Battery life suddenly cut in half

just yesterday, during my first class, i noticed that i only had about 2 hours left on my battery-- this was just about 15 minutes after unplugging my fully charged macbook. the same thing happened today...i don't know what's going on, i used to get around 4 hours with it. i haven't changed any habits-- i dim the screen as much as possible, etc.
i'm calibrating the battery right now...will that work or is something else wrong?

Hi,
Macbook battery life arouse lot of feedback. My experience is after re-calibration the total capcity of battery losts at least 100mAh. But if just connect to internet via airport, still I can manage to use it with over 3hrs. But when I run photoshops or bigger size file, the time shown on menu bar dropped tremendously to 1:50hr somethg from 3:03hr. But this battery seems to last quite good at last few %. My experiences on powerbook G4 1G, with 1.25G DDR ram, when battery drops to 10% or 10 minutes, the Powerbook will go to sleep soon. But for Macbook, when the indicator shows 0:09 hr remained, if using for internet it can still last for more than 15minutes. I also asked Apple HK technician about the battery drop problem, they said this is just rough estimation, sometimes not accurate, and it is normal that battery sometimes can't charged back 100% full unless after recalibration. If ur cases after full charge, check if ur battery is 100% or below 90% uisng coconut, Apple said if under warranty the battery drop below 90% for full charge, u can replace the battery in Apple repair center. This is the case in HK , I am not sure the practise in ur country.
Nobu

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After upgrading to ios6, my battery life is cut in half.

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IPhone 4 Battery life suddenly dropped by half

Hi Everyone,
I have a 3 month old iPhone 4 running IOS 4.2.1 since it became available. The battery had been performing fine till 2 days ago. Now I start out with it fully charged in the morning and the battery had died at 2pm in the afternoon when all I've done is make a few minutes of phone calls and sent a few texts. Anyone have any ideas on what i can do about it?

Hi zzzaaazzz,
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Battery Life suddenly reduced

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Lots of people have lots of ideas:
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https://discussions.apple.com/thread/3484755?tstart=0
https://discussions.apple.com/thread/3481668?tstart=0
https://discussions.apple.com/thread/3518760?tstart=0
https://discussions.apple.com/thread/2755090?tstart=0
https://discussions.apple.com/thread/3507356?tstart=30
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https://discussions.apple.com/thread/3492588?tstart=60
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Battery life suddenly terrible on iPhone 4

I've been having my iPhone 4 for about a year and a half now and never had any issues with the battery life. But yesterday, the battery life suddenly decreased exponentially. I typically do a "hard reset" on my phone every few days because it tends to get slow or buggy after a while.
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Battery life reduced by nearly half after Maverick upgrade

Hey guys,
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SMC reset
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Press the power button to turn on the computer.
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Hey guys,
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Processes: 87 total, 5 running, 82 sleeping, 472 threads                                                                                                                                                                            12:20:54
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Hardware Overview:
Model Name:          MacBook Pro
Model Identifier:          MacBookPro8,2
Processor Name:          Intel Core i7
Processor Speed:          2 GHz
Number of Processors:          1
Total Number of Cores:          4
L2 Cache (per Core):          256 KB
L3 Cache:          6 MB
Memory:          4 GB
Boot ROM Version:          MBP81.0047.B04
SMC Version (system):          1.69f1
Serial Number (system):          C0***V
Hardware UUID:          0DCE12E1-6114-53C0-B618-CB75D451C706
Sudden Motion Sensor:
State:          Enabled
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Hi CollinGCC78,
It sounds like you have been on the right track in troubleshooting this issue. If you are still having issues, you may want to double-check the steps outlined in the following article, in order if possible (apologies for replicating any steps you have already taken):
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Hi
I had similar issue I went to Microsoft store,they didn't understand the problem.
they said background tasks, WiFi,location service etc. Everything was offline.
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No word from Nokia yet., Wireless charger doesn't work well.
Also when i tried logging in from Lumia 920 to post this message, the popup login on the sign in doesnt work. Also when you post the scrolling doesnt work really well like on the desktop. Not sure if its the site issue or IE10 issue
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Battery life sudden drop off!

