Hi just looking for some advise, my disco2 went into limp mode just as a 40 min motorway journey was coming to a end, I managed to get it home but when I tried to start it after parking up, the battery was flat there was a slight squeak that got louder more more I accelerated while I was in the motorway, my disco had a refurbished xyz a year ago it had a new battery 4 months ago and a new alternator fitted about 8 months ago, what would drain my battery after a 40 min drive and could my issue be down to a loose earth, iv also had water dripping from the rear sunroof switch the same week this happened maybe the water was messing with wires, any help would be appreciated thanks