In Reply to @mrxinu
@mrxinu Sweet, I added the clarification because the one in the picture is in fact connected to the switch at present (and it sort of shows in the pic) and I did not want to give the impression that it was my suggested use case.
In Reply to @perrito666
@mrxinu Sorry let me make this a bit more clear. You can have this thing near the place one sits to play so it makes the swap less annoying. I used this a lot during my play through of BOTW where i burned through charges :p