Hi,I'm looking to replace my 8yr old BMW battery and wondered if anyone out there is using one? The web is telling me that for my R1150GS I should be buying the PC680/ELA59016, I wondered if anyone can confirm this? And in case you think I'm throwing my money away :-o, Its cheaper for me to get it from the UK than to buy an OEM here (as a friend is doing some shipping).