CASIO fx-50FH II Scientific Calculator Battery Replacement

ID: 151631

Description: This guide demonstrates the process of...

Steps:

1. To turn the calculator off, first press the "shift" button.
2. Release the "shift" button, then press the "AC" button.

3. Place the calculator face down, then use a Phillips #00 screwdriver to remove the single screw securing the battery hatch in the top right corner.

4. Push the battery hatch to the right until it slides off.

5. Put on a pair of protective gloves before handling the battery to eliminate the risk of chemical burns.
6. Insert the tip of a spudger into the indent on the right-hand side of the battery to lift the edge of the battery up.
7. Lift the battery up and out.

8. Inspect the battery compartment any alkaline residue.
9. If no residue is present, skip to Step 7.

10. Use a cotton swab dabbed with white vinegar to wipe the alkaline off the battery compartment.
11. Use a dry cotton swab to remove the vinegar and alkaline residues.
12. Let the battery compartment dry completely.

13. Insert a new LR44 1.5V alkaline button battery into the compartment, with the positive sign facing up.

14. Reattach the battery hatch by sliding the hatch in from the right to the left.

15. Use a Phillips #00 to secure the screw.