See, Apple? Even cars can do it :)
2 points
This is not comparable.
The fuel is spent and sold. Gas stations usually only have a few days supply of inventory.
This is like holding engines in inventory to swap without notice on the spot. But in this case the engines cost $10k+.
The fee to swap is about $12…so you have to swap each battery about 800 times to break even. See how you’re wrong yet?