12-Volt Dc System; Fuses And Circuit Breakers; Battery Switches; Batteries - Bayliner 3788 Command Bridge Owner's Manual

12-Volt DC System

Fuses and Circuit Breakers

Fuses and circuit breakers for main accessory power, float switches and windlass power are located in the AC/DC
cabinet (port side of salon). Electronic's power is provided at the upper helm station. Some equipment, such as depth
finders and shower pumps may have secondary fuse protection at the unit.

Battery Switches

A separate rotary battery switch is provided for each battery. In addi-
tion, a parallel switch is provided at each helm to enable you to start
the engines using all engine batteries in the event that engine battery
power is low.

Batteries

The batteries supply electricity for lights, engine and generator start-
ing, as well as power to turn on accessories. Periodically remove the
battery caps and check the electrolyte level. If the zinc plates are
exposed, add distilled water until they are covered. Corroded battery
terminals can be cleaned with baking soda and water. After cleaning
the terminals, coat them with a light film of grease. Be sure all battery
connections are tight.
Battery condition can be checked on the "Electrical System Monitor"
located on the DC distribution panel. The condition of the accessory
battery can be read on the starboard engine voltmeter when the acces-
sory battery switch is in the ON position. The starboard voltmeter will
register the accessory battery state even when the engines are shut
down and the ignition switches are turned off.

Engine Alternators

The engine alternators will maintain proper charge levels in the engine and accessory batteries (some situations may
require running engines at 1200 RPM to initiate charging).

Battery Charger

In addition to the engine alternators, your yacht is equipped with a battery charger. We recommend that you thor-
oughly read and understand the battery charger manual, provided in your yacht's owner's packet, before using the
charger. The battery charger is located in the utility room.
The battery charging systems (alternator and battery charger) installed are designed to charge
conventional lead-acid batteries. Before installing gel-cell or other new technology batteries,
consult with the battery manufacturer about charging systems requirements.
CHAPTER 3: COMPONENTS / SYSTEMS
CAUTION
!
3788 Motoryacht • Owner's Manual Supplement
INVERTER
SWITCH
THE BATTERY SWITCHES AND THE INVERTER
SWITCH ARE LOCATED ON THE STARBOARD
SIDE OF THE COCKPIT
7
BATTERY
SWITCHES