Some pretty heavy and expensive machinery is required for the swaps. If there are multiple battery standards, now those facilities need to invest in even more expensive and heavy machinery variants as well as stock even more horrendously expensive batteries. The idea was impractical to start, now there is this monumental added expense.
Standardization of different sizes of modules on the other hand, like with batteries…
Some pretty heavy and expensive machinery is required for the swaps. If there are multiple battery standards, now those facilities need to invest in even more expensive and heavy machinery variants as well as stock even more horrendously expensive batteries. The idea was impractical to start, now there is this monumental added expense.