Do Not Buy Into These "Trends" Concerning Bmw Car Key Changing the Battery in Your BMW Car Key Fob

Many BMWs require a key fob that has an elegant, slant-shaped, sleek battery. This kind of battery is available in a variety of hardware stores and even big-box retailers.

Change the battery is a straightforward process and can be accomplished in the comfort of your own home. Tulley BMW Nashua can guide you through the process so you can get back on Johns Creek roads quickly.

How do you replace a battery

Many BMW drivers don't realize that they could need to change the battery on their key fob at some point during ownership. This is one of the easiest DIY car maintenance tasks that you can perform yourself. It shouldn't take more than just a few minutes to replace the battery and the cost for the replacement is minimal. The battery can be found at local convenience stores and auto parts stores for less that ten dollars.

In most instances, the BMW key fob uses the CR2032 battery and is often known as a "watch battery." Take off the cover of the key fob, and then carefully insert the new battery gently. Make sure you pay close attention to the orientation of the new battery, since it has to be installed with the plus and minus indicators in the same direction as the old one. Once the new battery is in place, simply put the cover of the key fob back on, 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 over time, requiring you to change the battery in order for your vehicle to start. This type of battery is rechargeable, and replacing it requires cutting a small part of the key fob therefore be cautious when performing this task.

This kind of BMW key requires an entirely different procedure, but it's nonetheless very easy. You'll first need to remove the metal fob key and then open the port on the side of the key. Once you've opened the access port then use a screwdriver with a flat head to cut the two halves off of the fob. Once the key fob is split in two parts it is easy to remove and replace the battery that has died. Snap the two halves back together after replacing the battery. Contact us today if require assistance or have any questions about how to replace the battery in your BMW Key Fob. Our team is always happy to assist. We look forward to assisting you with your automotive requirements.

CR2450 Battery

You may not realize it that your BMW key fob requires a specific battery in order to function effectively. The CR2450 is a 3-volt lithium-ion coin cell battery. It powers the key fob's numerous functions, such as remote locking unlocking, ComfortAccess and even remote start of your vehicle! These features require a CR2450 coin cell battery which is slightly larger than its CR2032 equivalent.

These batteries are available at supermarkets and gas station, as well as other stores which sell lithium batteries of 3 volts. They typically cost between $7 and $9 for a four-pack, but an accurate price comparison could reveal lower-cost alternatives from lesser-known brands.


Changing the battery in your BMW key fob is a simple process that doesn't require any additional programming or resyncing to your vehicle. Simply remove the valet key from the fob, then press a small tab in the opening, and then pull out the existing battery. Install a new battery the same manner, making sure that the positive side is facing upwards and then put it back together.

It is important to test your BMW keyfob after you've replaced its battery to ensure that it is working as you expect it to. This includes locking and unlocking the car and other functions. For example, you can try pressing all the buttons on the fob to ensure they turn on, lock or open the trunk. Once you're sure that everything is functioning as you expected, put the fob together and go!

The key fob also has an embedded chip that contains the security codes and programming required to connect with your BMW. The key fob battery powers this information, but the chip will keep it even after you remove the battery. This is why it's important to replace the battery when it begins to wear out.

The vast majority of BMW models utilize the sleek CR2032 battery for their key fobs. This is a common battery type that's found in most electronics, and it's easy to replace whenever you need to. A larger CR2450 is needed for models that utilize the remote start or Comfort Access features. This is a stronger battery that's specially designed for these high-drain applications and can be purchased from a variety of stores. These batteries can last up to 10 years when maintained properly. They have an average power of 600-620mAh. They are a good option for any application where you want to maximize longevity and performance. For the best results, you should go with a trusted brand your replacement battery. This will ensure that the new battery is of the highest quality and will last through the demands of daily use.

CR2032 Battery

A CR2032 Battery is a common type of coin cell battery that is used in a variety of electronic devices, including key fobs, remote controls and medical and fitness 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 used in bike components such as road shifters by SRAM and FSA, as well as some headlights.

A CR2032 makes use of lithium chemistry and is a round shape with a diameter and a height of between 20 and 32 millimeters. It has a low self-discharge, so it can be left in dormancy for a long time without losing too much of its charge. bmw key replacement cost -discharge rate and the capacity to hold a charge in extreme temperatures make this a very popular battery for electronic devices.

Battery life depends on many factors, including the materials storage conditions, the time spent storing, physical damage, humidity and temperature. Ideally, you want to keep the battery in a controlled climate and dry location that is free of physical damage or degrading. It is crucial to purchase only the best quality batteries from reliable retailers because lower quality batteries may have lower capacities in mAh and may die prematurely.

Most major battery makers offer lithium coin cells. They are also available in most large retail stores. The most well-known are Energizer Panasonic and Duracell. These brands are known to adhere to the most stringent safety and reliability standards. If you are unsure about the authenticity of the battery or the packaging, it is best to ask the manufacturer for more details.

One of the most important things to keep in mind when using a CR2032 battery is that it has a positive and negative terminal. The positive terminal is indicated by a dot at the top of the battery, and the negative is marked by a line across the base. If the battery is inserted into an item with the wrong side facing up it could cause damage to the device or create a fire hazard.

As opposed to other kinds of batteries, there is no socket or plug to connect it. Instead the CR2032 battery is connected to the device via an aluminum tab. The tab has to be pulled down to connect the battery, and can only be done so by hand. The installation of a CR2032 into a device, such as a smoke detector or sensor requires the metal tab contacts be in the proper position. If they aren't the device will not work or you might experience inconsistent results. Fortunately, the manuals for most smoke detectors and sensors will provide diagrams of the proper way to insert the battery. If you can't find an illustration for your particular device, it is recommended to watch a video that demonstrates the proper way to insert the batteries.