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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. This type of battery is typically available at hardware stores or even big-box stores. Changing this battery is a straightforward process and can be completed at the comfort of your home. Tulley BMW of Nashua will guide you through this process, so you can be back on the Johns Creek roads in no time. How to Replace a Battery Many BMW owners don't know that they could have to replace the battery in their key fobs at some point in their ownership. This is among the most simple DIY tasks for car maintenance that you can do yourself. The replacement of your battery will take just a few minutes and is a bargain. The battery is available in a variety of local convenience stores as well as parts centers for less than ten dollars. In the majority of cases the BMW key fob has an CR2032 battery and is often known as a “watch battery.” Take off the key fob cover, and then gently insert the new battery gently. Pay attention to the orientation. The new battery must be installed in a manner that the plus and symbols for minus are facing the same way as the old battery. Once the battery is installed, you can replace the key fob and drive your BMW again. Certain older BMW models use keys of a different kind that is a physical metal key that is inserted into the ignition. Keys can also become obsolete in time, and you will need to change the battery in order for your vehicle to start. This kind of battery can be recharged, and replacing it requires cutting off a small piece of the key fob so be very careful when performing this task. This type of BMW key requires an entirely different procedure, but it's nonetheless very easy. First, you'll have to remove the key made of metal from the fob, then open the access port on the side of the key fob. After you have opened the access port then use a screwdriver with a flat head to cut the two halves off of the fob. Once the key fob is separated into two halves it is easy to remove and replace the dead battery. Snap the two halves back together after replacing the battery. If you need help or have additional questions about how to replace the battery on your BMW key fob, please contact us now! Our team is always ready to help. We are looking forward to helping you with your automotive needs. CR2450 Battery You might not be aware, but your BMW key fob uses a specific battery in order to function correctly. The CR2450 is a 3-volt lithium-ion coin cell battery. It powers the key fob's various functions, including remote locking and unlocking, ComfortAccess and even remote starting your vehicle! These functions require the additional power offered by the CR2450 battery that is a bit larger than its CR2032 counterpart. They are available in most places that sell regular lithium batteries of 3 volts, such as supermarkets and gas stations. They typically cost $7 to $9 for a set of four batteries, but an accurate price comparison may uncover cheaper alternatives from lesser-known brands. Changing the battery inside your BMW key fob is a simple process that doesn't require any additional reprogramming or resyncing with your vehicle. Simply remove the valet key from the fob, then press the small tab that's in the opening, then pull out the current battery. Install replacement bmw keys , making sure that the positive side is facing upwards and then 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 works with all of its other functions that are expected. For instance, you can press the buttons on the fob to verify that they lock, turn off or off the trunk. Once you're sure that everything is working as is expected then put the fob in place and go! The key fob contains a chip which stores the security codes and programming required to connect with your BMW. The information is powered by the battery in the key fob, but the chip is designed to keep this information even if the battery is removed. This is why it's important to replace the battery when it begins to wear out. BMW key fobs are powered by sleek CR2032 batteries. The battery is commonly used in electronic devices and is easily replaced when required. For models that use the remote start and Comfort Access features, however, a larger battery CR2450 is required. This is a more powerful battery that is specifically designed for use in high-drain situations. It can be purchased at various retailers. These batteries can last up to 10 Years when kept in a safe and secure manner. They have a nominal capacity of 600-620mAh. They are a good choice for any high-drain application where you're looking to maximize longevity and performance. For the best results, go with a trusted brand your replacement battery. This will ensure that the new battery will be high-quality and will stand up to everyday use. CR2032 Battery A CR2032 Battery is an extremely popular type of coin cell battery utilized in a variety of electronic devices, including remote controls, key fobs and medical and fitness trackers. This type of battery is also found in heart rate monitors made by companies like Polar, Garmin, and Wahoo Fitness. It is also widely found in bicycle components, such as road shifters made by SRAM and FSA as well as some headlights. As the name implies, a CR2032 battery is a lithium-based one and is round in shape with 20 millimeters of diameter and a height of 32 millimeters. It has a low self-discharge rate, meaning it can be left in storage for a long time without losing any charge. This battery is popular in electronics due to its low self-discharge rate and ability to maintain the charge even in extreme temperatures. Battery storage life can depend on a variety of factors including material quality, storage conditions such as storage time, physical damage, humidity and temperature. Ideally, you should keep the battery in a climate-controlled and dry space that has no physical damage or degrading. It is essential to buy high-quality batteries from reliable retailers. Lower quality batteries can have lower capacity and may die prematurely. The majority of major battery manufacturers sell lithium coin cells. They are also available in a majority of large retail stores. replacement bmw keys of the most sought-after brands include Energizer, Panasonic and Duracell. These brands are known for adhering to the most stringent safety and reliability standards. If you are uncertain about the authenticity of the battery or the packaging, it is best to ask the manufacturer for more details. One of the most important points to keep in mind when using a CR2032 battery is that it has both a positive and negative terminal. The positive terminal of a CR2032 battery is marked by a dot at the top, while the negative terminal is marked with an arrow on the base. If you put the battery into a device the wrong way up the device could get damaged or even be an ignition risk. There is no 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 to connect the battery. This is only done by hand. If you're putting a CR2032 battery into a device such as smoke detectors or sensors, be sure that the metal tab contacts are in the correct place. The device may not work or you could experience inconsistent results. Fortunately, the instructions for the majority of smoke detectors and sensors provide diagrams showing which method to place the battery. If you cannot find an illustration for your specific device it is recommended to watch a YouTube video showing the correct way to insert the batteries.