Super Alkaline Battery 23a 12v Ultra Long-Lasting, Leak-Proof Maximum Power-5Pcs | eBay
A23 battery - Wikipedia
23A (A23) 12 Volt Alkaline Battery
Energizer Specialty A23 Alkaline 23a Security Batteries (2-Pack) in the Device Replacement Batteries department at Lowes.com
Amazon.com: Voniko Alkaline Battery 23A - Ultra 23A Batteries (6-Pack) - Long Lasting 12 Volt A23 Battery for Doorbells and Power Remote : Health & Household