Would it realy be nessesary to have

a "quick" change

battery system?
I can see how this would have been a good thing last year, but looking to the future I'm seeing theres not buch need for such a system. I meen when all Electrics start running together why would you need a quick change

system

As most mains would likely be only 15-20 mins, which we can all ready do.
What do ya'll think?