What is the battery model for the Teana key?
2 Answers
The battery model for the Teana 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, the endpoint voltage is 2.0V, and the rated capacity varies between 200-240mAh depending on the manufacturer. The shelf life of a CR2032 is typically 5 years. If the manufacturing standards or quality control are poor, the lifespan can be significantly shorter. Domestic first-tier brands can 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 latch on the side of the smart key to release the mechanical key. Step 2: Open the battery cover. After removing the mechanical key, you will see a deep slot and a shallow slot at the top of the smart key. The deep slot is for the keyhole, while the shallow slot is used to open the battery cover. Insert the mechanical key into the shallow slot 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 reassemble the mechanical key. The key battery replacement is now complete.
After driving the Teana for a long time, I encountered the issue of the key fob malfunctioning several times. Later, I found out it uses a CR2032 coin cell battery. You can gently pry open the key fob's casing with a tool to see the old battery—just be careful not to use too much force to avoid damaging the plastic parts. Remove the old battery, insert the new CR2032 with the positive side facing up, and snap the casing back together. These batteries are easy to find in supermarkets or online and cost just a few dollars. They typically last about one and a half to two years, depending on how often you use the remote. Keep an eye on whether the key signal weakens; if you notice slower response times when unlocking or no flashing lights, replace the battery promptly to avoid getting locked out of your car. It's a good habit to check your car key every six months—it saves you a trip to the repair shop. Don’t use other battery models when replacing; the CR2032’s size and voltage are just right, or you might damage the key fob's circuitry.
