B&B BP12-6 6V 12Ah UPS Battery - This Is an AJC Brand Replacement - Walmart.com
BB BP12-6 6V 12Ah Sealed Lead Acid Replacement Battery: BatteryClerk.com Sealed Lead Acid
Mighty Max Battery 6V 12AH F2 SLA Replacement Battery for BB BP12-6 Rechargeable Sealed Lead Acid 6120 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Mighty Max Battery 6V 12AH F2 SLA Replacement Battery for BB BP12-6 Rechargeable Sealed Lead Acid 6120 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com