Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: What is the purpose of a dual battery switch?

Posted by gentilebrian on 05/21/15 - 7:32 AM
#4

If you always use one battery then you always have a spare full battery incase you run yours down like sitting with radio on. I always used 2 big deep cycles as they are generally big enough to start most outboards. every other trip I would switch which battery I used.