Amazon.com: 12V 8Ah UPS Backup Battery Replaces CSB GP1270F2, GP 1270 F2-8 Pack : Health & Household
Mighty Max Battery Replaces hr9-12 gp1270 1075 gp1270f2 wp7-12 bp8-12 Rechargeable Sealed Lead Acid 1270 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
2x Pack - Compatible APC GP1270F2 Battery - Replacement UB1280 Universal Sealed Lead Acid Battery (12V, 8Ah, 8000mAh, F1 Terminal, AGM, SLA) - Includes 4 F1 to F2 Terminal Adapters - Walmart.com