He joined the Army of the Eastern Pyrenees as a general of brigade and led his troops at Boulou, the Black Mountain and Rosas.

He served with the Army of the Alps from 1795 to 1798 when he was elected a member of the Council of Five Hundred.

When Pierre Dupont de l'Etang's corps was surrounded after the Battle of Bailén, Chabert was one of the French generals who negotiated the capitulation.

During the Hundred Days Napoleon promoted him general of division and appointed him to lead the 5th National Guard Division in Marshal Louis Gabriel Suchet's corps in the Alps.

His surname is one of the names inscribed under the Arc de Triomphe, on Column 26.