What is the battery model for the 2019 Nissan X-Trail car key?
2 Answers
According to the manufacturer's manual, the battery models are CR2032 and CR2025. The naming follows the IEC standard. Specifically: 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 square, F is used instead); 20 Indicates the battery diameter is 20mm; 32 and 25 Represent the battery height of 3.2mm and 2.5mm respectively. The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity is approximately 200mAh. CR2032 typically has a lifespan of 5 years. If the manufacturer's production standards or quality control are poor, the lifespan may be significantly reduced. Domestic first-tier brands can generally guarantee this lifespan. Under ideal conditions (sealed, room temperature, no moisture, etc.), the lifespan can extend to 8 years or even 10 years. The usage time of a car remote key battery is closely related to the frequency of use—higher frequency leads to shorter lifespan. If the remote key battery dies, the mechanical key can still be used to unlock and start the vehicle. Car remote keys use button batteries, primarily three types: CR2016, CR2025, and CR2032. For the specific model used in each vehicle, owners can refer to the user manual for replacement. Button-type CR2016 battery: This is one of the most commonly used remote key batteries. The battery voltage is 3V, while most car key batteries operate at 9V, so all three batteries need replacement each time. Examples include Honda, Toyota, Volkswagen, and Mazda. CR2016 specifications: 20mm diameter, 1.6mm thickness. Button-type CR2025 battery: Its usage is much lower than CR2016, but some car keys still use it. It is thicker than CR2016 but has a higher storage capacity. CR2025 specifications: 20mm diameter, 2.5mm thickness. This type is also commonly used in audio remotes. Button-type CR2032 battery: Its thickness is double that of CR2016. The 3V-CR2032 lithium-manganese battery follows a lithium-manganese dioxide structure. The positive electrode material is chemically stable manganese dioxide, the negative electrode is lithium metal, and the electrolyte is a lithium battery solution (mainly composed of dimethoxyethane, propylene carbonate, and lithium perchlorate). Its shape resembles a button, hence the name lithium button battery or lithium-manganese button battery.
As the owner of a 2019 Nissan X-Trail, I found out from the manual that the key fob uses a CR2032 battery when it ran out of power. I remember one winter morning last year when the remote stopped working, and upon opening the key fob cover, I saw the battery had flattened. Replacing the battery is quite simple: use a coin or small knife to gently pry open the side cover, inside there's a button battery. When inserting the new CR2032, make sure the positive side faces up. After closing the cover, the remote functioned normally again. This battery type is used in many cars, like my friend's Toyota, so I often buy a few from the supermarket as spares—it doesn’t cost much. Typically, key fob batteries last one to two years, depending on usage. I try to minimize pressing the remote buttons, opting to manually press the door buttons to extend its lifespan. It’s advisable not to wait until the battery is completely dead before replacing it to avoid inconvenience during urgent use.
