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Changing the Battery in Your BMW Car Key Fob Many BMWs require a key fob with an elegant, slant-shaped, sleek battery. replacement keys for bmw of battery is usually found at hardware stores, or even big-box stores. Changing this battery is a simple task and can be completed in the comfort of your home. Tulley BMW of Nashua will guide you through the procedure, so that you can be back on the Johns Creek roads in no time. How to Change a Battery Many BMW drivers aren't aware that they could require a battery change in their key fob at some point during their ownership. Luckily, this is among the most simple DIY car maintenance tasks you can tackle yourself. The replacement of your battery will take just a few minutes and is also very affordable. The battery can be found in a variety of local convenience stores as well as parts centers for less than ten bucks. The BMW key fob is normally powered by a CR2032, also known as a “watch” battery. Remove the cover of the key fob and then gently place the new battery. Be aware of the orientation. The new battery must be placed in a way that the plus and minus symbols are facing the same direction as the previous battery. After the battery has been installed it is possible to replace the key fob and start driving your BMW again. Some older BMW models use an alternative type of key, which features a physical metal key that is inserted into the ignition. These keys can also die in time, and you will need to change the battery to allow your vehicle to start. The type of battery you have is rechargeable, and replacing it requires cutting off a small piece of the key fob so be careful when doing this. This kind of BMW key requires an additional procedure, but it's nevertheless very simple. You'll first have to take off the metal fob key and then open the port on the side of the key. After you have opened the access port and then, use a screwdriver that is flat to cut the two halves off of the fob. After the two halves have been separated, you can remove the battery that died and replace the new one. Snap the two halves back together after replacing the battery. If you require assistance, or if you have any other questions regarding how to replace the battery on your BMW key fob, contact us today! Our team is always ready to help. We look forward to helping you with all your automotive needs! CR2450 Battery It's possible you didn't know that 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 various functions, such as remote locking and unlocking, ComfortAccess and even remote starting your vehicle! These functions require the additional power that comes from a CR2450 battery that is slightly larger in size than its CR2032 counterpart. They are available in all places that sell regular lithium batteries of 3 volts such as supermarkets and gas stations. They typically cost around $7 to $9 for a pack of four batteries. However, careful price comparison shopping may uncover cheaper alternatives from lesser-known brands. It's simple to replace the battery on your BMW keyfob. It's not necessary to reset or re-synchronize your car. Simply remove the valet key from the fob, press a small tab in the opening, and then pull out the battery. Install a new battery the same way, making sure that the positive side is facing upwards, and put it back together. After you've replaced the battery in your BMW key fob, you must test it to ensure it locks and unlocks the car correctly and also works with all its other expected functions. For example, you can try pressing each of the buttons on the fob to make sure they are turned on, locked or unlock the trunk. Once you're sure that everything is functioning as is expected, put the fob together and go! The key fob contains a chip which stores the security codes and the programming needed to connect with your BMW. The information is powered by the battery in the key fob However, the chip is designed to retain this information even when the battery is removed. This is one of the reasons it's important to change the battery promptly when it begins to wear out. The majority of BMW models utilize the sleek CR2032 battery in their key fobs. This is a common battery type that can be found in most electronics and is easy to replace if you're required to. For models that use the Comfort Access and remote start features, however, a larger battery CR2450 is required. This is a more powerful battery, specially made for high-drain use. It can be bought from a variety of stores. These batteries can last for up to 10 Years when maintained properly. They have an average power of 600-620mAh. They are a great option for any application where you're looking to maximize durability and performance. For the best results, you should go with a reputable brand for your replacement battery. This will ensure that your new battery is of the highest quality and will stand up to the rigors of daily use. Battery CR2032 A C2032 Battery is a popular kind of coin cell battery used in a variety of electronic devices, including key fobs, remote controls as well as fitness and medical 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 found in bike components such as road shifters made by SRAM and FSA as well as certain headlights. As the name implies, a CR2032 battery is a lithium-based one and is a round shape with 20 millimeters of diameter and a height of 32 millimeters. It has a low self-discharge so it can be left in storage without losing a lot of charge. This battery is popular in electronics due to its low self-discharge and capacity to keep a charge even in extreme temperatures. Battery storage life can depend on a variety of factors including the quality of the material storage conditions and storage time, physical damage, humidity, and temperature. The ideal storage location is a climate-controlled, dry space with no physical damage. It is crucial to purchase only the best quality batteries from trusted retailers since lower quality batteries may have lower capacities and could end up dying prematurely. Lithium coin cells are available from all major battery manufacturers and can be found at most large retail stores. Some of the most popular brands are Energizer Panasonic and Duracell. These brands are reputed to adhere to the most stringent safety and reliability standards. If you have questions about the authenticity of a specific battery or its packaging, it's recommended to contact the manufacturer directly to obtain additional information. When using a CR2032, it is important to be aware that the battery has a positive terminal and a negative terminal. The positive terminal of a CR2032 battery marked with a dot on the top, while the negative terminal is marked by a line on the base. If the battery is placed into an item with the wrong side facing upwards, it could damage the device or even cause an explosion. There is no socket or plug to connect the battery CR2032. Instead a CR2032 battery is connected to the device via the metal tab. The tab has to be press down to connect the battery. This can only be done by hand. If you're putting the 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 function, or you may experience inconsistent results. The instructions for the majority of smoke detectors and smoke sensors include diagrams that explain how to insert the batteries. If you are unable to find the wiring diagram for your particular device, it's a good idea to watch an instructional video on how to insert the battery.