Csb-sealed High Discharge Battery Hr1234wf2 12v 9ah, 12v, 9ah, Lead-acid, Rechargeable, 151mm X 94mm X 65mm New - Battery Accessories & Charger Accessories - AliExpress
Mighty Max Battery 12V 9AH SLA Replacement Battery for HR-1234W-F2 Rechargeable Sealed Lead Acid 1290 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
CSB HR1234WF2 12V 9Ah Sealed Lead Acid Battery - This is an AJC Brand Replacement