I need a battery tender that will maintain 4 optima marine batteries, that are all linked together and then there are two lugs under the seat, to plug the charger onto. Has anybody had an expierence that will work with this application?

you have to be carefull as those batteries take charging differntly that std batteries....do some homework....Rob

Rob, you are right!!!! Battery tender is one of the best "long term" battery chargers. There are others, but many have features that you may not wish to have, "i.e. inverter". I sell the smaller versions of Battery Tenders, but not the larger ones. Do a search on net. Good luck.