All safety and security features operate as if power was on.
Audible signal sounds
Bright LED lights alerts.
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Battery Backup System
Keeps opener operating. Operates the garage door opener
(and safety features) as if the power was still on. Sounds
alerts. Audible signal sounds when door is moving under
battery power. Charge notifications.Bright LED lights let you
know when the Battery Backup is charging, in use, or when
the batteries need to be replaced.