Jeremy - 3/8/2016 5:30 PM
btfish - 3/8/2016 5:16 PM
I agree 100% a three bank is the way to go if you can. However when I got my boat I placed the charger in the compartment for the 3rd battery in my Tuffy. The starting battery is in the back end of the boat and the cables would not reach. I am a very handy guy so I thought about cutting the cables and soldering extensions on. But then I checked with Minn Kota and they told me if I cut the cables the warranty on the charger would be void. (Really) But I said what the heck do it anyway, but then I priced what marine wire would cost and I was able to go to Fleer Farm and purchase a battery tender for less than the cost of the (wire, liquid tape, & heat shrink) So I accomplished what I needed to do.
I love this weather, :)
The manual that came with mine said the warranty was void if you cut it behind the strain relief, but you could extend up to 15ft without warranty issues.
To the O.P. -- hands down, get the 3 bank!