My dad took out my trolling motor batteries to charge them for me. Not sure why he felt the need to take them out to charge them, but he did. Well I got my boat home and went to hook them back up, but since I didn't unhook them, i wasn't sure which wires went to which battery. All I could do was trial and error. There are 2 blacks and 2 reds. I hooked one red to battery 1 and one black to battery 1. It sparked and smoke came out of my twistlock plug up front by the trolling motor. The trolling motor has a on-off-on 12/24 switch. Now when I have it flipped to 24v it runs, but on 12v i get nothing. Any suggestions?