2023 OWNER’S MANUAL 
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 204
Troubleshooting
Whenever a breaker trips repeatedly, this indicates a situation 
requiring prompt attention. You should take the boat to an 
authorized MasterCraft dealer for service. If you attempt self-
repair, MasterCraft is not liable for any resultant damages.  
SINGLE BATTERY
Location
The location of the battery switch varies depending on the model 
in question. On the NXT, the switch is found under the dash. On the 
ProStar, it is found under the center jump seat. 
Operation
For normal operation, the battery switch should be placed in the 
“On” position. This allows the engine and all accessories to receive 
power, letting the engine run through the alternator to recharge 
the battery. When transporting the boat by trailer or placing it in 
storage, one should place the switch in the “O” position. This will 
allow the battery to remain isolated from all circuits. 
Models
ProStar and NXT models rely 
on a single battery. 
Purpose
When properly operated, 
the battery allows the 
boat’s engine to crank over 
with immediacy, eciently 
supporting the various 
electrical loads onboard.