ML22-12GEL - 12 Volt 22 AH, GEL Type, Internal Thread (INT) Terminal, Rechargeable SLA AGM Battery - MightyMaxBattery
Mighty Max Battery ML22-12- 12 VOLT 22 AH SLA BATTERY- PACK OF 4 Rechargeable Sealed Lead Acid 12220 Backup Power Batteries (4-Pack) in the Device Replacement Batteries department at Lowes.com