It is brand new battery. It wasn't charged even one time.
Item description:
Capacity: 1220mAh
Output Voltage: 7.6V
Compatible with:
Chargers BCN-1
Olympus OM-D E-M1
Olympus OM-D E-M5
Olympus OM-D E-M5 Mark II
Olympus PEN E-P5
Olympus PEN F
Olympus PEN HLD-6