What is the battery model for the Passat car key?
1 Answers
The battery model for the Passat key is CR2032. CR2032 is a lithium manganese dioxide battery, named according to the IEC standard. The breakdown is as follows: C - Indicates a 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 it were square, F would be used instead. 20 - Indicates the battery diameter is 20mm. 32 - Represents the battery height of 3.2mm. The nominal voltage is 3.0V, with an endpoint voltage of 2.0V. The rated capacity varies between 200-240mAh depending on the manufacturer's quality. The shelf life of a CR2032 is typically 5 years. However, if the manufacturing standards or quality control are poor, the lifespan can be significantly shorter. Domestic top-tier brands generally guarantee this lifespan. Under ideal conditions (sealed, room temperature, no moisture, etc.), the lifespan can extend to 8 or even 10 years. Generally, replacing a car key battery involves just three steps: Step 1: Remove the mechanical key. Press the lock button on the side of the smart key to release the mechanical key. Step 2: Open the battery cover. After removing the mechanical key, you'll notice a deep groove and a shallow groove at the top of the smart key. The deep groove is for the keyhole, while the shallow groove is used to open the battery cover. Insert the mechanical key into the shallow groove and pry it open to reveal the coin battery. Gently remove the old battery. Step 3: Replace the battery. Insert the new battery, reattach the battery cover, and reinsert the mechanical key to complete the replacement.
