Battery recharge process bugged - 3.1

I'm going to go out on a limb and propose that the recent problems that people have been having with poor battery life since the 3.1 update are caused by a bug in the battery charging management in the phone's firmware which I speculate was changed in 3.1. Furthermore I think this change sits outside of the normal firmware updates as reverting back to 3.0 *DOES NOT* seem to solve the problem.
Here's my reasoning...
- Not everyone's phone gets hot but they still see charge disappearing in what seems to be an accelerated manner.
- I've noticed my iPhone 'recharge' from 37% to 100% in under an hour while plugged into a USB port on my laptop. This seems very fast, most strange is that getting from 90% to 100% doesn't seem to take any longer than from 30% to 40% which hints that trickle isn't working.
- Some users have had luck by 'forcing' a trickle charge to the iphone using inline hardware and are getting proper battery life. Again hinting that trickle charge management may be broken.
- From what I can see the baseband change doesn't seem related. I updated to 3.1 while retaining baseband 04.26.08 and downgraded back to 3.0.0 and still see the battery problem.
- Turning on and off various features seems to have very mixed results for different people. While disabling features that use power can obviously help battery life, I don't believe this issue is caused by push, wifi, bluetooth etc.
People are focused on the idea the battery is being drained, I propose that the battery is in fact only being partially charged before reporting 100% and ceasing the charging process. This gives the illusion of fast battery draining.
Your thoughts?????
Message was edited by: Apple Aid

Mine is 2 weeks old and gets 3 if I'm lucky. If I use the DVD player I get even worse. Better than my last iBook, but not much. I called Apple and was told that is normal. The ads that say up to 6 hours are if you charge it fully then don't use it. Sounds odd, I know. Look under the Apple in the top left corner.About this Mac. More info. Look under Power. What is your full charge capacity? Should be close to 4400.

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HT1222 Yesterday evening i installed ios 7.2 on my iphone 4 and since then my iphone's screen is stuck on the itunes n a battery recharge sign under it. what should i do?

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I agree it's an interesting problem, but I believe it is technically possible. The man page for 'pmset' has this tantalasing clue:
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hello
Please help me.when battery recharge will over. then after it not recharging the battery of my iphone 5
thanking you

Reset the device by pressing and holding the home and power buttons until the white Apple logo appears.
In the future, post in your native language.

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Hey hey folks.
I was wondering if there's a so called stand-alone battery recharger for the notebook HP Compaq 6510b?
By stand-alone, I mean a charger, that has an adapter to charge a battery that is not connected to the notebook.
I saw those charging bays, but I suppose those are pretty much meant for office use and are therefore quite expensive for personal use.
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Hi G_OfAllTime,
Welcome to the HP Forums!
Your notebook is a commercial unit. I am sorry, but to get your issue more exposure, I would suggest posting it in the commercial forums, since this is a commercial product. You can do this at Commercial Forum/Notebook - HP ProBook, EliteBook, Compaq, Slate/Tablet PC, Armada, LTE
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Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

Source for battery drainage: serious bug discovered

Dear all,
Can you all try the following? I have found a very strange bug draining my MBP's battery significantly.
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- Download and run CoreDuoTemp (0.8) and have a look at the CPU usage in idle state (usually < 3%).
- Disconnect your AC charger and have a look at the time left for running on battery (mine is about 2h30, battery close to fully recharged)
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- Strange thing is: Activity monitor does not report any significant processor usage (< 5%), thus contradicting what CoreDuoTemp says.
- You'd suspect a bug in CoreDuoTemp -- which on itself is not unlikely, given that it's relying on very new and experimental (kernel?) drivers. However, have a look at the time left with your battery: mine dropped immediately back to 1h30 (1h less than a couple of seconds ago), only due to starting Mail.
Huh? What is going on? What does CoreDuoTemp detect that Activity Monitor cannot see? I suspect CoreDuoTemp being correct, because the battery time left indication also dropped significantly (indicating that something is eating the CPU).
Could this explain why some people indicate terrible battery lengths of 2h and less? I know not all people use Apple Mail, so this might explain it...
Please note that I have installed all updates, except for the Keyboard update (because this would result in the Mirror widget trick not working anymore).<br>
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Yes I did. I've got menumeters running as well. No inconsistencies.
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Hello,
I have recently bought a 610 handset and I wanted to ask the fellow users how much battery life they are getting. I usually have to recharge it fully once a day, I make like 4-5 phone calls and access internet over wifi (say 3-4 hours). I don't play any songs / videos etc. I have turned of bluetooth and battery saver mode is on. Also I have set brightness to LOW.
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Hi wplumia610,
Thank you for your post and welcome to the forums!
When you are using applications or features that require a lot of processing power, such as gaming and internet sharing, the handset is bound to get heated up. This is perfectly normal and the phone will cool down after the processor intensive task is over.
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To see the official stand-by and talk times, please see here.
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If you find this post helpful, a click upon the white star at bottom would always be appreciated.
If it also solves your problem, clicking ACCEPT AS SOLUTION below it will benefit other users!

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Hello All,
I think I've found a bug with Leopard concerning laptops. I started a thread which I'll link to below.
http://discussions.apple.com/thread.jspa?threadID=1219413
Other people have had this same issue - I've seen it on a few different posts. Does anyone know the best way to contact Apple regarding this? I don't know how active they are in reading this forum, and I want to make sure they know about this, as it's probably something that can be fixed with an OS update.
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Posted Nov 4th 2007...
Hello,
I just got one of the new November 07 MacBooks. The machine is great, and screams with the pre-installed Leopard.
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Problem is, I never got the "Low Battery" warning, or even the sleep warning. At around 10 minutes of power left, I simply got a kernel panic. A few seconds later, the laptop just switched off.
I plugged in again for a few minutes, then ran it down again to see if I could reproduce the error, and I did get the low battery warning.
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Thanks!
Nov 12th, 2007...
Well, It's been a few cycles since the first one, and all is well. I'm getting the low battery warning when it runs low, and no kernel panics (knocking on all available wood). If I start having problems in the future, I'll update this thread, but for now I'm marking it answered. It was probably Leopard not reading the uncalibrated battery correctly.
Dec, 31st 2007.....
Hello all,
Short followup here: I've have 30 successful cycles after the first couple of kernel panics, and it's time to calibrate the battery again. I tried to do it yesterday - charged the battery all the way, used the macbook while plugged in for two hours, unplugged the adapter and continued to use it until I got the low battery warning. I shut down everything and let it sit - waiting for it to go to sleep. Instead, I got a kernel panic, and the computer shut down. It would not restart until I plugged it in, but I know there was some battery left, since it panicked at 2% battery. I let it charge for an hour or so, then used it again until I got the low battery warning. This time, it went down to 0%, but panicked and shut down instead of going to sleep.
I'm trying this again, after charging all the way last night, and just leaving it on to drain. I'm at 20% right now, and I'll post to let you know what happened.
Dec 31st, 2007....
Hello All - I think I've figured this out. Looks like a software bug with Leopard.
I did get another kernel panic just now at 0%, after the low battery warning. But then I had a revelation. In trying to calibrate the battery, I had set my energy saver settings to never sleep under the battery settings - so I could leave the notebook overnight to drain. I gave it a bit of a charge, then set the battery setting (in energy saver) to sleep after 20 minutes. I restarted, used the computer for a while, got the low battery warning, the computer went down to 0%, then went to sleep as it should.
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For those having the problem, make sure your battery settings under energy saver are set to allow sleep after a time.

Start here:
_http://www.apple.com/feedback/macbook.html_
Joe

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hi people..is anybody reading me...???? ....
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