Yes, it is highly recommended to retain your backup key. Although keypad and smart locks are battery-operated, having a backup key ensures you can access your property in case the batteries die, there is a technical issue, or the electronic system fails.
If you don't have a backup key and the electronics fail, you'll need to hire a locksmith to gain entry. Since the lock includes a backup key option, the warranty does not cover situations where access is lost due to not having a key. To avoid inconvenience, always store your backup key in a safe and accessible location.
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