How do you open a dead safe without the key?

Make use of a magnet.

Using a paper clip to open a safe. Perhaps one of the easiest ways to open a safe without a key is to use a paper clip.
Make use of a screwdriver to open a safe without a key.
Opening the safe with the aid of a knife or similar tool.
Drilling through the safe.

Can a digital safe tell if the battery is dead?

Often, the mechanism of your digital lockbox will give you a warning when the batteries are low in power. Don’t expect to receive such a message if you’ve invested in a cheap safe. Here are some of the most common symptoms that your safe’s battery is dead:

What to do if your Sentry Safe battery dies?

The battery won’t die only when the door of your safe is open so there has to be a way to replace it from the outside. The only place I’ve ever seen safe batteries kept is under the keypad. If it’s square it should lift up a bit and then you can pull it off and if it’s round it should rotate a bit and then pull off.

What happens if your keyless lock battery dies?

You can unlock your door before you ever get to the front porch making entry into your home fast and easy. Along with this convenience, however, you’ll find there may be a few glitches along the way. One of the most common problems homeowners have with keyless entry systems is the battery in their system dying.

Can a battery die when the door is open?

The battery won’t die only when the door of your safe is open so there has to be a way to replace it from the outside. The only place I’ve ever seen safe batteries kept is under the keypad.