MasterCraft NXT22 User Manual

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
number of factors including usage, location and the number of elec-
trical components in use on the boat, MasterCraft does not place
a specific battery or batteries in the boat. The company strongly
encourages you to discuss your battery options with your autho-
rized MasterCraft dealer prior to purchase. All batteries must have
750 CCA (cold cranking amps). Less can result in too-fast battery
discharge and may leave boaters stranded on the water. AGM 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. A running 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
2021MCOwnerManualFINAL.indd 209 8/26/20 1:52 PM

MasterCraft NXT22 Specifications

General

Beam	98 in
Fuel Capacity	49 gal
Seating Capacity	14 people
Weight	4, 200 lbs
Engine	Ilmor 6.0L MPI
Dry Weight	4, 200 lbs
Horsepower	373 HP
Length Overall	22 ft