20
Battery Replacement Method
Battery life time:
4 to 8 months upon 10times using per day.
Battery change alarm:
Blinking red lights with melody and indicating on
screen touchpad. Open battery cover and replace all 4 PCS of 1.5V AA at once.
Make sure its polarity.
Emergency power supply:
After battery is fully discharged, place 9V battery
on emergency power contact and open the door with password, pattern, RF
card, fingerprint or mobile app.
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