Heres is how i got my boat balanced without using any ballast.
Before i would need atleast 25lb's of lead shot if i was alone to get the boat to sit level.



Now i dont need any ballast. I didnt lose any weight doing this only gained weight placement.
I now use the same batteries for trolling motor as well as big motor.
They are the big 31 series optimas with the highest reserve capacity. I can fish all day long without any problems