R.I. Gen. Laws § 23-60-3: Deposit on vehicle batteries.

(a) A dealer shall not refuse to accept from any consumer any used vehicle battery, in reasonably clean and substantially unbroken condition as an exchange with the purchase of a new vehicle battery.

(b) A dealer may add a core charge to the sale of a battery. The core charge shall be waived when a used vehicle battery is delivered to the dealer at the time of purchase. The deposit shall be returned to the consumer when a used vehicle battery is delivered to the dealer by the consumer within seven (7) days of date of purchase of the new battery.