Item Brochure

3
Technical Specifications and
Characteristics of Leica
Geosystems Batteries and
Chargers
Gerhard Soenser
Abstract
This paper presents an overview of the different
factors regarding batteries and card-readers that
should be considered by the surveyor in order to
ensure the highest quality and best system
performance.
It describes the regulations and guidelines that
batteries and chargers must fulfill in order to comply
with the requirements for being an approved Leica
Geosystems Product.
Introduction
The reliable supply of power to surveying equipment
forms one of the most important preconditions for all
surveying tasks in the field. It is a basic precondition
for the operation of the equipment and an important
factor for the equipment to function faultlessly and
reliably in all environmental conditions.
For batteries to have a long service life, achieve their
optimum performance and function faultlessly, they
must be correctly maintained, stored, charged and
discharged. Incorrect handling of batteries and
chargers may lead to battery malfunction and
premature loss of capacity.
This product information summarises the most
important and useful information on the chargers
and batteries manufactured by Leica Geosystems for
surveying instruments and systems.
Charging technology
Leica Geosystems currently provides quick chargers
as a matter of preference (accelerated charging).
These charge the batteries in a shorter time. They
ensure, thanks to the latest charging technology,
appropriate charging and therefore, the long life of
the batteries. The chargers are temperature-
monitored so that, for example, at low temperatures
the batteries are charged more gently.
Leica Geosystems chargers are divided into two
product lines: Professional 5000 charging stations for
the highest demands and functionality and
Professional 3000 chargers as the simple, low-cost
alternative.
For batteries with 5-pin charging sockets, a simple,
low-cost normal charger with reduced functionality is
still available.
Professional 5000 charging
station
GKL221
The GKL221 is an intelligent charging station with
advanced charging technology. It is suitable for
charging the Leica Geosystems batteries listed below
and ensures the optimal battery operation with your
Leica Geosystems device.
Power supply
The GKL221 can be connected to a mains electricity
supply with an input voltage range from 100 to 240 V
AC by means of the country-specific power cable.
With the optional GDC221 car adapter, the charging
station can be connected to the battery circuit of a
vehicle.
Battery identification
The microprocessor-controlled charging station
recognizes the type of battery connected and derives
the necessary charging parameters such as time and
current. The batteries are optimally and appropriately
charged. This ensures the maximum possible service
life. The charging station can recognise Li-Ion, NiCd
and NiMH cells. Up to five batteries can be connected