4.2.1
Operating Principles
•
The battery must be charged before using it for the first time because it is
delivered with an energy content as low as possible.
•
The permissible temperature range for charging is from 0 °C to +40 °C/
+32 °F to +104 °F. For optimal charging, we recommend charging the bat-
teries 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 recommended by Leica Geosystems, it is not possible to charge
the battery once the temperature is too high.
•
For new batteries or batteries that have been stored for a long time
(> three months), it is effectual to make only one charge/discharge cycle.
•
For Li-Ion batteries, a single discharging and charging cycle is sufficient. We
recommend carrying out the process when the battery capacity indicated
on the charger or on a Leica Geosystems product deviates significantly
from the actual battery capacity available.
•
The batteries can be operated from −30 °C to +60 °C/−22 °F to +140 °F.
•
Low operating temperatures reduce the capacity that can be drawn; high
operating temperatures reduce the service life of the battery.
4.2.2
Changing the Battery
☞
The batteries are hot-swappable. You can remove an empty battery
and replace it with a charged one without turning off the device com-
pletely. Before removing an empty battery, put the device into sleep-
mode. After replacing the battery you can resume normal operation.
4
4
3
3
2a
2a
2a
2b
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☞
Ensure that the handheld is put into stand-by mode.
1.
Place the Zeno 20 on a stable surface, with the back side facing up.
2.
While pushing the release lever to the position “unlocked”, open and
remove the cover of the battery compartment.
3.
To release the battery from the compartment, press down the latch.
4.
While pressing down the latch, lift the battery with your thumb and
remove it from the compartment.
First-time use/
charging batteries
Operation/Discharg-
ing
Replacing an Empty
Battery
Remove the Battery:
Step-by-step
Operation
27
