 volts, so I've typically been charging to 80-85%. But I've had this happen several times, and I do charge to 100% after it does happen. I wouldn't think that 5-10 incomplete charge cycles like this would be enough to throw the gauge off so drastically.
This, in addition to the perpetual-suiciding problem my phone has had since the second-to-most-recent minor OTA Sprint update...
Wipe battery stats?
Sent from my HTCONE using xda premium
flyboy21141 said:
Here I was, just using BlinkFeed, doing a bit of web browsing... I didn't have the battery's state in my mind, as I saw a half-full icon on the top right. Suddenly, beep, scrolly animation, cutoff. What? I rebooted the phone while tethered to power after waiting for the blinking orange LED to glow steady, and opened my task manager app, which also tracks battery life. It had died at around 50%. I've read other threads of people's battery things being ill-calibrated and missing 10-20%... but 50%? Really?
But then again, I haven't normally been charging the device fully. The same task manager reports 100% power being 4.3 volts, and I've read that 4.3 volts on a li-poly chemistry reduces its useful life by 50% when compared to 4.2 volts, so I've typically been charging to 80-85%. But I've had this happen several times, and I do charge to 100% after it does happen. I wouldn't think that 5-10 incomplete charge cycles like this would be enough to throw the gauge off so drastically.
This, in addition to the perpetual-suiciding problem my phone has had since the second-to-most-recent minor OTA Sprint update...
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The battery stats have nothing to do with battery life. They are just statistics used to diagnose. Lithium ion batteries also do not have a memory and don't really need calibrating. The type of issue you are having stems from one of two things; Bad charger or bad batter. Bad batter would most likely be something straight from the mfr. Bad charger would be obvious. Try using the standard HTC charger in a wall outlet only for a few days or a week and see if it happens again. Sometimes this could be a one time thing meaning what I call a "bad charge." It will go away after a "good charge." Just eliminate variables by using the same charger in the wall every time and charge for the same amount of time and if the problem goes away in a week then you have your answer : )
Btw i'm a long time Sprint tech and I specialize in battery life. Just in case you need educated advice.
After the phone-death that I captured above, I charged the device to 100%, and then left it to drain until death again. It lasted about two days with very light use, dying when it reported 10%, again with zero warning other than the ~15% low battery indication. I know that deep-cycling these batteries isn't healthy for them, but it seems to me that the cycle helped a bit.
However, I do still feel concern about the reported full-charge voltage, ~4.3 volts. Does such a voltage not severely reduce the number of cycles the battery can go through in its lifetime? Also, what is supposed to be the cutoff voltage for this battery chemistry? I thought it could go down to ~3.0 volts? My phone seems to be cutting off at a reported 3.5 volts.
That, and my perpetual-suiciding problem. Though, I'm about to encounter a change of scenery that will take me downtown, so I'll hold off on complaining more about that until I see whether or not the signal strength influences that.
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.