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What is the IEC standard cycle life test?

Views: 0     Author: Site Editor     Publish Time: 2023-08-02      Origin: Site

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IEC stipulates that the standard cycle life test of Nickel–metal hydride battery is:


After discharging the battery at 0.2C to 1.0V/cell


01) Charge at 0.1C for 16 hours, then discharge at 0.2C for 2 hours and 30 minutes (one cycle)


02) Charge at 0.25C for 3 hours and 10 minutes, discharge at 0.25C for 2 hours and 20 minutes (2-48 cycles)


03) Charge at 0.25C for 3 hours and 10 minutes, and discharge at 0.25C to 1.0V (cycle 49)


04) Charge at 0.1C for 16 hours, let it stand for 1 hour, discharge at 0.2C to 1.0V (50th cycle). Repeat 1-4 for Nickel–metal hydride battery


After 400 cycles, the 0.2C discharge time should be greater than 3 hours; Repeat 1-4 for 500 cycles for Nickel–cadmium battery, with 0.2C discharge time


It should be greater than 3 hours.


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