I am purchasing a bow mount trolling motor for my 16' tri-hull boat. I am considering the following two trolling motors:<br /><br />Motorguide Energy EF54V: 24V, 54lbs, 42"<br />Motorguide Tracker Pro 40: 12V, 43lbs, 36"<br /><br />The Tracker Pro is about $100 cheaper, but the EF54V is much more powerful. I am conserned about the voltage... 12V vs. 24V. Which is better? I know I will need another battery if I decide to get the 24V. Will it last longer? I've seen the EF54V also listed as 12V, which one would you get?<br /><br />Thanks