Leica Zeno 5 User Manual page 97

Zeno 5, Using Windows Embedded Handheld 6.5 or higher
Step Description
Once the Zeno 5 shuts down, it cannot be switched on until a fresh battery
is installed, or the unit is inserted in a docking station or cradle.
Once the battery is removed, the super-capacitor will preserve the
data stored on the Zeno 5 for approximately 5 min. It is critical that
you install a charged battery before this time elapses.
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