Battery, 97WHR, 9 Cell,

The Dell 9KN44 is a primary battery that powers a compatible Dell notebook away from an AC outlet. Dell identifies it as type M5Y0X; the parts listing also uses reference 09KN44.

This 9-cell configuration has a nominal voltage of 11.1 V, a charge capacity of 8550 mAh and stored energy of 97 Wh. These specifications distinguish it from versions with different electrical characteristics.

It provides portable power while working without a connected adapter or carrying the notebook between locations. It can also replace the primary battery in a system that supports this exact Dell part. The confirmed identification is Dell 9KN44, type M5Y0X, reference 09KN44, with the stated cell configuration and electrical ratings.