Re: 1988 366b
My 1988 Javelin 366FS did not have any form of drain around the batteries. I just drilled a 3/8" hole through the gusset on the aft side of the area the battery sits on and it just drains down into the bilge. The only time I ever get water in that area is if I wash it down or if I drain the storage lockers into the hull rather than bail them out.