You plan to run parallel? If you want to run 6s there's only 3300 mAh. It's not enough capacity IMO. Also the ESC will heat up because the batteries are not capable of giving what the motor is demanding.
Best is to get 4S in the 5000mAh range and if l was setting up this 36'" boat. I will run two of these batteries with parallel wiring so l have 10,000 mAh.
Start with a not too aggressive prop and observe the temperature on the ESC.
Just my opinion...
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