If Chance is upgrading to a 27 – would be a great idea to take it to a 31 and eliminate any issues. A group 24 is marginal at best for a starting battery, add in accessories its toast. With the size and sensitivity of todays units, it would be good to turn off sonar at the console when you stop the boat anyway. If youre moving beams around the boat with a turning trolling motor – youre inviting interference when the front transducer starts picking up cross-talk from rear transducer. Its an extra step – but as said, if sonar is turned off on the console, it will draw a lot less power. Guy in the back just wont be able to watch the rear unit.
