On our first trip out, we had no electronics outside of our iPhones and a space where the disconnected house battery used to be.
Second trip, we were able to bring a portable 40Ah LifePO4 case, a 130w solar panel and cheap PWM controller to get the lights going.
Last trip, we put in a 100Ah LifePO4 house battery, a 40A DC-DC converter/MPPT solar controller and installed our first electronics: a HH icom VHF with DSC & AIS, a Starlink Mini mounted on a stern pole and an iPad Mini running a variety of navigation apps clamped to the binnacle.
So I've been shopping for an MFD to work with a depth transducer, ran into one of these on clearance, and things escalated quickly:

Looks like it should tell us if were gonna hit, or be hit by stuff.







