NOTE: The switch knob may be removed when it is in the OFF posi-
tion. This is a security feature to ensure that batteries are OFF. If
the engine will not start because the battery is discharged, follow
recharging instructions described in the Electrical Instructions
section of the Owners Manual.
Bilge pumps will not operate in either the manual or automatic
mode if the batteries are fully discharged. This condition may allow
excessive water into the hull which can damage or sink the boat.
Make frequent checks of battery charge and bilge pump function
when boats are moored and exposed to the elements.
Troubleshooting
Because battery needs can vary substantially depending on a num-
ber of factors in usage from boating locations to number of electri-
cal components on the boat, MasterCraft does not place a specific
battery or batteries in the boat. The company strongly encourages
you to discuss this critical matter with your authorized MasterCraft
dealer prior to purchase and placement of the battery in the boat. All
batteries must have 750 cca (cold cranking amps). Less can result
in too-fast discharge of the battery charge and may leave boaters
stranded on the water. Spiral cell batteries are recommended.
Review all electrical information provided in this Owner’s Manual
prior to first time operation of the boat.
DUAL BATTERIES
Models
All
Purpose
Because of the demanding drain on the electrical system by
modern MasterCraft boats, it has become necessary to implement
a dual battery system. When properly operated, the system will
allow the boat engine to crank over with immediacy and support the
various entertainment options on-board.
Location
Two batteries function from a dual battery switch, which are located
under the port rear storage seat in most models. See the Guide
to Individual Models section of this Owner’s Manual. Battery and
battery switch locations vary by model.
Operation
For normal operation the battery switch should be placed in the
ON position. This allows the engine and all accessories to receive
power. The engine will recharge both batteries with the switch ON.
For transportation of the boat by trailer and during storage, the
battery switch should be placed in the OFF position to allow both
batteries to be isolated from all circuits.
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