Same on the H23 also
Sometimes a little knowledge cost you more money.I was in a boat building course over the winter and during one session, they talked about electrical systems, battery isolators, switches, bus bars, etc.So of course, the first thing I did when I got home was look at mine on the H23. (Note that I bought this boat last year and didn't check this out ahead of time. Oops.)No battery switch, no isolator, no busbar, positive from battery wired directly to one of the switches in the fuse panel (actually sharing the switch with the autohelm unit which would mean it was always on, right?)Got a new fuse panel (with 6 switches instead of 5). Put in a battery switch. Still no busbar or isolator but maybe that will be a job for next year. All in all, about another $50 into the hole I keep throwing boat money.