The Mighty Mule Gate Opener Battery Enclosure Kit (part # MMB200) is a battery solution for select Mighty Mule Gate Openers. This Gate Opener Battery Enclosure Kit is compatible with the following Mighty Mule Gate Opener part numbers (MM271, MM272, MM371W, MM372W & TS571W). The MMB200 or a 12-Volt automotive/ marine type battery that produces a minimum of 250 cold cranking amps (CCA) is required for powering these select Mighty Mule Gate Openers. This outdoor rated battery enclosure kit includes (1) 12 Volt 7 Amp Hour Sealed Lead Acid rechargeable maintenance free battery part # FM150, (2) battery harnesses & the required mounting hardware. The MMB200 is designed to be mounted adjacent to the part # MM271 & MM272 gate openers control box. It's designed to be mounted behind the part # MM371W, MM372W & TS571W gate openers control box. It can be mounted to any type of fence including chain link, panel, vinyl, ornamental and wood.