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Changing the Battery in Your BMW Car Key Fob Many BMWs require a key fob with a sleek, slant-shaped battery. This type of battery is available at many hardware stores and even big-box stores. The battery can be replaced in the at the comfort of your home. Tulley BMW of Nashua will guide you through this procedure, allowing you to be back on the Johns Creek roads in no time. How to change a battery Many BMW owners don't know that they may need to change the battery in their key fob at some point during their ownership. It's a good thing, as this is one of the easiest DIY car maintenance tasks that you can handle yourself. It should take you no more than an hour to replace the battery and the cost of replacement is low. You can find the battery at many local convenience stores and parts stores for less than ten dollars. The BMW key fob is typically powered by a CR2032, also known as a “watch” battery. Take off the cover of the key fob and then gently insert the new battery. Make sure to pay attention to the orientation of the new battery since it has to be installed with the plus and minus indicators facing the same way as the old one. Once the battery is installed it is possible to replace the key fob, and then drive your BMW again. Some older BMW models have a different type of key that is an actual metal key that fits into the ignition. These keys can also die in time, and you will need to change the battery to allow your vehicle to start. This type of rechargeable battery requires you to cut a tiny piece of the key fob to replace it. This type of BMW key has an entirely different procedure, however it's still very simple. First, you'll need remove the metal key from the fob, and then, you'll need to open the access port on the back of the key fob. After you've opened the access port, make use of a flat screwdriver to separate the two halves of the key fob. Once the two halves are separated, you can easily remove the dead battery and insert the new one. The two halves will snap back together after replacing your battery. If you need assistance, or if you have any other questions regarding how to replace the battery in your BMW key fob, please contact us now! Our team is always ready to help. We are looking forward to helping you with all your automotive requirements! CR2450 Battery You might not be aware that your BMW key fob is powered by a specific battery in order to function effectively. The CR2450 battery is a three-volt coin cell battery made of lithium that powers the various functions of your key fob, including remote locking and unlocking, Comfort Access functionality, and even remotely starting your car! These features require the extra power that comes from the CR2450 battery, which is slightly larger in diameter than its CR2032 counterpart. These batteries are available in supermarkets and gas station, as well as other stores which sell lithium batteries of 3 volts. These batteries typically cost between $7 and $9 for a four-pack, however a careful comparison of prices could provide lower-cost alternatives from lesser-known brands. Changing the battery in your BMW key fob is an easy process that doesn't require any additional programming or resyncing with your vehicle. Simply remove the valet key from the fob, press a small tab in the opening, and pull out the current battery. Place the new battery in exactly the same way ensuring that the positive side faces upwards. Reassemble the fob. It's important to test your BMW keyfob after you've replaced its battery to make sure it functions as expected. This includes locking and unlocking the car, as well as all other functions. For instance, you can press the buttons on the fob to make sure they lock, turn off or pop the trunk. Once everything is functioning as expected, you can put the fob back together and go on your way! The key fob also houses a chip that holds the security codes and program necessary to communicate with your BMW. This information is powered by the key fob's battery, but the chip is designed to retain the information even if the battery is removed. 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 when needed. A larger CR2450 battery is required for models with Comfort Access or remote start features. This is a more powerful battery, specially made for high-drain use. It can be bought at a variety retailers. These batteries can last for up to 10 years when stored properly. They have a nominal power of 600-620mAh. They are an excellent choice for any high-drain application where you're looking to maximize longevity and performance. Make sure you choose a reliable replacement battery for the best results. This will ensure that your new battery is high-quality and will hold up to the demands of everyday use. CR2032 Battery The CR2032 battery is a common coin cell found in a variety of electronic devices, such as remote controls and key fobs. It can also be found in medical and fitness trackers. This kind of battery can also be found in heart rate monitors manufactured by companies like Polar, Garmin, and Wahoo Fitness. It is also commonly utilized in bike components such as road shifters from SRAM and FSA as well as in some 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 rate, so it can be left dormant without losing much charge. The low self-discharge rate as well as the ability to keep a charge even in extreme temperatures make it a very popular battery for electronics. bmw key repair of batteries can depend on a variety of variables such as the quality of the material storage conditions, storage time as well as physical damage, humidity and temperature. The ideal storage space is an air-conditioned, dry area with no physical damage. It is important to buy only the best quality batteries from reputable retailers as lower quality batteries may have lower capacities and can die prematurely. Coin-cells made of lithium are available from most major battery manufacturers and are sold at most large retail stores. Some of the most sought-after brands include Energizer, Panasonic and Duracell. These brands are known for their dedication to highest standards of safety and reliability. If you have any doubts about the authenticity of a specific battery or its packaging, it is best to contact the manufacturer directly for additional details. When using a CR2032 It is crucial to keep in mind that the battery has a positive terminal and the negative terminal. The positive terminal is indicated by a dot at the top of the battery and the negative is marked by a line across the base. If you place the battery into a device the incorrect way, the device could be damaged or even become a fire risk. There is no socket or plug to connect the CR2032 battery. A CR2032 connects to a device using a metal tab. This tab must be press 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 a smoke detector or sensor ensure that the metal tab contacts are in the proper location. If they aren't, the device might not work or you could have inconsistent results. The instructions for the majority of smoke sensors and detectors include diagrams that indicate how to place the batteries. If you can't find the wiring diagram for the specific device It's a good idea to watch an instructional video that demonstrates how to install the battery.