We (my wife said by itI get to toe it for her because I am the good husband) have a 99 175 Johnson FICHT on a 99 Lund Tyee. The boat has two trolling batteries setup on an on-board charging system. The two trolling batteries are for the trolling motor only. The cranking battery supplies the motor, bilge pump, two depth finders, and gps, stereo and other items
. First question: Can I place a charger on the cranking battery with out disconnecting it? If I do need to disconnect the cranking battery will this affect the electronics on the motor? The all three batteries are over four years old
might be time for new??? Should I purchase a deep cycle for the cranking
if I do will the outboard motor be capable of properly charging the battery? So many questions so little time to fish. We just bought the boat and have not splashed it yet.