MIGHTY MAX BATTERY 12V 50AH Replacement Battery for GS Portalac PE12V40 TEV12500 MAX3842524 - The Home Depot
Mighty Max Battery 12V 7.2AH SLA Battery for GS Portalac PX12072HG Rechargeable Sealed Lead Acid 1270 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com