[LeifCarrotson]

How does it pass safety regulations without an integral part of the vehicle? How do they publish performance data if it can't move on itself?

Not that those are insurmountable obstacles, but a law that says "You can't claim your vehicle does 200 miles on a charge if it doesn't include a battery" or "You can't claim your vehicle is safe in a frontal crash because the battery absorbs some of the energy except you're not including the battery" don't seem unreasonable.

[gruez]

Can't you just design/test it with OEM batteries, but allow the end user to buy it without the OEM batteries?

[umeshunni]

That's pretty much what this law allows now