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 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