YSI Level Scout - Manual (Page 35)

Reinsert the battery connector making sure to align the PCB
tab into the correct housing slot
.
Push the connector down far enough that the retaining tabs
have bottomed out in the entry groove. Rotate the connector
35º clockwise until the tabs line up with the retaining slot.
Release pressure on the connector allowing the tabs on the
circuit board to seat in the retaining slot.
Verify that the tabs on the circuit board are fully seated in the
retaining slot. Failure to do this can cause damage to the
connector during cable installation.
Figure 4.7
Figure 4.8
Figure 4.9
YSI Incorporated Level Scout 33