Amazon.com : Duracell 12 Volt Alkaline Alarm Remote Battery MN21 / A23 2 Pack : Health & Household
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Amazon.com: KaPonsec 5 Pack Alkaline L1028F 23A 12 Volt Batteries for Celling Fan and Remote : Health & Household
Amazon.com: Amazon Basics 4-Pack 23A Alkaline Battery, 12 Volt, Long-Lasting Power : Health & Household
Amazon.com: 5X GP 23AE 21/23 A23 23A 23GA MN21 12V Battery : Health & Household