Eventually, all the research being done on improved batteries will result in much increased energy density, fast recharges, long life and lower cost.
It is already happening incrementally. Batteries are much better today than they were 5, 10, 15, or 20 years ago.
It will become a subscription battery. Pay more to unlock 1000 additional charges.
They will do it because you aren’t spending money on a new battery pack with them.
This is even before they could even think of making something commercial like this, but don’t think they haven’t already decided something like this.