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Changing the Battery in Your BMW Car Key Fob Many BMWs require that the key fob has an elegant, slant-shaped battery. This type of battery is available at many hardware stores and even at big-box retailers. Changing this battery is a simple task and can be accomplished at the comfort of your own home. Tulley BMW Nashua can guide you through the process so you can be back on Johns Creek roads quickly. How to Replace a Battery Many BMW owners don't know that they could require a battery change in their key fob at some point in their ownership. It's a good thing, as this is one of the easiest car maintenance tasks that you can tackle yourself. It should take you no more than a few minutes to change the battery and the cost for the replacement is very low. The battery is available at local convenience stores and auto parts shops for less that ten dollars. The BMW key fob is usually powered by a CR2032 which is also referred to as a “watch” battery. Take off the cover of the key fob and then gently insert the new battery. Be sure to pay close attention to the orientation of the new battery since it has to be installed with the plus and minus indicators facing the same way as the old one. Once the battery is installed, you can replace the key fob and drive your BMW again. Some older BMW models have an alternative type of key that has a physical metal key that inserts into the ignition. The batteries that are in these keys will also degrade with time, so you will need to replace them to start your car. This type of rechargeable battery requires you to cut a small piece of the key fob to replace it. The process to change the battery in this kind of BMW key is a little different, however it's extremely simple. You'll first need to remove the metal fob key and then open the port on the side of the key. Once you've opened the access port then use a screwdriver with a flat head to split the two halves of the fob. Once the two halves are separated, you are able to remove the dead battery and insert the new one. After you've changed the battery, just snap the two halves of the key fob together again. Contact us now if you require assistance or have concerns about replacing the battery in your BMW Key Fob. Our team is always ready to help. We look forward to helping you with all your automotive needs! Battery CR2450 It's possible you didn't know, but the BMW key fob requires a specific battery in order to function properly. The CR2450 is a 3-volt lithium-ion coin cell battery. It powers the key fob's numerous functions, including remote locking and unlocking, ComfortAccess, and even remote starting your vehicle! These functions require the CR2450 coin cell battery which is slightly larger than its CR2032 equivalent. They are available in most places that sell regular lithium batteries of 3 volts, such as gas stations and supermarkets. They typically cost $7 to $9 per pack of four, but an accurate price comparison could reveal lower-cost alternatives from lesser-known brands. Changing the battery in your BMW key fob is an easy procedure that doesn't require additional reprogramming or resyncing with your vehicle. Simply remove the valet key from the fob, push a small tab in the opening, and then pull out the current battery. Place a brand new battery in the same manner, making sure that the positive side is facing up and then reassemble the fob. It's crucial to test your BMW keyfob after you've replaced its battery to ensure it functions as expected. This includes locking and unlocking the car and other functions. For instance, you can, press each button on the fob in order to verify that they lock, turn on or pop the trunk. If everything is working as you expect you can put the fob back together and get moving! The key fob has a chip which stores the security codes and programming required to connect with your BMW. The key fob battery powers this information, but the chip is able to keep it even after you have removed the battery. This is one of the reasons why it's crucial to replace the battery as soon as it begins to wear out. BMW key fobs run on sleek CR2032 batteries. The battery is commonly used in electronic devices and is easily replaced if needed. For models that make use of the remote start and comfort access features however, a larger battery CR2450 is required. This is a more powerful battery that is specifically designed for high-drain applications and is available from a variety of stores. These batteries have a nominal capacity of around 600-620 mAh and last up to 10 years when properly stored. They are a great option for any application where you want to maximize durability and performance. Make sure you choose a reliable replacement battery for the most efficient results. This will ensure your new battery will be high-quality, and will withstand everyday use. CR2032 Battery A CR2032 Battery is a popular type of coin cell battery used in a variety of electronic devices like key fobs, remote controls and medical and fitness trackers. This type of battery can also be found in heart rate monitors manufactured by companies such as Polar, Garmin, and Wahoo Fitness. It is also commonly utilized in bike components such as road shifters made by SRAM and FSA as well as in some headlights. The name suggests that the CR2032 battery is made up of lithium chemistry and is round in shape with 20 millimeters of diameter and height of 32 millimeters. It has a low self-discharge rate, meaning it can be left in storage without losing a lot of charge. bmw key is a favorite for electronics because of its low self-discharge rate and ability to hold an energy level even in extreme temperatures. The life of batteries is influenced by many factors, including the material, storage conditions, storage time the battery, humidity, physical damage, and temperature. It is recommended to store the battery in a climate controlled and dry area with no physical damage or degrading. It is important to only purchase the best quality batteries from reliable retailers. Batteries that are not of the highest quality may have lower mAh capacity and will eventually die. Most major battery manufacturers offer lithium coin cells, and they are also sold in many large retail stores. Some of the most popular include Energizer, Panasonic and Duracell. These brands are known for their dedication to the highest standards of security and reliability. If you have any doubts about the authenticity of a specific battery or its packaging, it's best to contact the manufacturer directly for additional details. One of the most important things to keep in mind when using a CR2032 battery is that it has two terminals: positive and negative. The positive terminal of a CR2032 batteries is marked with a dot at the top. The negative terminal is marked by a line on the base. If you insert the battery into a device the wrong way the device could get damaged or even an ignition risk. Unlike some types of batteries, there is no socket or plug to connect it. A CR2032 connects to a device via the metal tab. The tab needs to be press down to connect the battery. This can only be done so by hand. The installation of a CR2032 into a device such as a smoke detector or sensor requires that the tab contacts made of metal are in the correct position. The device may not work or you could experience inconsistent results. The instructions for most smoke detectors and smoke sensors include diagrams that explain how to place the batteries. If replacement bmw key are unable to find the wiring diagram for your specific device it's recommended to watch an instructional video on the proper way to install the battery.