ok i found some 50 amp breakers for my trolling motor, now does anyone have any good mounting ideas?i need something temporary. i will be building a battery compartment next year.

Are they the regular 50 amp breakers made for this type application. If so, they will normally have a stud approx 1/4" dia on each end. If they are already setup up for a TM they will have an extra metal bracket on one end that will bolt to the stud on the battery and the TM cable will bolt onto the other. If they don't have that extra bracket, you will need to come up with a couple or do a little "fancy" engineering to make a couple from heavy brass or copper. Install one on each positive post of the batteries. For a 50 amp breaker, I would recommend you be running at least #6 battery/welding wire. Much less than that and you could start getting wire resistance, causing the wire to get warm and a drop in TM performance.   If you are running in series for a straight 24V you will only need one on the positive post of the battery the TM's cable hooks to.

Actaully, you can install them on the positive or negative post, makes no difference, but the common assumption and hookup method is they have to go on the positive.