Hi Peety,
Good for you. The Progressive Dynamics [url]http://www.progressivedyn.com/pd4600_converter_replacement.html[/ul]
is a very good convertor and battery charger. I also upgraded mine but different model PD9260C when the American Enterprizes one I had fans drove me nuts.
You and your batteries will be happier campers now.
John
Got and pics of the install? We are a curious bunch
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2004 Sunline T310SR
2005 Ford F350 Lariat, V10 with 4.10
CC, Short Bed. Integrated Brake Controller
Reese HP trunnion bar hitch with HP DC