i was wondering which set-up would give e longer battery run time. a link would help or f any of u guys know for sure.   thx

It's my understanding that 24 volt system is better than a 12 volt system.

Yes two 12 volt batteries in series running a 24 volt motor will do much better than the same batteries in parallel on a 12 volt motor.

I upgraded my trolling motor from 42 to 67 pounds of thrust by going with a 24-volt system and not only do I have more than enough power I do not have to worry about losing battery strength during the day.

One of the best upgrades I have made to my Tracker.

Go with the 24-volt system if you can.  

You will not be disappointed.  

24 volt = more power + longer run time.

i would say a 24 volt is way better..i need the power cause the lake we fish gets windz, and its big

Do you have to have a 24 volt TM to make it work right?? I have a 41lb thrust TM and it is only rigged up 12 volt. Will I burn up my TM if I rig it 24 volt?? :-/