Duracell Coppertop Specialty a23 Batteries (2-pack) 004133366150 - The Home Depot
Amazon.com: Duracell 21/23-12V Alkaline-Battery, 1 Count Pack, 21/23 12 Volt Alkaline-Battery, Long-Lasting for Key Fobs,-Car Alarms, GPS Trackers, and More : Health & Household
Amazon.com: Synergy Digital Replacement Battery, Compatible with Duracell MN21/23 Replacement, (Alkaline, 12V, 33 mAh) Battery : Health & Household