Is the battery model for the Sylphy car key 2025 or 2032?
2 Answers
The battery model for replacing the Nissan Sylphy car key is CR2025. Method for replacing the key battery: Remove the mechanical key, use a flat-head screwdriver to pry open a small gap from the side seam of the key, open the key cover, use the flat-head screwdriver to remove the old battery, insert the new battery with the positive pole facing down, then reassemble the circuit board and key cover. CR2025 battery: Lithium manganese dioxide battery, named according to the IEC standard. C- indicates the chemical battery system with lithium metal as the negative electrode and manganese dioxide as the positive electrode, R- indicates the battery shape is cylindrical (if square, F is used instead), 20 indicates the battery diameter is 20mm, 25 indicates the battery thickness is 2.5mm, the nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity varies between 140-170mAh.
Last time I helped a colleague replace the battery for their Sylphy key fob, I specifically looked it up. Most Sylphy key fobs use the CR2025 model, especially for recent year models. However, some older Sylphys before the 2015 model year use CR2032, with the main difference being the battery thickness—the 2025 is slightly thinner. To confirm, it's simple: just use a coin to pry open the back cover of the key fob, take out the old battery, and check the number engraved on it. Replacing it yourself is super easy—just buy the same model battery, make sure not to install it backward (positive side up), and press it in. I recommend buying Panasonic or Sony brands for longer-lasting power. After replacing, remember to test if the remote control distance has been restored. If the model number is too faded to read after opening it, the safest bet is to take the old battery to the store and match the model directly.
