Battery is charged but will not power Powerbook

According to iStat and the Powerbook, my battery is charged. Also, all lights will light up if I take the battery out and press the button.
When I try to turn the Powerbook on with battery power it will not work. Also, when I take the plug out while the system is on, the Powerbook turns off.
Does anyone know what the problem could be? I was going to call support, but by the time I settled down this evening they were closed. I don't even know if they are open on Saturdays so I might be stuck until Monday.

Looks like your battery is in better shape than mine, should be good to go.
Open System Preferences > Energy Saver
From the Settings For drop-down, choose Battery and set for Better Performance.
If that makes no difference, try resetting your PMU:
http://docs.info.apple.com/article.html?artnum=14449
Joe

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Battery is charged but will not power Powerbook

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