Battery Backup - Chamberlain B2202 Instruction Manual

Battery Backup

Install the Battery
MODEL B2212T
To reduce the risk of FIRE or INJURY to persons:
Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
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Use ONLY Chamberlain part # G4228 for replacement battery.
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DO NOT dispose of battery in fire. Battery may explode. Check with local codes for disposal
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instructions.
ALWAYS wear protective gloves and eye protection when changing the battery or working around the
battery compartment.
The 12V 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 may run slower and the following features are disabled:
Garage door opener lights
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myQ® App control and monitoring
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Unattended close including Timer-to-Close
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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.
Test the Battery
Depending on the power level, the battery may need to charge before performing the test. The garage door
opener must be unplugged to test the battery.
1. Open and close the door using the remote control or door control. While the motor is on, the battery
status LED will either glow solid orange indicating opener is operating on battery power or will flash
indicating low battery power. NOTE: The garage door opener may run slower if the battery is not fully
charged.
2. Plug in the garage door opener. Verify the battery status LED is flashing green, indicating the battery
is charging.
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.
Battery Status
Green battery status LED: All systems are normal.
A solid green LED light indicates the battery is fully charged.
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A flashing green LED indicates the battery is being charged.
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Orange battery status LED: The garage door opener has lost power and is in battery backup mode.
Solid orange LED while the motor is on, indicates the garage door opener is operating on battery power.
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A flashing orange LED while the motor is on, indicates the battery is low.
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The opener beeps every 2 seconds while operating on battery power.
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Red battery status LED: The battery needs to be replaced.
A solid red LED indicates the battery will no longer hold a charge. Go to chamberlain.com to purchase a
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replacement battery to allow your system to operate during a power outage.
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