As we all know, the battery capacity determines the discharge time, especially for vehicles with keyless entry and start-up function, because the remote control and the machine are always sensing each other in all the process of using the vehicle, so compared with the general kind of mechanical key which only controls the lock in the remote control, keyless start-up remote control battery consumption is faster. The discharge time of the original keyless remote control battery is about one and a half to two years on average. My two remote control batteries, one used for one year and eight months, and the other for nearly two years, have been replaced with new remote control batteries. The failure of the remote control battery is easy to judge, press the remote control arbitrary key at will, the remote control top indicator light (red) does not flash; press and unlock the door or lock the door.
If you go to the four S to change the remote control battery, it is estimated that it will cost dozens of oceans or even hundreds of dollars, and it can be done with five yuan by yourself, and the operation is also very simple. The power consumption of the remote control without key entry and start-up is relatively high, which is determined by its working principle. Here to explore the song as an example, many cars with the same working principle are similar, can be referred to.
Today is the last day of 2020. Sharing an illustration of do-it-yourself replacement of remote control batteries is a souvenir at the end of the year.
Don’t panic if you can’t open the door or lock the car by remote control. Press any button of the remote control, the red light on the top of the remote control does not flash, that is, the remote control battery is exhausted.
Behind the driver’s side handle, there is a decorative cover that can be removed. When the car door cannot be opened by remote control, it can be removed to reveal the mechanical lock core.
Above, there is a small slot under the decorative cover behind the door handle. Reach in with a mechanical key and carefully pry open the decorative cover. It is best to pad some soft material where it comes into contact with the paint.
On the lower left is the handle decoration cover pried down. We can see that the cover is positioned by the upper, lower and rear three card slots, and when it is put back into place, it is aimed at the position.
After the decorative cover is pried open, you can see the mechanical lock core, which is why the remote control retains the folding mechanical key.
When inserting the mechanical key, this side of the button should be on top, otherwise the mechanical key can not be inserted in place, and the car door can be opened and locked by turning left or right.
If you need to start the ignition, stick the remote control on the right side of the steering column, where the wireless remote control key is marked, step on the brake and press the start button to ignite normally.
When it comes to the replacement of the battery, there is almost no need to use any auxiliary tools for the song remote control key. Other similar remote control can be referred to.
Open the mechanical key folded by the remote control, the key slot can be broken by hand, do not use brute force in the whole process, and the battery cover is also fixed by several clips.
The VW sign of the remote control is facing up. Open the battery lid and you can see the remote control battery. The battery model of Tanguo is CR2025 and the original battery is Panasonic battery.
There is a gap in the lower left of the arc of the battery slot, from which the battery can be easily pried out. Small screwdrivers, mobile phone clip pins and bending pins can be used.
After opening the battery cover, the cover is fixed by four positioning cards, similar to the installation of the battery cover of the TV remote control. There are battery types and positive marks in the lid.
The remote control is originally equipped with Panasonic CR2025 with a voltage of 3 volts. This side of the model is a positive pole, and the back negative surface is a textured surface.
Now the car remote control is very exquisite, the remote control of removing the battery is like this, and the metal seat under the circular groove is the negative contact of the battery base.
The remote control battery model of Tan GE is CR2025,3V. As long as the battery of this specification can be substituted, in fact, the original Panasonic battery is also estimated to be a contract product.
The original Panasonic battery, the substitute Nanfu battery, model CR2025, voltage 3V, the same voltage, the same diameter, the same thickness, no problem in use.
After the correct replacement, the battery cover is positioned according to the original position, and the plastic positioning card is heard to click gently. Even if it is finished, it is very simple, isn’t it?
Button batteries can be bought at convenience stores and stationery stores for about five yuan. Online shopping seems cheaper, but there are some factors that are difficult to control.
The new battery is easy to install, this side of the word is the positive pole, face up, insert it into the flat slot, and then press it gently to flatten the card.
After the battery is installed, do not rush to cover the battery cover, first press any button of the remote control, the red light at the top of the remote control flashes, it means the replacement is correct.
Finally, add that when using a mechanical key to lock the door, the electrically folded rearview mirror will not be taken back. At this time, the rearview mirror will not be locked. If you can’t open it, you can rest assured to change the battery. It is relatively dry in winter, the car is a little dirty outside, please ignore it.
BurkeHenry 
3 
September 5, 2024 
