What is the battery model for the Volkswagen Touareg remote key?

[LeAaliyah]

The battery model is CR2032. It is a lithium manganese dioxide battery, named according to IEC standards. Among them: C- indicates a chemical battery system with lithium metal as the negative electrode and manganese dioxide as the positive electrode; R- indicates that the battery shape is cylindrical, and if it is square, F is used instead; 20 indicates that the battery diameter is 20mm; 32 indicates that the battery height is 3.2mm. The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity is approximately 200mAh. The CR2032 typically has a lifespan of 5 years. If the manufacturer's production level is not high or quality control is poor, its lifespan will be significantly shortened. Domestic first-tier brand batteries can generally guarantee this lifespan. If the usage environment is ideal (sealed, room temperature, no moisture, etc.), the lifespan can be further extended to 8 years or even 10 years. The usage time of the vehicle remote key battery is closely related to the frequency of use. The more frequently it is used, the shorter the usage time will be. If the remote key battery runs out of power, the mechanical key can be used directly to open and start the vehicle. The batteries used in car remote keys are button batteries, mainly including models such as CR2016, CR2025, CR2032, and CR2450. For the specific model used in each key, the owner can refer to the battery model in the user manual for replacement. Button-type CR2016 battery: The usage rate of car key remotes is very high, making it one of the most common car remote batteries. The voltage of this battery is 3V, while most car key batteries are powered by 9V, so all three batteries need to be replaced each time. Examples include Honda, Toyota, Volkswagen, Mazda, etc. CR2016 specifications: battery diameter 20mm, thickness 1.6mm. Button-type CR2025 battery: Its usage rate is much lower than that of CR2016. However, it is still used in some car keys. It is thicker than the 2016 model but has a relatively higher storage capacity. CR2025 specifications: battery diameter 20mm, thickness 2.5mm. This type of battery is also commonly used in audio remotes. Button battery CR203

[DeAthena]

I've been repairing car parts for a long time. The Volkswagen Touareg's remote key usually uses a CR2032 coin cell battery, which is compact in size and has a voltage of 3 volts. This type of battery is easily available in supermarkets, hardware stores, or e-commerce platforms at an affordable price—just a couple of yuan will do the trick. When the key's battery is low, the signal weakens, and unlocking the door or starting the car becomes less responsive, which is a clear sign to replace the battery. Doing it yourself is simple: locate the slot on the back of the key, gently pry open the casing with a fingernail or a thin tool, remove the old battery, and insert a new CR2032, making sure the positive side faces up and isn't reversed. Then, snap the casing back on and test the functionality. It's recommended to check the battery once a year to avoid awkward emergency situations. The battery typically lasts two to three years on average—don't skimp on this and risk inconvenience.