View Single Post
Old 07-13-2017, 01:34 PM   #3
djmarchand's Avatar
City: Litchfield, Ct/Punta Gorda, Fl
Country: USA
Vessel Model: Atlas Pompano 23
Join Date: Aug 2012
Posts: 4,884
I don't think you will have a problem. When the battery back is at 90% it isn't charging very fast with the alternator and I doubt if you are anywhere near the alternator's 125 amp rating.

But make sure that the temperature probe is working. It cuts the charging rate in half when the alternator case temp gets up to 200 deg F to protect the alternator from damage due to long term high output charging. If you let your battery bank drop to 50% then you could do some damage to the alternator without the temperature probe's cutting output.

And FWIW, the loads you described are not large in amp hour terms.

But why shut off your solar panel while cruising? 435 watts should bring your battery bank up from 90% to full in a few hours even with no alternator output. Both should do it even less.

djmarchand is offline   Reply With Quote