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Changing the Battery in Your BMW Car Key Fob Many BMWs require a key fob that has an elegant, slant-shaped, sleek battery. This kind of battery is often readily found at hardware stores, or even big-box stores. The battery can be replaced in the comfort of your own home. Tulley BMW Nashua can guide you through the process so you can get back on Johns Creek roads quickly. How do you replace a battery Many BMW owners aren't aware that they might have to replace the keyfob's battery at some moment. Fortunately, this is among the most simple DIY car maintenance tasks that you can tackle yourself. It should take you no more than just a few minutes to replace the battery and the cost for the replacement is very low. You can find the battery at a variety of local convenience stores as well as parts centers for less than ten dollars. In most cases the BMW key fob uses the CR2032 battery, which is also commonly known as a “watch battery.” Remove the key fob cover, and then carefully insert the new battery gently. Be sure to pay attention to the orientation of the new battery, because it must be placed with the plus and minus indicators in the same direction like the old one. Once the battery is installed, you can replace the key fob and drive your BMW again. Some older BMW models come with a different key type, which is a metal key that you insert into the ignition. The batteries that are in these keys can also die over time, and you will need to replace them in order to start your car. This type of rechargeable battery requires you to cut off a tiny piece of the key fob in order to replace it. new bmw key of BMW key has an additional procedure, but it's nevertheless very simple. You'll first have to remove the key fob made of metal and then open the port on the side of the key. After you've opened up the access port and then, use a screwdriver that is flat to separate both halves of the fob. After the two halves have been separated, you can easily remove the battery that died and replace the new one. After you've changed the battery, simply snap the two halves of the key fob together again. Contact us today if you need assistance or have concerns about replacing the battery in your BMW Key Fob. Our team is always available to assist. We are eager to assist you with all your automotive requirements! CR2450 Battery It's not obvious however, your BMW key fob uses an exclusive battery to function correctly. The CR2450 battery is a three-volt lithium coin cell battery that helps provide power to the numerous functions of your key fob, including remote locking and unlocking, Comfort Access functionality, and even remotely starting your vehicle! These functions require additional power provided by a CR2450 battery that is a bit larger in diameter than its CR2032 counterpart. They are available in any store that sells regular lithium batteries of 3 volts, such as gas stations and supermarkets. They typically cost around $7 to $9 for a set of four batteries. However, careful price comparison shopping may reveal cheaper options from lesser-known brands. It's simple to change the battery in your BMW keyfob. It's not necessary to reset or re-synchronize your car. Simply remove the valet key from the fob, push the small tab that's in the opening, and pull out the battery. The new battery should be placed in exactly the same way, making sure that the positive side is facing upwards. Reassemble the fob. It is important to test your BMW keyfob after replacing its battery to ensure that it is working as you expect it to. This includes locking and unlocking the vehicle, as well as all other functions. For instance, you could test pressing the buttons on the fob to make sure they turn on, lock or unlock the trunk. Once you're sure that everything is working as you expected you can put the fob on and go! The key fob has an electronic chip that stores security codes and programming required to connect with your BMW. The battery in the key fob powers this information, however the chip will keep it even after you remove the battery. This is one of the reasons it's crucial to replace the battery as soon as it begins to get worn out. BMW key fobs are powered by sleek CR2032 batteries. This battery is common in electronic devices and is easily replaced if needed. A larger CR2450 is needed for models that use the remote start or Comfort Access features. This is a much more powerful battery that's specially designed for high-drain applications and can be purchased from a variety of retailers. These batteries can last for up to 10 Years when stored properly. They have a nominal power of 600-620mAh. They are a great choice for any high-drain task where you want to maximize the longevity and performance. Choose a reputable replacement battery to get the best results. This will ensure your new battery is of high-quality, and will withstand daily use. CR2032 Battery A CR2032 Battery is an extremely popular type of coin cell battery used in many electronic devices including remote controls, key fobs and medical and fitness trackers. This kind of battery is also used in heart rate monitors manufactured by companies such as Polar, Garmin, and Wahoo Fitness. It is also used in bike parts such as road shifters made by SRAM and FSA as well as in a few headlights. As the name implies, a CR2032 battery is made up of lithium chemistry and is round in shape with a diameter of 20 millimeters and a height of 32 millimeters. It has a low self-discharge rate, so it can be left in storage without losing a lot of charge. This low self-discharge and the capacity to keep a charge even in extreme temperatures make this an extremely popular battery for use in electronic devices. Battery life depends on a variety of variables such as the quality of the material, storage conditions such as storage time, physical damage, humidity and temperature. It is recommended to store the battery in a climate controlled and dry space that has no physical damage or degrading. It is crucial to purchase only the highest quality batteries from trusted retailers since lower quality batteries may have lower mAh capacities and may be prematurely depleted. Major battery manufacturers sell lithium coin cells, and they are also available in a majority of large retail stores. Some of the most well-known include Energizer, Panasonic and Duracell. These brands are renowned for their commitment to the highest standards of safety and reliability. If you are not sure about the authenticity of the battery or its packaging it is recommended to contact the manufacturer for more details. One of the most important aspects to keep in mind when using a CR2032 battery is that it has both a positive and negative terminal. The positive terminal of a CR2032 battery marked by a dot at the top, while the negative terminal is marked by a line on the base. If the battery is placed into a device with the wrong side facing forward it could cause damage to the device or even cause an explosion. Unlike some types of batteries, there's no socket or plug to connect to it. A CR2032 connects to a device through the metal tab. This tab must be pulled down to connect the battery, and can only be done so by hand. If you're installing a CR2032 battery into a device such as smoke detectors or sensors ensure that the tab contacts on the metal are in the right place. The device might not function or you could experience inconsistent results. Luckily, the instructions for most smoke detectors as well as sensors include diagrams that show the best way to place the battery. If you are unable to find an electrical diagram for the specific device it's a good idea to watch an instructional video that demonstrates how to install the battery.