AWD/RWD Battery Pack Differences?

[bobjustbob]

I was chatting with a friend who's thinking about buying a Model S when he asked me if there was a difference in battery packs between a new RWD/AWD vehicle. I assume there isn't but I can't find any information that confirms/denies this assertion. Does anyone here know the answer?

 

[apacheguy]

I think an AWD pack is backwards compatible with RWD but not the other way around. At some point Tesla revised the enclosure and called them all Flex Packs.

 

[brianman]

I think an AWD pack is backwards compatible with RWD but not the other way around. At some point Tesla revised the enclosure and called them all Flex Packs.

This matches my understanding.

 

[bobjustbob]

Thanks to everyone for the answer!