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September 28, 2022
The high temperature and high humidity test of ni-mh battery is: after the battery is charged, it is stored at constant temperature and humidity for several days, and no leakage is observed during storage.
The high temperature and high humidity test of lithium battery is: (National Standard) to charge the Battery 1C constant current and constant voltage to 4.2 V, cut-off current 10 ma, then put into (40 ± 2) ° C, relative humidity is 90% -95% constant temperature and humidity box after 48 hours, the battery was taken out at (20 ± 5) ° C and put aside for 2 hours. The appearance of the battery should be normal. Then the battery was discharged at a constant current of 1C to 2.75 V, and then charged at 1C and discharged at (20 ± 5) ° C for 2 hours, until the discharge capacity is not less than 85% of the initial capacity, but not more than 3 cycles.
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