Hi all i have had my iphone4 for about 3 months with no problems at all! in fact it been great. But i charged it up last night as normal and went out for the day and notice that the battery was going flat very fast?
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I had a 3gs before this (my wife has it now) and it is still as good as new and thats a year old or more.
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Battery life suddenly terrible, apple care expired in September but still 10 months on my contract?

Hi there,
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Battery life issue related to display/graphics?

Hi
I bought a refurbished macbook pro last May. And the battery didn't even last 2 hours and half, which i found it weird since the macbook pro i had before(2007 model) had battery life of 3hours and half.
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Try using FM 'REUSE_ALV_POPUP_TO_SELECT'.
Sample code:
REPORT ZALV_POPUP_TO_SELECT.
TYPE-POOLS: SLIS.
DATA: GT_OUTTAB TYPE PA0008 OCCURS 0,
      GS_PRIVATE TYPE SLIS_DATA_CALLER_EXIT,
      GS_SELFIELD TYPE SLIS_SELFIELD,
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PARAMETERS: P_TITLE TYPE SY-TITLE.
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SELECT * FROM pa0008 INTO TABLE GT_OUTTAB UP TO 100 ROWS
           where endda = '99991231'.
CALL FUNCTION 'REUSE_ALV_POPUP_TO_SELECT'
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          I_SCREEN_START_LINE     = 0
          I_SCREEN_END_COLUMN     = 0
          I_SCREEN_END_LINE       = 0
          I_CHECKBOX_FIELDNAME    =
          I_LINEMARK_FIELDNAME    =
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          IT_FIELDCAT             =
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          I_CALLBACK_PROGRAM      =
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            IS_PRIVATE              = GS_PRIVATE
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            E_EXIT                  = G_EXIT
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       EXCEPTIONS
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IF SY-SUBRC <> 0.
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ENDIF.
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Battery Life significantly! reduced just by loading Maverick

So when will Apple address this major issue?
Just do a search and see that a lot of people have experienced this. My battery life was cut by 2/3 the moment I loaded Maverick. I loaded it based on the promise of improved battery life. THIS IS A LAPTOP. BATTERY LIFE IS EVERYTHING!!!!
HAS ANYONE FOUND A REAL SOLUTION? Everything I read are well meaning people offering standard advice about battery life. Please do not add more standard book advice here (i.e. close programs you are not using, etc. duh). Please respond to what we are saying, "My battery life was cut by 2/3 the moment I loaded Maverick." How do I fix it?

I haven't had any problem with my battery so far. it's just probably that you been playing around with it too much. besides with the new apps store and the applications it might take more juice now.

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First of all, I'm not 100% sure if my ipod is fifth generation... it's a 30 GB and I've had it since December 2006. This just seemed to be the only category it fit into.
But here we go: I have two major problems with my ipod that have arisen in only a period of a couple days.
First of all, my battery life suddenly got REALLY REALLY bad. I know there are already a bunch of threads with people complaining about their battery life, but mine is much worse. The battery life did progressively get a little worse over the past few weeks, but it was nothing major. But I turned my ipod on the other day, RIGHT after fully charging it, mind you, and within 2-3 minutes the battery was halfway discharged and in about 5 minutes it was almost dead.
And a couple of times, I had my ipod plugged into my iBook to charge, and the iBook went into sleep mode because I left it alone for a while. But after a couple hours I came back and the battery level was LOWER than when I plugged it in!!!! What's going on with this thing?
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Message was edited by: tyty415

I've had both exact problems (listed below) within days of each other just like you. This is extremely effing frustrating and it appears Apple isn't doing sh|t about it.
Problem 1: Battery constantly discharges even when ipod is turned off.
Problem 2: After upgrading firmware to 1.2.2, all my content (songs, podcasts, everything) was gone.
I'm glad to say I was able to fix problem 2 after reading about reverting back to version 1.2.1. There are instructions in this forum on how to do it. If you are like me, you'll have to download the 1.2.1 files from Apple's website because they were no longer on my computer.
This dieing/dead battery problem is a major effing pain in the a$$. Like you say, the effing thing is dead after minutes. The only way it can be used for any length of time is to leave it plugged in to a charger.
No one seems to have a solution which is even more upsetting than the problem. Hey Apple, I want my money back!
DM

Battery life suddenly cut in half

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