Any Mac Geniuses in the house?

[kári]

Mine is from september last year. I just don't know because I haven't tried yet.

[slycordinator]

I think mine is a newer model or something.  Those Apple bastards.

The non-user-replaceable battery thing started with the unibody versions.

At the MacWorld Expo keynote on January 6, 2009, Phil Schiller announced a 17-inch MacBook Pro with unibody construction. This version diverged from its 15-inch sibling with an anti-glare "matte" screen option and a non user-removable lithium polymer battery.[36] Apple affirmed the battery's design was unlike any existing notebook battery. Instead of traditional round cells inside the casing, the lithium-ion polymer batteries are shaped and fitted into each laptop without wasting space. Adaptive charging extends battery life, which uses a chip to optimize the charge flow to reduce wear and tear.[36] Compared to the previous iteration, battery life for the 17" version is quoted at eight hours, with 80 percent of this charge remaining after 1,000 charges cycles. This battery is not intended to be user-removable; doing so voids the warranty.[36]