SPEEDY AND MULTIFUNCTIONAL FESTER FOR SILVER AND ZINC BATTERY

The utility model relates to a speedy and multifunctional tester for a silver and zinc button cell, which is used for measuring the capacity, the internal resistance and the terminal voltage of the button cell, comprising a test head, a selecting resistor, a time control circuit, a sampling and holding circuit, a differential amplifier, reference voltage, a comparator, an indicating instrument and a display instrument. The energy consumption of the botton cell is very little when being measured by the multifunctional tester for a silver and zinc button cell. A time-base circuit ins the time control circuit is an integrated circuit of a quartz crystal oscillation clock, and the sampling and holding circuit an integrated sampling and holding circuit which is provided with a large value capacitor. The utility model has the advantages of high measuring precision, simple structure and low cost. The multifunctional tester for a silver and zinc button cell is provided with the selecting resistor, so the multifunctional tester for a silver and zinc button cell can indicate and measure button cells with various specifications.