Changing the Battery in Your BMW Car Key Fob

Many BMWs require that the key fob have a slant-shaped, sleek battery. This type of battery is often readily accessible at hardware stores or even at big-box stores.

Changing this battery is a simple task and can be accomplished at the comfort of your home. Tulley BMW of Nashua will guide you through the procedure, so that you can return to the Johns Creek roads in no time.

How to change a battery

Many BMW owners don't know that they might have to replace the battery in their keyfob at some time. It's a good thing, as this is among the easiest car maintenance tasks that you can do yourself. The battery replacement should take just a few minutes and is also very affordable. The battery can be found at a variety of local convenience stores and parts centers for less than ten dollars.

The BMW key fob is normally powered by a CR2032 or a "watch" battery. Take off the cover on the key fob and then gently place the new battery. Pay attention to the orientation. The new battery must be installed in a manner that the plus and negative symbols are facing the same direction as the previous battery. Once the new battery has been put installed, just put the cover for the key fob back on and you'll be able to drive your BMW around Decatur and Johns Creek again.

Certain older BMW models use an alternative type of key, which features the physical key made of metal that fits into the ignition. The batteries in these keys will also degrade with time, so you'll need to replace them to get your vehicle started. This type of rechargeable battery requires you to cut a tiny piece of the key fob in order to replace it.

This type of BMW key requires an entirely different procedure, but it's still very simple. You'll first need to take off the metal fob key and then open the port on the other side of the key. After you've opened the access port, you can make use of a flat screwdriver to split the two halves of the key fob. After the two halves have been separated, you can easily remove the dead battery and 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 need assistance or have questions regarding how to replace the battery in your BMW Key Fob. Our team is always ready to help. We are looking forward to helping you with your car needs.

CR2450 Battery

It's possible you didn't even know that the BMW key fob requires a special battery to work 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 provided by the CR2450 battery that is slightly larger in diameter than its CR2032 counterpart.

These batteries are available at supermarkets and gas station, as well as other places that sell lithium batteries with 3 volts. They typically cost $7 to $9 for a package of four batteries, but careful price comparison shopping could provide cheaper alternatives from lesser-known brands.

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


It is important to test your BMW keyfob after you've replaced its battery to ensure it works as expected. genuine bmw replacement key uk cost includes locking and unlocking the car and all other functions. For example, you can try pressing each of the buttons on the fob to ensure they turn on, lock, or pop the trunk. After you're confident that everything works as expected then put the fob in place and go!

The key fob contains a chip which stores the security codes and programs needed to communicate with your BMW. The battery that powers the key fob is responsible for this information, however the chip will keep it even if you remove the battery. This is why it's so important to replace the battery at the time it begins to wear out.

The vast majority of BMW models use the sleek CR2032 battery to power their key fobs. This is a typical battery type that's found in all electronics, and it's easy to replace if you need to. A larger CR2450 is required for models with remote start or Comfort Access features. This is a stronger battery, specially made for high-drain use. It can be purchased at various stores. They have a nominal capacity of 600-620 mAh, and they can last for 10 years if stored properly. They are an excellent option for any application where you're looking to maximize longevity and performance. For the best results, stick with a trusted brand your replacement battery. This will ensure that your new battery is of high-quality and will stand up to the rigors of daily use.

CR2032 Battery

A C2032 Battery is a popular kind of coin cell battery utilized in a variety of electronic devices, including remote controls, key fobs as well as fitness and medical trackers. This type of battery is also found in heart rate monitors produced by companies such as Polar, Garmin, and Wahoo Fitness. It is also widely found in bicycle components, such as road shifters manufactured by SRAM and FSA and certain headlights.

Like the name suggests, a CR2032 battery uses lithium chemistry and is a round shape with a diameter of 20 millimeters and a height of 32 millimeters. It has a low self-discharge meaning it can be left in storage for a long time without losing any charge. This battery is a favorite for electronics because of its low self-discharge as well as the capacity to keep a charge even in extreme temperatures.

Battery life depends on a variety of variables including the quality of the material, storage conditions and storage time, 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 reputable retailers as low-quality batteries could have lower capacities in mAh and can be prematurely depleted.

Coin cells made of lithium are available from most major battery manufacturers and can be found in a wide range of retail stores. Some of the most popular include Energizer, Panasonic and Duracell. These brands are reputed to adhere to the highest standards of safety and reliability. If you have any questions regarding the authenticity of a specific battery or its packaging, it is best to contact the manufacturer directly for more details.

One of the most important things to remember when using a CR2032 battery is that it has two terminals: positive and negative. The positive terminal is identified by a dot at the top of the battery, and the negative terminal is marked with an outline across the base. If the battery is placed into a device with the wrong side facing up it could cause damage to the device or even cause an explosion.

There is no socket or plug to connect the CR2032 battery. Instead, a CR2032 battery is connected to the device through a metal tab. This tab must be pulled down to connect the battery and can only be done so by hand. Installing a CR2032 into a device like a smoke detector or sensor requires the tab contacts made of metal are in the correct position. The device may not work or you could experience inconsistent results. The instructions for all smoke sensors and detectors include diagrams that indicate how to place the batteries. If you're unable to locate a wiring diagram for your particular device, it's recommended to watch an instructional video on how to install the battery.