I was away for 3 days so my 2009 LR2 sat in front of the house (Friday, Saturday, Sunday). I went to start the car late Sunday and it was black, absolutely nothing left. I then used the manual key, popped the hood and put a battery charger on it. An hour later the car started with no issues. Battery is 6 months old and all of the accessories (lights, radio, and ac) were off with the security system on. Does the security system draw this much on the system? Any other ideas on what might be drawing the battery down? Anybody have a similar issue? Help! Comments please!