Description; Connections; Charging Process - Truma BC 416 IU Operating Instructions Manual

The automatic charger may not be used to charge non-
chargeable batteries and / or nickel-cadmium batteries.
If the automatic charger is used to charge these batteries, the
case can burst explosively.

Description

The automatic charger contains state-of-the-art microproces-
sor-controlled charging technology. This technology allows
high performance whilst remaining lightweight and small.
Thanks to the top quality electronics, it works highly efficiently.
The automatic charging process is gentle to the battery and pre-
vents damaging overcharging, which in turn significantly extends
the service life of the battery. After the battery and mains supply
have been connected, the automatic charger is ready for use.
The automatic charger is designed for continuous operation
and parallel mode. Consumers can be continuously connected,
switched on or disconnected. Consumers are supplied and
the battery charged at the same time. The consumer current
here should be smaller than the maximum charging current as
otherwise the battery will not charge.
If the automatic charger is operated in conjunction with a
temperature sensor for the battery, the automatic charger
regulates the charging current automatically depending on the
operating temperature. This ensures particularly effective and
gentle charging of the battery. If a temperature sensor is not
used, the automatic charger regulates the charging process in
the same way as a battery temperature of 20 °C.
The device is designed for operation in an ambient tempera-
ture of up to 35 °C. If the temperature inside the device in-
creases due to a lack of circulating air or due to the fact that
the ambient temperature is too high, the charging current is
automatically reduced gradually.
18

Connections

1
Fig. 1: Connections
1 Low heat device socket connection 230 V ~
2 Changeover switch gel or AGM (OPTIMA® YT S) /
liquid electrolyte battery
3 Connection for temperature sensor
4 Function display. LED shines during normal operations and
flashes in the event of a malfunction (see Troubleshooting)
5 Input B+ measuring line from the battery
6 Output + charging line battery
7 Output - charging line battery

Charging process

The automatic charger has an electronic reverse battery pro-
tection. The charging current is only released if the battery is
correctly connected and there is a minimum voltage of 1.5 V.
While it is being charged, the battery voltage is monitored
constantly by way of the B+ measuring line. The charging
process is carried out in accordance with the charging refer-
ence line with a minimum of performance loss (Charging
reference line, see fig. 2).
2 3 4 5 6 7