Description

Model 1：Internal Resistance Meter +test rack

Model 2：Internal Resistance Meter +test rack+test pen

Model 3：Internal Resistance Meter +test rack+test pen+clip

Model 4：Internal Resistance Meter +rack ，Pen，clip，Kelvin clip

      The intelligent battery internal resistance tester is a fast and practical battery cell and battery internal resistance voltage tester developed and produced for the popular 18650 cylindrical cells, polymer cells, and square cells. The instrument has the advantages of simple and intuitive operation, fast test speed and high precision. It can quickly and accurately measure the internal resistance and voltage of the battery cell, which provides a reliable basis for us to select the battery cell and match the mobile power battery cell.

       The battery internal resistance tester is a special instrument used to measure the internal resistance of the battery and the degree of damage of the battery's acidified film. The instrument applies a 1KHz AC signal to the measured object (passive object, active object), obtains the internal resistance by measuring its AC voltage drop, and judges whether the cell and battery are normal or not by the size of the internal resistance value. As well as the pros and cons of cell and battery performance (it is different from the principle of multimeter measuring resistance, the value it measures is milliohm level, while the value measured by multimeter is ohm level; and the multimeter can only measure the resistance value of objects without power supply , and the internal resistance meter can not only measure the resistance of objects without power, but also the resistance of objects with power, so the two should not be equal) Generally speaking, the smaller the resistance, the better the performance of the battery. Therefore, the method of measuring the battery by using the internal resistance is a good method with high speed and high reliability.

① Simultaneous digital display of the internal resistance and voltage parameters of the object under test (both test pens and test racks can be used)

②Digital display upper and lower limits, intuitive and clear.

③ There is a choice of intelligent alarm test or common test mode. (The normal test only displays the voltage and internal resistance parameters, and the intelligent test has an intelligent alarm system. The voltage and internal resistance range of the battery can be set. If the measurement result exceeds the set range, the microcomputer system can automatically alarm to realize the test without manual judgment.)

④Program intelligence: This instrument is equipped with a microcomputer system, controlled by a single chip, and adopts an intelligent program.

⑤Strict selection of materials: All materials are imported components, using imported 254310 integrated tubes, with fast operation speed and high reliability.

Scope of application:

①Single-cell 18650 battery, 21700 battery and other cylindrical lithium batteries, cadmium nickel, metal hydride nickel battery polymer batteries used in mobile phones

② Lead-acid batteries and maintenance-free batteries

③ Scientific research units and manufacturers of various battery research and testing

Kind tips!

Necessity of cell pairing: If multiple cells are used in series or parallel, first of all, it is necessary to ensure that the parameters such as capacity, internal resistance, and voltage of each cell are basically the same. If the capacity of each battery cell is very different, it will cause the problem of sufficient power in a certain section of the mobile power supply and insufficient power in a certain section, resulting in mutual charge and discharge between the cells and internal consumption, which seriously affects the output performance and use time of the mobile power supply; and If the internal resistance and voltage are quite different, it is like using a wooden bucket to hold water. How much water can be filled depends on the shortest piece of wood.

Therefore, the capacity, internal resistance and voltage of the battery cells should be tested before production, and the battery cells with basically the same basic parameters should be put together for use in series and parallel. electrical energy.