K14139 - Honeywell Home Alarm Battery (for VISTA-Series LTE-IA, LTE-IV, LTE-XA and LTE-XV Cellular Communicators)
Mighty Max Battery ML8-12- 12 VOLT 8 AH SLA BATTERY- PACK OF 4 Rechargeable Sealed Lead Acid 1280 Alarm System Batteries (4-Pack) in the Device Replacement Batteries department at Lowes.com