This is a brand new Lenovo battery that was sent to me by Lenovo but never used. The seal is still on the bag. I only opened the box to take photos .

New Genuine Lenovo Legion 5-15ACH6A 15.36V 60Wh 4cell Battery SB11B48831 5B11B48816 USA

This is a GENUINE Lenovo part- NOT a knock-off or counterfeit.