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DDL801-5HBS External Power Source & Battery Instructions

Updated over 2 weeks ago

Battery Life & Type

  • The lock operates on four AA alkaline batteries which may last up to 10 months

    **Actual battery life may vary depending on usage conditions.

  • The battery compartment supports up to eight batteries, extending battery life and reducing replacement frequency.


How to Apply an External Power Source

When the battery level is low and the door cannot be unlocked from outside, connect a 5V power bank to the door lock to supply emergency power.

  • Once powered, unlock the door as normal.

  • Replace the batteries promptly after unlocking.

  • In case of a system malfunction that prevents unlocking, connecting a 5V power bank will also restart the system automatically.


Low Battery Alert & Replacement

  • When the system awakens, it automatically checks the battery voltage. If the voltage is low, a voice prompt will announce: “Low battery, please replace the battery” upon unlocking.

  • The alert will turn off automatically after the notification.

  • To replace the batteries, Press and hold the triangular push area (as indicated), then slide the battery cover upward to remove it and replace the batteries.

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