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

12-Volt DC System

Fuses and Circuit Breakers

Circuit breakers for main accessory power are located in the AC/DC cabinet (port side of salon). Additional circuit
breakers are located on the starboard side of the upper helm station. Some equipment, such as depth finders and
shower pumps may have secondary fuse protection at the unit. Bilge pump and windlass circuit breakers are located
with the main battery switches in the salon floor.

Battery Switches

The battery switches are located under the
salon floor panel. 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.
! C AU T I ON !
• The parallel switch should be turned on
only in emergencies.
• Never disconnect battery cables or turn
off main battery switches while engines
are running as this can cause damage

Batteries

The batteries supply electricity for lights, engine and generator starting, as well as power to turn on
accessories. Remove the battery caps and check the electrolyte level every 30 days or more frequently in hot weather.
Add distilled water to the cells if necessary.
Corroded battery terminals can be cleaned with baking soda and water. After cleaning the terminals, coat them with a
light film of battery terminal lubricant and tighten all battery connections.
Battery condition can be checked on the "Electrical System Monitor" located on the DC distribution panel in the AC/
DC cabinet on the port side of the salon.

Engine Alternators

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

Battery Charger

In addition to the engine alternators, your yacht is equipped with a battery charger. Thoroughly 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 circuit breaker for the battery charger is located on the salon electrical cabinet and
must be turned on for charging to occur.
CHAPTER 2: FEATURES / SYSTEMS
FUEL
SHUTOFF
VALVES
MAIN DC
SWITCHES
BATTERY SWITCH PANEL
3788 Motoryacht • Owner's Manual Supplement
31
BATTERY
SWITCHES