Our industrial strength batteries are compatible with Tesla Model X. These are the same batteries your dealer uses, at a fraction of the cost! ELITE USA COMPANY Elite Batteries are distributed out of Miami and Jacksonville, Florida. INDUSTRIAL STRENGTH Elite Batteries are the same quality used by your car manufacturer. EASY TO INSTALL YOURSELF Read below for easy instructions on how to replace yourself. Elite Batteries are compatible with smart key fob ONLY for the Tesla X. Steps to replace your key fob battery: If your key fob has a mechanical key, slide the release button or latch to remove it. If no mechanical key, skip this step. Use a flathead screwdriver or coin to pry open the key fob at the seam. Lift out the old battery. Insert the new battery with the positive (+) side facing up. Snap the key fob halves back together. If you removed a mechanical key, reinsert it. Press the lock and unlock buttons to verify your key fob is working. Invest in Elite industrial-strength key fob battery replacements today!