How Do I Change the Batteries on My Safe?

Need Help with Your Digital Lock?

Most digital lock problems are related to low, dead or Non-Alkaline batteries. For most SentrySafe models, we recommend the following:

  • Refrain from using rechargeable or Non-Alkaline batteries.
  • Use quality name brand batteries.
  • All batteries have expiration dates on them. Ensure those dates are as close to 10 years out from current year as possible.
  • When changing batteries do not mix brands (i.e. all 4 batteries should be Duracell) or mix old batteries with new batteries.

For SentrySafe models that begin with FP and FPW:

Don’t know your model number? Find it here.

  1. Remove battery compartment from inside door.
  2. Insert 2-batteries as indicated (Do not use rechargeable, or Non-CR123 Lithium batteries. Do not mix old with new batteries or mix brands of batteries).
  3. Replace battery compartment
This safe has a Battery Auxiliary Override–
  1. If battery is low and unable to operate open, use Battery Auxiliary Override.
  2. This should not be used as a primary means of gaining entry into safe.
  3. Open the silicone cap found on the side of the electronic lock.
  4. Carefully remove jumper wire and attach a 9V battery.
  5. If attached properly, you will get 3 chirps from electronic lock.
  6. Enter 5 digit code, and pull handle to open.
  7. Once opened, remove 9V, replace jumper in it's storage compartment, and replace Lithium Cells inside door per instructions.
  8. Verify lock function before reclosing unit.
Slide open battery cover below keypad.Slide open battery cover below keypad.
Slide open battery cover below keypad.

For SentrySafe models that begin with A3, A4, A5; J3, J4, J5; S0, S3, S4, S5, S6, S7, S8, SB, SBW, SC, SW; J3, J4, J5; L0, L3; V:

Don’t know your model number? Find it here.

Slide open battery cover located just below keypad:
  1. Insert a paper clip or pen point into small hole on left side of the cover.
  2. Push in on left side of cover while sliding it to the right.
  3. Remove battery holder.
  4. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  5. Put battery hold back into safe.
  6. Slide cover back into place.
Slide open battery cover below keypad.Slide open battery cover below keypad.
Slide open battery cover below keypad.

For SentrySafe models that begin with CS, CSW, DA, DS, KS, KSW, MS, MSW, OA, OS:

Don’t know your model number? Find it here.

  1. Check bottom edge of electronic lock and if equipped with shipping screw, remove and dispose of.
  2. Turn electronic lock clockwise (right) and remove.
  3. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  4. Replace the electronic lock and turn counterclockwise (left) to reattach.
Turn electronic lock clockwise.Turn electronic lock clockwise.
Turn electronic lock clockwise.

For SentrySafe models that begin with SFW082B, E, F, G; SFW123B, E, F, G; SFW205B, E, F, G; STW123G; STW205G:

Don’t know your model number? Find it here.

  1. Pull out the battery drawer on side of electronic lock to the right.
  2. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  3. Replace the electronic lock by sliding in to the left.
Pull out the battery drawer.
Pull out the battery drawer.

For SentrySafe models that begin with SFW123T, U; SFW205T, U:

Don’t know your model number? Find it here.

  1. Remove battery compartment from inside door.
  2. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  3. Replace battery compartment.
This safe has a Battery Auxiliary Override
  1. If battery is low and unable to operate open, use Battery Auxiliary Override.
  2. This should not be used as a primary means of gaining entry into safe.
  3. Open the silicone cap found on the side of the electronic lock.
  4. Insert a 9 volt battery into slot.
  5. If attached properly, you will get 3 chirps from electronic lock.
  6. Touch center of electronic lock to wake up keypad.
  7. Enter 5 digit code, and turn handle to open.
  8. Once opened follow instructions above to change batteries in compartment located inside of door.
Remove battery compartment from inside of safe door.
Remove battery compartment from inside of safe door.
Enter 5-digit code and turn handle to open.
Enter 5-digit code and turn handle to open.

For SentrySafe security models that begin with ESB; PL:

Don’t know your model number? Find it here.

  1. Insert override key, and turning dial to unlock position will be required to open door.
  2. Remove battery compartment from inside lid of door.
  3. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  4. Replace battery compartment.
Remove battery compartment from inside lid of door.Remove battery compartment from inside lid of door.
Remove battery compartment from inside lid of door.

For SentrySafe security models that begin with QAP1E, QAPBE1, QAP2E, QAP2EL:

Don’t know your model number? Find it here.

  1. Insert and turn clockwise (right) override key to unlock position will be required to open door.
  2. Pull out battery pack (keep battery pack connected to wires).
  3. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  4. Replace battery pack cover.
Pull out battery pack.
Pull out battery pack.

For SentrySafe security models that begin with CA; HL:

Don’t know your model number? Find it here.

  1. Unscrew and remove override key lock cap.
  2. Insert key and turn counterclockwise (left) to unlock door (notch on key in upward position).
  3. Open door, remove battery compartment cover in direction arrows are pointing.
  4. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  5. Slide battery compartment cover back into place (make sure cover is locked in place).
Override key lock cap.Override key lock cap.Override key lock cap.
Override key lock cap.

For SentrySafe models that begin with X:

Don’t know your model number? Find it here.

  1. Remove cover to override key between dial and keypad.
  2. Insert key and turn counterclockwise (left), then turn dial clockwise (right) to open door.
  3. Remove battery compartment cover in direction arrows are pointing.
  4. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  5. Slide battery compartment cover back into place (make sure cover is locked in place).
Remove battery compartment cover.Remove battery compartment cover.
Remove battery compartment cover.

For SentrySafe security models that begin with T:

Don’t know your model number? Find it here.

  1. Turn electronic lock counterclockwise (left) and remove.
  2. Unlock door with override key, pull handle down to open.
  3. Remove key hook plate located on backside of door by sliding upward.
  4. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  5. Slide key hook plate back into place (make sure cover is locked in place).
Turn electronic lock clockwise and remove. Slide key hook plate back into place.
Turn electronic lock clockwise and remove. Slide key hook plate back into place.

For SentrySafe security models that begin with DH:

Don’t know your model number? Find it here.

  1. Turn electronic lock counterclockwise (left) and carefully pull away from mounting plate.
  2. Insert 4-batteries as indicated (Do not use rechargeable, or Non-Alkaline. Do not mix old with new batteries or mix brands of batteries).
  3. Carefully position keypad on mounting place.
  4. Ensure no wires are between keypad and mounting plate to avoid pinching of wires.
  5. Turn keypad clockwise (right) to attach to mounting plate.
Turn electronic lock clockwise and pull away from mounting plate.Turn electronic lock clockwise and pull away from mounting plate.
Turn electronic lock clockwise and pull away from mounting plate.

Sign up for updates and Offers from SentrySafe

New subscribers get 10% off your next purchase on the SentrySafe store.

*Only customers in the U.S. will receive these emails from SentrySafe. Discount applies to items shipped within the contiguous United States only.