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Message: <blockquote data-quote="Still Afloat" data-source="post: 518915" data-attributes="member: 32426">The 36 will get you fishing.  However, a modern 45 to 55 or so with electronic speed control (ESC) will work better and run longer much longer. If you haven’t bought it yet, get ESC if it’s in your price range. The old school variable speed controls are cheaper but they dump power to a resistor when running the motor slower than 100%.  Running slow probably uses about the same amount of current as running fast.  This results in a faster battery discharge. ESC basically chops the current rapidly to obtain speed control.  This technique uses less current so the run time with the same battery capacity is longer.</blockquote>