New battery installed and already i can notice a difference in all the electrics, starter is quick to turn over, windows and mirrors all seem quicker and smoother if that makes sense. Only downside is that i sheared the bolt on the battery retaining bar that goes into the chassis but found a way round that so sits nice and securely. Fingers crossed this was a nice simple fix even if the unexpected 120 quid on a battery was not so timely but it could have been worse and after having my jag for nearly a year i couldnt be without my princess now so she costs what she costs!!