BATTERY BACKUP (BBU) OPERATING
INSTUCTIONS
1. Test the installed BBU with the motor unit.
To test the BBU, disconnect the motor unit power cord from the
electrical outlet.
• A solid yellow LED indicates the BBU is operating on battery power.
• A flashing yellow LED with beep indicates the BBU is operating on battery power and
that the battery charge is low.
• To test the BBU is functioning properly, open and close the garage door.
• Re-connect the motor unit power cord back into the electrical outlet.
• Verify that the green LED is flashing on the BBU (indicates that the BBU is now
charging).
• Test completed
2. Charge the battery.
• Allow the batteries 24 to 48 hours to fully charge before using the BBU system.
A fully charged BBU supplies 24V DC to the motor unit for one to two days of normal
operation during an electrical power outage. If the battery voltage drops too low, the
batteries will disconnect and the motor unit will no longer operate under battery power.
After the electrical power has been restored, the batteries will recharge within 48 hours.
Under normal usage batteries will last 3 to 5 years.
To obtain maximum battery life and prevent damage, also disconnect the battery backup
if you unplug the motor unit while on vacation or any other extended period of time.
NOTE: Door operation may be limited until batteries are fully charged. The
motor unit’s lights will not turn on during BBU mode.
