Yuasa NP12-12 12V 12Ah Wheelchair Battery - This Is an AJC Brand Replacement - Walmart.com
Mighty Max Battery 12V 12A F2 Replaces Yuasa NP12-12 NP 12-12.25T Rechargeable Sealed Lead Acid 12120 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com