Energizer A23 Battery, 12 Volt - 2 Pack Great for Electronics Like A23 12 Volt Photo / Garage Door Opener / Electronic Keychain Eveready Energizer Battery 2 Pack - Walmart.com
Garage Door Opener A23 Battery 12V Special High Capacity 55mAh Same as 23A 23AE L1028 MN21 3 Years Warranty 6 Count - AliExpress Consumer Electronics