Install The Battery Backup (Not Provided) - Chamberlain LJ8950W Manual

Installation
8

Install the Battery Backup (Not Provided)

When in Battery Backup mode, myQ Smartphone Control and wireless myQ devices
will be disabled.
1. Unplug the door operator.
2. Use a Phillips head screwdriver to remove the battery cover on the door operator.
3. Partially insert the battery into the battery compartment with the terminals facing
out.
4. Connect red (+) and black (-) wires from the door operator to the corresponding
terminals on the battery.
5. Replace the battery cover.
6. Plug in the door operator.
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 door operator has lost power and is in battery backup mode.
• A solid orange LED with beep, sounding approximately every 2 seconds, indicates
the door operator is operating on battery power.
• A flashing orange LED with beep, sounding every 30 seconds, indicates the battery
is low.
Red LED:
The door operator'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: Battery does not have to be fully charged to activate the door operator.
Battery Status LED
Red wire (+)
Black wire (-)
19
To reduce the risk of FIRE or INJURY
to persons:
• Disconnect ALL electric and battery
power BEFORE performing ANY
service or maintenance.
• Use ONLY LiftMaster part # 485LM
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.