Can I charge my ZeRound with a wall plug? May 21, 2016 08:01 Updated Yes, you can charge your ZeRound with a wall plug using its USB cable with an adapter. Related articles My ZeRound is not charging, what should I do? How to charge my ZeRound? Can I wear ZeRound while swimming or showering? How to clean the band of my ZeRound? My ZeRound3 doesn't synchronise correctly, what can I do?