12volt trawling motors are useless. to weak to push anything else except a very light craft, ot the most can keep your boat still on a spot ( in windy contitions)
24 volt are stronger but they need volts and electricity.
check the watts of the motor.
lets say a motor is 500W ....... a 55 amp battery is 55 x 12 = 660. but you cannot burn more than 40% of the capacity of a lead battery. so at full
speed a 12volt motor will work about 40 minutes. If you empty the lead battery 4-5 times will die for ever. So you need deep cycle battery, to last and they cost a lot more. If the motor is 24 volt then is X times two!
The more complex electronic motor the more is likely to stop