4 ms·

I find the range improvement more significant. Anyone have info as to if the power density was increased, or they just crammed in more cells into the battery?

• ChuckMcM 10y ago
  Better/more batteries, this is a 100kWh car, vs the P90 which is a 90kWh car. Early battery packs had the cells spaced further apart (presumably to prevent chain reaction fires) as they have gone along they have made denser battery packs. I don't know if that is because they have better inter-cell insulation, a better handle on battery discharge, or additional safety data which helps them better estimate their margins for error.
• mikeash 10y ago
  The $20,000 cost does include the "rebate" for recycling the old one. I don't know that it implies much about the actual battery costs, though. I think the main implication is that Tesla isn't terribly eager to sell battery upgrades, and they'd rather use those batteries to sell new cars, but they'll do it if you make it worth their while. With limited production capacity for the new batteries for the next few months, they don't want a bunch of upgrades getting in the way of sales to new buyers.