Calculated Industries 9530 User Guide - Manual (Page 41)

User’s Guide — 37
Battery Information
Your calculator is powered by a single 3
volt Lithium CR-2032 battery. This
should last upwards of 800 hours of
actual use (1 year plus for most people).
Should the display become dim or
erratic, replace the battery.
WARNING
Because the batteries contain hazardous
chemicals, please use caution when
disposing of old batteries. Keep them
away from animals and young children.
!