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Amazon.com: Duracell A23 MN21 21/23 23A MN21B 12 Volt Duralock Alkaline Batteries x 5 : Health & Household
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Amazon.com: Synergy Digital Energizer A23 Batteries, Compatible with Duracell MN21/23 Replacement, (Alkaline, 12V, 33 mAh) Ultra High Capacity, Combo-Pack Includes: 2 x A23 Batteries : Health & Household
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