Myolift Mini & 600 Portable Battery

Was worried a replacement battery wouldn't hold a charge like the original, but this 3.7V lion fits my device perfectly and lasts through a full week of sessions. Nice to have a spare so I'm never mid-treatment when one dies.

Ordered this as a backup so I'm not stuck when my device dies mid-routine, and it slid right into the compartment like the original. It's a 3.7V lion cell, so I just rotate it in every few weeks to keep both topped up. Glad I don't have to worry about downtime anymore.

Battery fits my device fine and holds a charge through a full week of sessions. Just wish the packaging had included a note about the charging time, since it took me a bit to figure out.