What are the inspection methods for common faults of electric bicycle batteries?

Inspection methods for common faults of electric moped batteries 1. Visual inspection: inspection of appearance deformation, damage, leakage, pollution, etc. 2. Voltage measurement: first measure the total voltage, then measure the voltage of a single battery, and check whether the connection is intact and normal. 3. Inspection of the battery safety valve: remove the upper cover to check whether there is an abnormal phenomenon such as acid around the safety valve, and open the safety valve by hand to check whether there is adhesion, looseness or damage. 4. Battery internal inspection: important inspection items: (1) Electrolyte: visually inspect the dry humidity of the battery's internal electrolyte, and use wooden strips to test if it should feel moist. (2) Check the cell voltage of the battery to determine short circuit and open circuit faults: the method of measuring the cell voltage is to measure the voltage of the cell by contacting the bus bar in the battery with a metal wire. 5. Battery air-tightness inspection: Inflate the battery with an air pressure test device modified by a sphygmomanometer, with a pressure of 30-40Kpa, observe whether the pressure gauge is stable, or check the battery in the water. 6. Capacity check (according to JB/T10262-2001 standard): Connect the fully charged battery for discharge, with a discharge current of 5A. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.