BOAT FEATURES AND OPTIONS
© 2003-2018 Ken Cook Co.
SECTION
9
Bass l
9 - 7
DC SYSTEM
Fire/Explosion Hazard: Always use caution when
operating and maintaining the DC electrical system. Fire or explosion may
result from improper use of the DC electrical system.
Most boats use a 12-volt common negative ground DC system. DC systems are
usually the primary electric supply for lights, pumps, blowers, engine starting, etc.
Boats require at least one battery per engine. Multiple-battery systems consist of a
cranking battery for each engine and additional batteries that supply auxiliary
power to DC electrical circuits.
Battery switches control battery power distribution and disconnect the batteries
from the boat’s electrical system. The engine’s charging system charges batteries
connected to the charging system when the engines are running.
Battery isolators prevent accessory loads and other batteries from depleting power
from charged batteries. Isolators also allow the engine’s charging system to isolate
the alternator charging output and distribute the charge among all batteries
according to individual need.
The main DC control panel may feature a voltmeter, battery test switch, fuses,
circuit breakers and a master breaker switch.
Fire Hazard: Never reset a breaker that has been
automatically tripped or replace a fuse that has blown without first identifying
and correcting the cause of the problem. A fire could result.
Fire Hazard: DO NOT exceed the recommended fuse
sizes or bypass the fuse safeguard. Always install the proper (type and rating)
fuses whenever replacing or changing fuses.
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