Amazon.com: UPG 12V 4Ah SLA Replacement Battery for Digital Security Controls DSC BD4-12
Mighty Max Battery ML8-12- 12 Volt 8 AH, F1 Terminal Rechargeable Sealed Lead Acid 1280 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
ML5-12 - 12 Volt 5 AH, F1 Terminal, Rechargeable SLA AGM Battery - MightyMaxBattery
12v 4Ah Sealed Lead Acid Battery with F1 Terminals YU-0125 Lead Acid (NP/LCR/PS)
Leoch DJW6-4.0 6V 5Ah Sealed Lead Acid Replacement Battery: BatteryClerk.com Sealed Lead Acid
Landport
NP4-12 - Enersys - Rechargeable Battery, 12 V, Lead Acid
Mighty Max Battery 12V 5Ah 4ah Alarm System Back Up Vista 20P ADT Rechargeable Sealed Lead Acid 1250 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com