The service life of the product is 300000h under the prescriptive conditions of operation method, transportation and storage.
2. Test method: the cooling and heating alternating Test .
A cycle period of the product is 6s working with electricity and 18s pause, then 6s working with reverse electricity and 18s pause. The total testing time is 12h during which the temperature at the end of the 6th second reaches 80℃ by adjusting the current. The absolute value of change rate of the internal resistance should be no more than 5% after testing.
3. Storage life:
The storage life is 5 years if the product is preserved in dry, ventilated, non-corrosive-gas warehouse with -10-40℃ and no more than 80% relative humidity.
