During the shrimp opener, I found I was having some minor electrical issues... namely my low voltage alarm would sound if I was running too many things at once - never had that before. No problems starting, battery was always charged in the morning when started, but gauge showed 12.8-13.6 while running and it dropped to as low as 9.8 a couple of times using the puller while the motor was running.
fast forward to this week, I finally got some time to look into it, batteries checked out OK with a shops load tester, and when I decide to swap all my anodes, I found light corrosion spots on the transom, and further investigation showed the entire hull has some. A neighbor who works for NOAA running boats came over and looked and confirmed what the internet search showed me... he thinks my hull is charged and at the very least grounded. I spent the day digging thru the battery compartment/bilge area, and nothing stood out. I'm not the best at electric stuff so if anyone has any pointers, or better yet some time in Anchorage, dinner/beer/Homer halibut spots are on me! Or, is there a shop that is recommended if I cannot find anything glaring? The transducer cable is good, bilge pump wires seem to be good, washdown pump as well... I'm off again on Wednesday and plan to check all connections, replace them with new heat shrink connectors after making sure the wires internally are not corroded, and just generally pulling my hair out trying to track it down. I don't want to miss too much shrimping time!