How to Change Batteries in a 53879 Craftsman Garage Door Opener Remote Control

Replace your garage door remote control battery quickly.

The Craftsman 53879 garage door remote control is the same as Liftmaster 81LM control, just with a different label. Changing the battery in your Craftsman 53879 is not difficult but may require that you reprogram the remote to the opener. The remote control will store the code in memory; however, the possibility exists that the code will erase if the battery has been dead for some time. The remote control uses a lithium battery, much like a watch battery, that is available at hardware stores and other places that sell batteries.

Things You'll Need

• Small flathead screwdriver
• Replacement lithium battery
• Step ladder

Instructions

1. Hold the remote control in the palm of your hand with the control buttons facing you.

2. Insert a small flathead screwdriver into one of the notches between the front and back of the remote control. Twist the screwdriver to pop the front off the back of the remote control, then set aside the front of the unit.

3. Take out the round lithium battery on the inside right of the back of the remote control with your fingers. Place a new battery in the slot with the plus (+) side facing toward you.

4. Position the front of the remote control on top of the back and snap them together with your fingers.

5. Position a step ladder under your garage door opener motor and locate the "Learn" button on the back of the motor. The button will be near the limit screws and will also have a small LED light nearby.

6. Press the "Learn" button with your finger until the LED illuminates. Press the control button on the remote until the light on the opener flashes. The remote control is now reset and ready for use.

Tips & Warnings

• Liftmaster recommends using model 3V2032 as a replacement lithium battery.

References

• Gatehouse Supplies: Liftmaster Remote Control Manual
• Gatehouse Supplies: Craftsman 53879 Remote Control