The Wharf Marina now carries Powertron Batteries. We carry 8D-deep cycle and marine starting batteries and have them in stock at the Dockstore.  If you need non-marine batteries for golf carts, lawn tractors, automotive and others we can have most types of batteries within two days. We also can provide you with Exide or Decca Batteries if you prefer those brands. The prices are based on having a 'trade in' of the same type of battery at the time of sale.