I have a evinrude 24 volt trolling motor i have a 4 wire plug that the connections go to from the batteries. here is my question currently i have a red and orange wire to plug and 2 blacks on negative if i use a meter i get 12 volts on each red and orange. How do i get 24 volts to the motor. I did use a jumper betwen the pos and neg on the battery and can get 24 volts on red wire but why did they have both sets of wires hooked up.

i hope this makes sense.