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Correct battery for C6 RS6 V10

Posted: Thu Oct 09, 2025 11:57 am
by Limited100
Hi all,


My battery dropped from 100% to 10% in only 2 days.

I went for a 40 min drive and it got back to 80%, which suggest's it isn't the alternator but needs a new battery.

Which is the best to get?

I currently have this fitted: https://batterygroup.co.uk/batteries-by ... 092?c=1354

Perhaps there are better out there? Assuming if I get a different one then it'll need to be coded in.


Thanks

Re: Correct battery for C6 RS6 V10

Posted: Thu Oct 09, 2025 3:59 pm
by Jim Haseltine
All the quality brands are much the same. The battery function in the car needs to know there's a new battery so yes, it needs coding - but all that has to be done is to skip on the current code by one digit, there's no validation or anything like that.

Re: Correct battery for C6 RS6 V10

Posted: Thu Oct 09, 2025 7:55 pm
by Limited100
Jim Haseltine wrote:
Thu Oct 09, 2025 3:59 pm
All the quality brands are much the same. The battery function in the car needs to know there's a new battery so yes, it needs coding - but all that has to be done is to skip on the current code by one digit, there's no validation or anything like that.
Ok cheers Jim

Re: Correct battery for C6 RS6 V10

Posted: Sun Nov 02, 2025 11:06 am
by Limited100
After replacing the battery the fuel pump fuse blew. Thankfully my mechanic knew it was that and fixed right away, otherwise I'd have been left stranded!