MOM-RC - Wireless Momentary Remote Control Switch 12vdc

WARNING:  PLEASE DO NOT RUN THIS REMOTE CONTROL WITH A VOLTAGE GREATER THAN 13VDC.  DO SO WILL PERMANENTLY DAMAGE THE RECEIVER BOARD.

We have discovered that many of the 27A batteries inside the key fobs have been drained to a low-voltage state, causing intermittent control issues. Please replace them with the fresh batteries provided. Thank you.

The wireless controller functions as a reversible momentary control switch from a 11-14v dc power source. By holding down the right side button, the motor runs in one direction until the user releases the button; by holding down the left side button, the motor runs in the opposite direction until the user releases the button. Current rating is 6 amps.  Two transmitters (with batteries) are included in this package.  Wireless signal range is 100 ft.

If you know your application requires a high current draw, secondary (high-load) relays are required to make it work.  Here's a diagram that uses automotive relays to achieve that:

Instructions for Replacing the Battery in the Remote Control

Locate the Screw: Turn the remote control over to the back side. You will see a small screw located near the top, usually close to the keyring attachment.

Remove the Screw: Using a small Phillips head screwdriver (like the one shown in the picture), carefully unscrew and remove the screw. Set the screw aside in a safe place so you don't lose it.

Open the Remote Casing: Gently separate the two halves of the remote control casing. A razor blade (or a thin utility knife blade) works well for this. Be extremely careful when using a razor blade to avoid injury. Carefully insert the very tip of the blade into the seam between the two halves of the casing. Gently pry them apart, working your way around the seam. You may hear a click as the casing begins to separate. Avoid inserting the blade too deeply to prevent damaging internal components.

Confirm Battery Type: The battery should be a 27A 12V alkaline battery. Once the casing is open, you will clearly see the battery. It's essential to replace it with the exact same type to ensure proper operation of your remote.

Remove the Old Battery: Gently pull the old battery straight out from its holder. 

Tip: Pay attention to the orientation of the battery before removing it. Note which side is facing up or down (positive and negative terminals), so you can insert the new battery in the same way. Usually, the positive (+) side is marked on the battery and the holder.

Install the New Battery: Take your new 27A 12V battery and insert it into the battery holder in the same orientation as the old one. Make sure it is firmly seated and makes good contact in the holder.

Close the Remote Casing: Carefully align the two halves of the remote control casing and press them back together until they snap or click into place. Ensure the seam is closed completely all the way around.

Reinstall the Screw: Place the screw back into its hole and tighten it gently with the screwdriver. Turn the screw until it is snug, but do not over tighten, as this could damage the plastic casing.

Test the Remote: Try using your remote control to see if it is now working correctly with the new battery. Press the buttons and check if the intended device responds.