User's Manual

32
Temperature range
The operational temperature range is from -30°C to +60°C (-22°F to
+140° F). In addition, the unit can be stored at temperatures from
-40°C to +70°C (-40°F to +158°F). Although the unit is designed to
be rugged, do not leave it in direct sunlight or in a parked vehicle in
the sunlight for extended periods.
Batteries perform best at room temperatures. The unit battery pack
also has a very stable capacity as temperature rises above the human
comfort level. However, cold temperatures cause battery life to
drop, and the colder the temperature the greater the reduction in
available battery life. Battery life reduction will also depend upon
other usage conditions, including backlight status, CPU load,
embedded wireless status and the use of power consuming CF
devices. Under very cold conditions (-20°C / -4°F and below), you
can expect your battery life to be shortened by anywhere from 30 to
70 percent.
If you anticipate working under very cold conditions, consider
carrying a fully charged, spare battery in a warm place. The unit is
designed to make battery replacement a simple process. Anything
that you can do to keep the unit and the spare battery warm (for
instance, keeping it in a pocket under your coat) will improve your
battery performance.
At moderate temperatures, you can expect your battery to last about
300
full charge/discharge cycles before its performance noticeably
declines.