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Battery Life Reduction after update!
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Forum Regular
Join Date: Sep 2003
Location: Tucson, AZ
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before the update I had a capacity of 4479 and I could get 4 hours of battery life with reduced setting and the lcd down to about 4 bars. Now after the battery update I have a capacity of 4400 and get around 3 hours and 20 minutes. Very disappointing, I am going to do a full calibration later today, but if that does not address the matter thanks apple for taking time AWAY from my battery. Am I the only one that experienced this. Who else out there that had a good battery before is experiencing this. I can't be the only one here.
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15.2" Al/1.25ghz/1gig/Superdrive/80(5400)
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Dedicated MacNNer
Join Date: Jul 2001
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Same here:
before - 4349
after - 4200.
Predicted time on a battery seems also reduced by 20-30 min.
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PB G4 12" 1.5GHz/1.2GB/100GB/SuperDrive/AE/Mac OS X Tiger
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Forum Regular
Join Date: Oct 2003
Location: Iraq
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Offline
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well i just checked after i saw this post, this is what i got Before i did the update
"Capacity"=4144,"Amperage"=1200
And this is what i have now
"Capacity"=4400,"Amperage"=1200
So it actually Went up..
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Fresh-Faced Recruit
Join Date: Nov 2003
Location: Porto, Portugal
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Offline
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before 4022
after 4200
Seems that this is a default value. But I've just installed the update. Perhaps it needs a recalibration.
PS. Anyway, before installing the update I was achieving (tought never measured it rigourously) around 5h with reduced settings and one bar display brightness. This of course with minimal disk access reading pdf docs, using openoffice)
PS2. How to uninstall the battery update if I get worse results?
Thanks.
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[12" PowerBook G4 1Ghz 768MB/40GB/Combo/APX]
if you can look, see
if you can see, observe (jos� saramago)
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Clinically Insane
Join Date: Nov 1999
Location: 888500128, C3, 2nd soft.
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Before: 3500 (on a nine-month old 12" Powerbook)
After: 3160.
That translates to just over two hours.
Not acceptable.
It's going in for service in January, anyway, so...
And I still haven't been able to find what the Rev.A 12" Powerbook battery is rated at when new.
Anyone? Bueller?
-s*
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Mac Elite
Join Date: Oct 2000
Location: Macfreak7
Status:
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Forum Regular
Join Date: Sep 2003
Location: Tucson, AZ
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ioreg -l | grep -i IOBatteryInfo
enter that into your terminal
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15.2" Al/1.25ghz/1gig/Superdrive/80(5400)
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Senior User
Join Date: Aug 2003
Location: Colorado Springs
Status:
Offline
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or you can always download xbattery and get a whole buch of battery stats
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Fresh-Faced Recruit
Join Date: Dec 2003
Location: Davao City, Philippines
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pardon my ignorance, but how do you calibrate your powerbook's battery?
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Fresh-Faced Recruit
Join Date: Sep 2003
Status:
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Originally posted by Aluminum:
ioreg -l | grep -i IOBatteryInfo
enter that into your terminal
The -i flag to grep tells it to ignore case, so:
Code:
ioreg -l | grep -i iobatt
is sufficient.
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PowerMac G5 Dual 2.7GHz / 2GB / X800XT
PowerMac G3 400MHz / 896MB
PowerBook G4 1GHz / 1GB
iBook SE G3 466MHz / 576MB
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Dedicated MacNNer
Join Date: Oct 2003
Location: 22 15N, 114 10E
Status:
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15"MBP/C2D2.4GHz/4GB RAM/320GB HD
15"MBP/C2D2.16GHz/3GB RAM/250GB HD
12"PB/1GHz/768MB/60GB/SuperDrive/AE
iPhone 8GB/iPod video 30GB
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Forum Regular
Join Date: May 2003
Location: Ft Lauderdale, FL
Status:
Offline
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Originally posted by ncarandang:
pardon my ignorance, but how do you calibrate your powerbook's battery?
It's fairly simple. Just run the powerbook until it is force into sleep, then charge it back up. I used a DVD movie to run down the charge and I made sure the machine wouldn't go to sleep (set it for 3 hours before it slept).
Terrance
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Junior Member
Join Date: Dec 2003
Location: Texas
Status:
Offline
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I don't know the stats before hand, but now.
batt #1 - 4200
batt #2 - 4149
is there a way to recallibrate a battery?
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I <3 Macs!
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Fresh-Faced Recruit
Join Date: Dec 2002
Status:
Offline
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My 12" 867 PB just had a new battery and with the battery update, it is showing 3:50 hr. This is with LCD set at 5 bars and Wifi on. Programs open are Safari, Excel, temp monitor, mail.
BT is switched off.
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