There are two types of car key fobs. One is the original key with remote control lock, the other is the remote control anti-theft device installed later. The two keyfobs are very different.

Most of the original key fobs are unidirectional remote controls, so the signal transmission power is available, because it is not consumed by default. If you do not press the original key fob button, it will generally be more durable. Most of these buttons use button batteries, or lithium manganese batteries. The button battery has a low discharge current, but it's enough for the car key, so basically it needs a longer life. In general, it can be used for many years. It depends on how often the battery is used.

By default, when the second half of the remote key with anti-theft function is installed, the remote control is closed or if someone has a remote lock, it can send a signal to steal. During the period of controlling the vehicle to lock, the motor car can also provide the vehicle key in the same time with two-way alarm host, and it will send the message with sound and light vibration signals. This increases the control range of the remote control, and requires constant standby power consumption and faster battery discharge. As a result, most remote controls are rechargeable batteries, which are charged once a week.

What is the performance when the battery runs out?

It will cause electricity shortage. The original key has caused some car dashboard to power up. So don't install the key fob later. When remote control such as battery power remote control, remote control key characters distinguish response, dim operation light and remote control, it is necessary to determine the battery power, because even if the car key does not affect the car, we can use the mechanical key. Each original key has a mechanical key, some of which are folded, some of which are hidden, all on the car key.

Here we remind you to pay attention to the remote control, because if it is not installed, the remote control of the original car is installed on the driver's door with anti-theft, remote key and five motor locks of different lines. As long as you can use the mechanical key lock and unlock the motor contact, the remote host can close the vehicle signal and effect. You can still use the mechanical key to unlock the driver's side door, but in the wrong position, the host cannot receive the remote anti-theft lock signal, or if other door status is locked, this time, the function rich system is interrupted. The fuel pump relay does not start the vehicle even if there is a key. Just charge the remote control to unlock it.

How to replace the battery with the car key?

It's very simple. We need to open the car key first. We need to remove some car keys with one screw, and then open and pull out the key cover. If you don't have screws, you can open them directly.

The above is how to change the button battery of the car key fob. I hope it can help you and you can follow our website to learn more!