Operator’s Handbook for
Fassmer rescue boats Type RR 4.2
Document 40.0420-019.01.01.0
Art. No. 135897
Mod. 0 Lange/WZ 03.11.2006
47
11.3 Electric plant maintenance:
Most rescue boats do not have a battery or electric system.
Boat with battery:
The power supply is provided by a 12V 100 % maintenance-free Gel-batteries
with a capacity of 65Ah each (1).
Replace batterie only with equivalent gel-
type batterie. Do not use liquid acid based batterie.
Continuous heat can
reduce the battery life.
Fig. 27
Battery charge levels:
To determine the charge of the battery it must remain unused for about one
hour i.e. no engine starting, no lights and no battery charging. Switch the
battery change over switch to position “1” and check the first battery with a
voltmeter at the socket on the steering console (3). Proceed the same way to
charge the second battery.
Voltage:
$
10.5V: Battery completely discharged and damaged.
Replace immediately with the same type.
$
11.4V: Danger of damage. Charge battery immediately
11.6V: Battery almost empty. Charging recommended.
12.7V: Battery 100% charged
13.8–14.1V: Correct charging voltage with dynamo or battery charger active.
14.4 V: Gasing voltage! Excessive charging voltage.
Danger of damage and explosion through battery gasses
When the engine is running, the battery will be charged through the alternator
on the engine.
For charging aboard, one of the following is installed:
!
Trickle charging through an automatic charger aboard the ship:
A charging current of 12V DC will be led through a cable and plug in the
superstructure’s back wall via a charging diode routed to the batteries.
Remove the cable before launching.
!
Trickle charging through an automatic charger aboard the rescue boat (3):
A charging current of max. 50V AC will be led through a cable and plug
in the superstructure’s back wall to the charger. Remove the cable
before launching.
!
Trickle charging through a solar power plant:
The batteries will be maintained by an individual solar generator per
battery, on the roof of the boat. Charging is automated with a charging
regulator. Deeply discharged batteries should be fully charged by the
engine generator or a shipside charger! The solar generator should be
cleaned regularly to provide trouble free service.
Important:
To prevent unintentional discharge and destruction of the
batteries, switch off all consumers and the battery switch before
leaving the boat.
