User manual

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Measuring Preparation /
Setting up
TPS400-5.0.1en
)
When using the GEB121 battery, remove
the spacer for the GEB111 from the battery
compartment.
)
Charging / first-time use
• The battery must be charged prior to using for
the first time because it is delivered with an
energy content as low as possible.
• For new batteries or batteries that have been
stored for a long time (> three months), it is
effectual to make 3 - 5 charge/discharge cycles.
• The permissible temperature range for charging
is between 0°C to +35°C / +32°F to +95°F. For
optimal charging we recommend charging the
batteries at a low ambient temperature of +10°C
to +20°C/+50°F to +68°F if possible.
• It is normal for the battery to become warm
during charging. Using the chargers recom-
mended by Leica Geosystems, it is not possible
to charge the battery if the temperature is too
high.
)
Operation/Discharging
The batteries can be operated from -20°C to
+55°C/-4°F to +131°F.
Low operating temperatures reduce the capacity
that can be drawn; very high operating temperatures
reduce the service life of the battery.