[jcurtis934]

I seemed to remember another old charger going above 15vdc as the progressive dynamics docs say 14.4vdc every 21 hours to do the de-sulf thing. Sorry. But I did go to an interesting site that sells many brands of agm deep cycle batteries (batterystuff.com) like lifeline and trojan that caught my eye. The trojan verbage said no special chargers needed for their deep cycle agm's and to call if uncertain about your charger. Their price for trojan 12v 76ah was $217+...so $440 for two to get 150ah. And if you wanted to equal or exceed 2 trojan 6vdc 220ah for 12vc at roughly $350, then four of the agms would equal 300ah...but cost would be almost 900. That's what the cost difference is to go away from a good high ah wet to high amp agm without worry of new charger. John