MIGHTY MAX BATTERY ML18-12 - 12V 18AH UPS Battery Replaces 17Ah MK Battery ES17-12, ES 17-12 - 2 Pack MAX3436478 - The Home Depot
12V 18 AH Sealed Lead Acid Batteries
MK Es17-12 Agm 18 Ah (20Hr) altE
AndyMark, Inc. - The MK ES17-12, 12 Volt, 18 amp-hour sealed lead acid battery with nut and bolt connector has proven to be a trustworthy power source for FIRST Robotics Competition robots.