Originally Posted by icec0o1
I'm not arguing for the OP to build his pack from these. They could potentially be unsafe if you don't know what you're doing (as can any battery) and they are more difficult to make into a pack. I just didn't like that analogy which compared Tesla to companies like GM or Chrysler, forever stuck in the past. If a more dense battery came about, they would throw away the 18650's faster than you could say wh/kg. Elon didn't replace NASA by getting stuck with economies of scale.
You really read it out of context....no one said that. It could have been compared to ANY company and their previous packs. I mean Zero used Molicel batteries, now what do they use? Nano-tech lipo.
What he was saying is that Tesla ORIGINALLY (as in 5,6,7 years ago) designed their packs with 6500 18650 cells in a pack, because it was there and viable and available, they didn't design it around what "could" be.
But now, there are many other options available to not just manufacturers, but also us enthusiasts. So just because Tesla built a pack of 18650's, doesn't mean it's the best thing to do. Other batteries that would be just fine for a vehicle like this, exist, where they didn't before.
It wasn't a NOW analogy, it was a "past" compared to "present" analogy.