Land Rover Battery Key Replacement / Range Rover Key Battery Post category:Discovery Sport / Land Rover / LR3 / DIscovery 3 This video shows how to replace the battery in a Land Rover Key Fob. Replacing the battery requires no tools and can be done in under a minute. The battery is model 2032 and is very common. you do not need any tools to change the key battery. You Might Also Like LR3 Front Brake Replacement Costs, Tool List and Torque Specs December 11, 2019 Unlock a Land Rover with Dead Battery or Broken Key Fob October 25, 2019 LR3 Tailgate Strut Replacement December 17, 2019