How to test battery discharge

Batteries are widely used in places where batteries are needed, such as electric vehicles, electric golf carts, etc. If the battery cannot be discharged normally during use, it means there is a problem. Therefore, our battery manufacturers generally test each battery with a battery discharge tester to ensure the stability of the battery after leaving the factory.

Batteries are widely used in places where batteries are needed, such as electric vehicles, electric golf carts, etc. If the battery cannot be discharged normally during use, it means there is a problem. Therefore, our battery manufacturers generally test each battery with a battery discharge tester to ensure the stability of the battery after leaving the factory. So,How to test battery discharge?

Due to the complexity of the electrochemical reaction of batteries, as well as the differences in various materials, structures, manufacturing processes and use environments, the characteristics of batteries from different manufacturers are quite different. of discreteness.

In the actual use of the battery, the battery will often be charged according to the standard specified by the battery manufacturer. The charging process is relatively stable and more controllable. However, the discharge process will vary greatly with the load. Once the discharge process occurs A large amount of heat accumulates and exceeds the allowable operating temperature of the battery, which will affect its safety and reliability. So the factory test of the battery is a very important step.

How to test battery discharge?

ENS-8006DC Battery Charge and Discharge Tester is a bidirectional DC power supply, which can charge and discharge the battery with only one device, and is widely used in the field of battery and BMS testing. The traditional test adopts the form of source + load, which is not only complicated in the test process, but also unable to switch between charging and discharging at a high speed. The full-scale charging and discharging switching speed of the ENS-8006DC Battery Charge and Discharge Tester only needs 2ms. The real simulation effect can be guaranteed in the road condition simulation test.

In terms of data monitoring, ordinary program-controlled power supplies usually send readback commands periodically to read the voltage and current parameters of the battery during charging and discharging. In this way, the delay in communication will cause a delay in the readback data. For users who have high requirements on data collection speed, it is difficult to ensure that the machine can accurately reply each one by the method of quickly and periodically issuing instructions from the host computer, which will cause data loss or even data faults. . The Battery Charge and Discharge Tester series battery tester has a power ELOG buffer function, the interval of data points and the total buffer time can be set, and the fastest time interval can reach 1ms. By issuing the read-back cache command, all the data in the cache can be read back uniformly when the command is received, which not only ensures the accuracy of the data, but also does not miss data.

Test case: A user uses ENS-8006DC Battery Charge and Discharge Tester to test the charging and discharging performance of the power battery, and it takes 10ms to collect a data point. Use the ENS-8006DC ARB function to edit the charging and discharging steps, set the data sampling interval to 10ms, and the data includes the number of ARB steps currently running, so that users can quickly locate.

The voltage of ENS-8006DC can be up to 2250V, and the power can be expanded to 1.152MW by using the master-slave mode. The built-in function generator can freely generate arbitrary waveforms, and import LIST files to generate waveforms through the USB interface. With high reliability setting function and protection features, rich measurement functions make the ENS-8006DC series widely used in automotive electronics, green energy, high-speed testing, high-power testing, etc. Wide range of DC power supplies.