I have recently purchased a new boat with a "Seaworthy" SW2000 Inverter/Charger. Apparently, BoatUS sold these units under their "Seaworthy" label. When I wrote to them, they said that the mfgr was out of business and nothing was available (i.e. books, parts, etc). I am in need of a manual (none with the boat). By any chance, does someone out there have a similar unit?