PANAMA CITY — A 26-year-old man with a history of mental illness pleaded no contest to felony battery charges after he was arrested in January for having sex with a 16-year-old girl.

Dewey Davis, of Panama City, was sentenced to five years in prison after Judge Dedee Costello accepted his plea during a hearing Wednesday. He was originally charged with unlawful sexual activity with a minor.

In April, Davis was committed to the state hospital in Chattahoochee, where he was successfully treated until his release in August. He reported being on medications during a hearing Wednesday.

A state psychologist recommended Davis’ involuntary commitment after Davis displayed “disorganized and delusional thought processes” during an interview. Davis displayed symptoms of schizophrenia or schizoaffective disorder.

Davis was on probation after a 2008 incident in which he stabbed a Panama City man in the head while stealing his vehicle, according to an arrest affidavit. He has several prior convictions for trespassing, one for resisting an officer, and one for domestic violence.