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 Unlock a Land Rover with Dead Battery or Broken Key Fob October 25, 2019 Replace LR3 Tail Light Bulbs November 19, 2019 How to Remove the Side Vent Grill on an LR3 October 25, 2019