Manual

page 21
Appendix E: Battery Life
Relative Battery Life Comparison
Number of 10 minute samples performed
Continuous "ON" Elapsed Hours (backlight off, no options)
Battery Voltage
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
7.0
7.5
8.0
8.5
9.0
9.5
0 24 48 72 96 120 144 168 192 216
Battery Voltage insufficient for
proper operation, "BAT / LO"
message appears continuously.
Unit operates properly, but
"BAT / LO" message appears
once every 2 minutes, as a warning.
Alkaline
Heavy-Duty Zinc
Lithium battery
supplied w/unit