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Changing the Battery in Your BMW Car Key Fob Many BMWs require a key fob that has a sleek, slant-shaped battery. This type of battery is available in a variety of hardware stores and even at big-box retailers. The battery replacement is a very simple process and can be done at the comfort of your home. Tulley BMW of Nashua will walk you through this procedure, allowing you to be back on the Johns Creek roads in no time. How do you change a battery Many BMW owners don't know that they could require a replacement battery in their keyfob at some time. It's a good thing, as this is one of the easiest car maintenance tasks that you can do yourself. The replacement of your battery will take just a few minutes and is also very affordable. The battery can be found at a variety of local convenience stores as well as parts centers for less than ten dollars. In most instances, the BMW key fob is powered by a CR2032 battery and is often known as a “watch battery.” Remove the cover of the key fob, and carefully place the new battery gently. Be sure to be attentive to the orientation of the new battery as it must be installed with the plus and minus indicators in the same direction like the old one. 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 that is an actual metal key that fits into the ignition. The batteries that are in these keys also degrade in time, so you'll have 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 to replace it. The process to replace the battery on this kind of BMW key is a little different, however it's simple. First, you'll need remove the key made of metal from the fob, and then open the access port in the side of the key fob. Once you have opened the access port, make use of a flat screwdriver to divide the two halves of the key fob. After the two halves have been separated, you can easily remove the dead battery and insert the new one. Snap the two halves back together after replacing the battery. If you need assistance or have additional questions about how to replace the battery in your BMW key fob, call us now! Our team is always ready to assist. We are looking forward to helping you with all your automotive requirements! CR2450 Battery You may not realize it, but your BMW key fob is powered by an exclusive battery to function effectively. The CR2450 is a 3-volt lithium-ion coin cell battery. It powers the key fob's many functions, such as remote locking, unlocking, ComfortAccess functionality and even remote starting your vehicle! These functions require additional power provided by the CR2450 battery that is a bit larger in size than its CR2032 counterpart. They are available in any store that sells regular 3-volt lithium batteries, such as gas stations and supermarkets. They usually cost between $7 to $9 for a package of four batteries, but an accurate price comparison may uncover cheaper alternatives from lesser-known brands. It's simple to replace the battery in your BMW keyfob. There is no need to re-program or re-synchronize your vehicle. Simply remove the valet key from the fob, then press the small tab that's in the opening, then pull out the existing battery. Install a new battery the same manner, making sure that the positive side is facing up and then put it back together. After you've replaced the battery in your BMW key fob, it's crucial to test it to make sure it locks and unlocks the vehicle correctly and is compatible with all its other expected functions. You can, for example press each button on the fob in order to ensure that they lock, turn off or remove the trunk. Once everything's working as expected you can put the fob back together and get on your way! The key fob also contains an embedded chip that contains the security codes and program required to connect with your BMW. This information is powered by the key fob's battery However, the chip is designed to retain this information even if the battery is removed. This is why it's important to replace the battery as soon as it starts to wear out. BMW key fobs are powered by the sleek CR2032 batteries. This is a common battery type that can be found in most electronics and is easy to replace whenever you're required to. A larger CR2450 is needed for models that use the remote start or Comfort Access features. This is a stronger battery that's specially designed for these high-drain applications and is available from a variety of stores. These batteries can last up to 10 years when maintained properly. They have a nominal capacity of 600-620mAh. These batteries are perfect for high-drain applications where you need to maximize performance and longevity. Make sure you choose a reliable replacement battery to get the most efficient results. This will ensure that your new battery is of high-quality and will last through the demands of daily use. CR2032 Battery The CR2032 battery is a common coin cell used in a wide range of electronic devices, such as remote controls and key fobs. It is also found in medical and fitness trackers. This kind of battery can also be found in heart rate monitors produced by companies like 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 a few headlights. Like the name suggests, a CR2032 battery is made up of lithium chemistry and is a round shape with a diameter of 20 millimeters 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. The low self-discharge rate as well as the ability to hold a charge in extreme temperatures make it a very popular battery for use in electronics. Battery storage life can depend on a variety of variables such as the quality of the material, storage conditions, storage time, humidity, physical damage and temperature. Ideally, bmw spare key cost should store the battery in a controlled climate and dry location that is free of physical damage or degrading. It is important to buy only the highest quality batteries from reliable retailers because lower quality batteries may have lower mAh capacities and can end up dying prematurely. Lithium coin cells are available from most major battery manufacturers and are available in a wide range of retail stores. Some of the most popular brands are Energizer Panasonic and Duracell. These brands are renowned for their dedication to the highest standards of safety and dependability. If you have any questions about the authenticity of a specific battery or its packaging, it is recommended to contact the manufacturer directly to obtain additional information. One of the most important things to remember when using a CR2032 battery is that it has both a positive and negative terminal. The positive terminal is identified by a dot on top of the battery, and the negative terminal is identified by a line across the base. If the battery is placed into an item with the wrong side facing forward, it could damage the device, or even create a fire hazard. In contrast to other types of batteries, there is no socket or plug to connect to it. A CR2032 connects to a device using a metal tab. The tab must be squeezed to connect the battery. This is only done by hand. If you're installing a CR2032 battery into a device such as smoke detectors or sensors make sure the tab contacts on the metal are in the proper location. The device may not work, or you may experience inconsistent results. The instructions for all smoke sensors and detectors include diagrams that indicate how to insert the batteries. If you are unable to find a diagram for your specific device, it is a good idea that you watch a video on how to insert the batteries.