23
To reduce the risk of FIRE or
INJURY to persons:
• Disconnect ALL electric
and battery power BEFORE
performing ANY service or
maintenance.
• Use ONLY Chamberlain part
G4228 for replacement battery.
• 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.
When in Battery Backup mode, the myQ
®
App and wireless myQ
®
devices
will be disabled. 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.
1. Unplug the garage door opener.
2. 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.
BATTERY STATUS LED
GREEN LED:
All systems are normal.
• A solid green LED light indicates the battery is fully charged.
• A flashing green LED indicates the battery is being charged.
ORANGE LED:
The garage door opener has lost power and is in battery backup mode.
• A solid orange LED with beep, sounding approximately every 2 seconds,
indicates the garage door opener is operating on battery power.
• A flashing orange LED with beep, sounding every 30 seconds, indicates the
battery is low.
RED LED:
The garage door opener's 12V battery needs to be replaced.
• A solid red LED with beep, sounding every 30 seconds, indicates the 12V
battery will no longer hold a charge and needs to be replaced. Replace the
battery back up to maintain the battery backup feature.
NOTE:
The battery does not have to be fully charged to operate the garage
door opener.
Install the Battery Backup
13
Installation
Red wire (+)
Battery Status LED
Black wire (-)
