I'm looking to get a battery for my first 12v 55lb thrust Minn Kota trolling motor and am hoping for recommendations. I know I need a marine/deep cycle, but am looking for specific recommendations. My main consideration is maximum run time on the water, and cost. This battery will be used to power only the trolling motor. So, what is the best single battery to power a 12v 55lb thrust minn kota???