[Tangsen]

If only the car maker makes it easy to slot in and out their car battery.. even if don't standardize all different but all swappable can liao. I just start a cat battery swapping station biz can liao. Everywhere just swap and then charge the battery for members. Members just buy membership and enjoy the quick change of battery...

There is a lot of possibility for these hot swap … like it computer server … I remember years ago my network engineer do hot swap  … easy peasy if everything is properly configure