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12" powerbook battery life decreased a LOT
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Fresh-Faced Recruit
Join Date: Nov 2003
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I am not sure if this has been posted. I did a search but didn't find it.anyways here it goes:
My 12" pb was mostly used with charger for the past year but when I did use the battery it lasted me over 3 hours easily. Now that I've got a wireless router I've used it on battery a lot more. At first a couple times it just went to sleep suddenly with battery on 60% or so but I did a PMU reset and it does'n thappen anymore. now it lasts just over an hour on the battery. What happened? I think 2hours is significant. I know airport extreme uses battery and all but it battery life dropped 2 hours.
I didn't buy apple care so can't return to apple. Any suggestions on how i can fix/improve this would be appreciated.
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Addicted to MacNN
Join Date: Mar 2002
Location: Winnipeg
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Well, if you used it primarily plugged in for the whole year, that probably wasn't so grand for your battery now. So it very well could be that your battery has just gotten old and crappy. Make sure you've installed all the recent updates, for things like battery firmware from software update. If the problem is still there, I think you might want to go out and spend the 129 bucks to get a new one. Also do you have the processor set to reduce power when on AirPort? How bout turning down your screen? There are lots of tricks you can do to reduce power consumption.
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Forum Regular
Join Date: Nov 1999
Location: Glasgow, Scotland
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I've noticed a significant decrease in my PowerBook's battery also and I guess it can be attributed to keeping it plugged in a lot of the time also. My Capacity is now under half of what it used to be and I only got about 90mins of battery life.
"IOBatteryInfo" = ({"Capacity"=2084,"Amperage"=0,"Current"=2062,"Vol tage"=12384,"Flags"=838860805})
Does anyone know if AppleCare covers the battery for the first year only or the second year also?
Cheers,
Neil
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Forum Regular
Join Date: Oct 2003
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There is another thred that has this conversation a couple lines down. There is some trouble shooting things in there you can try. Also OWC sells a high capicity battery for the 12inch now.
Jerr
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Grizzled Veteran
Join Date: Feb 2003
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Originally posted by t500:
Also OWC sells a high capicity battery for the 12inch now.
Jerr
If this is what you mean, then I don't see where are the batteries for 12" Powerbooks.
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Posting Junkie
Join Date: Nov 2000
Location: in front of my Mac
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Originally posted by Pringlis:
"IOBatteryInfo" = ({"Capacity"=2084,"Amperage"=0,"Current"=2062,"Vol tage"=12384,"Flags"=838860805})
Yep, your battery kicked the bucket. New 12" batteries have a capacity of about 4k. Mine is rather new and at 3900. My older 12" battery went down to 2k after being plugged into AC power for about 11 months and almost no battery use. I just bought a new one.
If I were you, I'd just get a new battery and enjoy wireless life. I doubt AppleCare or any warranty would cover the battery. Especially, since it's still 'working' - it's just the capacity that sucks.
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Junior Member
Join Date: Apr 2004
Location: nyc
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how do i get battery info like that you pasted above?
unlike the a5" or 17", the 12" its not exactly feasible to take the battery out and only use the ac power. what would be a good if they made some type of blank/spacer so that could be possible.
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Dedicated MacNNer
Join Date: Oct 2003
Location: 22 15N, 114 10E
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And I thought I am the only one with this problem.
Just like Simon said, "My older 12" battery went down to 2k after being plugged into AC power for about 11 months and almost no battery use." I use my battery the same way
This is what happen in the last couple of months: it dropped from 38xx - 32xx - 29xx - 24xx - 20xx.
I always suspect there is something wrong with keeping the battery on the PowerBook this way...
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15"MBP/C2D2.4GHz/4GB RAM/320GB HD
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Posting Junkie
Join Date: Nov 2000
Location: in front of my Mac
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Originally posted by vexingv:
how do i get battery info like that you pasted above?
Just open a shell (terminal window) and type the following:
ioreg -l | grep -i IOBatteryInfo
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