Mich. Comp. Laws § 324.17105a: Batteries containing intentionally introduced mercury; sales or offers prohibited.

Sec. 17105a.

Except for alkaline manganese button cell batteries that have a mercury content of 25 milligrams or less, a person shall not sell, offer for sale, or offer for promotional purposes an alkaline manganese battery manufactured on or after January 1, 1996 that contains intentionally introduced mercury.

A person shall not sell, offer for sale, or offer for promotional purposes a zinc carbon battery manufactured on or after January 1, 1996 that contains intentionally introduced mercury.