Pedroc402

My 2011 Superb 2 seems to have an excessive drain on the battery. The battery is a direct replacement for the original I think and is just 2 years old bought from and fitted by Halfords. in the past year it has had to be charged up overnight on a number of occasions to avoid the dreaded rapid clicking and no starting. Halfords have checked the battery with their little tester and it says its ok but needs charging and they will not replace it under the 3 year warranty if their machine says NO. They also say that there could be something drawing current whilst parked up and hence the problem. I would have thought the there must be some current being drawn as the alarm and locking and unlocking circuits and whatever magical stuff to keep the car alive must be active all the time. Does anyone know what is a normal current drain assuming that the car is not running and all doors are closed and all lights are off?