Car Key Battery Replacement

If your car key fob takes longer than usual to respond to pressing the buttons, it’s probably time to replace its battery. This is a simple and straightforward task that any person can do themselves.

The first step is to identify your key type. This can be done by checking the owner’s manual or looking at the old battery for a format number.

Tools

A key fob can lose its functionality over time, and this is often the result of a dead battery. Fortunately, replacing the car key battery is an easy task that doesn’t require any specialized tools or a trip to the dealership. All you need is a replacement battery, a screwdriver that’s flat and a little bit bigger than the fob’s original one, and a few steps to open it up and remove the old battery.

Start by inspecting the key fob’s edges, looking for a small slot or seam where it splits into two halves. Once you find the opening, gently pry it apart using a flat blade screwdriver. Be careful not to apply too much pressure, so you don’t damage the key fob. Once the key is open, locate the battery, which may be placed in a holder or clipped in place. If the old battery is still in place, note its orientation so you can insert the new one correctly.

Once you’ve removed the old battery and replaced it with a fresh one, reopen the key fob, and reclose the battery compartment. Finally, test the key to ensure that it functions properly. If not, reopen the compartment and check again for the correct battery orientation. Repeat the process as needed until the key fob works as intended.

Opening the Battery Compartment

A common issue with key fobs is that they don’t work after a certain period of time. While shaking the key or tapping it against one’s hand may offer some temporary relief, the most likely cause of this problem is a depleted battery. Thankfully, this is a quick and easy fix that can be completed on one’s own.

To start, it is essential to determine which type of battery your key fob requires. Typically, it will take a coin-style battery that is found at general stores and most home improvement car key battery replacement centers. It is a good idea to consult the owner’s manual for your vehicle or conduct an online search in order to find the correct battery model.

Once you have the correct battery, locate the opening to the battery compartment and open it by applying some gentle pressure. If the battery compartment has clips, use a non-metallic tool to lift them up. Then, remove the old battery and note its orientation in order to install the new one correctly.

The new battery will look similar to the old one and will have a plus and minus sign. Once you have inserted it, snap the key fob halves back together and test all of the buttons. If the fob works as it should, you are now ready to enjoy your car’s full functionality!

Replacing the Battery

Car key fobs, whether built into your keys or attached to them as separate remote devices with buttons for locking and starting your vehicle, are powered by batteries. Like any battery, they eventually run out of juice and will need to be replaced. Luckily, replacing the battery in your car key fob doesn’t require specialized skills or tools, and can be done quickly and cheaply at home.

Start by identifying the type of battery you need for your key fob. You can do this by looking at the old one, checking the owner’s manual, or searching online for details on your specific key. After that, purchase a replacement battery that is the same size. Make sure it has the same chemistry and voltage as well, to ensure seamless operation.

Once you have the new battery, open your key fob at its seam by using a non-metallic tool such as a finger or the edge of a flat-head screwdriver. Gently remove the old battery, and insert the new one with care. Ensure that the positive side faces up and matches the markings on the fob holder or clip. Finally, reassemble the key fob and test the buttons to make sure everything is working properly.

If you’re experiencing reduced clicking distance or need to press the buttons multiple times to get a response, it may be time for a new battery. Your local Blain’s Farm & Fleet automotive department can help you with car key battery replacement and other auto-related needs.

Testing the Key

Car key fobs have an important job to do, but like anything reliant on a battery-powered mechanism, they can start to wear out. Fortunately, there are several obvious warning signs that it’s time to swap out the fob battery, such as a noticeable delay between pressing buttons or a loss of range.

Luckily, replacing a car key fob battery doesn’t require specialized tools or a trip to the dealership. All you need is a small battery for my car flat-head screwdriver, a replacement battery (ideally the same type as the original) and a few moments of your time. Before getting started, make sure you’ve identified the proper battery type and size for your vehicle based on your owner’s manual or an online search.

Once you’ve popped open the battery compartment, remove the old battery with care. Insert the new battery, making sure to align it correctly with the – and + markings. Then, carefully close the two fob halves and test the key to ensure functionality. Congratulations – you’ve successfully replaced your car key battery.