Second question, when wiring my two batteries in series to run my trolling motor, do they need to be exact same batteries? Because right now they are both Die Hards but they are different sizes and amps. One is a few years old, and the other is brand new...both are deep cycle. I heard that running one old one and one new one will draw the new battery's life down quicker than normal. Is this true?
Also, when using this minn kota charging system (4 bank), will I run one cord to both batteries (treating them as one big 24v battery), or will I run two seperate cords, treating each battery seperately (12 v)?