Join Date: Aug 2006
Location: Arlington, VA
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I think it would be really helpful to us -- who are trying to be helpful to you -- if you would provide full details on your present setup and the type of sailing you are planning to do. At a minimum, it would be nice to know:
size of boat
size and type of engine
size and type of alternator
type of regulator for the alternator
typical use of boat
any exceptional equipment aboard which draws substantial current
other charging means (solar? wind? generator? etc.)
There are a couple of things to note about the DLS90, and about Iota's in general. They are EXCELLENT chargers; I have two myself, and recommend them widely. However, they are not specifically approved for use on gasoline powered vessels or those with flammable gasses (like propane).
Iota's website notes that there are no components in their chargers which in normal use cause a spark. However, most any electronic device -- if it fails -- can cause sparks and excess heat. So, at the very least, you'll want to be sure that the charger is located outside of any compartment with flammable fumes.
Next, the DLS90 is a big guy. It's rated for 90amps full-time...about twice what many other chargers can put out. It also draws a lot of current. For example, you'd need to supply at least 20A to this charger, and it can draw much more than that on initial startup (one cycle inrush).
Six golf-cart batteries can provide some 675AH @ 12vdc total capacity. As others noted, this sounds like an awful lot for a 26' boat. Do you really have a 26' boat? Do you really need this much capacity?
Assuming you already have the batteries aboard, if we knew more about your setup and your cruising plans it would be easier to provide specific help.
Last edited by btrayfors; 01-12-2009 at 05:22 PM.