i wasn't gonna bother postin about this but im so pissed off,...about a month ago me an the brother in law went to start the bikes [ both zx10r's ] batterys were flat so because he was in lisburn he got two new batteries from mc callens,which turned out to be faulty so mc callen changed them for two others, same thing happened both bikes stopped after about 20 minutes,he then said our rectifiers 'blew' the batteries ,after saying the first batteries he gave us were faulty and went on to say he sent the whole batch back to the suppliers,i then spoke to keith [ module ] ,cradley heath ,Colchester Kawasaki and Derek Young [ who builds engines for bsb teams ] ALL say a faulty battery will damage a rectifier,when I said this to mc callen his words were ...'their wrong' ,WTF, and were left to foot the bill for new rectifiers,........... make your own minds up