Nowadays, the use of batteries has become a more important part of everyone's daily life, so everyone is also concerned about battery testing. So how much do you know about power battery testing equipment? Today, let's take a look at the power battery testing equipment. What are the test items?
1. Voltage: The test equipment checks the voltage twice, one is the full-load voltage, and the other is the voltage after all new items are tested, especially after the short-term warranty, to ensure that the battery is all normal after the short-term warranty, so the voltage of the second time is somewhat The difference is that the voltage of the second time is a little smaller than that of the first time.
2, Internal resistance: the detection is the 1000hz communication internal resistance of the battery,
3. Battery charging overcurrent protection current: First of all, it is necessary to determine whether the battery has a charging current that is too large, automatic maintenance function, if the charging current is very large, the battery has no maintenance function, and it is very easy to burn the maintenance pcb circuit board in the battery , Therefore, it is very important to ensure that the battery has a battery charging overcurrent protection current function. If not, select the continuous charging current.
4. Continuous charging current: For the pcb circuit board that does not have a large charging current and automatic maintenance function, such a battery generally uses the same current value as the charging head when the battery is charged.
5. Discharge overcurrent protection current: After the discharge current exceeds a certain standard value, automatic maintenance is performed, generally according to the basic parameters of the manual.
6. Continuous discharge current: It refers to the discharge current of the battery under normal application conditions. If there is any problem with the pcb circuit board, it will cause the continuous discharge condition.
7. Overcurrent protection time: In the case of a short-circuit fault at the positive and negative points of the battery, the lithium battery protection board will turn off the response speed, because the current is very large at the moment of the short-circuit fault, if the response speed is too slow, it is very easy to cause the pcb circuit board to burn. , so the faster the time, the better the maintenance of the battery, generally less than 1000us. If the internal resistance of all control loops is too large in the case of a short-circuit fault, the short-circuit fault time will be too large. When the short-circuit fault is too large, special attention should be paid to the analysis of what is going on.
