User manual

3.5 Battery indicators
Temperature or internal oxidation can affect the battery voltage. If
you store your Suunto D4f for a long period or use it in cold
temperatures, the low battery warning may appear even though
the battery has enough capacity.
In these cases, re-enter dive mode and check the battery power. If
the battery is low, the Low Battery warning comes on.
Replace
Battery
Battery
Low
12:00
1.12
TH
If the low battery icon appears in surface mode, or if the display
looks faded, the battery may be too low. Battery replacement is
recommended.
NOTE: For safety reasons, the backlight and buzzer (sound)
cannot be activated when the low battery warning is displayed.
3.6 Calendar clock
The calendar clock is the default mode of Suunto D4f .
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