Pipedreams wrote:
The batteries are new alternator is new the shorepower works fine to charge, the problem is after a long weekend on the hook and i start the boat 1st batt. Will start the boat but wont run the trim 2nd batt. Works it fine when i switch to it. Batt. 1 never seems to come back till i get back to shore power
I'd suspect the charge splitter (a blue anodized ribbed thing with 3 terminals on the engine compartment forward bulkhead, if it's in the same place as on my 278 Vista). You can easily check it with a multimeter; central terminal is from the alternator output, the other terminals go to the batteries, the output voltages at those terminals should be very close to the voltage at the central alternator terminal when the engine is running)