That's a 1400 mAh battery with no charger, just a cable that you have to plug in if it dies while in the middle of playing a game. Versus the one I linked which is two 2600 mAh batteries for $18 (or $25 for the three battery version) with an actual charger--that charges a battery that's almost twice the capacity in half the time--so you can just hotswap the battery in like 5 seconds and not have to worry about an annoying cable.
I've got 5 of them between my X1X, XSX, and PC, some a couple years older than the others but they all hold a charge equally well. I've read they also work perfectly in 8bitdo SN30+ Pro / Pro 2, but I haven't needed to test that with my Switch yet.