Electrical System
General Overview
The 244CC is equipped with a 12V DC Electrical system that can be equipped with an optional AC battery charger.
Boats rigged for single engine installation and do not have battery selector switches installed will be rigged to use x1 Group
27 battery for both the engine, house and windlass systems.
Boats rigged for single engine installation and have the battery selector switch installed will be rigged to use x2 Group 27
batteries for both the engine, house and windlass systems. Key West recommends this option for single engine boats
getting a windlass system due to the high power demand of the windlass
Boats rigged for twin engine installations, and do not have battery selector switches installed, will be rigged for x2 Group 27
batteries. (1) battery for starboard engine and (1) battery for port engine, house and windlass systems.
Boats rigged for twin engine installation with battery selector switches installed will be rigged with x3 Group 27 Batteries.
(1) battery for starboard engine, (1) battery for port engine and (1) battery for house systems that can be used to parallel
start one or both engines.
12V power is distributed to the 12V factory installed systems through individual circuit breakers located beneath their
respective switches on the main switch panels. All 12V systems are grounded individually to a grounding block located
inside the console. The grounding block is than grounded directly to a battery. A 50amp main circuit breaker is installed in
the console to protect the house systems from an overload and is connected either directly to the batteries or the optional
battery selector switch. Additional circuit breakers for the auto bilge pumps and stereo memory are wired directly to either
the battery/batteries or battery selector switch.
The system is designed so that turning the battery switch/switches off will still allow the bilge pumps to function in an
automatic mode. Key West recommends that boats that are going to be left in the water or in a boat lift, where access to the
drain plug is not feasible, be installed with a battery charger to prevent discharge by the bilge pumps. Trim Tabs and
optional power steering are connected directly to the battery and feature overcurrent protection. They do not energize until
the engine ignition switch(s) is turned to the “On”
