Changing the Battery in Your BMW Car Key Fob

Many BMWs require a key fob with a sleek, slant-shaped battery. This kind of battery is often readily found at hardware stores, or even big-box stores.

The battery can be changed at the comfort of your own home. Tulley BMW of Nashua will guide you through the procedure, so that you can be back on the Johns Creek roads in no time.

How to Replace a Battery

Many BMW owners aren't aware that they could need to replace the keyfob's battery at some time. Fortunately, this is among the most simple DIY car maintenance tasks that you can do yourself. It should take you no more than a few minutes to change the battery and the cost of replacement is very low. The battery can be found at local convenience stores and auto parts centers for less that ten dollars.

In most cases the BMW key fob is powered by a CR2032 battery that is also called a "watch battery." Remove the cover for the key fob and then carefully insert the new battery gently. Be aware of the orientation. The new battery should be installed in a manner that the plus and negative symbols are facing the same way as the previous battery. Once the new battery has been put installed, just put the cover of the key fob back in place and you'll be able to drive your BMW around Decatur and Johns Creek again.

Some older BMW models have a different key type that is a metal key that you insert into the ignition. The batteries inside these keys will also degrade over time, and you'll need to replace them to get your vehicle running. This kind of battery is rechargeable, and replacing 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 is still very simple. First, you'll have to remove the metal key from the fob, then, you'll need to open the access port on the side of the key fob. After you've opened the access port, you can make use of a flat screwdriver to split the two halves of the key fob. Once the key fob has been separated into two halves you can easily take it off and replace the battery that is dead. After you've replaced the battery, you can simply snap the two halves of the key fob together again. Contact us today if require assistance or have any concerns about replacing the battery in your BMW Key Fob. Our team is always available to assist. We are looking forward to helping you with your automotive needs.

CR2450 Battery

You may not realize it however, your BMW key fob uses an exclusive battery to function effectively. The CR2450 is a 3-volt lithium-ion coin cell battery. It powers the key fob's various functions, such as remote locking unlocking, ComfortAccess, and even remote starting your vehicle! These functions require a CR2450 coin cell battery, which is slightly larger than its CR2032 equivalent.

These batteries are available in all places that sell regular lithium batteries with a voltage of 3 volts like supermarkets and gas stations. They typically cost $7 to $9 per four-pack, however an accurate price comparison could provide cheaper alternatives from lesser-known brands.

Change the battery in your BMW key fob is a simple procedure that doesn't require additional programming or reprogrammed resyncing to your vehicle. Simply remove the valet key from the fob, press an elongated tab inside the opening, and then pull out the existing battery. The new battery should be placed in exactly the same way and ensure that the positive side is facing towards the upward direction. Reassemble the fob.

After you've replaced the battery in your bmw spare key fob key fob, it's important to test it to ensure it locks and unlocks the car properly and also works with all its other expected functions. You can, for instance press each button on the fob to verify that they lock, turn on or off the trunk. Once you're certain that everything works as you expected you can put the fob on and go!

The key fob also has an electronic chip that stores the security codes and programs required to connect with your BMW. The information is powered by the key fob's battery However, the chip is designed to store the information even if the battery is removed. This is one of the main reasons it's important to change the battery quickly when it starts to wear out.

BMW key fobs are powered by sleek CR2032 batteries. This battery is common in electronic devices and is easily replaced when required. For models that make use of the Comfort Access and remote start features however, a bigger battery CR2450 is required. This is a stronger battery that is specifically designed for these high-drain applications and can be purchased from a wide range of retailers. These batteries have a nominal capacity of 600-620 mAh and can last for 10 years if stored properly. These batteries are great for high-drain situations that require the highest the performance and endurance. For the best results, you should go with a trusted brand your replacement battery. This will ensure that the new battery is high-quality and will hold up to the rigors of daily use.

CR2032 Battery

A CR2032 Battery is a popular kind of coin cell battery utilized in a variety of electronic devices like key fobs, remote controls and fitness and medical trackers. This kind of battery is also used in heart rate monitors from companies like Polar, Garmin and Wahoo Fitness. It is also widely found in bike parts, including road shifters by SRAM and FSA as well as certain headlights.

A CR2032 makes use of lithium chemistry and has a round shape with a diameter and a height of 20 and 32 millimeters. It has a low self-discharge, which means it can remain dormant without losing much charge. This low self-discharge and the ability to hold a charge in extreme temperatures make this an extremely popular battery for use in electronics.

Battery life depends on a myriad of factors including material quality storage conditions and storage time and physical damage, humidity and temperature. Ideal storage is in a climate-controlled, dry space with no physical damage. It is important to only purchase the best quality batteries from reputable retailers. Low-quality batteries may have lower mAh capacity and will eventually die.

Coin cells made of lithium are available from the majority of major battery manufacturers and can be found in a wide range of retail stores. Among the most popular are Energizer Panasonic and Duracell. These brands are known to adhere to the most stringent safety and reliability standards. If you have questions regarding the authenticity of a certain battery or its packaging, it's recommended to contact the manufacturer directly for more information.

One of the most important points to remember when using a CR2032 battery is that it has both a positive and negative terminal. The positive terminal is identified by a dot at the top of the battery, and the negative terminal is marked with an arc across the base. If the battery is inserted into a device with the wrong side facing upwards it could cause damage to the device or create an explosion.

As opposed to other kinds of batteries, there's no plug or socket to connect to it. A CR2032 connects to a device via an aluminum tab. The tab has to be pulled down to connect the battery, and can only be done so by hand. If you're putting the CR2032 battery into a device such as a sensor reprogrammed or smoke detector, be sure that the metal tab contacts are in the proper position. If not the device will not work or you could encounter inconsistent results. Luckily, the instructions for most smoke detectors as well as sensors provide diagrams showing which way to place the battery. If you are unable to find an electrical diagram for your particular device, it's a good idea to watch an instructional video on the proper way to install the battery.