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32
Battery Backup
STEP 1 Install the Battery
To reduce the risk of FIRE or INJURY to persons:
l Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
l Use ONLY Chamberlain part # 41A6357-1 for replacement battery.
l DO NOT dispose of battery in fire. Battery may explode. Check with local codes for disposal instructions.
ALWAYS wear protective gloves and eye protection when changing the battery or working around the battery
compartment.
The battery backup allows access in and out of your garage, even when the power is out. The battery does not have to
be fully charged to operate the garage door opener. When the garage door opener is operating on battery power, it will
run slower and the battery status LED will glow solid orange, a beep will sound approximately every 2 seconds. The
following features are unavailable when operating on battery power:
l Garage Door Opener Lights
l Unattended close devices and features (e.g. MyQ
®
Smartphone Control and Timer-to-Close)
Battery Status LED
1. Unplug the garage door opener.
2. Open the light lens on the right side panel of the garage door opener. Use a Phillips head screwdriver to
remove the battery cover on the garage door opener.
3. Partially insert the battery into the battery compartment with the terminals facing out.
4. Connect red (+) and black (-) wires from the garage door opener to the corresponding terminals on the
battery.
5. Replace the battery cover.
6. Plug in the garage door opener.
7. Wait for the green Battery Status LED to start flashing before proceeding to test the battery.
STEP 2 Test the Battery
1. Unplug the garage door opener. The battery status LED will either glow solid orange indicating opener is
operating on battery power or will flash indicating low battery power. NOTE:Make sure the garage door
opener is unplugged.
2. Open and close the door using the remote control or door control. The garage door opener may run slower
if the battery is not fully charged. The battery will take 24 hours to fully charge.
3. Plug in the garage door opener. Verify the battery status LED is flashing green, indicating the battery is
charging.
1 2
3
Charge the Battery
The battery charges when the garage door opener is plugged into a 120Vac electrical outlet that has power and
requires 24 hours to fully charge. A fully charged battery supplies 12Vdc to the garage door opener for one to two days
of normal operation during an electrical power outage. After the electrical power has been restored, the battery will
recharge within 24 hours. The battery will last approximately 1 to 2 years with normal usage. Instructions for
replacement are provided with the battery. To obtain maximum battery life and prevent damage, disconnect the battery
when the garage door opener is unplugged for an extended period of time, such as a summer or winter home.
NOTE: When the garage door opener is in battery backup mode the garage door opener lights, Timer-to-Close, and
Remote Close features are unavailable.
In battery backup mode, the Automatic Garage Door Lock will unlock when the garage door is opened, and will remain
disabled until power is restored.
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