What happens if the battery runs out? Is there an emergency opening?
- Share
- Issue Time
- Nov 13,2026
No guest gets locked out. Our locks use AA batteries with a low-voltage alarm, and every lock has an external power port plus mechanical keys as emergency backup.
Battery life
Powered by 4 AA batteries, lasting 5-10 months in normal use.
Low voltage alarm
An alarm sounds when voltage drops below 4.8V to remind you to change batteries.
Emergency power
Connect a battery case with 4 AA batteries to the external power port and unlock - no need to break the door or cabinet.
Mechanical keys
Every hotel door lock ships with 2 mechanical keys; a shared master mechanical key is available on request.
For centralized power, a transformer can convert city AC power to DC 6V to supply all locks.


