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Old 06-19-2016, 05:06 AM   #3
Bay Pelican
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City: Chicago, IL
Country: USA
Vessel Name: Bay Pelican
Vessel Model: Krogen 42
Join Date: Oct 2007
Posts: 2,994
Common setup to have the genset battery charged only by the genset alternator. The genset could have been started by the use of jumper cables and many boats have hardwired a connection between the main battery bank and the genset for this purpose.

If your genset battery is your sole isolated battery (the rest being house bank / engine starter combination) then it would be prudent to replace the genset battery before it dies on some sort of maintenance schedule. I toss my isolated battery every five years. It is the cheapest battery on the boat.

Concerned that your boat is tripping the shore power breaker. This narrows your options too much. You need to investigate and solve this problem.
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