Cruise control? Were it me... I'd be planning to use the existing electronics for as long as I could stand it... augmented by a tablet app or...
If that reading was with the charger on... turn it off, let the batteries rest for maybe at least 4-6 hours, check voltage with the charger still...
If the parallel switch is always on, on when you checked port batteries... you may have been getting a reading from the combined banks instead of...
Batteries? If you find it safe to turn over... Check battery voltage? If you have a parallel switch, check with that too? Load test battery?...
FWIW... with practice, I've eventually gotten to the point where I can anticipate gear engagement, and I can (usually) even move the control out...
We had manually-controlled trolling valves on our previous boat with ZF gears. We trolled a lot at idle RPM and between 2.5-3 kts, no issues over...
Think I've lost track of what boat is which... But at least it sounds like good progress. -Chris
We use Aquamap Marine -- on Android devices, but they also do an iThing version -- as one of our several backups. We use this one specifically...
