3.2 Battery Charger - Swift Motorhomes 2013 Owner's Service And Warranty Handbook

The following table shows the rating and circuit
allocation for the three MCB's
MCB Rating
1 10 amps
2 10 amps
2 16 amps
3 10 amps

3.2 Battery Charger

The EC400 system incorporates an
intelligent three-stage battery charger
/ power converter. 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:
Lesiure Load
5A
10A
15A
20A
Output wire colour
White
White (Yellow for heater
Yellow
Black (Blue for water
heater)
Available power
for battery
charging
20A
15A
10A
5A
Description
230v Sockets
Extra 230v Sockets /
Space Heater
Alde heating (EC470 PSU Only)
Fridge / Water Heater / 12v
Charger (internally connected)
WARNING: Under heavy loads the 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
3.3 Smart Charging
On EC468 and EC469 PSU's, the system
incorporates a smart charge feature, which
monitors both leisure and vehicle batteries
and automatically adjusts and directs the
charger power (and solar power if a solar
panel is installed) to maintain the leisure
and vehicle batteries at an optimal level.
3.4 Leisure Battery
A) Type / Selection
For optimum performance and safety it
is essential that only a proprietary brand
LEISURE battery is used with a typical
capacity of 75 to 120 Ah (Ampere / hours).
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.
Before fitting non-standard batteries
please check that the charging profile
described in 3.2 is suitable for the type
of battery by referring to the battery
documentation or battery manufacturer.
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