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EC
60
0
EC600 Power Control System
Issue 2.3
Page 7 of 20
10
th
August 2017
3.3 Battery Charger
The system incorporates an intelligent three-stage battery charger.
During stage 1 the battery voltage is increased gradually while the current is limited to start the
charging process and protect the battery. At stage 2 the voltage rises to 14.4V to deliver the bulk
charge to the battery. When the battery is charged, the voltage is decreased at stage 3 to 13.6V to
deliver a float charge to maintain the battery in the fully charged state. The charger can be left
switched on continuously as required.
The battery charger / power converter also provides power to the leisure equipment when the mains
supply is connected. This module supplies DC to the leisure equipment up to a maximum of 25 Amps
(300 Watts), therefore the available power is distributed between the leisure load and the battery, with
the leisure load taking priority as per the following example:
Leisure load
Available power for battery charging
5A
20A
10A
15A
15A
10A
20A
5A
WARNING
Under heavy loads the Battery Charger case may become hot. ALWAYS ensure the ventilation slots have
a clear flow of air. Do not place combustible materials against / adjacent to the charger.
3.4 Leisure Battery
A)
Type / Selection
For optimum performance and safety it is essential that only a proprietary brand LEISURE battery is
used and it is suggested to select a battery from the NCC Verified Battery Scheme with a typical
capacity of 75 to 120 Ah (Ampere / hours). Depending on the prospective use of the vehicle the
correct type should be selected (A, B or C). A normal car battery is NOT suitable. This battery should
always be connected when the system is in use.
The PSU is configured to work with standard lead acid leisure batteries, and in most cases is also
compatible with the latest range of Absorbed Glass Matt (AGM) batteries. The system is also suitable
for Lithium batteries with built-in Battery Management Systems BMS). Before fitting non-standard
batteries please check that the charging profile described in 3.3 is suitable for the type of battery by
referring to the battery documentation or battery manufacturer.
Some vehicle installations can cater for two leisure batteries connected in parallel. In these cases it is
recommended that two identical batteries are used.
