SUUNTO D9 - Manual (Page 103)

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which cannot be tested in advance).
- The time the dive computer has been stored until it gets to the customer. The
battery is installed into the unit at the factory.
Transmitter:
- One 3V lithium battery: 1/2AA (K5546) and O-ring 2,00 mm x 25,00 mm
(K5538).
- Battery storage time (shelf life): Up to three years.
- Replacement: Every two years or more often depending on dive activity.
- Life expectancy at 20°C [68°F]:
- 0 dives/y -> 3 years
- 100 dives/y -> 2 years
- 400 dives/y -> 1 year
The following conditions have an affect on the expected battery lifetime:
- The length of the dives.
- The condition in which the unit is operated and stored (e.g. temperature/cold
conditions). Below 10°C [50°F] the expected battery lifetime is about 50-75%
of that at 20°C [68°F].
- The use of the backlight and audible alarms.
- The quality of the battery (some lithium batteries may exhaust unexpectedly,
which cannot be tested in advance).
- The time the dive computer has been stored until it gets to the customer. The
battery is installed into the unit at the factory.