As we knew before, Tesla will be offering the Model S with several battery options starting with a 150-mile range pack at the $57,500 base price. The top option will be a pack using cells with a more advanced chemistry that offers a 300-mile range. Tesla is also developing fast swap battery packs. The removal and installation of the Roadster pack is about an 8 hour operation. This may or may not be part of the standard Model S feature set. Tesla has also developed a fast charger that can top up the battery in 45 minutes. One option being considered is to offer pack rentals for Model S owners planning a longer road trip. They would be able to temporarily get a 300-mile pack installed that would facilitate longer trips. One other tidbit is that Tesla Roadster customers will have priority to snag a postion in line once Tesla begins to accept orders on the Model S. We'll have more soon.
[Source: Elon Musk]