Master Lu is a professional computer detection software, which obtains the battery loss value by reading the smart chip of the battery. Although there are some deviations in the smart chip itself, especially for batteries that are not usually maintained, the deviation will be even greater. Master Lu's test data can still be used as a reference, because it provides a more accurate index to evaluate the battery loss. Users can judge the health status of the battery according to the test results of Master Lu, and take corresponding measures, such as properly adjusting the usage habits or replacing the battery.