Meridian Yachts 490 PILOTHOUSE, Owner'S Manual

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Chapter 11: Electrical System 490 Motoryacht • Owner’s Manual
64
Battery Switch
•
A separate rotary battery switch is provided for each battery.
•
The batteries supply electricity for lights, 12-Volt accesso-
ries, and engine and generator starting.
•
Some "Standby Loads", such as the CO monitors, the auto-
matic bilge pumps, and the stereo memory, are not affected
by the battery switch since they are wired directly to the bat-
tery (see the Wiring Diagrams in this manual for more
details).
Alternators
The engine alternators will keep the batteries properly charged when running at cruising speeds.
Battery Charger
Your yacht features a battery charger. Thoroughly read and understand the battery charger manual before using
the battery charger for the first time.
•
The battery charger will charge the yacht’s batteries whenever the yacht is plugged into 120V/60Hz shore
power and the "BATTERY CHARGER" AC breaker is On.
•
The battery charger is independent of the battery switch. The battery switches do not need to be On for
proper charging.
•
You may use DC powered electrical systems, such as the lights and stereo when the battery charger is On, but
there will be a corresponding drop in charger performance.
•
The parallel switch should be turned on only in emergencies.
•
Never disconnect the battery cables or turn off the main battery switches while engines
are running as this can cause damage to your boat’s electrical components
C AU T I O N !
!
BATTERY
SWITCHES
ENGINE & ELECTRICAL SYSTEM DAMAGE HAZARD!
NEVER run the yacht’s engine and the battery charger at the same time.
C AU T I O N ! !
The battery charging systems (alternator and battery charger) installed on your yacht are
designed to charge conventional lead-acid batteries. Before installing gel-cell or other new
technology batteries, consult with the battery manufacturer about charging system
C AU T I O N ! !