THEORY on capacity (Ah), calibration, etc - Post from an Apple discussion forum about the best way to calibrate your battery for use, found in my daily obsessive scour for Powerbook info while I’m waiting for mine to ship. (Still 11/19 according to the store…) I have zero idea if this battery charging info is worthwhile, but if that doesn’t work there’s a link to a site which seems fairly knowledgable (to the point of inspiring glazed eyes) about the subject.