Battery Life & Type
The lock operates on four AA alkaline batteries which may last up to 16 months
**Actual battery life may vary depending on usage conditions.
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.
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.


