Replacing an entire pack has always and will likely always be a non-starter - they are too big and heavy to remove and replace.
Instead the packs should be made out of modules and the module should be a standard size. How each pack uses the modules can be different, but the modules themselves should be the same or come in a small range of sizes that weigh at most around 20lbs.
If the Smart car had at least one module that could be removed and replaced with a new one by the driver, you could keep a fully charged extra at home or in the car and seriously reduce the range anxiety for most people.
Instead the packs should be made out of modules and the module should be a standard size. How each pack uses the modules can be different, but the modules themselves should be the same or come in a small range of sizes that weigh at most around 20lbs.
If the Smart car had at least one module that could be removed and replaced with a new one by the driver, you could keep a fully charged extra at home or in the car and seriously reduce the range anxiety for most people.
