Amazon.com: Synergy Digital Replacement Battery, Compatible with Radio Shack 23-144 Replacement Combo-Pack Includes: 2 x ALK-12V Batteries : Electronics
Sound Professionals ENER-A23BP-2 - single miniature 12v battery - brand may vary by availability ENER-A23BP-2
DURACELL, Alkaline, 60 mAh Capacity, Battery - 489D85|MN21 - Grainger
Energizer A23 12V Alkaline Battery (Each)
A23 battery - Wikipedia
A23 12 Volt Alkaline Battery | 23A 12V Battery
ENERGIZER, Alkaline, 50 mAh Capacity, Battery - 45EK03|A23BPZ-2 - Grainger
Amazon.com: MJKAA Pack of 5 A23 Battery 12V Alkaline 60 mAh [Ultra Power] - 12 Volt for Garage Doors Opener, Ceiling Fans Doorbells Remotes MN21 23GA GP23AE A23S LR23A L1028 : Health & Household