Typically, the speaker charges while sitting in its ring-shaped base, which charges via an electrical contact. It’s an elegant alternative to a flat base on which you can plop it, and it’s considerably better than having to plug in a cable. Sonos says the battery is designed so sitting in the charger all day won’t reduce its overall efficacy down the road, which is the case with some cells. On a very bright note, however, the battery in the Move is replaceable, so after it stops taking a full charge (Sonos says to expect about three years of life), you can get a new battery and swap it out. It likely won't be cheap, but it will be more affordable than getting a whole new speaker.