The battery on my new-to-me 2004 R1200CLC is flat dead. The battery is not conveniently accessible, apparently being buried beneath the gas tank. The dealer says I can charge it by connecting a Battery Tender to a stud marked "+" on the starter casing and a corresponding "-" stud on the cylinder head, but that's not working. The dealer also suggested using the rearmost of the two frame-mounted sockets, but I'll need a BMW-specific connector to plug into that. Advice, commiseration, good-natured mocking all welcome.