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1.7 POWER CONSUMPTION
For firmware versions before 2.0, the meter never features the GPS unit and
the battery life does not depend on logging interval or logging state:
• supplied rechargeable batteries (full charge): approximately 70 hours of
continuous use, without backlight
• alkaline batteries: approx. 150 hours of continuous use, without backlight
For firmware version 2.0 and subsequents, see below table: to find out the
battery life, make a crossing between GPS use and logging interval.
All values refer to meter working without LCD backlight, and using the supplied
rechargeable batteries (completely charged).
If using the device in normal measuring mode with the backlight always on and
no GPS, the battery life will be approximately 80 hours with rechargeable batter-
ies and 160 hours with alkaline batteries.
Logging interval No GPS GPS ON and GPS ON and
“GPS power save” “GPS power save”
enabled disabled
Log-on-demand 7 days 30 hours 30 hours
or 1 second
1 minute 9 days 30 hours 30 hours
2 minutes 10 days 30 hours 30 hours
4 minutes 10 days 2 days 30 hours
10 minutes 11 days 4 days 30 hours
20 minutes 11 days 6 days 30 hours
30 minutes 11 days 7 days 30 hours
Notes
• “No GPS” means: model without GPS, GPS unit always OFF or OFF after the first
sample (see “Logging Mode” chapter for details).
• All data in the table have to be doubled if using alkaline batteries.
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