EV battery

Battery failure measurement method

by：Vglory 2021-03-24

Battery failure test method 1. Use a hydrometer to test the specific gravity of each grid 2. By comparing the following table, the test result is obtained 3. If all people are red, the battery should be re-tested after charging 4. If 1 or doge (Non-possessive) is red, you need to replace the battery 5. If the owner is yellow, the battery may be good. Further test the voltage to confirm the color specific gravity value of the charge volume hydrometer. The voltage value is about 100% yellow 1.2712.7 about 75% white 1.2312.4 about 50% white 1.1812.1 about 25% red 1.1311.8 about 0% red 1.0811.5 voltage detection :1. The specific gravity should be measured before the voltage test. 2. By comparing the following table, the test results are obtained. 3. If the voltage is normal and the hydrometer is in the yellow area, it means the battery may be good. Please confirm with the battery tester. 4. If the test voltage is NG, even if the hydrometer is detected in the yellow area, it indicates that the battery is defective and the battery needs to be replaced. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Performance comparison of 18650 lithium ion battery and polymer battery

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