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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 a wide range of hardware stores, and even big-box stores. The battery can be changed at the convenience of your home. Tulley BMW of Nashua will walk you through this procedure, allowing you to return to the Johns Creek roads in no time. How to replace bmw replacement car keys don't know that they might require a battery change on their key fob at some point during ownership. This is among the easiest DIY car maintenance tasks that you can perform yourself. The replacement of your battery will take only a few minutes and is a bargain. You can find the battery at a variety of local convenience stores as well as parts centers for less than ten dollars. In most cases the BMW key fob has a CR2032 battery and is often called a “watch battery.” Remove the key fob cover, and then gently insert the new battery gently. Make sure to pay attention to the orientation of the new battery because it must be placed with the plus and minus signs in the same direction like the old one. After the new battery is 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 a different type of key that has a physical metal key that inserts into the ignition. These keys can also die with time, requiring you 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 to replace it. The procedure to replace the battery on this kind of BMW key is slightly different, but extremely simple. First, you'll have to remove the metal key from the fob, and then open the access port in the side of the key fob. Once you have opened the access port, you'll need to use a flat screwdriver to split the two halves of the key fob. Once the key fob has been separated into two halves you can easily take it off and replace the dead battery. You can snap the two halves back together once you've replaced the battery. Contact us today if require assistance or have any questions about how to replace the battery on your BMW Key Fob. Our team is always ready to help. We look forward to assisting you with your car requirements. Battery CR2450 It's not obvious, but your BMW key fob requires a specific battery in order to function properly. The CR2450 battery is a three-volt coin cell battery made of lithium that powers the numerous functions of your key fob, such as remote locking and unlocking, Comfort Access functionality, and even remotely starting your vehicle! These functions require the additional power offered by a CR2450 battery, which is slightly larger than its CR2032 counterpart. They are sold in gas stations and supermarkets as well as other retailers which sell lithium batteries of 3 volts. These batteries typically cost $7 to $9 per four-pack, but an accurate price comparison could reveal cheaper alternatives from lesser-known brands. It's simple to replace the battery in 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 tab. Install a new battery the same way, making sure that the positive side is facing up and then put it back together. It's crucial to test your BMW key fob after replacing its battery to ensure that it functions as expected. This includes locking and unlocking the vehicle, as well as other functions. You can, for instance press the buttons on the fob in order to verify that they lock, turn on 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 an embedded chip that contains the security codes and programs necessary to communicate with your BMW. The battery in the key fob powers this information, but the chip will keep it even after you remove the battery. This is why it's so important to replace the battery when it begins to wear out. BMW key fobs are powered by sleek CR2032 batteries. This is a typical battery type that can be found in all electronics and is simple to replace when you're required to. For models that use the remote start and comfort access features however, a bigger CR2450 battery is required. This is a more powerful battery, specially designed for use in high-drain situations. It can be bought at various retailers. They have a nominal capacity of around 600-620 mAh and can last for up to 10 years if properly stored. They are an excellent option for any application where you want to maximize the longevity and performance. For the best results, go to a trusted brand for your replacement battery. This will ensure your new battery will be high-quality and will stand up to daily use. CR2032 Battery The CR2032 battery is a common coin cell that is used in a variety of electronic devices, such as remote controls and key fobs. It is also found in medical and fitness trackers. This kind of battery is also used in heart rate monitors manufactured by companies like Polar, Garmin, and Wahoo Fitness. It is also used in bike components like road shifters from SRAM and FSA as well as in a few headlights. A CR2032 uses lithium chemistry, and has a round shape with a diameter and height of between 20 and 32 millimeters. It has a very low self-discharge rate, which means it can lie dormant for a long time, without losing much of its charge. This low self-discharge rate and the ability to hold a charge in extreme temperatures make it an extremely popular battery for use in electronics. Battery storage life can depend on a myriad of factors including the quality of the material, storage conditions, storage time as well as physical damage, humidity and temperature. Ideal storage is in a dry, climate-controlled area without physical damage. It is important to buy only the highest quality batteries from reliable retailers because less expensive batteries might have lower capacities in mAh and could die prematurely. Coin cells made of lithium are available from the majority of major battery manufacturers and are available at the majority of 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 are uncertain about the authenticity of the battery or its packaging it is recommended to contact the manufacturer for further details. When using a CR2032, it is important to remember that the battery has a positive terminal and the negative terminal. The positive terminal of a CR2032 batteries is marked by a dot at the top, and the negative terminal is marked with an arrow on the base. If the battery is inserted into a device with the wrong side facing upwards, it could damage the device or even cause the risk of fire. In contrast to other types of batteries, there's no plug or socket to connect it. A CR2032 connects to a device through a metal tab. The tab must be pressed to connect the battery. This is only done by hand. The installation of a CR2032 into a device like a smoke detector or sensor requires that the tab contacts on the metal be in the proper position. The device may not work or you could experience inconsistent results. The instructions for the majority of smoke sensors and detectors include diagrams that explain how to place the batteries. If you can't find an electrical diagram for your particular device It's a good idea to watch a video that shows the proper way to install the battery.