For use with various Chamberlain DC Motor Garage Door Openers featuring Backup Battery Systems. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Operates the Garage Door Opener as if the power was still on, plus all safety and security features will be operational
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⚠WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go towww.P65Warnings.ca.gov