Every electric vehicle design that I've seen has a unique battery design. It's possible to design the battery pack for quick change. However, unless the battery packs are standardized between designs, you'd need to find a quick change station that carries your type pack.

Electric cars using conventional batteries are an interim solution, IMO. They have some usefulness for short distances in the local area but are impractical for other missions. Hybrid electric vehicles are more practical in that they have much better range. However, the best long term solution will probably be fuel cells.

I believe the best approach in a reasonable timeframe will be to use a catalyst that can extract hydrogen from an alcohol or hydrocarbon fuel (even gasoline). That would save having to build a hydrogen infrastructure which would cost a fortune.

One good side effect from electric vehicle research is that many of the components would be useful for fuel cell powered vehicles as well. By that, I mean things like the electric motors, regulators, etc. used in electric cars would also work in fuel cell cars. Instead of a heavy battery pack, you'd have fuel cells and tanks. I'm pretty sure that would be a lighter and more efficient solution.