If you go for AGM, you will probably need some other source of charging the batteries, as well. This depends, very much, on your way of using the motor. But if you motor for a limited time only and have no shore power, your batteries would hardly ever be fully charged and AGMs don’t like it one bit.
Marek From: Josh Muckley via CnC-List Sent: Thursday, August 14, 2014 10:23 AM To: C&C List ; Joel Aronson Subject: Re: Stus-List Alternator for Yanmar 3GM30 Careful getting a new alternator with internal regulator if you are planning to get AGM batteries. The AGMs need slightly different charge profiles to ensure maximum longevity. The charge profile of the internal regulator won't be able to be changed. Also the internal reg won't be able to be programmed to limit the current. So more amps might not be a good thing depending on your AHr capacity. 25% for wet, 30% for gel, 40% for AGM. You would need at least 400AHrs of battery capacity to match a 100 amp alternator. Josh On Aug 14, 2014 9:50 AM, "Joel Aronson via CnC-List" <[email protected]> wrote: All, My alternator is putting out too much voltage (15 volts) It s a 35 amp Apco with an internal regulator. Rather than trying to have it rebuilt I am thinking of buying a new alternator. Is there a higher amp alternator that will fit the single pulley without breaking the bank? I don't want to spend $700 for a Balmar. I have 2 house batteries and 1 start battery. All are currently wet cell, but the next time around they will probably be AGM. -- Joel 301 541 8551 _______________________________________________ This List is provided by the C&C Photo Album Email address: [email protected] To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -------------------------------------------------------------------------------- _______________________________________________ This List is provided by the C&C Photo Album Email address: [email protected] To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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