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Chapter 4
BATTERY (12 VOLTS) DESCRIPTION
On board the boat’s direct current (DC) is stored in the
ship’s “wet cell” batteries. There are 2 engine starting
batteries (one for each engine) and a “house” battery. The
batteries may look identical but their functions are specifi c
and unique.
BATTERY SPECIFICATIONS
Battery
Type
Group
CCA @32
Degrees F.
Reserve
Capacity
Engine
Cranking
31A 1190 195 min.
House 31 A 1190
not available
BATTERY TERMINOLOGY
Group- Batteries
are divided into groups which identify
the height, length, and width of the battery. This is useful
information should a replacement battery become neces-
sary.
Cold Cranking Amps (CCA)- This rating measures the
cranking power a full charged marine battery has available
to start at 32 degrees F. Basically, the higher the rating the
greater starting power of the battery.
Reserve Capacity (RC)- As usage on the boat increases
so does the need for more reserve capacity. The reserve
capacity represents the length of time in minutes a new
fully charged battery can maintain the boat’s electrical
needs without the engine running or in the event the al-
ternator fails.
S T A R B O A R D
ENGINE
STARTING
BATTERY
HOUSE
BATTERY
PORT
ENGINE
STARTING
BATTERY
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