Mighty Max Battery ML7-12- 12 Volt 7.2 AH, F1 Terminal Rechargeable Sealed Lead Acid 1270 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Amazon.com: GP 27A Alkaline Battery 12V (Pack of 2) : Health & Household
Trojan T27-AGM 12V 89Ah Group 27 Dual Purpose Deep Cycle Battery
Amazon.com: 5 X Gp 27A Mn27 12V Alkaline Battery : Health & Household
Amazon.com: Duracell 27 12V Alkaline Battery, 1 Count Pack, 27 12 Volt Alkaline Battery, Long-Lasting for Key Fobs, Car Alarms, GPS Trackers, and More : Health & Household