Using MB mostly w/ power adapter, how do I maintain battery?

I use my MB at work plugged in with battery,and of course, once in a while take my MB for a trot, and like to make sure it is ready for normal use with a charged battery, however , I am concerned that running my MB w/battery with power adapter plugged in will lessen the charge and effectiveness of the battery when I decide to use it away from the office. I don't really want to have to take the
battery out and then put it back in when I decide to go somewhere with it. Is there a setting where I can switch just to use my MB with power from adapter, without having an influence on my battery,, or will it be ok to keep my MB plugged in w/battery,, and not have any detrimental effect on battery?

You should always leave the battery in. When it's plugged in and fully charged, your MacBook will not put any strain on the battery. Follow the links below for more information about your battery.
[*About your Battery*|http://www.apple.com/batteries/notebooks.html]
[*How to Calibrate your Battery*|http://support.apple.com/kb/HT1490]
[*Maximizing your Battery Charge*|http://support.apple.com/kb/HT1446]

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HT5234 which apple products use my 65w portable power adapter, model a1021? .

i have never used apple computers.

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"Where used:
PowerBook G4: PowerBook G4, PowerBook G4 (Gigabit Ethernet), PowerBook G4 (DVI), PowerBook G4 (1GHz/867MHz), PowerBook G4 (12-inch), PowerBook G4 (17-inch), PowerBook G4 (15-inch FW800), PowerBook G4 (12-inch DVI), PowerBook G4 (12-inch 1.33Ghz), PowerBook G4 (17-inch 1.33Ghz), PowerBook G4 (15-inch 1.5/1.33GHz), PowerBook G4 (17-inch 1.5Ghz), PowerBook G4 (12-inch 1.5Ghz), PowerBook G4 (15-inch 1.67/1.5Ghz), PowerBook G4 (15-inch Double-Layer SD), PowerBook G4 (17-inch 1.67Ghz), PowerBook G4 (17-inch Double-Layer SD), PowerBook G4 (12-Inch Double Layer SD)
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iBook G3: iBook (Late 2001), iBook (14.1 LCD 16 VRAM), iBook (14.1 LCD 32 VRAM), iBook (14.1 LCD 900 MHz 32 VRAM), iBook (14.1 LCD), iBook (16 VRAM), iBook (32 VRAM), iBook (800 MHz 32 VRAM), iBook (900 MHz 32 VRAM), iBook (Opaque 16 VRAM), iBook (Dual USB)
From this site: http://www.dvwarehouse.com/A1021---M8943---Apple-65W-AC-Adapter-for-PowerBook-G4 --iBook---New-p-26934.html

All of a sudden even using the power adapter its only at 57% after 8 hours

I have my powerbook 1.67ghz, its plugged in and i have a couple of adapters so i dont think it is the power adapter.
it has been plugged in and only records 57% power. What does anyone think? it fluctuates between GREEN and AMBER light on the power adapter.
On the back of the computer itself i see some green lights but i dont know what they mean.
here are some of my stats: It says its NOT charging and its plugged in
Battery Information:
Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 3888
Remaining Capacity (mAh): 2228
Amperage (mA): 0
Voltage (mV): 11798
Cycle Count: 33
AC Charger Information:
AC Charger (Watts): 50
Connected: Yes
Charging: No
please help
thanks
scott

Hi, Scott.
yes i am using the 65 watt power adapter...
Not when you ran System Profiler and got the results you quoted above, you weren't — at least not if System Profiler can be believed. Set the 50W adapter aside and don't use it with the Powerbook. If your alleged 65W adapter is identified by SP as a 50W adapter, it needs to be replaced with a proper one.
If you "really never use it unplugged," that may explain why your Powerbook is misbehaving. Powerbook batteries want to be used. If you don't completely discharge and recharge your battery every two to four weeks, its charge-level calibration will become very inaccurate, and it may lose capacity faster than it should.
http://www.apple.com/batteries/notebooks.html
http://support.apple.com/kb/HT1490
If the plug on the 65W adapter fits your iBook (i.e., if it's an iBook G4 rather than a G3), test the 65W adapter to make sure it charges the iBook battery properly. (This will do neither the adapter nor the iBook any harm.) If it does, it's almost certainly not at fault. The other three components of the Powerbook's charging system are the battery, the logic board, and the DC-in/Sound card. Plug the 65W adapter into a wall socket that you know is reliable and not switched. Reset your Powerbook's Power Management Unit, following the instructions in this article for your particular model. Connect the adapter to the Powerbook and let it charge for twelve hours without turning it on. Post back to let us know the results.
Other questions:
How old is your battery?
Was this battery supplied to you under Apple's replacement program for original PB batteries within a certain serial-number range? Many of the replacement batteries issued under that program seem to have been defective. They lose capacity very rapidly and prematurely (which yours hasn't done) and/or they refuse to charge even when they appear to be in good health (which yours may be doing). If your battery was supplied under the replacement program, it falls under greater suspicion.
Message was edited by: eww

Using MB mostly w/ power adapter, how do I maintain battery?

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