Yup my Roadster has a problem - something to do with the dash module (radio is currently out so it's not that) either that or some really poor connections causing power losses.
If I remove the fuses for the dash module/s up it pops 100% I have a bluetooth Ctek battery monitor strapped across the battery.
I contacted Caerbont but received tumbleweed in reply......
Sad to see the Aero's suffering the same anomoly
So they actually really "All do that Sir!"
You should not have to keep a battery conditioner on a car ad-infinitum!
Biggest problem with my other cars kept out on the drive when I don't use them, is that the brakes rust!