It’s already being done in of all places “Third World” countries.
https://youtu.be/fjjbeltn4Fo
And here we are virtue signaling with battery packs made from rare metals from war zones and dictatorships
* How much does a single battery pack cost?
An operator would need 2 per ship plus a spare. Plus charging unit you’re probably looking at $100,000 per ship.
Thats assuming the batteries are Tesla cost.