Charging The Batteries - Marquis 720 FLY Owner's Manual

DC e
leCTriCal
DaNgEr
bEFORE STARTING THE ENGINES, FOLLOW THE PROCEDURES DESCRIbED IN SECTION 5. IMPROPERLY
STARTING THE ENGINES CAN bE HAZARDOUS
ACCESSORY bATTERY bANK
The voltage level of the accessory batteries is determined by using the
Room, aft bulkhead) and DC Distribution Panel (Salon Aft
ACTIVATING THE VOLTMETER:
1 . Turn ON the Accessory battery bank master disconnect switch, labeled ACCESSORY, located on the STBD Aft Bulkhead .
2 . Switch ON all three circuit breakers labeled, DC MAIN BREAKER DC BUS;
(Engine Rm, aft bulkhead) .
3 . Switch ON the circuit breaker labeled, PANEL MAIN located on the DC Distribution Center, panel is located in Salon PORT
Aft .
C
Harging tHe
While the engines are running, the alternators generally supply enough power to replace the power used by the yacht's DC
equipment .
The PORT engine is equipped with an alternator that charges the 12-volt accessory battery bank . The DC equipment will eventually
drain the batteries being used without the PORT engine running .
IF THE bATTERIES GET DRAINED, either:
1 . Start the PORT engine or use the onboard battery chargers to recharge the batteries .
2 . If not connected to shore power, run the generator to activate the battery chargers .
NEvEr
NEVER ALLOW THE YACHT'S bATTERIES TO bECOME COMPLETELY DISCHARGED. COMPLETELY DIS-
CHARGING A bATTERY CAN DAMAGE IT SO THAT THE bATTERY CAN NO LONGER bE RECHARGED.
THE bATTERY CHARGER SHOULD ALWAYS bE OPERATING WHEN THE YACHT IS CONNECTED TO
SHORE POWER. TURN ALL bATTERY MASTER DISCONNECT SWITCHES TO THE OFF POSITION IF THE
YACHT IS UNOCCUPIED FOR AN EXTENDED PERIOD OF TIME AND IF THE YACHT IS NOT CONNECTED TO
SHORE POWER.
bATTERY CHARGERS
Five battery chargers are equipped onboard .
• A 25 amp battery charger monitors the voltage levels generator batteries
• Two 80 amp battery chargers monitor the engine batteries
• A 100 amp battery charger monitors the voltage levels of the accessory batteries
• An additional 100 Inverter/Charger monitors the voltage levels of the accessory batteries
Each charger monitors and maintains the voltage levels of one or more batteries . When the chargers are ON, they automatically
charge the attributing battery when the voltage drops below the manufacturers specified level . Each chargers is mounted on the
Engine Room STBD Aft bulkhead .
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YsTem
Cabinet) .
B
atteries
voltmeter located on the DC Bus Distribution Panel (Engine
all located on the DC Bus Distribution Panel
s 2
eCTion
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