Mighty Mule MMB200 Battery Enclosure Kit Installation Instructions

Enclosure Kit Installation Options

There are two available choices for Battery Enclosure Kit installations:

• Separate Battery Enclosure Kit: Required for MM271 and MM272 installations. The Battery Enclosure Kit is installed separately from the Control Box.
• Battery Enclosure Kit Combined with Control Box: Available for MM371W, MM372W, and TS571W installations. This option allows the Battery Enclosure Kit to be mounted behind the Control Box and cover.

Safety Warning: Moving gate can cause injury or death! Keep clear, read all safety instructions, do not allow children to play in the gate area, and use separate entrances for pedestrians.

Package Contents

• (1) Battery Enclosure Kit and Cover
• (4) Battery Enclosure Kit Cover Screws
• (4) Mounting Screws
• (1) 12V 7 Ah Battery (FM150 or RB500) - Note: An additional FM150 or RB500 is recommended for solar installations (purchased separately).
• (1) Strain Relief Fitting
• (2) IDC Self Stripping Connectors - Note: Only the use of the supplied IDC Connector will not void your Mighty Mule product warranty.
• (1) Battery Harness A
• (1) Battery Harness B

Tools Required

• Phillips Head Screwdriver
• Wire Stripper (for use in cutting wires) or Wire Cutters
• (Optional) Pliers (May be used to press and secure the IDC Self Stripping Connectors)
• Drill with 1/2" and 7/32" Drill Bits

Mount the Battery Enclosure Kit

1. Insert the Strain Relief fitting into the access hole on the bottom of the Battery Enclosure Kit, then snap it into place.
2. Identify a suitable mounting location for the Battery Box, within 6' of the control box. For MM371W, MM372W, and TS571W systems, the Battery Box may be placed where the Control Box is currently located. The Control Box will be attached to the Battery Box at the end of the process. If the mounting surface is not wood (e.g., a metal post), use a wood panel between the box and the metal post, which requires additional hardware (not supplied).
3. Mount the Battery Enclosure Kit using the provided mounting screws. Orient the Battery Enclosure Kit with the arrow on the inside of the box pointed up.

MM271 Installation Preparation

To install the Battery Kit to your existing MM271 gate arm system, the wiring harness connected to the MM271 Control Box needs modification using a section of a newly provided wiring harness. Do not attempt to disconnect the wiring harness from the MM271 Control Box.

1. Cut the section of the provided Battery Harness A.
2. Power off the MM271 Control Box.
3. Cut the indicated section from the existing wiring harness connected to the MM271 Control Box. Do not attempt to disconnect the existing MM271 wiring harness from the Control Box.
4. Feed the spliced end of Battery Harness A (connected to the MM271 Control Box) through the Strain Relief fitting from underneath the Battery Enclosure Kit. The wiring harness will then need to be constructed and sealed inside the Battery Enclosure Kit. Do not perform this step before following step 3. The IDC Self Stripping Connectors will not fit through the Strain Relief Fitting and must be connected after the existing battery harness has been fed through.
5. Splice the two harness sections together using the two provided IDC Self Stripping Connectors, ensuring that the new harness rests within the Battery Enclosure Kit. Insert alike wires (Black-to-Black and Red-to-Red) into one connector, then press firmly with your thumb (or use pliers) to press down on the black cap to snap and secure the connection. Once an IDC Self Stripping Connector is snapped and secured, it cannot be removed without damage.

MM271 Battery Installation

This section covers battery installation for the MM271. These instructions can also be used for MM371W, MM372W, and TS571W installations. Refer to page 17 for instructions on the preferred method for these models.

To complete the required harness, connect Battery Harness A to Battery Harness B.

Note: Either end of the newly constructed Battery Harness may be connected to the first battery. The opposite battery connection is available for a second battery.

1. Connect the battery harness to the battery: red to positive, black to negative terminals.
2. Place the first installed battery into the right side of the Battery Enclosure Kit with the terminals facing to the right and towards the top of the Battery Enclosure Kit.
3. With the battery(s) in place and connected to the wiring harness, use the four provided screws to secure the Battery Enclosure Kit cover.

Optional Second Battery

• If installing a second battery, connect the second set of harness connectors to the battery.
• Insert the battery into the left side of the Battery Enclosure Kit with the terminals facing outward.

Note: If no second battery is to be installed, leave the second battery set of connectors not connected.

MM272 Installation Preparation

Feed the Control Box end of Battery Harness A through the Strain Relief fitting as displayed.

MM272 Battery Installation

This section covers battery installation for the MM272. These instructions can also be used for MM371W, MM372W, and TS571W installations. Refer to page 17 for instructions on the preferred method for these models.

To complete the required harness, connect Battery Harness A to Battery Harness B.

Note: Either end of the newly constructed Battery Harness may be connected to the first battery. The opposite battery connection is available for a second battery.

1. Connect the battery harness to the battery: red to positive, black to negative terminals.
2. Place the first installed battery into the right side of the Battery Enclosure Kit with the terminals facing to the right and towards the top of the Battery Enclosure Kit.
3. With the battery(s) in place and connected to the wiring harness, use the four provided screws to secure the Battery Enclosure Kit cover.

Optional Second Battery (Recommended for Solar installations)

• If installing a second battery, connect the second set of harness connectors to the battery.
• Insert the battery into the left side of the Battery Enclosure Kit with the terminals facing outward.

Note: If no second battery is to be installed, leave the second battery set of connectors not connected.

With the 1/2” hole drilled, feed the Battery Harness connectors from the Battery Enclosure Kit through the Control Box's newly drilled access hole.

Use a 7/32" drill bit to drill out the holes required to secure the Control Box to the Battery Enclosure Kit. Use #10-14 x 3/4" Screws to attach the Control Panel to the Battery Enclosure Kit. Note: Control Box mounting screws are not included with MM371W and MM372W.

Final MM271 Battery Enclosure Kit Setup

MM271 Control Box – Battery Enclosure Kit Connection

Connect the harness (Red+ to Red+) and (Black– to Black–).

Align the hinges of the Control Box cover, then close the cover. For MM371W, MM372W, and TS571W, the Control Box and Cover can be attached to the Battery Enclosure Kit. In this situation, the provided Battery Enclosure Kit Cover may be discarded. Secure the cover with the four provided screws. If desired, the battery enclosure can also be installed separately from the control box. To do so, simply follow steps outlined for the MM272.

Final MM272 Battery Enclosure Kit Setup

MM272 Control Box – Battery Enclosure Kit connection

MM371W, MM372W, TS571W Battery Enclosure Kit Setup

Control Box – Battery Enclosure Kit Connection

1. In order to install the Battery Kit, provide wiring access from the Control Box to the Battery Enclosure Kit. With a drill and 1/2” drill bit, drill out the plug designated for Battery Power Access.
2. Connect the battery harness to the battery as shown: red to positive, black to negative terminals.
3. Place the battery into the right side of the Battery Enclosure Kit with the terminals facing to the right and towards the top of the Battery Enclosure Kit.