Shade-X operates on four "AAA" alkaline batteries (6Vdc). To change these batteries, take the Shade-X out of the cradle and locate the battery compartment Phillips head screw on the underside of the instrument. Loosen the screw sufficiently to remove the battery compartment cover. When replacing the batteries, ensure that the polarity is proper as displayed by the diagram on the battery compartment.
Instructions for battery replacement can also be found in the Additional Assistance titled "Shade-X User Manual" at the bottom of this window.