Optima Batteries - Yellow or Blue
My deep cycle 6V batteries have served me well for over eight years but it appears it's time for a replacement. I would like to get them off of the hitch and use sealed batteries somewhere inside t...
Forum Discussion
The Optima yellow has a .035" spiral would plate. The same thickness as a Pep Boys automobile battery. Out of 16 or so calls for battery help on cruising sailboats ninety percent involved group 31 Optima batteries. A Lifeline has a .105" plate. The Optima is made near Monterrey Mexico so is it widely available. Hope this helps.
