this post was submitted on 03 Aug 2026
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me_irl
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What happens if the power goes out and you're locked outside?
They usually are battery powered, and warn you well in advance when it has to be changed.
yeah mine gets super slow to actuate when the batteries are low. I change it before each winter.
if there is a battery failure, you can use a 9V battery to provide temporary power to the lock. so I keep a couple in the garage behind another electronic lock. and if that fails, I'll borrow a 9V battery from a neighbour
Mine has a secret charge port so you can just plug in any battery or even your phone.