[C38] Alternators

Craig Navion at Charter.net
Wed Sep 14 18:41:22 EDT 2011


Larry, I have an 80 amp alternator with 4 - 130 ah batteries + a starting battery and have no problems.Did you need to modify the battery compartment and the space under the dinette to hold the 8D’s

Craig
WIngs C-38   #280

From: Michael Cameron 
Sent: Wednesday, September 14, 2011 5:12 PM
To: Larrypi at roadrunner.com ; Catalina 38 Listserve 
Subject: Re: [C38] Alternators

Larry,

We have 2 8D AGM batteries in our boat plus a AGM start battery.  We do fine with a 100 amp Balmar and smart regulator . That is approximately 500 amp hours of batteries to charge, similar to your requirements.   We have cruised for 9 days at a time with no shore power and never been more than 125 amp hours down on the battery bank.  150 amp alternator is going to require double half inch belts or a wide single belt, which will mean new pulleys.  If I had an alternator that big I would want a by pass switch so that when I needed all my horsepower I could cut the alternator load out of the picture.

michael





--------------------------------------------------------------------------------
From: Larry Malmberg <Larrypi at roadrunner.com>
To: Catalina 38 Listserve <listserve at catalina38.org>
Sent: Wed, September 14, 2011 2:41:09 PM
Subject: [C38] Alternators

OK, time for a new discussion here.  I have heard, read and been led to
believe that there is little difference between Balmar, others and
traditional alternators and voltage regulators.  I have been looking around
the net at alternators, external regulated, voltage regulators and such and
the more I look the more confused I get.  Tom T. are you out there???  My
Marine Electrician tells me I need a 150 amp alternator due to my batteries,
four 110 amp AGM's for house and one small start battery.  I currently have
a 90 amp alternator and a Balmar programmable voltage regulator.  Am I off
in the wind here or???





Best regards,

Larry Malmberg
Team Hassle


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