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Changing the Battery in Your BMW Car Key Fob Many BMWs require that the key fob has a sleek, slant-shaped battery. This type of battery is often readily available at hardware stores or even at big-box stores. Changing this battery is a straightforward process and can be completed at the comfort of your home. Tulley BMW Nashua can guide you through the procedure so you are back on Johns Creek roads quickly. How to Change a Battery Many BMW drivers don't realize that they could need to change the battery on their key fob at some point during ownership. This is among the easiest DIY tasks for car maintenance that you can complete yourself. The battery replacement should take only a few minutes and is a bargain. You can find the battery in a variety of local convenience stores and parts stores for less than ten dollars. In most instances, the BMW key fob has the CR2032 battery and is often known as a “watch battery.” Take off the cover of the key fob, and carefully place the new battery gently. Make sure you pay attention to the orientation of the new battery, because it must be placed with the plus and minus signs in the same direction as the old one. Once the new battery has been put in place, simply place the cover of the key fob back in place, and you'll be ready to drive your BMW around Decatur and Johns Creek again. Certain older BMW models have keys of a different kind that is an actual metal key that fits into the ignition. The batteries in these keys also degrade with time, so you will need to replace them in order to get your vehicle running. This type of battery can be recharged and replacing it involves cutting off a small piece of the key fob so be very careful when performing this task. This kind of BMW key requires an additional procedure, but it is nevertheless very simple. First, you'll have to remove the metal key from the fob, and then, you'll need to open the access port in the back of the key fob. Once you've opened the access port, use a flat-headed screwdriver to separate both halves of the fob. After the two halves have been separated, you can remove the battery that died and replace the new one. You can snap the two halves back together once you've replaced your battery. If you need assistance or have any other questions regarding how to change the battery on your BMW key fob, contact us today! Our team is always available to assist you. We look forward to assisting you with your car requirements. CR2450 Battery It's possible that you didn't realize that the BMW key fob requires a specific battery in order to function properly. The CR2450 is a lithium-ion 3 volt coin cell battery. It powers the key fob's many functions, such as remote locking unlocking, ComfortAccess, and even remote starting your vehicle! These functions require a CR2450 coin cell battery which is slightly larger than its CR2032 equivalent. bmw key are available at supermarkets and gas station as well as other retailers that sell 3-volt lithium batteries. These batteries typically cost $7 to $9 per four-pack, but a careful comparison of prices could reveal lower-cost alternatives from lesser-known brands. It's easy to replace the battery in your BMW keyfob. There is no need to reset or re-synchronize your car. Remove the valet key, remove the battery and press the button. The new battery should be placed in exactly the same manner and ensure that the positive side faces up. Reassemble the fob. It's crucial to test your BMW key fob after replacing its battery to ensure that it works as expected. This includes locking and unlocking the car, as well as all other functions. You can, for example press the buttons on the fob to make sure they lock, turn off or pop the trunk. Once you're sure that everything is functioning as is expected then put the fob in place and go! The key fob also houses a chip that holds the security codes and programs required to connect with your BMW. This information is powered by the battery in the key fob However, the chip is designed to retain this information even if the battery is removed. This is one of the reasons it's crucial to replace the battery quickly when it starts to wear out. BMW key fobs are powered by sleek CR2032 batteries. This battery is used in electronic devices and is easily replaced if needed. A larger CR2450 is required for models that utilize the Comfort Access or remote start features. This is a much more powerful battery that is specifically made for these applications and can be bought from a variety of stores. They can last up to 10 years when maintained properly. They come with a nominal capacity of 600-620mAh. These batteries are great for high-drain situations where you want to maximize the performance and endurance. For the best results, stick with a reputable brand for your replacement battery. This will ensure that your new battery is of the highest quality, and will withstand the demands of daily use. CR2032 Battery A CR2032 Battery is a common type of coin cell battery used in many electronic devices including remote controls, key fobs as well as fitness and medical trackers. This kind of battery is also used in heart rate monitors from companies like Polar, Garmin and Wahoo Fitness. It is also widely found in bike parts, including road shifters by SRAM and FSA and certain headlights. As the name implies, the CR2032 battery uses lithium chemistry and is round in form with a diameter of 20 millimeters and height of 32 millimeters. It has a low self-discharge meaning it can be left in storage without losing a lot of charge. This battery is a favorite for electronics because of its low self-discharge as well as the ability to maintain an energy level even in extreme temperatures. Battery life is contingent on a variety of elements, including the material storage conditions, the amount of duration of storage the battery, humidity, physical damage, and temperature. The ideal storage location is a climate-controlled, dry space with no physical damage. It is important to buy only the best quality batteries from reliable retailers because less expensive batteries might have lower mAh capacities and may be prematurely depleted. The majority of major battery manufacturers offer lithium coin cells. They are also sold in many large retail stores. Some of the most sought-after brands include Energizer, Panasonic and Duracell. These brands are known for adhering to the highest standards of safety and reliability. If you are uncertain about the authenticity of the battery or its packaging, it is recommended to contact the manufacturer for more information. One of the most important points to remember when using a CR2032 battery is that it has both a positive and negative terminal. The positive terminal is indicated by a dot on the top of the battery while the negative terminal is identified by a line across the base. If the battery is inserted into a device with the wrong side facing forward, it could damage the device, or even create a fire hazard. There isn't a socket or plug to connect the battery CR2032. Instead a CR2032 battery is connected to the device through a metal tab. The tab must be squeezed to connect the battery. This can only be done by hand. The installation of a CR2032 into a device such as a smoke detector or sensor requires that the tab contacts on the metal be in the proper position. The device might not work or give inconsistent results. The instructions for the majority of smoke detectors and smoke sensors include diagrams that show which way to place the batteries. If you are unable to find the wiring diagram for your specific device It's an excellent idea to look up an instructional video that demonstrates how to install the battery.