Mighty Max Battery 12V 22AH Battery Replacement for SeaLake FM12170 Rechargeable Sealed Lead Acid 12220 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Amazon.com: 2 Pack Replacement for SEALAKE FM12170 Battery - Replacement UB12180 Universal Sealed Lead Acid Battery (12V, 18Ah, 18000mAh, T4 Terminal, AGM, SLA) : Health & Household