SPS Brand 12V 75Ah Replacement Battery (SG12750RT) for Vision 6FM60-X, 6 FM 60-X UPS (Terminal RT) (1 Pack)
KSTAR 6-FM-17 replacement battery (rechargeable)
Amazon.com: AJC Battery Compatible with Enduring 6-FM-7 6-FM-7.5 12V 7Ah Sealed Lead Acid Battery : Health & Household
Enduring 6-FM-7 6-FM-7.5 12V 7Ah Sealed Lead Acid Replacement Battery: BatteryClerk.com Sealed Lead Acid
Mighty Max Battery Sunbright 6-FM-7 SLA Battery 12 Volt / 7 Ah Rechargeable Sealed Lead Acid 1270 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com