Must admit, we missed this one when it first hit YouTube back in December.

"15x normal speed. All together in two sessions this took about 3-4 hours."

"Batteries to be used in upcoming off grid solar project."

But because it's always interesting to see inside the big ol' object that powers the plug-in cars some of us drive, here's a time-lapse video teardown of a Model S 85- kWh battery pack.

See anything unexpected?