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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 can be found at a wide range of hardware stores, and even big-box retailers.

The battery can be changed in the convenience of your home. Tulley BMW Nashua can guide you through the process to ensure you are back on Johns Creek roads quickly.

How to change a battery

Many BMW drivers don't realize that they might need to change the battery in their key fobs at some point in their ownership. Fortunately, this is one of the easiest DIY car maintenance tasks that you can do yourself. It will take no more than just a few minutes to change the battery and the cost of replacement is minimal. You can find the battery at a variety of local convenience stores and parts centers for less than ten bucks.

The BMW key fob is typically powered by a CR2032 which is also referred to as a "watch" battery. Take off the cover of the key fob and gently place the new battery. Pay attention to the orientation. The new battery should be placed in a way that the plus and negative symbols are facing the same way as the old battery. Once the new battery is in place, simply put the cover for the key fob back on, and you'll be ready to drive your BMW around Decatur and Johns Creek again.

Certain older BMW models use a different type of key that is an actual metal key that is inserted into the ignition. The batteries inside these keys can also die with time, so you will need to replace them to get your vehicle started. This kind of battery can be recharged, and recharging it requires cutting off a small piece of the key fob, so be careful when performing this task.

This type of BMW key requires an entirely different procedure, but it's nonetheless very easy. First, you'll need to remove the metal key from the fob, then, you'll need to open the access port on the side of the key fob. Once you've opened the access port, you'll need to employ a flat screwdriver divide 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. Snap bmw key replacement after replacing your battery. If you require assistance or have additional questions about how to replace the battery in your BMW key fob, call us now! Our team is always available to assist you. We are looking forward to helping you with your car needs.

CR2450 Battery

It's not obvious, but your BMW key fob requires a special battery to work effectively. The CR2450 battery is a 3 volt lithium coin cell battery that helps provide power to the various functions of your key fob, including remote locking and unlocking, Comfort Access functionality, and even remotely starting your vehicle! These features require a CR2450 coin cell battery which is slightly larger than its CR2032 equivalent.

These batteries are available in all places that sell regular 3-volt lithium batteries like gas stations and supermarkets. They typically cost around $7 to $9 for a set of four batteries, but careful price comparison shopping may reveal cheaper options from lesser-known brands.

It's simple to replace the battery on your BMW keyfob. You don't need to reset or re-synchronize your car. Simply remove the valet key from the fob, then press the small tab that's in the opening, then pull out the battery. Place a brand new battery in the same way, making sure that the positive side is facing upwards and then reassemble the fob.

It's important to test your BMW keyfob after you've replaced its battery to ensure it works as expected. This includes locking and unlocking the vehicle, as well as all 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 you're certain that everything works as expected then put the fob in place and go!

The key fob also has a chip that holds the security codes and program necessary to communicate with your BMW. This information is powered by the key fob's battery However, the chip is designed to store this information even when the battery is removed. This is one of the main reasons it's crucial to replace the battery promptly when it begins to get worn out.





BMW key fobs run on sleek CR2032 batteries. This is a typical battery type that is found in a variety of electronic devices and is simple to replace if you're required to. A larger CR2450 is needed for models that utilize the remote start or Comfort Access features. This is a stronger battery specifically designed for these high-drain applications and can be bought from a wide range of retailers. These batteries can last for up to 10 years if kept in a safe and secure manner. They come with a nominal capacity of 600-620mAh. They are an excellent option for any application that requires durability and performance. For the best results, you should go to a trusted brand for your replacement battery. This will ensure that your new battery is high-quality and will stand up to rigorous daily use.

CR2032 Battery

The CR2032 battery is a common coin cell found in a wide range of electronic devices, including key fobs and remote controls. It is also used in fitness and medical trackers. This kind of battery can also be found in heart rate monitors manufactured by companies such as Polar, Garmin, and Wahoo Fitness. It is also widely found in bike components such as road shifters manufactured by SRAM and FSA, as well as certain headlights.

The name suggests that a CR2032 battery uses lithium chemistry and is round in shape with 20 millimeters of diameter and height of 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. This battery is a favorite for electronics because of its low self-discharge rate and ability to maintain a charge even in extreme temperatures.

Battery life depends on many factors, including the materials, storage conditions, time spent storing, humidity, physical damage, and temperature. Ideally, you should keep the battery in a controlled climate and dry area with no physical damage or degrading. It is essential to purchase only high quality batteries from reliable retailers because low-quality batteries could have lower capacities in mAh and could end up dying prematurely.

Coin cells made of lithium are available from most major battery manufacturers and can be found at the majority of large retail stores. Among the most popular are Energizer Panasonic and Duracell. These brands are renowned for their commitment to the highest standards of security and reliability. If you have any doubts regarding the authenticity of a certain battery or its packaging, it is recommended to contact the manufacturer directly for more details.

When using a CR2032, it is important to remember that the battery has a positive terminal and a negative terminal. The positive terminal is marked by a dot on the top of the battery, and the negative terminal is identified by an outline across the base. If you place the battery into a device the wrong way the device could get damaged or even an ignition risk.

There is no socket or plug to connect the CR2032 battery. A CR2032 connects to a device through an aluminum tab. The tab must be squeezed to connect the battery. This can only be done by hand. Installing a CR2032 into a device such as a smoke detector or sensor requires the tab contacts on the metal be in the proper position. If they aren't the device will not work or you might have inconsistent results. Luckily, the instructions for the majority of smoke detectors and sensors will provide diagrams of the proper way to place the battery. If you're unable to locate the wiring diagram for your specific device, it's recommended to watch an instructional video that demonstrates how to insert the battery.