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 Land Rover Hitch Receiver Removal and Install October 25, 2019 Replacing LR3 Spark Plugs with Tool List and Torque Specs October 23, 2019 Fix LR3 Oil Cooler Adapter Oil Leak October 25, 2019