Starter Battery (Battery I) - Parallel Switching; Maintenance; Disposal - Truma BC 616 IU Mode D'emploi

Starter battery (battery I) – parallel switching
Driving mode
In driving mode, the starter battery (battery I) is charged by
the vehicle's dynamo. As long as the generator is running
and the voltage of the starter battery goes above 13.7 V, the
supply battery and the starter battery operate in parallel. The
supply battery is also charged by the dynamo. If the voltage
of the starter battery drops below 13.2 V, the parallel circuit is
disconnected again.
Mains operation
(all voltage values with respect to a battery temperature of 20 °C)
When connecting to the mains of 230 V, the supply battery
is charged first. Once the supply battery reaches a voltage of
14.1 V, it is switched in parallel with the starter battery. If the
charging current rises to its rated value due to a user and the
battery voltage falls below 13.2 V, then the parallel connection
is automatically disconnected. The starter battery thus always
remains ready to start.
Solar operation
When connecting external solar cells, the starter battery is
also charged provided that the voltage of the supply battery
has reached 14.1 V. If the voltage of the supply battery drops
below 13.2 V, the parallel circuit is disconnected again.
20

Maintenance

The power supply must always be disconnected before
performing any maintenance work on the device.
Clean the device and the ventilation slits with a dry and fluff-
free cloth.

Disposal

The device must be disposed of in line with the administra-
tive regulations of the respective land in which it is used.
National regulations and laws (in Germany, for example,
the Altfahrzeug-Verordnung [old vehicle directive]) must be
observed.