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AGM or lead/acid

 
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bucephalus1950



Joined: 25 Sep 2007
Posts: 1
Location: Thailand

PostPosted: Tue Sep 25, 2007 10:52 pm    Post subject: AGM or lead/acid Reply with quote

I have lead/acid batteries on my sailboat (400 amp hours) and am wondering if AGM batteries are worth the money. I understand the convenience of AGM's and the more rapid recharge than lead/acid types but can I expect a longer life for AGM's? What other considerations are there?
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sailori38
Senior Member


Joined: 20 Jun 2006
Posts: 31
Location: Hansville

PostPosted: Wed Sep 26, 2007 10:32 am    Post subject: Choosing Batteries - Lead/acid vs AGM Reply with quote

The single best reference I know is this...well written, complete and not to wordy! You should get longer life from AGM's, regardless of your use.

http://www.vonwentzel.net/Battery/

I have gone from lead acid (late 80's) to Gels (early-mid 90's) to AGM's. There is a bit more to choosing AGM's than just getting the batteries - charging output, how you 'use' power and how you make it; all things being equal, AGM's are the way to go.

Go to the biggest 2 battery system you can get away with (I remember when I had 7 batteries; 2 starting, 5 house), better to just have two big batteries rather than 7 I had to monitor and manage.

Sailor Ingrid 38
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