What is the battery model for the Mercedes GLE320 car key?

[VanGenevieve]

The battery models are CR2032 and CR2025-3V. These are lithium manganese dioxide batteries, named according to the IEC standard. The naming convention 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 that the battery is cylindrical in shape; if it were square, it would be denoted by F; 20 indicates the battery diameter is 20mm; 32 represents a battery height of 3.2mm; 25 represents a battery height of 2.5mm; The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity is approximately 200mAh. CR2032 batteries typically have a lifespan of 5 years. If the manufacturer's production standards are low or quality control is poor, the 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 extended further to 8 or even 10 years. The usage time of a car remote key battery is closely related to the frequency of use. The more frequently it is used, the shorter the battery life. If the remote key battery is dead, the mechanical key can be used directly to open and start the vehicle. Car remote keys use button batteries, primarily models such as CR2016, CR2025, CR2032, and CR2450. The specific model for each key can be found in the user manual for replacement. Button-type CR2016 battery: This is one of the most commonly used car remote batteries. The battery voltage is 3V, while most car key batteries operate at 9V, so all three batteries need to be replaced each time. Examples include models from Honda, 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 the 2016 model 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-type CR2032 battery: Its thickness is twice that of CR2016. The 3V-CR2032 lithium-manganese battery has 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 electrolyte. The main components of the electrolyte are ethylene glycol dimethyl ether, propylene carbonate, and lithium perchlorate. Its shape resembles a button, hence the name button lithium battery or lithium-manganese button battery. Button-type CR2450 battery: 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 for CR2450 is 0.2mA, mainly used in low-power electronic products. Generally, these batteries can provide an output current ranging from 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.

[BraxtonRose]

My GLE320 key gave me a headache when the battery died, until I discovered it originally used a CR2025 coin cell. At the supermarket, I specifically compared CR2025 with CR2032 - they have similar diameters but differ by 0.7mm in thickness. Using the wrong type would cause poor contact. Be careful when prying open the key fob: use a coin to pop off the metal back cover to access the battery compartment, and remember to wear gloves to avoid leaving fingerprints. After replacement, I noticed the remote's range improved significantly - the old battery had lasted over three years. Now I keep two Panasonic CR2025 spares in my car, especially since batteries drain faster during rainy seasons.

[SanValerie]

Last month, I just replaced the battery for my Mercedes key, the model is CR2025. When buying it at the auto parts market, be careful not to get counterfeit products, as inferior batteries can't last more than three months. Opening the key is quite simple: pull out the mechanical key and use your fingernail to pry open the shell along the gap. The battery slot is marked with positive and negative symbols, make sure not to install it backwards. I tried using a CR2032 as a substitute, but the buttons worked intermittently. It's recommended to choose original batteries from Sony or Panasonic, as it's more reliable to trust big brands for such electronic components.

[McAthena]

As someone who often helps friends with car keys, the CR2025 battery used in the GLE320 is actually quite common. The same type of battery is also used in watches and calculators, and can be purchased at convenience stores. When replacing the battery, gently pry it out by pressing the edge with a toothpick, and avoid touching the metal contacts on the circuit board throughout the process. Once, a client used a Nanfu battery and the remote stopped working—it turned out to be due to unstable voltage. The manufacturer recommends a CR2025 with a stable 3V voltage, as off-brand batteries often have too much voltage fluctuation. Nowadays, I directly recommend the Maxell batteries from JD.com's self-operated store—they offer good value for money.