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Changing the Battery in Your BMW Car Key Fob Many BMWs require that the key fob has a sleek, slant-shaped battery. This type of battery is often readily available at hardware stores or even at big-box stores. The battery replacement is a straightforward process and can be done at the comfort of your 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 drivers aren't aware that they might need to change the battery in their key fobs at some point in their ownership. This is among the easiest DIY tasks for car maintenance that you can perform yourself. The replacement of your battery will take only a few minutes and is also very affordable. The battery can be found at local convenience stores and auto parts shops for less than ten dollars. In the majority of cases, the BMW key fob is powered by an CR2032 battery and is often known as a “watch battery.” Take off the cover for the key fob and then carefully insert the new battery in gently. Make sure to be attentive to the orientation of the new battery, since it has to be installed with the plus and minus symbols in the same direction like the old one. Once the new battery has been put in place, simply put the key fob cover back in place and you'll be able to drive your BMW around Decatur and Johns Creek again. Certain older BMW models use an alternative type of key, which features an actual metal key that inserts into the ignition. The keys may also fail over time, requiring you to replace the battery to allow your vehicle to start. This type of rechargeable battery requires you to cut off a tiny piece of the key fob in order to replace it. This type of BMW key has a slightly different procedure, but it's nonetheless very easy. First, you'll need remove the key made of metal from the fob, and then, you'll need to open the access port in the back of the key fob. Once you've opened the access port, you'll need to make use of a flat screwdriver to split the two halves of the key fob. When the two halves are separated, you can remove the dead battery and then insert the new one. You can snap the two halves back together after you've replaced the battery. Contact us today if require assistance or have questions regarding how to replace the battery in your BMW Key Fob. Our team is always ready to assist. We are looking forward to helping you with all your automotive needs! CR2450 Battery You may not realize it that your BMW key fob uses an exclusive battery to function effectively. The CR2450 is a lithium-ion 3 volt coin cell battery. It powers the key fob's numerous functions, including remote locking, unlocking, ComfortAccess functionality, and even remote starting your vehicle! These features require the extra power offered by the CR2450 battery that is slightly larger in size than its CR2032 counterpart. bmw car key replacement are available in any store that sells regular lithium batteries with a voltage of 3 volts like supermarkets and gas stations. They typically cost between $7 and $9 for a four-pack, however an accurate price comparison could reveal cheaper alternatives to lesser-known brands. It's simple to replace the battery in your BMW keyfob. You don't need to change the program or synchronize your vehicle. Remove the valet key, then pull out the battery and press the button. The new battery should be placed in exactly the same manner ensuring that the positive side is facing up. Reassemble the fob. After you've replaced your battery in your BMW key fob, it's important to test it to make sure it locks and unlocks the vehicle correctly and is compatible with all its other functions that are expected. You can, for instance press the buttons on the fob to make sure they lock, turn off or remove the trunk. After you're confident that everything is working as you expected then put the fob in place and go! The key fob also contains an embedded chip that contains the security codes and programming 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 when it begins to wear out. The majority of BMW models utilize the sleek CR2032 battery for their key fobs. This is a typical battery type that's found in all electronics, and it's easy to replace when you're required to. A larger CR2450 is needed for models that use the remote start or Comfort Access features. This is a more powerful battery specifically made for these applications and can be purchased from a variety of stores. They have a nominal capacity of around 600-620 mAh and last for 10 years if properly stored. They are a good choice for any high-drain task where you're looking to maximize durability and performance. Stick with a reputable replacement battery for the most efficient results. This will ensure that your new battery is of the highest quality, and will withstand everyday use. Battery CR2032 The CR2032 battery is a popular coin cell found in a variety of electronic devices, including key fobs and remote controls. It is also found in 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 widely utilized in bike components such as road shifters made by SRAM and FSA as well as in certain headlights. A CR2032 uses lithium chemistry, and is a round shape with a diameter and a height of 20 and 32 millimeters. It has a low self-discharge, so it can be left dormant without losing much charge. This battery is popular in electronics due to its low self-discharge rate and ability to hold the charge even in extreme temperatures. Battery life depends on a variety of variables including the quality of the material storage conditions and storage time, physical damage, humidity, and temperature. The ideal storage location is an air-conditioned, dry area without physical damage. It is crucial to purchase only the highest quality batteries from trusted retailers since low-quality batteries could have lower capacities in mAh and may die prematurely. Lithium coin cells are available from most major battery manufacturers and can be found at most large retail stores. Among the most popular are Energizer Panasonic and Duracell. These brands are renowned for their dedication to highest standards of safety and reliability. If you have questions regarding the authenticity of a specific battery or its packaging, it is recommended to contact the manufacturer directly for more information. When using a CR2032, it is important to keep in mind that the battery has a positive and an negative terminal. The positive terminal is marked by a dot at the 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 up it could cause damage to the device or create a fire hazard. There isn't a socket or plug to connect the CR2032 battery. Instead, a CR2032 battery connects to the device via the metal tab. The tab has to 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, be sure that the metal tab contacts are in the correct location. If not, the device might not function or you may experience inconsistent results. The instructions for all smoke sensors and detectors include diagrams that explain how to place the batteries. If you cannot find an illustration for your device, it is recommended to watch a video on how to install the batteries.