Inboard to charge trolling motor batt?

[berke99]

I have an inboard 3.0. What would I have to do to set it up so that I could charge my elect. trolling motor batt. while running my big motor? Thanks!

[18 inch Crappie]

You will neeed to get a Isolator, it will charge both batterys but will only let you drain the trolling battery with out touching the starting battery. they use thes a lot for campers.