Dometic WAECO CombiPower 2012 Installation Manual page 74

_CombiPower_IA_DE-IT.book Seite 74 Freitag, 21. Oktober 2011 8:10 20
Technical description
5: U Phase (floating)
The U phase serves to maintain the battery capacity (100%).
If DC loads are connected, they are powered by the device. Only if the power
required exceeds the capacity of the device is this surplus power provided by
the battery. The battery is then discharged until the device re-enters the I
phase and charges the battery.
6: 14-day conditioning
Every 14 days, the battery charger switches back to phase 2 in order to
revive the battery. This prevents any fatigue symptoms such as sulphation.
Charging with the battery temperature sensor
The battery temperature sensor supplied with the device needs to be con-
nected. This adapts the charging voltage to the battery voltage. The charging
voltage during the U0 phase is increased or reduced according to the battery
temperature (see the following diagram):
12 V
15
14
13
12
11
-30 -20
5 A/2.5 A charger (second battery connection)
The device has a connection for a second battery (3-step charger). You can
charge a small battery (such as an automotive battery) using this connection.
The charging voltage is 14.4 V or 28.8 V. The maximum charging current is
5 A or 2.5 A.
74
-10 0 10 20
CombiPower
30 40 50 60
24 V
30
28
26
24
22
EN