Second Battery vs. Jump Box

[spareparts]

Originally Posted by bradford

I run 2 Interstate Group 24 1000 cranking amp starting batteries on the 1 both 2 off switch.

This, but I prefer Deka

Unless you have a trolling motor or an invertor battery bank, there is no reason to have a deep cycle on a boat. Use a starting battery

[Cam]

I run dual batteries, one starting and one deep cycle, plus if I am going far, a booster pack. I also have Sea Tow. I ain't getting stuck!!!
Best scenario is two batteries as stated by many, or one battery with a tow service.