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Changing the Battery in Your BMW Car Key Fob Many BMWs require that the key fob has an elegant, slant-shaped battery. This kind of battery is typically available at hardware stores or even at big-box stores. This battery can be changed in the comfort of your own home. Tulley BMW Nashua can guide you through the procedure so you can be back on Johns Creek roads quickly. How do you replace a battery Many BMW owners are unaware that they may need to replace the battery in their keyfob at some moment. This is one of the most simple DIY car maintenance tasks that you can perform yourself. The replacement of your battery will only take a few moments, and it is inexpensive. The battery can be found at local convenience stores and auto parts shops for less than ten dollars. In most cases the BMW key fob uses the CR2032 battery that is also known as a “watch battery.” Remove the cover for the key fob and carefully place the new battery gently. Make sure you pay close attention to the orientation of the new battery, as it must be installed with the plus and minus signs facing the same way like the old one. Once the new battery has been put installed, just put the key fob cover back in place, and you'll be ready to drive your BMW around Decatur and Johns Creek again. Some older BMW models have a different key type, which is a metal key that you insert into the ignition. Keys can also become obsolete 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 small piece of the key fob in order to replace it. This kind of BMW key has a slightly different procedure, but it's still very simple. First, you'll have to remove the key made of metal from the fob, then, you'll need to open the access port in the side of the key fob. Once you have opened the access port, you'll need to make use of a flat screwdriver to separate the two halves of the key fob. When 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 help, or if you have questions regarding how to replace the battery on your BMW key fob, contact us now! Our team is always ready to assist. We look forward to helping you with all your automotive needs! CR2450 Battery It's not obvious that your BMW key fob is powered by an exclusive battery to function effectively. The CR2450 battery is a 3 volt lithium coin cell battery that provides power to the various functions of your key fob, including remote locking and unlocking, Comfort Access functionality, and even remotely starting your automobile! These functions require the additional power provided by a CR2450 battery that is slightly larger in size than its CR2032 counterpart. These batteries are available at supermarkets and gas station and other stores that sell lithium batteries with 3 volts. They typically cost $7 to $9 per four-pack, but an accurate price comparison could uncover lower-cost alternatives from lesser-known brands. The battery change inside your BMW key fob is a straightforward procedure that doesn't require additional reprogramming or resyncing with your vehicle. Remove the valet key, then pull out the battery and push the button. Place a new battery in the same way, making sure that the positive side is facing up, and put it back together. It is important to test your BMW keyfob after replacing its battery to ensure that it works as expected. This includes locking and unlocking the vehicle, as well as other functions. For instance, you can try pressing each of the buttons on the fob to see if they are turned on, locked or unlock the trunk. Once everything is functioning as expected then you can put the fob back together and go moving! The key fob contains a chip which stores the security codes and the programming needed to communicate with your BMW. The battery that powers the key fob is responsible for this information, but the chip can retain it even if you remove the battery. This is one of the main reasons it's crucial to replace the battery promptly when it begins to wear out. BMW key fobs run on sleek CR2032 batteries. This is a typical battery type that can be found in all electronics, and it's easy to replace whenever you require it. For models that make use of the Comfort Access and remote start features, however, a larger battery CR2450 is required. This is a much more powerful battery specifically designed for high-drain applications and is available from a wide range of retailers. These batteries can last up to 10 years when stored properly. They come with a nominal power of 600-620mAh. These batteries are great for applications with high drains where you want to maximize performance and durability. For the best results, you should go with a reputable brand for your replacement battery. This will ensure that the new battery is of the highest quality and will last through everyday use. Battery CR2032 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 used in fitness and medical trackers. This type of battery is also commonly used in heart rate monitors from companies such as Polar, Garmin and Wahoo Fitness. It is also found in bike components such as road shifters manufactured by SRAM and FSA, as well as certain headlights. Like the name suggests, a CR2032 battery is a lithium-based one and is round in shape with a diameter of 20 millimeters and a height of 32 millimeters. It has a low self-discharge, which means it can remain in storage without losing a lot of charge. This battery is popular for electronics due to its low self-discharge as well as the ability to maintain the charge even in extreme temperatures. The life of batteries can depend on a myriad of factors such as the quality of the material, storage conditions such as storage time and physical damage, humidity and temperature. It is recommended to keep the battery in a climate controlled and dry space that has no physical damage or degradation. It is crucial to only purchase the best quality batteries from reliable retailers. Low-quality batteries may have lower capacity and will eventually die. Major battery makers offer lithium coin cells. bmw car key g28carkeys.co.uk are also sold in many large retail stores. Some of the most sought-after brands include Energizer, Panasonic and Duracell. These brands are known for their dedication to the highest standards of safety and dependability. If you have questions about the authenticity of a particular battery or its packaging, it is recommended to contact the manufacturer directly for additional information. When using a CR2032 It is crucial to be aware that the battery has a positive terminal and the negative terminal. The positive terminal is identified by a dot on top of the battery, and the negative is marked by an arc across the base. If the battery is placed into a device with the wrong side facing forward, it could damage the device or even cause a fire hazard. In contrast to other types of batteries, there is no socket or plug to connect it. A CR2032 connects to a device through a metal tab. The tab has to be squeezed to connect the battery. This can only be done by hand. If you're installing a CR2032 battery into a device such as a sensor or smoke detector make sure the tab contacts on the metal are in the right location. The device might not function or you could 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 cannot find an illustration for your particular device it's a good idea that you watch a video that demonstrates the proper way to install the batteries.