12V 150Ah Battery, Sealed Lead Acid battery (AGM), B.B. Battery BPL150-12, 483x171x240 mm (LxWxH), Terminal I3 (Insert M8)
Mighty Max Battery ML18-12- 12Volt 18 AH, Nut and Bolt (NB) Terminal Rechargeable Sealed Lead Acid 12180 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com