Application of super capacitor in vehicle POS machine

Clock power supply for car POS machine: The clock chip power supply battery must be a rechargeable method. The service life of a general button battery is two years, because the power in the battery gradually decays with the use time. When the power decays to a certain extent, it will affect the accuracy of the timing, and even cause the clock data to be lost and return to the initial state.

Because the validity period is written in the IC card, due to the error of the POS machine clock, the card will be locked, which will bring some inconvenience to the cardholder. In severe cases, it will interfere with the normal operation of the card issuing part.

In addition, the workload of replacing the clock battery of the POS machine every two years is also very large. If you choose a rechargeable clock power supply and choose a super capacitor (1.5F), the advantages are: long use time, and the same life as the POS. The POS machine does not need to be replaced during the service life cycle, and the output voltage and current are stable to ensure the accurate clock and the normal operation of the vehicle-mounted POS machine.