What is the battery model for the Buick Excelle car key?

[DelBarrett]

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 shape of the battery is cylindrical, if it is square, F is used instead; 20 indicates that the diameter of the battery is 20mm; 32 represents the height of the battery is 3.2mm. The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity is about 200mAh. CR2032 usually has a lifespan of 5 years. If the manufacturer's production level is not high or quality control is poor, its lifespan will be greatly shortened. Domestic first-tier brand batteries can basically guarantee this lifespan. If the usage environment is ideal (sealed, room temperature, no moisture, etc.), its 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, you can directly use the mechanical key to open the vehicle and start it. The batteries used in car remote keys are button batteries, mainly including models: 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, almost one of the most common car remote batteries. The voltage of this battery is 3V, and general car key batteries are powered by 9V, so every time the battery is replaced, three batteries need to be replaced. Examples include: Guangben, 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, some car keys still use it. 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 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 very stable manganese dioxide, the negative electrode material is lithium metal, and the electrolyte is a lithium battery. The main components of the electrolyte are ethylene glycol dimethyl ether, 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 of CR2450 is 0.2mA, mainly used in low-power electronic products. Generally, the battery can provide an output current of 0.001mA to 5mA, a continuous output current of up to 15mA, and a flash output current of up to 30mA, meeting the requirements of most small electronic products for light emission, sound, and RF output.

[Mandy]

As a long-time Buick owner, I've changed the key battery three times already. The Buick Excelle key generally uses a CR2032 battery, which is a 3V coin cell. The other day, my car warned me about low key battery, so I just replaced it myself. It's actually quite easy—there's a small latch on the side of the key that you can pry open with a coin. Just remember to check the polarity before removing the old battery; installing it backward won't work. This type of battery is readily available in supermarkets or auto parts stores for about 10 yuan each. After replacing it, make sure to test the lock and unlock functions—don't wait until you're out to find out it wasn't done properly. If you find it troublesome, you can also get it replaced at a 4S shop, but they'll charge over 50 yuan for labor, which isn’t exactly cheap.

[Jessica]

I've owned the Excelle for over three years and have replaced the key battery myself. It uses a CR2032 battery, the universal type with a diameter of 20mm and thickness of 3.2mm. I remember one time when I drove to a gas station and suddenly found the key's sensor wasn't working, only then noticing the low battery warning on the dashboard. Later, I learned how to disassemble the key casing—you need to carefully pry open the metal slot. I recommend buying original batteries as they last longer. Doing it yourself is convenient and saves money; I bought five online for just twenty yuan. Just be careful not to lose the small spring inside—I almost lost a part once. Now, I always keep two spare batteries in the glove box for emergencies.

[BennettMarie]

When it comes to car key batteries, the Buick Excelle mostly uses the CR2032 model. In fact, these types of batteries generally have a capacity of around 220mAh and can last about two years under normal use. The main reason for choosing this model is its size compatibility with the key circuit board design. I've taken it apart and found the key's interior space is quite compact, and the CR2032 fits snugly into the battery slot. It supports a temperature range from -20 to 70 degrees Celsius, making it suitable for use anywhere in the country. Be cautious of low-quality batteries, as they tend to leak and corrode the contacts. A friend of mine once bought a cheap off-brand battery, and the key stopped working entirely. It's best to opt for reliable brands like Panasonic or Sony—spending a few extra bucks for peace of mind is worth it. The model number is engraved on the back of the battery, so just look for CR2032.

[OEmilio]

I have some tips for replacing Buick key batteries. The battery model for the Excelle key is CR2032, which is the same as the Nanfu CR2032 available in supermarkets. It's quite simple to do it yourself: first, use your thumb to slide open the metal piece on the back of the key, then use your fingernail to pry open the plastic cover. Before removing the old battery, remember that the positive side should face up when installing the new one. If there's no response after installation, the contacts might be loose—just gently adjust the spring plate with a small wooden stick. It's recommended to check the gaps in the key casing every six months, as aged seals can let rainwater seep in and damage the circuit. Nowadays, there are online kits that come with battery replacement tools, priced at just 8.9 yuan and include a pry tool, which is more cost-effective than buying separately. Don't forget to reset the key after replacement by holding the unlock button for ten seconds.