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Changing the Battery in Your BMW Car Key Fob Many BMWs require keys with an elegant, slant-shaped, sleek battery. This kind of battery is available in a variety of hardware stores and even big-box retailers. This battery can be changed at the comfort of your own home. Tulley BMW Nashua can guide you through the process to ensure you can be back on Johns Creek roads quickly. How to change a battery Many BMW owners don't know that they could require a battery change in their key fobs at some point in their ownership. Fortunately, this is one of the easiest DIY car maintenance tasks you can handle yourself. It should take you no more than just a few minutes to replace the battery and the cost of replacement is low. The battery is available at local convenience stores and auto parts stores for less that ten dollars. In the majority of instances the BMW key fob has an CR2032 battery, which is also commonly known as a “watch battery.” Take off the cover of the key fob, and then gently insert the new battery gently. Make sure you be attentive to the orientation of the new battery, since it has to be installed with the plus and minus symbols facing the same way like the old one. Once the battery is installed, you can replace the key fob, and then drive your BMW again. Certain older BMW models use keys of a different kind that is a physical metal key that fits into the ignition. The keys may also fail in time, and you will need to change the battery in order for 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. The process to change the battery in this kind of BMW key is a little different, but it's still very easy. First, you'll need remove the metal key from the fob, and then, you'll need to open the access port in the back of the key fob. Once you have opened the access port, make use of a flat screwdriver to split the two halves of the key fob. After the two halves have been separated, you can remove the dead battery and then insert the new one. After you've changed the battery, simply snap the two halves of the key fob together again. Contact us today if require assistance or have concerns about replacing the battery in your BMW Key Fob. Our team is always there to assist you. We are looking forward to helping you with all your automotive needs! Battery CR2450 It's possible that you didn't realize that the BMW key fob requires a specific battery in order to function properly. The CR2450 is a 3-volt lithium-ion coin cell battery. It powers the key fob's various functions, including remote locking unlocking, ComfortAccess and even remote start of your vehicle! These functions require additional power provided by the CR2450 battery that is slightly larger in size than its CR2032 counterpart. These batteries are available in gas stations and supermarkets as well as other retailers that sell lithium batteries with 3 volts. They usually cost $7 to $9 per pack of four, but an accurate price comparison could reveal cheaper alternatives to lesser-known brands. It's easy to replace the battery on your BMW keyfob. You don't need to re-program or re-synchronize your vehicle. Remove the valet key, then pull out the battery and push the button. Install the new battery exactly the same manner and ensure that the positive side faces towards the upward direction. Reassemble the fob. After you've replaced the battery in your BMW key fob, it's crucial to test it to ensure it locks and unlocks the car properly and also works with all its other functions expected of it. You can, for instance press each button on the fob in order to make sure they lock, turn on or off the trunk. After you're confident that everything is functioning as you expected, put the fob together and go! The key fob also has an electronic chip that stores the security codes and program necessary to communicate with your BMW. The key fob battery powers this information, however the chip is able to keep it even if you remove the battery. This is why it's so important to replace the battery as soon as it starts to wear out. The vast majority of BMW models utilize the sleek CR2032 battery in their key fobs. This is a common battery type that can be found in a variety of electronic devices and is easy to replace whenever you require it. For models that use the Comfort Access and remote start features however, a bigger CR2450 battery is required. This is a stronger battery that has been specifically designed for use in high-drain situations. It can be purchased from a variety of retailers. These batteries can last up to 10 Years when maintained properly. They come with a nominal capacity of 600-620mAh. These batteries are perfect for applications with high drains where you need to maximize performance and longevity. For bmw keys replacement , stick with a trusted brand your replacement battery. This will ensure that your new battery is of the highest quality, and will withstand the demands of daily use. Battery CR2032 A CR2032 Battery is a common type of coin cell battery utilized in many electronic devices including remote controls, key fobs and medical and fitness trackers. This type of battery is also used in heart rate monitors from companies like Polar, Garmin and Wahoo Fitness. It is also found in bicycle components, such as road shifters by SRAM and FSA, as well as some headlights. A CR2032 uses lithium chemistry, and has a round shape with a diameter and height of 20 and 32 millimeters. It has a very low self-discharge, so it can be left in dormancy for a long time without losing too much of its charge. The low self-discharge rate as well as the ability to hold a charge in extreme temperatures makes it an extremely popular battery for use in electronic devices. Battery life depends on many factors, including the material storage conditions, the storage time the battery, physical damage, humidity and temperature. The ideal storage location is an air-conditioned, dry area with no physical damage. It is crucial to purchase only the highest quality batteries from reliable retailers because less expensive batteries might have lower capacities in mAh and could end up dying prematurely. Lithium coin cells are available from all major battery manufacturers and are sold in a wide range of retail stores. Some of the most well-known include Energizer, Panasonic and Duracell. These brands are known for their commitment to the highest standards of safety and dependability. If you are uncertain about the authenticity of the battery or the packaging, it is best to inquire with the manufacturer for further details. When using a CR2032 It is crucial to keep in mind that the battery has a positive terminal and an negative terminal. The positive terminal is marked by a dot at the top of the battery while the negative terminal is identified by a line across the base. If you insert the battery into a device the incorrect way the device could get damaged or even a fire hazard. Unlike some types of batteries, there's no socket or plug to connect to it. A CR2032 connects to a device using an aluminum tab. This tab must be pulled down to connect the battery, and can only be done by hand. Installing a CR2032 into a device such as a smoke detector or sensor requires that the tab contacts made of metal are in the correct position. The device might not function or give inconsistent results. The instructions for most smoke sensors and detectors include diagrams that explain how to insert the batteries. If you can't find a wiring diagram for the specific device it's an excellent idea to look up an instructional video that demonstrates how to install the battery.