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3 months or more! When the battery is dead you just charge it and go!
Sorry, there was a problem. Please try again later.Ive had mine for about a month and I installed it fresh from the box without charging it, I just had to pull the battery out to charge it 2 days ago. It may last longer though if the battery was only partially charged from the factory. Thankfully it has a key you can use to manually open the lock as it does take a few hours to charge.
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