Thanks for the comments, everyone. I have fully charged the battery, I've also been on some longish runs, so it should be fully charged. The only drain I'm aware of is the immobilizer. I'll put an ammeter on it when I get chance. Could be a duff cell but it's only a few months old.
What's the longest anyone's left their 3.7 Roadster without any charger/conditioner on?
Ian
