Tom H. wrote:

I run two batteries in my tow vehicle (a Ford conversion van) in whichI have
an isolator to charge both batteries. One of the batteries is the starting
battery and the second battery is a deep cycle used for all the conversion
electronics, etc. (both batteries are Optima AGM batteries). I haveyet to do

Tom,
What is this "Optima AGM" battery?

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<<lower SE Michigan, USA>>
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