2x 12V 9Ah Sealed Lead Acid Battery For APC BACK-UPS 1500 XS1500 UB1290 | eBay
Mighty Max Battery 12V 9Ah UPS Battery Replacement for APC BE550G Rechargeable Sealed Lead Acid 1290 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Amazon.com: POWERSTAR Battery 12V 9Ah G1000U UPS Battery 3 Year Warranty : Health & Household
CSB HR1234W 12V 9Ah UPS Batteries (3 Pack)
Amazon.com: Replacement for APC Back-UPS 600 BN600 Battery - Replacement UB1290 Universal Sealed Lead Acid Battery (12V, 9Ah, 9000mAh, F1 Terminal, AGM, SLA) - Includes Two F1 to F2 Terminal Adapters :