Question for battery (GURU) What is a good dependable on board charger, maintainer ? but not to expensive i'am not cheap but i'am retired, for a 24 volt system i plan on using the trolling motor minn kota fortrex 80# that is installed on a 24' pontoon, for about 3 to 6 hours aday for about a week than on weekends after that, An i really don't won't to use a portable they do have there places , Thanks in advance PS I have not bought the batteries yet although they will be deep cycle.