Batteries; Operating Principles - Leica Zeno 5 User Manual

3.2
3.2.1
Charging / first-
time use
Zeno 5, Operation

Batteries

Before attempting to install, use or charge the battery pack, it is critical that you
review and follow the important safety guidelines, described in the following chap-
ters.

Operating Principles

• The battery must be charged prior to using it for the first time because it is deliv-
ered with an energy content as low as possible.
• The permissible temperature range for charging is between 0°C to +40°C/ +32°F
to +104°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
recommended by Leica Geosystems, it is not possible to charge the battery if 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
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