What is the battery model for the Buick Excelle key?
4 Answers
The battery model is CR2032. It is a lithium manganese dioxide battery, named according to the IEC standard. 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 is cylindrical in shape, with F used for square batteries; 20 indicates the battery diameter is 20mm; 32 represents 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. CR2032 typically has a lifespan of 5 years. If the manufacturer's production level is low or quality control is poor, its lifespan can be significantly shortened. Domestic first-tier brand batteries can generally guarantee this lifespan. Under ideal conditions (sealed, room temperature, no moisture, etc.), the lifespan can be further extended to 8 years or even 10 years. The usage time of a vehicle remote key battery is closely related to the frequency of use. The more frequently it is used, the shorter the lifespan will be. If the remote key battery is dead, the mechanical key can be used directly to unlock and start the vehicle. The batteries used in car remote keys are button batteries, mainly including models: CR2016, CR2025, CR2032, CR2450, and CR1616. For the specific model used in each key, owners can refer to the battery model in 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, and most car key batteries are powered by 9V, so three batteries need to be replaced each time. Examples include Guangben, Toyota, Volkswagen, Mazda, etc. CR2016 specifications: battery diameter is 20mm, thickness is 1.6mm. Button-type CR2025 battery: Its usage rate is much lower than CR2016, but it is still used in some car keys. It is thicker than CR2016 but has a relatively higher storage capacity. CR2025 specifications: battery diameter is 20mm, thickness is 2.5mm. This type of battery is also commonly used in audio remotes. Button battery CR2032: Its thickness is twice that of CR2016. The 3V-CR2032 lithium manganese battery belongs to the lithium-manganese dioxide structure. The positive electrode material is chemically stable manganese dioxide, the negative electrode material is lithium metal, and the electrolyte is a lithium battery electrolyte. The main components of the electrolyte are dimethoxyethane, propylene carbonate, and lithium perchlorate. It is shaped like a button, hence the name button lithium battery or lithium manganese button battery. Button battery CR2450: Compared to the other three models, it is thicker and larger, with a diameter of 24.5mm and a height of 5.0mm. The rated current value for CR2450 is 0.2mA, mainly used in low-power electronic products. Generally, the battery can provide an output current of 0.001mA to 5mA, with a continuous output current of up to 15mA and a flash output current of up to 30mA, meeting the requirements for light emission, sound production, and RF output in most small electronic products. Button battery CR1616: CR1616 has a diameter of 16mm and a height of 1.6mm. The nominal voltage is 3.0V, and the termination voltage is 2.0V. Generally, the manufacturer's output current is greater than 100mA, with a rated capacity of 50mAh. The operating temperature range is -20°C to 60°C, but in practice, it can only be used between 5°C and 60°C. It cannot be used below 5°C.
The battery model for the Buick Excelle key is typically CR2032, a common coin cell battery that is inexpensive and easy to find, available at supermarkets or auto parts stores. I often replace it myself—the steps are quite simple: gently pry open the key casing with a small screwdriver, remove the old battery (pay attention to the polarity), insert the new battery, and close the casing. If the key suddenly stops working, don’t rush to a repair shop—try replacing the battery first to save money and time. Battery life usually lasts one to two years, depending on usage frequency; I recommend checking it periodically, such as replacing it every 18 months, to avoid emergencies. Be careful when replacing it yourself—don’t apply too much force and damage the casing. The tools needed are basic—a flathead screwdriver from home will do the job.
As a Buick Excelle owner, I once encountered an unresponsive key fob issue in a parking lot, which was quite frustrating. It turned out to be a drained CR2032 battery. After replacing it myself, everything worked fine again. Now I've developed a habit of checking the battery annually. These batteries are readily available in supermarkets for around 10 yuan, which is very affordable. If you're uncomfortable doing it yourself, you can seek help from an auto repair shop, though it will cost extra. I make sure to keep my key fob in a dry place, avoiding high temperatures or moisture to extend battery life. If you use your car frequently, I recommend carrying a spare battery just in case. Remember the model number when purchasing to avoid mistakes - the CR2032 has strong compatibility.
The Buick Excelle key commonly uses a CR2032 battery. If you notice the key remote is unresponsive or the signal is weak, first check if the battery is depleted. I've encountered this situation before, and replacing the battery promptly resolved the issue. The replacement process is straightforward: pry open the key, replace the battery, and snap the casing back together. The battery typically lasts one to two years, but extreme weather conditions can shorten its lifespan. I recommend keeping a spare CR2032 battery in your car. Neglecting this may lead to difficulties in unlocking the doors or starting the car. Regular replacement can prevent these inconveniences.
