Quote:
Originally Posted by Klen
Interesting, didn't know such thing already exist, however i see culprit - what if battery dies and you dont have a hardware key? Then you stay locked out.
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the battery would only be used when you have power failure and i canīt see the system, until you actually use the door release using much battery.
Iīd expect the battery back up lasting for well over 24hrs, and the mains would usually be back online with in 12 hours
