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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 type of battery can be found in a variety of hardware stores and even big-box stores. This battery can be changed in the at the comfort of your home. Tulley BMW of Nashua will guide you through the procedure, allowing you to return to the Johns Creek roads in no time. How to replace a battery Many BMW drivers don't realize that they might need to change the battery on their key fob at some point during their ownership. This is among the easiest DIY tasks for car maintenance that you can complete yourself. The replacement of the battery should only take a few moments and is a bargain. The battery is available in a variety of local convenience stores and parts stores 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 cover for the key fob and then carefully insert the new battery in gently. Be sure to be attentive to the orientation of the new battery, because it must be placed with the plus and minus signs in the same direction as the previous one. Once the battery is installed it is possible to replace the key fob and start driving your BMW again. Some older BMW models come with a different key type, which is a metal key that you insert into the ignition. The keys may also fail in time, and you will need to replace the battery to allow your vehicle to start. This kind of battery can be recharged, and recharging it requires cutting a small part of the key fob, therefore be cautious when doing this. The procedure to change the battery in this kind of BMW key is a bit different, but it's still extremely simple. First, you'll need 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. After you've opened the access port, you can use a flat screwdriver to separate the two halves of the key fob. Once the two halves are separated, you can easily remove the battery that died and replace the new one. The two halves will snap back together after you've replaced your battery. If you require assistance, or if you have any other questions regarding how to replace the battery on your BMW key fob, please contact us today! Our team is always happy to help. We are looking forward to helping you with your car requirements. Battery CR2450 It's possible you didn't even know, but the BMW key fob requires a specific battery to function properly. The CR2450 is a 3 volt lithium-ion coin cell battery. It powers the key fob's numerous functions, including remote locking, unlocking, ComfortAccess functionality, and even remote starting your vehicle! These features require the extra power that comes from the CR2450 battery that is slightly larger than its CR2032 counterpart. They are available in most places that sell regular lithium batteries of 3 volts like gas stations and supermarkets. They usually cost $7 to $9 per pack of four, but an accurate price comparison could reveal cheaper alternatives from lesser-known brands. It's simple to replace the battery in your BMW keyfob. It's not necessary to re-program or re-synchronize your vehicle. Simply remove the valet key from the fob, then press a small tab in the opening, then pull out the battery. Install bmw 1 series replacement key g28carkeys.co.uk , making sure that the positive side is facing upwards and then put it back together. It's important to test your BMW keyfob after replacing its battery to make sure it is working as you expect it to. This includes locking and unlocking the car and all other functions. You can, for instance press each button on the fob to verify that they lock, turn on or remove the trunk. Once you're sure that everything is working as expected you can put the fob on and go! The key fob has an embedded chip that stores the security codes and programs needed to communicate with your BMW. The battery in the key fob powers this information, however the chip is able to keep it even if you remove the battery. This is one of the reasons it's important to change the battery quickly when it begins to wear out. The vast majority of BMW models use the sleek CR2032 battery in their key fobs. This battery is used in electronic devices and can be easily replaced when required. A larger CR2450 battery is required for models that use the remote start or Comfort Access features. This is a stronger battery that is specifically designed for high-drain applications. It can be bought at a variety retailers. They can last up to 10 years if maintained properly. They have a nominal power of 600-620mAh. These batteries are great for high-drain situations where you want to maximize performance and longevity. For the best results, go with a reputable brand for your replacement battery. This will ensure that the new battery is high-quality and will hold up to rigorous everyday use. CR2032 Battery The CR2032 battery is a popular coin cell that is used in a wide range of electronic devices, including remote controls and key fobs. It is also used in fitness and medical trackers. This type of battery is also commonly used in heart rate monitors made by companies like Polar, Garmin and Wahoo Fitness. It is also utilized in bike components such as road shifters from SRAM and FSA as well as in certain headlights. A CR2032 uses lithium chemistry, and has a rounded shape with a diameter and height of between 20 and 32 millimeters. It has a very low self-discharge rate so it can lie dormant for years without losing too much of its charge. This low self-discharge rate and the ability to hold a charge in extreme temperatures make it a very popular battery for use in electronics. Battery life depends on a variety of variables including the quality of the material, storage conditions and storage time, humidity, physical damage and temperature. Ideally, you want to store the battery in a controlled climate and dry space that has no physical damage or degradation. It is essential to buy high-quality batteries from reliable retailers. Low-quality batteries may have lower mAh and will eventually die. Coin cells made of lithium are available from all major battery manufacturers and are sold at most large retail stores. The most well-known are Energizer Panasonic and Duracell. These brands are known to adhere to the highest safety and reliability standards. If you are unsure about the authenticity of the battery or its packaging it is best to ask the manufacturer for further details. One of the most important things to keep in mind when using a CR2032 battery is that it has two terminals: positive and negative. The positive terminal of a CR2032 battery marked with a dot on the top, while the negative terminal is marked by a line at the base. If the battery is inserted into a device with the wrong side facing upwards, it could damage the device, or even create an explosion. 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 needs to be press to connect the battery. This is only done by hand. The installation of a CR2032 into a device, such as a smoke detector or sensor requires that the tab contacts made of metal are in the proper position. The device might not function or give inconsistent results. The instructions for most smoke detectors and smoke sensors contain diagrams that indicate how to place the batteries. If you are unable to find the diagram for your specific device it's a good idea to watch a YouTube video on how to insert the batteries.