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Battery Backup
STEP 1 Install the Battery
To reduce the riskofFIRE or INJURY to persons:
• DisconnectALL electric and battery power BEFORE performing ANY service or maintenance.
• Use ONLY Chamberlain part# 41A6357-1 for replacementbattery.
• DO NOT dispose of battery in fire. Batterymay 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.
1. Unplug the garage door opener.
2. Open the lightlens on the rightside panel ofthe garage door opener.Use a Phillips head
screwdriver to remove the battery cover on the garage door opener.
3. Partiallyinsertthe battery into the battery compartment with the terminals facing out.
4. Connectred (+) and black (-) wires fromthe garage door opener to the corresponding
terminals on the battery.
5. Replace the battery cover.
6. Plug in the garage door opener.
7. Waitfor the green Battery StatusLEDto start flashing before proceeding to test the battery.
STEP 2 Test the Battery
1. Unplug the garage door opener. The battery statusLEDwill wither glowsolid orange
indicating opener is operating on battery power or will flash indicating low battery power. 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
mayrun slower if the batteryis not fully charged. The batterywill take 24 hours to fullycharge.
3. Plug in the garage door opener. Verify the batterystatusLED is flashing green, indicating the
battery is charging.
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