I'm not so sure. Most internally regulated alternators seem to put out a somewhat constant voltage charge and it is possibly too high voltage for AGM (or Gel). AGM and Gel can't be gassed under any circumstances. I would need to know the charge voltage of the internal regulator before saying it is ok.
On my setup, I have Delco internally regulated alternators (94 amp) that I bypassed the internal regulator and wired in an external Balmar regulator. That way, I can get the alternator at any auto parts store and just change the internal wiring. I have not lost an alternator since the conversion whereas before I went through two alternators on the inverter bank due to overheating at low speed such as idling while retrieving anchor and then slowly moving out of anchorages. The partially discharged batteries are asking for all the alternator has and it isn't spinning fast enough to keep it cool. The slower speed also reduces the amperage of charge but it still heats up. I do not have AGM batteries but I do have a Balmar external regulator factory set for AGM as a spare. Paul -----Original Message----- From: Lew Hodgett Sent: Wednesday, April 27, 2011 5:42 PM To: [email protected] Subject: Re: [Liveaboard] AGM battery questoin <[email protected]> wrote: > Anyone know If I put in AGM batteries and an AGM battery charger, > will my > standard Perkins alternators be ok with AGM Batteries or would I > have to > change them also? ------------------------------------ As far as an alternator is concerned, a load is a load; however, the regulator is a different matter. If the regulator in integral with the alternator, you should be safe. If it is external, more info is needed. Lew _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://liveaboardonline.com/mailman/listinfo/liveaboard To subscribe send an email to [email protected] To unsubscribe send an email to [email protected] The archives are at http://www.liveaboardonline.com/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://liveaboardonline.com/mailman/listinfo/liveaboard To subscribe send an email to [email protected] To unsubscribe send an email to [email protected] The archives are at http://www.liveaboardonline.com/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
