Sunnyway SW1280-F2 12V 9Ah Sealed Lead Acid Replacement Battery: BatteryClerk.com
Mighty Max Battery 12V 18AH F2 SLA Battery for Sunnyway SW12180 Rechargeable Sealed Lead Acid 12180 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Sunnyway SW1223 12V 2.3Ah Battery with F1 Terminals