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Charging House Battery from Alternators


I was on the hook this weekend and needless to say I was on my house battery with periodic generator use. The house battery was charging fine while using the generator in the morning and in the evening to boost things up.

The problem I am having is charging my house battery when I am underway. My alternators charge all my batteries when I am underway. I have a hi-amp breaker under my step that is connected to the alternators line to the house battery. When the house battery is low, like after a weekend out, it appears that the breaker trips, almost like it can handle the amps coming from the alternator to charge the house battery. If the house battery voltage is slightly low, this does not occur.

I don't believe it is the battery, as it is a 2 year old 4D AGM, that charges fine on shore/genny power.

I am not sure what the issue is. Maybe a faulty hi-amp breaker?

Does anyone have an idea on what I could do to trouble shoot this issue.

Greg

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