Just did some checking. It looks like the Tesla battery pack uses cells a bit larger than AA.
The 85 kWh battery pack contains about 7100 cells.
Wow, 7100 bomblets, er, cells...
But seriously, I wouldn’t have guessed those battery packs were constructed that way. Interesting.
“The 85 kWh battery pack contains about 7100 cells. “
That’s an example of some kind of efficiency, but what kind I’m not sure.