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Applelinks suggestion for battery
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Fresh-Faced Recruit
Join Date: Jan 2003
Location: St. Louis
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(
Last edited by 007; Feb 13, 2003 at 02:46 PM.
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Forum Regular
Join Date: Aug 2000
Location: middlesex, nj, usa
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How does one "calibrate" the battery?
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Mac Elite
Join Date: Jan 2001
Location: Kansas City, Mo
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Unplug your powerbook and use only battery power. Make sure your energy settings are such that your harddrive won't shut off or go to sleep. When you eventually get the low battery warning, disregard it and let the computer keep running. You are trying to drain the battery until the screen actually goes dark and the computer shuts itself off.
I watched a DVD with my daughter to do this.
I am going to try this again. I noticed today that when I am plugged in after it is supposedly charged that my fan was constantly running. Unplugged it and after awhile fan stopped.
Maybe there is something to this?
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Forum Regular
Join Date: Jan 2003
Location: Orange County, CA
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To calibrate the battery, use the laptop on battery power until it tells you it is out of power and goes to sleep.
Then plug it in and let it charge fully.
Then use it again on battery power until it goes to sleep again.
Charge it fully one more time, and you're ready to go.
Makes sense to me, "teaching" the battery and computer what a "full" and "empty" battery means.
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"Sawtooth" G4 450 desktop + SuperDrive
"Pismo" G3 500 PowerBook SOLD!
"Hammerhead" G4 PowerBook arrived!
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Mac Elite
Join Date: Jan 2001
Location: Kansas City, Mo
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So losjackal,
Did I miss a step? I didn't drain it down a second time when I did it.
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Forum Regular
Join Date: Jan 2003
Location: Orange County, CA
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Originally posted by kcmac:
So losjackal,
Did I miss a step? I didn't drain it down a second time when I did it.
The primary reason to calibrate is to maximize the amount of juice you get out of a battery. You're calibrating it so it clearly knows where the endpoints are.
I've read people have had more success (getting the adapter light to go green properly when charging) by doing it twice. I just learned about calibrating recently as well, and the original instructions I read said to do it twice.
Heck, I might do it three times when I get my 17"! I'm crazy like that.
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"Sawtooth" G4 450 desktop + SuperDrive
"Pismo" G3 500 PowerBook SOLD!
"Hammerhead" G4 PowerBook arrived!
www.canyouhearmenow.com
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Senior User
Join Date: Feb 2001
Location: Deer Crossing, CT
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I don't get it. Don't you guys read the manual that comes with your very expensive machines? Calibrating the battery is clearly explained in the owner's manual!
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Fresh-Faced Recruit
Join Date: Jan 2003
Location: St. Louis
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Originally posted by PBG4 User:
I don't get it. Don't you guys read the manual that comes with your very expensive machines? Calibrating the battery is clearly explained in the owner's manual!
I posted it as a potential 'remedy' to that ever popular heat issue....
I know you're supposed to calibrate it...and I don't even own an Apple yet...
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Mac Elite
Join Date: Jan 2001
Location: Kansas City, Mo
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I read the manual. But I must have misunderstood. I did drain it down all the way and then charged it back up.
Just not the second time.
BTW, the manual for the 12" PB is pretty nice.
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Forum Regular
Join Date: Aug 2000
Location: middlesex, nj, usa
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Originally posted by PBG4 User:
I don't get it. Don't you guys read the manual that comes with your very expensive machines? Calibrating the battery is clearly explained in the owner's manual!
NOPE
Too busy playing with the PB to actually open the manual (and my it was a big one - much bigger than the one I got with my TiPB 500)
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Mac Elite
Join Date: Jan 2001
Location: Kansas City, Mo
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My initial impressions are that recalibrating the battery properly does decrease the heat of the powerbook.
I repeated the drain down/recharge procedure 3 times.
My battery status now goes up to 100%, light turns green, and it now the power adaptor cools down while still plugged after completing the charge.
Please note that the manual that comes with the PB does say you only have to drain it down once from a fully charged state. That is what I did initially and apparently draining down more than once works much better.
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