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 LR3 CJB Removal and Sunroof Drain Repair October 25, 2019 Replace LR3 Windshield Cowling October 25, 2019 How to Replace Rear Seats LR3 / Discovery 3. October 25, 2019