Item Brochure

8
Defective batteries
Even if handled correctly, statistics show that a small
number of batteries can still be expected to fail
prematurely. Never replace a suspected defective cell
in a battery pack.The cells in a battery pack are all
from the same manufacturing batch and thus have
the same manufacturing tolerances.If new and old
cells are mixed, the weaker (old) cells in the battery
pack are more heavily loaded and further failures are
inevitable. For this reason, the entire battery pack is
always replaced in Leica Geosystems service centres.
The Li-Ion and camcorder type batteries are in sealed
housing and the cells cannot be replaced.
Life
The life of batteries is primarily defined by the
following
factors:
 Electrical loading
 Charging method
 Temperatures on charging, discharging and
storage
 Quality of the cells
Losses in capacity caused by incorrect charging are
practically excluded with the Leica Geosystems
chargers that have special switch-off criteria to
protect the battery. Reduction in battery capacity is
normally due to age. However it can also be the
result of storage at excessively low or high
temperatures.
The suppliers who provide batteries to Leica
Geosystems are among the leading manufacturers of
batteries and guarantee good quality.
Protecting the environment /
disposal
For reasons of environmental protection and safety,
used or defective batteries must not be thrown away.
They must be correctly disposed of in a discharged
state. Follow the applicable national regulations on
disposal.
Supply from other 12 V DC
sources
GEV71 cable
For the supply of power to Leica Geosystems
equipment from external 12 V DC networks (i.e.
vehicle electrical systems) the GEV71 car battery
connecting cable must be used. This is connected to
the standard battery cable used for Leica Geosystems
external batteries.
Protection
The GEV71 cable protects the instrument from
damage due to pole reversal, voltage spikes occurring
over a limited period and electrostatic discharges.
The cable also provides deep discharge protection to
the connected battery.
Malfunctions
A "basic suppressor" is integrated into the adapter to
prevent malfunctions. Large interference spikes may
arise in vehicle electrical systems when the engine is
running or when other loads are switched on (e.g.
electric windows). These spikes often cannot be
sufficiently attenuated by the basic suppressor. If
vehicle electrical systems are used to supply power, it
is imperative that the engine and other loads are
switched off to prevent malfunctions.
Mains supply
If a 12 V DC source supplied from the mains is used,
the relevant information and advice from the
manufacturer on proper use and safety must be
observed.
Customer benefits from the
use of Leica Geosystems
accessories
The batteries available from Leica Geosystems are of
the highest quality in respect of temperature
tolerance, recharging capability, operating time and
cycle behaviour.
By using Leica Geosystems chargers and observing
the recommendations contained in this document,
the user can benefit from the following significant
advantages:
 Long battery life
 Reliable supply of power in the field
 Batteries and chargers compatibly matched
 Quick charging of batteries
 Prevention of battery memory effect
 Trickle charging after completion of charging
 Microprocessor-controlled and -monitored
charging
 Discharging with regeneration charging of the
batteries using the GKL221 charging station