Mike,
I just used the generator to crank the diesel and then stowed it to get underway again. But you're right if I stayed in the anchorage with the generator running until I saw my charge current fall off to a safe level then everything would have been fine. This was probably a dozen boat raft-up so when it's time to go, it's time. It's a twenty amp Charles Marine "bulk" charger so it only gets used to for jump starting. It's fine to bring a battery back from the brink but I have a portable smart charger that really takes care of conditioning the batteries. Phil Agur <http://www.catalina27.org/public_pages/profile270.htm> s/v Wing Tip C270 LE #184 MMSI 366901790 From: [email protected] [mailto:[email protected]] On Behalf Of mkeller23173 Sent: Tuesday, June 29, 2010 12:01 PM To: [email protected] Subject: [IC27A] Re: AGM Batteries Phil, I don't quite get that. If you're charging both batteries with the honda generator, then run home under power using both batteries, wouldn't that alleviate alternator issues? If the batteries are fully charged, then they wouldn't pull very much juice and overheat the alternator right? Also, what AC charger do you have installed? I have a feeling the Charles marine one that came factory is NOT a three stage charger and also does not have an AGM setting . . . Thanks, mike --- In [email protected] <mailto:IC27A%40yahoogroups.com> , "Phil Agur" <pja...@...> wrote: > > Your alternator can only stand to put out 50% its rated load for any > extended run time. Any time you are charging into a discharged deep cycle of > any type there is some risk to the alternator. > > > > On a long weekend, as long as I bring my Honda 1000i generator, I can treat > both batteries as house batteries since the Honda adapted to my shore power > inlet will jump start the diesel via the bulk shore power charger. > > > > However if you then motor back in and set the A-B switch to both your local > alternator rebuild shop will gladly school you on what not to do next time. > > > > Phil Agur > <http://www.catalina27.org/public_pages/profile270.htm> s/v Wing Tip > C270 LE #184 MMSI 366901790 > > > > > > From: [email protected] <mailto:IC27A%40yahoogroups.com> [mailto:[email protected] <mailto:IC27A%40yahoogroups.com> ] On Behalf Of > mkeller23173 > Sent: Tuesday, June 29, 2010 9:59 AM > To: [email protected] <mailto:IC27A%40yahoogroups.com> > Subject: [IC27A] Re: AGM Batteries > > > > > > Thanks gentlemen, > > Did any of you change your alternators when you made the switch to AGM? I've > read that AGMs can burn up alternators since they pull up to 75% of their > rated amp hours when charging. > > Mike >
