Battery Level dropping

Hi, I use my laptop at home, plugged in to the mains all the time. It is 6 months old. The battery charge level seems to be dropping every day - now it only reads 71%.
I have run the battery right down and recharged but it still never reaches 100 (or 99%) any more. The max is around 84%. What should I do?
g4 12 Mac OS X (10.4)

I've noticed the same problem recently. I purchased my PowerBook new in April. I'm interested to see if this is a software issue.

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It's understandable that the batterymeter is not linear (atleast the charge/discharge rates are not). But what bugs me are those sudden erratic drops within minutes (a couple of minutes at times). Anyone who has spent a few days with a dying (rechargeable) battery would know what I'm talking about. It's not a good feeling when u r away from a charge source, and you decide to use one of those power hungry things (like Wifi/GPS) thinking you still have sufficient juice left...and then bam! ... the low battery warning! you just switch off everything, and hope that it lasts till you reach the next oasis. I guess I'd have to analyze this a bit more to understand if its some specific app that causes such behaviour (as mentioned in my original post, i doubt the GPS apps currently). If it happens too often, and even with 'normal' voice+text kind of usage scenarios, its time see Nokia Care I guess. The reason for this post is to know if this behaviour is observed by other N97 mini users as well..then I know there's no point in taking it to Nokia Care.

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I typically get, oh, about 3 weeks off of a pair of AA alkaline 1.5V batteries on my magic mouse.
What I don't understand though is not really being able to track the battery level in the bluetooth menu on my iMac 21.5".
The battery level even now is at 100%. What happens is is that it stays at 100% for several weeks and then all of a sudden drops to 7% or so, and I get a low battery warning. Then after a couple of days the battery will drain out.
After it drops down to 7% I can usually track the battery drain in the menu. But I never see it at 90% or 80% or 50%, etc. It just drops down suddenly near the end of the battery life.
Do other people see more continuous changes of the battery level?
The same thing happens with my bluetooth Apple keyboard that came with the iMac. Right now it is showing a level of 100%. It typically lasts for months instead of weeks, but I will never see an in-between battery level value until I get a low-battery warning.
I'm thinking of rechargeable batteries for my magic mouse. But I see too many negatives posted here in the forums about that, so I am hesitant about investing in those batteries and a charger if it's not going to work well.
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Maybe it's a Mac model issue? I'm running the late 2009 model, purchased in February 2010, and running Lion.
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I have a Satellite 1950-902. I was wondering if someone could help with the following problem/unusual behaviour that began about a month ago:
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I have noticed that the battery level (indicated in the menu bar) drops from 100% (after recharge) slowly to 99%, then 98% while the machine stays plugged in! I did not let it go further so I don't know if it would further discharge.
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Battery level dropping under load while plugged in

Hi all,
I'm, the otherwise happy owner of a retina Macbook Pro form July 2014 (with a 85w power supply)
I have the issue that, whenever my computer is under load and uses the discrete graphics card, its dropping power - even though the charger was connected.I know the discrete graphics card uses up more power, but honestly it cannot be true that if I play a game in high settings on the macbook (which only has a keyboard, mouse and charger connected in that case), then the battery drops... It cannot sustain itself or what? (I have never experienced this with any other laptop, so I hope for the love of God, this is not what to expect).
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Thanks Lawrence. We use CommonTime mSuite to integrate our Lotus Notes with iPhone's Calendar, Contacts and email using the Exchange iPhone connector, and I am one of the administrators for mSuite. I have deleted and re-added the Exchange account on my 5s running IOS 8 multiple times, and have done the same on an iPad Gen 3 and an iPad Mini. All with the same results. (The results are that email comes down, but calendar and contacts do not, and email will reload every so often.) I've deleted the account on the mNotes server a couple of times as well, to no avail. I have an old iPhone 4 still running IOS 7.1.2, and setting the exchange account up on it, immediately everything came down successfully from Lotus Notes onto the old iPhone. This is definitely an IOS 8/CommonTime issue, and CommonTime has acknowledged that there is a problem, though they have as yet no fix. The one good thing to come of this is I now know what was killing my battery. After 7 hours of use last night (regular use on Facebook and Feedly) my battery had only gone down to 83%. Other of our 46 users who have upgraded to IOS 8 have the same problem as I.

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hi guys,
Is it just the unit that I got or are we looking here at much wider issue?
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I have got a new iMAC machine 21.5" , almost 6 weeks since. I am a regular user. The machine has Mountain Lion OS 10.8.2.
In System Preferences, I can see the Battery level for Blue tooth mouse dropping to 57%, but the keyboard has been showing 100% all the time.
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All of a sudden the battery level of my iPhone 5 started to go down from %100 to 30, 20, 10 then 1% in less that a minute and then shuts down!! This happens sometimes after just a few minutes of unplugging the phone from the charger. This problem appeared only two weeks ago so I spent sometime searching for a solution or similar stories, and am certain that the battery charge level calibration in the new iPhone software has a bug in it..!! I am sure the capacity of the battery is fine, its just the charge level drops for some reason and the phone shuts down immediately though the battery is still full because when I plug it to the charger it takes a minute then it turns on showing 100% charge !!

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Keyboard battery level stuck at 100% then suddenly dropped to 67%. Turned keyboard off then on and since then the level has been stuck on 100%.
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HI,
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Try resetting the PRAM to see if makes a difference in the battery levels.
http://support.apple.com/kb/HT1379
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I'm using a Magic Trackpad which sadly exists in BT version only.
Under 10.6, I'd be informed once in a while that the battery level was getting low, and those notifications would be once a day at most, and disappear automatically.
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Battery Level dropping

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