What is the standard hold-up detection?

IEC stipulates that the standard charge retention detection of nickel-metal hydride batteries is: after the battery is placed at 0.2C to 1.0V, it is charged at 0.1C for 16 hours, and stored at a temperature of 20℃±5℃ and a humidity of 65%±20%. After 28 days, discharge to 1.0V at 0.2C, and the Ni-MH battery should be longer than 3 hours. The national standard stipulates that the standard charge retention detection of lithium-ion batteries is: (IEC has no relevant standard) the battery is placed at 0.2C to 3.0/piece, and then charged to 4.2V at 1C constant current and constant voltage, cut-off current 10mA, and temperature After storing for 28 days at 20°C±5°C, discharge it to 2.75V at 0.2C and calculate the discharge capacity. Compared with the nominal capacity of the battery, it should be no less than 85% of the initial capacity. 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 article: What is high temperature and high humidity detection?