Mighty Mule FM350 - Manual (Page 12)

8 rev 07.16.12
1. Determine Charging Options for Battery: Transformer OR Solar
NEVER USE TRANSFORMER AND SOLAR PANEL(S) AT THE SAME TIME!
It will damage the control board!
IMPORTANT:
• The 12 volt automotive/marine battery must be charged by either connecting the transformer
(included) or solar panel kit to the control board.
• The transformer is designed for indoor use. If the transformer can be plugged only into an
outside electrical outlet, a weatherproof cover/housing (available at local electrical supply
stores) must be used.
• If your gate is more than 1000 ft. from an AC power source, you will need to use at least 5
watts solar charging power to charge the battery. Refer to the Solar Panel and Gate Activity
chart below.
• All low voltage wire used with the Mighty Mule Gate Opener must be 16 gauge, dual
conductor, stranded, direct burial wire. Do not run more than 1000 ft. of wire.
Solar Panel and Gate Activity Chart
The table and map illustrate the maximum number of gate cycles to expect per day in a particular area
when using from 5 to 30 watts of solar charging power. The figures shown are for winter (minimum sunlight)
and do not account for the use of
any accessory items.
Accessories connected to your
system will draw additional power from
the battery and will require additional solar
panels.
NOTE: UP to 250 ft. of 16 gauge dual
conductor, stranded, direct burial wire may
be used to allow installation of solar panels in
direct sunlight.
Solar Charging Options
• 10 Watt Mighty Mule Solar Panel [FM123]
• 5 Watt Mighty Mule Solar Panel [FM121]
(See accessories on pg. 38)
Before You Begin
Single Gate Winter Ratings Zone 1 Zone 2 Zone 3
12 v single gate (5 watts) solar charger 4 8 13
12 v single gate (10 watts) solar charger 8 16 26
12 v single gate (15 watts) solar charger 11 20 30
12 v single gate (20 watts) solar charger 14 28 38
12 v single gate (25 watts) solar charger 17 36 46
12 v single gate (30 watts) solar charger 20 44 54