Tesla Key Fob Battery Replacement
Find the correct key fob battery size for your Tesla. Select your model and year to see the exact replacement battery, or use our step-by-step replacement guide.
How to replace a Tesla key fob battery
Most Tesla key fobs use a small 3V coin-cell battery (such as CR2032 or CR2025). Open the fob along the seam, swap the battery with the same size, and snap it closed. See our full how-to guide or browse your model below to confirm the exact size.
Tesla key fob battery sizes
These battery types are used in Tesla key fobs. Not sure which one fits yours? Select your model and year below, or use our battery size guide.
Tesla Models
Select your Tesla model and year to find the exact battery for your key fob.
Find Your Exact Battery
Use our vehicle selector to find the exact battery for your Tesla key fob.
