Mighty Max Battery 12V 7A for APC SMART UPS RBC17 Cartridge #17 Rechargeable Sealed Lead Acid 1270 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
APC RBC17 Compatible Battery (12V 9AH)
APC Replacement Battery Cartridge #17 RBC17 - Wired At Home LLC