Itronix T5200 User Manual page 57

When operating on battery power, the T5200 computer is equipped
with enough internal backup power to maintain memory contents
for about ten minutes each time you exchange batteries.
You can lose data if you remove the existing battery while the
computer is operating on battery power. Before you remove
the battery, turn off the computer by pressing the POWER
button. You can also lose data if the battery is removed for
more than ten minutes.
Removing the battery exposes the internal components of the
computer to the environment. Whenever you remove the
battery, always shield the unit from contaminants such as
liquids, rain, snow, and dust.
1 Turn the unit OFF if it is on battery power only.
2 Press down on the battery near each latch, slide each battery
latch out and remove the battery.
3 Align the battery connectors and install a new battery.
4 Press down on the battery near each latch and slide each latch
into place to secure it.