Rechargeable Battery - 12-inch PowerBook G4
Buy an extra battery to double your battery life when traveling.
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Overview
Most Useful Reviews
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Rechargeable Battery - 12-inch PowerBook G4
Great battery (and don't forget to calibrate)
Written by KB from Schertz
10/10/2005
On "Better Battery Life" I routinely get close to five hours of battery life (while using it)!
New Apple batteries, those included with a machine and those bought separately, arrive partially charged and need to be calibrated. This procedure provides a baseline for the processor built into the battery, so the processor can effectively regulate power consumption. To calibrate your battery, first plug in the laptop and charge the battery to 100 percent capacity; the light at the end of the Apple-supplied power cable will go from orange to green when the battery is fully charged. Next, unplug the power adapter and let the battery run down. The machine will put itself to sleep and refuse to wake up. Plug the adapter in again and fully recharge the battery. (You can use the laptop as you normally would during the calibration process.) You need to calibrate the battery only once. Source: Laptop Battery Smarts, Mobile Mac …More902 of 1184 people found this useful
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Rechargeable Battery - 12-inch PowerBook G4
Another dirty little secret
Written by BM from Woodstock
19/08/2005
This battery has a very short life and at $129 is a heist. It never lasted even 3 hours and now that I've installed Tiger I'm lucky to get 30 minutes. The discussion boards show that this is a widespread problem. Apple has some explaining to do. …More
787 of 1069 people found this useful
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Rechargeable Battery - 12-inch PowerBook G4
Not true
Written by JG from San Francisco
10/08/2005
I was lucky to get 3.5 hours out of this battery when it was brand new. A year or so later and I get a half an hour tops.
699 of 958 people found this useful
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Most Recent Reviews
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Rechargeable Battery - 12-inch PowerBook G4
3rd battery since 2005!
Written by LW from Red Bank
9/12/2009
At this point, I probably should have just bought a new laptop, but it's never been financially possible. I've had this battery for a little under two years, I think, and it's virtually dead (the PowerBook needs to be plugged in at all times). I wish Apple would either make the batteries better or more affordable. …More
3 of 3 people found this useful
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Rechargeable Battery - 12-inch PowerBook G4
NOT GOOD
Written by GC from PHOENIX
14/10/2009
Getting ready purchase a second replacement battery since original purchase in 2006. So I'm, in effect, averaging a new battery every 1.2 years. Not good!! …More
24 of 25 people found this useful
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Rechargeable Battery - 12-inch PowerBook G4
should be better
Written by WN from suisun city
16/07/2009
I am on my 2ond battery. I am a non-savvy computer owner and i tried to refill the battery completely then drain it completely but i am at 14% energy and it's not getting any higher. I guess i am not very good and the battery as well!! Here's to constant plug ins and tape to keep the plug in!! it's nice to hear i am not the only one! …More
29 of 34 people found this useful
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