Replacement battery for FM500/FM502.
This is a standard 12volt, 7.0amp-hour, maintenance free battery for Mighty Mule Gate opener systems.
This is the only battery approved for use with the Mighty Mule® systems.
The life expectancy is 3-5 years although this can be shortened when subjected to extreme cold.
We recommend a battery warmer be fitted where possible in cold climates.
The FM500 and FM502's larger control box is prewired to accept an optional second battery.