One thing I wonder is, the new MBPs seems to have SIX separate batteries. Are these batteries connected directly to each other in a series/parallel arrangement, and thus have to be balanced with each other? Or does the system treat them as individual batteries, so if just one fails you can replace it without having to swap them all?
It would be amazing if the power controller could tell you which battery is bad, or even completely disable a battery if it fails so the laptop is still usable on the rest with reduced runtime.