LR3, Discovery 3 Battery Location Post category:Land Rover / LR3 / DIscovery 3 The location of the battery in a LR3 or Disco 3 is in the engine compartment. It is under a cover panel on the passenger side. The cover panel is held down by 3 clips, these clips a very brittle and break easily. You Might Also Like Replace LR3 Tail Light Bulbs November 19, 2019 Discovery Sport Cabin Air Filter Replacement & Location October 25, 2019 Install Clear Side Marker Lights for the LR3 & Range Rover Sport December 11, 2019