Utilities
Electrical systems
The individual electrical systems are illustrated on pages 5.4 to 5.13.
Batteries
-
12Vsystem_______________________________
Most yachts use a 12 Volt electrical system with either two or three batteries.
Batteries will deteriorate rapidly if not maintained correctly.
Battery isolation switch
All yachts are fitted with a four
way battery isolation switch
which allows the batteries to be
connected in parallel for engine
starting. The following points
should be
noted:-
1 Always switch off batteries
when not required or on
charge.
2 Use one battery for the
engine and the other for
auxiliary uses. When the
auxiliary battery becomes
flat, start the engine using
the engine battery and fully
charge the system.
3 Ensure that auxiliary
batteries are always fully
charged, enabling them to be
used to start the engine
should the engine battery be
flat.
Ensure battery switch is turned to
'both'
or
'1&2'
when engine is
running. Never switch batteries off
when engine is running.
Battery isolation switch
Issue 3
Page 5.1
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