HDE Firefly, Operating Instructions Manual, Page: 8 / 12

8
BATTERY REPLACEMENT
Replace the four batteries as needed with IEC type CR17345 including Duracell® 123,
Panasonic® CR123A and Energizer® 123. Note: Panasonic® type CR17335 or BR-2/3A
are not acceptable replacements. Two of the four batteries power the voltage detector
and the other two power the white lights. Always replace the two batteries for each
function in pairs, but it is not necessary to replace all four batteries at the same time.
1) Remove the molded plastic inner housing from the aluminum outer housing by
pressing and holding the two latches on the front of the unit and pushing through
the hole in the back of the unit.
2) Pull the battery cover off of the back of the molded housing.
3) Replace batteries as needed for the voltage detector and/or the white lights. Verify
correct battery polarity.
4) Replace the battery compartment cover and push the molded housing back into
the aluminum holder right side up. Ensure both latches snap into place.