Yes. We cannot guarantee the safe will properly operate if an old or used battery is installed.
You can revert to the factory set Master Code if you cannot find your personalized code. Our support bot can show you how.
Registering your new safe not only ensures you can take advantage of the full product warranty, it also allows us to get in contact with you should there be any product recalls.
ALL of our safes come with the same factory set master code. Creating your own custom access code gives your valuables one more level of protection.