Changing the Battery in Your BMW Car Key Fob

Many BMWs require that the key fob be equipped with a sleek, slant-shaped battery. This type of battery is usually available at hardware stores or 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, so that you can return to the Johns Creek roads in no time.

How to replace a battery

Many BMW owners don't know that they could have to replace the battery in their key fobs at some point during their ownership. This is one of the easiest DIY tasks for car maintenance that you can perform yourself. The replacement of your battery will only take a few moments, and it is inexpensive. The battery is available at local convenience stores and auto parts shops for less than ten dollars.

The BMW key fob is typically powered by a CR2032 or a "watch" battery. Remove the cover on the key fob and gently place the new battery. Be aware of the orientation. The new battery needs to be installed in a manner that the plus and minus symbols are facing the same way as the old battery. Once the new battery is installed, just put the cover of the key fob back on and you'll be able to drive your BMW around Decatur and Johns Creek again.


Some older BMW models have a distinct key type, which is a metal key that you insert into the ignition. These keys can also die in time, and you will need to change the battery to allow your vehicle to start. This type of battery can be recharged and recharging it requires cutting a small portion of the key fob therefore be cautious when you are performing this task.

This type of BMW key has a slightly different procedure, but it is still very simple. You'll first have to remove the key fob made of metal and then open the port on the side of the key. After you have opened the access port then use a screwdriver with a flat head to cut the two halves off of the fob. After the two halves have been separated, you are able to remove the dead battery and then insert the new one. Once you've replaced the battery, you can simply snap the two halves of the key fob together again. If you need assistance or have additional questions about how to change the battery on your BMW key fob, call us now! Our team is always available to help. We look forward to assisting you with your car needs.

Battery CR2450

You may not realize it however, your BMW key fob requires an exclusive battery to function properly. The CR2450 battery is a 3-volt lithium coin cell battery that powers the many different functions of your key fob, including remote locking and unlocking, Comfort Access functionality, and even remotely starting your car! These functions require the CR2450 coin cell battery which is slightly larger than its CR2032 equivalent.

You can find these batteries in all places that sell regular lithium batteries of 3 volts like supermarkets and gas stations. They typically cost $7 to $9 for a set of four batteries, however an accurate price comparison may reveal cheaper options from lesser-known brands.

It's easy to change the battery in your BMW keyfob. It's not necessary to re-program or re-synchronize your vehicle. Remove the valet key, remove the battery and push the tab. Place a brand new battery in the same manner, making sure that the positive side is facing upwards, and rebuild the fob.

After you've replaced the battery in your BMW key fob, you must test it to make sure it locks and unlocks the car correctly and works with all of its other expected functions. For instance, you can, press each button on the fob to verify that they lock, turn on or remove the trunk. Once everything is functioning as expected, you can put the fob back together and go on your way!

The key fob also has an embedded chip that contains the security codes and program necessary to communicate with your BMW. The battery in the key fob powers this information, but the chip can retain 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.

BMW key fobs run on sleek CR2032 batteries. The battery is commonly used in electronic devices and can be easily replaced when needed. For models that make use of the remote start and Comfort Access features however, a larger CR2450 battery is required. This is a more powerful battery that is specifically designed for high-drain applications and can be bought from a wide range of retailers. These batteries can last up to 10 Years when maintained properly. They come with an average power of 600-620mAh. They are a good choice for any high-drain task where you want to maximize durability and performance. For the best results, you should go with a reputable brand for your replacement battery. This will ensure that the new battery will be high-quality, and will withstand the demands of daily use.

CR2032 Battery

A CR2032 Battery is an extremely common kind of coin cell battery that is used in a variety of electronic devices like remote controls, key fobs and medical and fitness trackers. This type of battery can also be found in heart rate monitors made 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 as well as certain headlights.

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

Battery storage life can depend on a variety of variables including the quality of the material, storage conditions such as storage time as well as humidity, physical damage and temperature. The ideal storage space is an air-conditioned, dry area with no physical damage. It is crucial to only purchase high-quality batteries from reliable retailers. Batteries that are not of the highest quality may have lower mAh capacity and will eventually die.

Major battery manufacturers sell lithium coin cells. They are also sold in many large retail stores. Some of the most sought-after brands include Energizer, Panasonic and Duracell. These brands are known to adhere to the highest standards of safety and reliability. If you are not sure about the authenticity of the battery or its packaging it is recommended to contact the manufacturer for more information.

When using a CR2032 It is crucial to be aware that the battery has a positive terminal and the negative terminal. The positive terminal is indicated by a dot on top of the battery and the negative terminal is marked with an outline across the base. If you put the battery into a device the incorrect way, the device could be damaged or even become an ignition risk.

In contrast to other types of batteries, there is no plug or socket to connect it. A CR2032 connects to a device through a metal tab. bmw key replacement near me needs to be pulled down to connect the battery and is only done by hand. If you're installing a CR2032 battery into a device like a smoke detector or sensor, be sure that the metal tab contacts are in the correct place. The device may not work or give inconsistent results. Fortunately, informative post for most smoke detectors as well as sensors provide diagrams showing which method to place the battery. If you are unable to find an electrical diagram for your particular device it's an excellent idea to look up an instructional video that demonstrates the proper way to install the battery.