Amazon.com: AJC Genesis NP12-6 6V 12Ah Sealed Lead Acid Battery - This is an Brand Replacement : Health & Household
6V 12AH F2 Replacement Battery for Enersys NP12-6-F2 - MightyMaxBattery
NP12-6 - NP - VRLA - General Use - Industrial - Batteries
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