I just got a replacement battery for my Powerbook G4, and screwed the whole first charge up. First, I left the computer plugged in as I hot-swapped the old with the new. The new one didn't seat properly (but it had already begun charging) so I pulled it out and reseated it. So I disrupted the first charge. Then, my girlfriend started using it and transferred it (on battery) to another area in the house and plugged it back in, thus screwing up the first drain. Of course she said, "I didn't know." And I reminded her that we talked about this. Then she changed her response to, "Well, I didn't remember." OK. So is there a way of resetting the battery, because it looks like it's only going to provide 4 hours of battery life instead of 5?