I JUST HAD A QUICK QUESTION, I HAVE 2 BATTERIES THAT I WANT TO CONNECT TO MY TROLLING MOTOR. DO I CONNECT THEN IN PARALLEL OR SERIES FOR THEM TO DRAIN EVENLY.
Two batteries in series provides 24 volts (12 + 12). You don't want that. Two batteries in parallel provide 12 volts but double the capacity. That's what you want. I trust you understand the physical difference between series and parallel wiring.