ML18-12 - 12 Volt 18 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery - Walmart.com
Mule Lead-Acid, Nut/Bolt Terminal, 12 Volt, 18 Amp, Lead Rechargeable Battery 1/4" Hole Diam, 2.56" Wide x 6.57" High x 7.13" Deep PM12180 - 02333854 - Penn Tool Co., Inc