I just got two brand new optima yellow top deep cycle batteries for my motorguide 71 lb thrust trolling motor. I charged the batteries up and hooked all the wires like they're supposed to be and it is noticeable that there is a lack of power compared to my old blue tops. The old ones had to be replaced because of dead cells. They did have a larger capacity than the new yellow tops, but I didn't think that would cause my motor to lose thrust, I though it just wouldn't be able to run as long as before. Any suggestions?