Need information on selecting a trolling motor for the river. I was considering a Minn kota Maxxum 50 but was wondering if I should upgrade and get a 24 volt system with a 65 lb. thrust? I want a system that will run all day without running the battery out in a couple hours. Anybody have any experience with the 50 and how many hours I can expect to get out of it? I'll be using it on a 16 ft. Alumaweld Super Vee. Thanks for any info!!!