I finally got around to “finishing” my DIY drysuit heated vest project. While I have been using a Thermalution heated vest for the past two seasons I wanted something with a little longer runtime that heated over a larger area. I also wanted the ability to isolate the battery in the event of failure. I really can’t take credit for this design as I pretty much copied the parts list from my friends Matt and Lea who designed their vests before me. I waited for them to be guinea pigs until…