Im considering adding a 2nd battery to the Crestliner.
Currently I have a 27 series start/crank batt. and it runs the sonar, VHF, FM, lights, bilge, downriggers, Sub Troll, two 12v cigg. plugs, ect... The alternator from my 30hp Johnson is the charge source.
I'll be adding an additional (and higher powered) sonar/gps to the grid this winter. How neccessary would a 2nd battery be in this situation?
I should also add that more often then not when most of the electronics are in use I am trolling.
If I do get a 2nd batt. I am considering wirring them in parallel.
If I dont get a 2nd batt. I am thinking of installing a solar powered charger.
Ideas? Suggestions?