I just purchased and had a 70 thrust minn kota edge put on my bass tracker. I had the boat set up for 24volt system. It worked good with good power and I have used it three times. I used it the last three days and it feels as though when I use it is running almost on the power setting of 1 when I have it on 5. Is it possible that it is running on one battery? also I have the fuse set up on it if this was blown it would not operate. I have a 2 bank charger 0n the boat, and I have my cranking battery and 2 deep cycle marine batteries. Do I need a 3 bank charger. Thank for anyone who may help me,