Where to Buy Car Key Batteries?

[Kim]

For car key batteries, you can choose to go to a car service center or an auto parts market. Different car key batteries have different models, so it's important to check carefully when purchasing, as the battery model is crucial. Here is some information about car keys: 1. A car key consists of a transmitter switch, transmitter antenna (keypad), integrated circuit, etc. 2. The working principle is: it contains an identification code storage circuit and an amplitude modulation circuit, with a button-type lithium battery installed on the opposite side of the circuit. Extended content: The receiver refers to: after the transmitter uses shortwave modulation to send the identification code, it is received by the car's shortwave antenna and enters the shortwave high-frequency amplification processor of the receiver's electronic control unit through a distributor for demodulation, and then compared with the demodulator's identification code.