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Changing the Battery in Your BMW Car Key Fob Many BMWs require that the key fob have a slant-shaped, sleek battery. This kind of battery is often readily found at hardware stores, or even at big-box stores. Change the battery is a straightforward process and can be accomplished in the comfort of your home. Tulley BMW of Nashua will walk you through this procedure, so that you can be back on the Johns Creek roads in no time. How do you change a battery Many BMW owners don't know that they may require a battery change in their key fobs at some point in their ownership. Fortunately, this is among the most simple DIY car maintenance tasks you can handle yourself. It will take no more than an hour to replace the battery and the cost for the replacement is minimal. The battery is available at local convenience stores and auto parts stores for less that ten dollars. The BMW key fob is typically powered by a CR2032 or a “watch” battery. Remove the key fob's cover and gently insert the new battery. Make sure to be attentive to the orientation of the new battery, as it must be installed with the plus and minus signs facing the same way like the old one. Once the new battery is installed, just put the cover of the key fob back in place and you'll be able to drive your BMW around Decatur and Johns Creek again. Some older BMW models come with a different key type, which is a metal key that you insert into the ignition. These keys can also die in time, and you will need to replace the battery in order for your vehicle to start. This type of battery can be recharged and replacing it involves cutting off a small piece of the key fob, so be careful when you are performing this task. This kind of BMW key requires a slightly different procedure, but it is still very simple. You'll first need 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, use a flat-headed screwdriver to cut the two halves off of the fob. Once the two halves are separated, you can easily remove the battery that died and replace the new one. After you've changed the battery, you can simply snap the two halves of the key fob again. If you need assistance or have any other questions regarding how to change the battery on your BMW key fob, please contact us now! Our team is always ready to assist. genuine bmw replacement key uk are looking forward to helping you with all your automotive requirements! Battery CR2450 It's possible you didn't even know, but the BMW key fob requires a special battery in order to function properly. The CR2450 is a lithium-ion 3 volt coin cell battery. It powers the key fob's various functions, including remote locking and unlocking, ComfortAccess and even remote start of your vehicle! These features 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 like gas stations and supermarkets. They usually cost between $7 and $9 for a pack of four, but a careful price comparison may provide lower-cost alternatives from lesser-known brands. The battery change in your BMW key fob is a simple process that doesn't require any additional programming or resyncing with your vehicle. Simply remove the valet key from the fob, then press an elongated tab inside the opening, and then pull out the battery. The new battery should be placed in exactly the same way, making sure that the positive side is facing towards the upward direction. Reassemble the fob. It's crucial to test your BMW key fob after replacing its battery to make sure it works as expected. This includes locking and unlocking the car, as well as other functions. For instance, you can test pressing the buttons on the fob to ensure they turn on, lock or open the trunk. After you're confident that everything is functioning as you expected, put the fob together and go! The key fob is equipped with an electronic chip that stores security codes and the programming needed to connect with your BMW. The battery in the key fob powers this information, however the chip will keep it even after you have removed the battery. This is why it's so important to replace the battery at the time it begins to wear out. BMW key fobs are powered by sleek CR2032 batteries. This battery is common in electronic devices and is easily replaced if needed. For models that use the Comfort Access and remote start features, however, a larger battery CR2450 is required. This is a more powerful battery that has been specifically designed for use in high-drain situations. It is available from a variety of stores. These batteries can last for up to 10 years if stored properly. They come with a nominal power of 600-620mAh. These batteries are ideal for high-drain applications where you want to maximize the performance and endurance. Choose a reputable replacement battery to get the best results. This will ensure that your new battery is of high-quality and will hold up to rigorous daily use. Battery CR2032 The CR2032 battery is a common coin cell that is used in a variety of electronic devices, such as key fobs and remote controls. It can also be found in medical and fitness trackers. This kind of battery can also be found in heart rate monitors made by companies such as Polar, Garmin, and Wahoo Fitness. It is also widely used in bike components like road shifters made by SRAM and FSA as well as in a few headlights. As the name implies, a CR2032 battery uses lithium chemistry and is round in shape with a diameter of 20 millimeters and height of 32 millimeters. It has a low self-discharge, so it can be left in dormancy for a long time, without losing much of its charge. This battery is popular for electronics because of its low self-discharge and ability to hold a charge even in extreme temperatures. The life of batteries can depend on a variety of variables such as the quality of the material, storage conditions such as storage time, humidity, physical damage and temperature. Ideal storage is in a climate-controlled, dry space without any physical damage. It is important to only purchase high-quality batteries from reliable retailers. Lower quality batteries can have lower capacity and will eventually die. The majority of major battery manufacturers sell lithium coin cells. 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 known to adhere to the most stringent safety and reliability standards. If you have any questions regarding the authenticity of a particular battery or its packaging, it's best to contact the manufacturer directly for more information. When using a CR2032 It is crucial to be aware that the battery has a positive terminal and the negative terminal. The positive terminal is identified by a dot on the top of the battery, and the negative terminal is identified by an arc across the base. If the battery is placed into a device with the wrong side facing forward, it could damage the device or create the risk of fire. There isn't a socket or plug to connect the battery CR2032. Instead the CR2032 battery is connected to the device via a metal tab. The tab needs to be pressed down to connect the battery, and can only be done by hand. If you're installing a CR2032 battery into a device such as a sensor or smoke detector, be sure that the metal tab contacts are in the proper location. The device might not work or you could experience inconsistent results. The instructions for the majority of smoke sensors and detectors include diagrams that show which way to insert the batteries. If you are unable to find an electrical diagram for the specific device It's recommended to watch a video that shows the proper way to install the battery.