How to Replace Batteries in a Sentry Safe

Changing Batteries

• 1

  Insert the tip of a paper clip or a ballpoint pen into the small hole underneath the safe's keypad. Push inward while sliding the cover to the right.

• 2

  Remove the battery holder cover and set it aside.

• 3

  Remove the old batteries and replace them with four new AA batteries. Make sure you insert them the right way so their plus (+) and minus (-) signs match up. Use the model printed on the plastic battery holder to guide you.

• 4

  Place the battery holder over the batteries and slide it back into place.

Open Safe When Batteries Die

• 5

  Insert the key for the safe into the key slot and turn it clockwise until the safe's plunger pops out. Remove the key. Make sure the dial is set at zero.

• 6

  Turn the numbered dial to the left until you make three rotations. Make sure the safe's marker passes the zero three times.

• 7

  Turn the dial until you reach the first number of the combination. Make sure the safe's arrow is pointing at this number.

• 8

  Turn the dial to the right until you reach the second number of the combination. Stop at this number, making sure the pointer is at the second number of the combination.

• 9

  Turn the dial to the left again until you reach the third number in the combination. Stop at this number, making sure the pointer at the third number of the combination. If there's a fourth number in the combination, turn the dial to the right until you reach the last number in the combination. The safe should open if you entered the right combination.