According to some, if you purchased an EV now the battery pack would represent probably 50% of the cost of the car, so assuming you bought your car today and it needed a battery swap in 2 days time you might be swapping out for a 5/6 yr old battery worth possibly a lot less than 50% and not having the same capacity, that is apart from the fact you cant do it of course as that isnt how car manufacturers have decided to design their vehicles. Odd really because the same people claim the battery will last 10 years, a case of having their cake and eating it I think.
Claim battery will outlast the car.
vs
Worry about getting swapped a 5/6 years old battery with degradation and thus shorter range on your brand new car.
There is zero contridiction here. I don't get what is your point, which bit seems odd to you?
The sliding in and out of a battery pack does seem a good idea to me
This idea has been trialled by Tesla initially, and Chinese EV startup Nio are building these stations for their huge SUV.
In fact, if you watch Rich Rebuilds, who does DIY repair on Tesla's. You can see you can undo a dozen bolts and lift the car frame up, the battery stays on the trolly jack. So the early Model S had this capability built in: undo a dozen bolts and lower the battery down into the ground.
Unfortunately, only way for them to work on the same level as today's petrol stations is if majority of manufacturers get on board with this. If we have a standard for batteries so any car can use the station and receive their corresponding battery. Eg. city car, hatchback and large vehicles.
Seeing how long the CCS charging standard took the motor industry (and it's still inferior to Chademo in reliability and features).......... I feel by the time they work out battery swap standards, rapid charging speed may not be far off to filling up with petrol.
But one huge plus point for battery swap is that for all those battery underground awaiting to be swapped in, they can act as grid balancing devices. So you can integrate such station with local substation and the batteries act as giant energy buffer, this will improve renewable utilisation and reduce need to build stationary batteries.
(if for now, we ignore possibility of reusing aged EV battery for such use-case)