Is the car key battery a magnetic fob?

: Although the key uses RF wireless signals, which will not be associated with magnetic fields. But the magnetic field will make the electronic components magnetized, so that the resonant frequency of RF frequency deviation, if the frequency deviation is serious, it will produce the two sides of the signal can not be received. There are two main types of car keys, mechanical keys and remote keys, all of which can be fitted and replaced separately.

Remote key replacement only needs to be matched with the vehicle's signal and does not require replacement of the lock.

Replacement of the mechanical key, you need to replace the whole car locks, the cost is relatively high, the price of different cars for different, from a few thousand dollars to tens of thousands of dollars are there.

The car key is not a confidential accessory, and the inside is not complicated at all, the interior is equipped with electronic components, the transmitter in the key, the wireless receiver is set in the car, the battery inside is our common button battery, you can do it yourself to replace, except that everyone's power is limited to the ability to dismantle and install the installation is not, or improperly operated will allow the circuit board to be damaged, the owners of their own weighing.