Minn. Stat. § 325E.1151
Subd. 1. Purchasers must return battery or pay surcharge.
(a) A person who purchases a lead acid battery at retail, except a lead acid battery that is designed to provide power for a boat motor that is purchased at the same time as the battery, must:
Subd. 2. Retailers must accept batteries.
Subd. 3. Retailers must post notices.
(b) The notice must be at least 8-1/2 inches by 11 inches and contain the universal recycling symbol and state:
"NOTICE: USED BATTERIES
This retailer is required to accept your used lead acid batteries, EVEN IF YOU DO NOT PURCHASE A BATTERY. When you purchase a new battery, you will be charged an additional amount of at least $10 unless you return a used battery within 30 days.
It is a crime to put a motor vehicle battery in the garbage."
Subd. 4. Notices required in newspaper advertisements.
(b) The notice must state:
"At least $10 additional charge unless a used lead acid battery is returned. Improper disposal of a lead acid battery is a crime."