Cranking battery just so happened to die on me the first day I got some new electronics. Made me worried that the electronics were too much for the battery...but it turned out it was a bad battery. Went out a couple times since and no issues.
bought a portable jump starter from wamart. Thing was like $70, which isnt much for piece of mind. but im questioning if ill ever really need it. I used the TM to get back to the ramp and my TM set up is completely separate from everything else. Havent looked into it much, but I told a buddy what happened and he told me I couldve used one of my trolling motor batteries to jump start the cranking battery. Anyone ever do that? Figure that makes the portable jumper more of a luxury than a necessity. what do you all think?