The cycle life testing method for MQ tech batteries (inferred based on the provided MQtech 522569-S-2C model parameters) is as follows:
Cycle life testing conditions
Charge and discharge rate: 0.5C constant current charge and discharge
Charging: Charge at a 0.5C rate (500mA) to a cut-off voltage of 8.4V
Discharge: Discharge at a rate of 0.5C (500mA) until the cut-off voltage is 5.5V
Temperature conditions: 25 ℃± 5 ℃ (ambient temperature environment)
Cycle times:>500 times
After completing 500 cycles of charging and discharging, the battery still needs to maintain its rated capacity (such as over 80% of the initial capacity, with specific threshold values referring to enterprise standards).
Test Basis
The testing conditions clearly marked in the document for cycle life are 0.5C/0.5C charge and discharge, and 25 ± 5 ℃ environment, which comply with the industry's conventional testing methods (such as IEC 61960 standard).
Precautions
In actual testing, it may be necessary to monitor the capacity decay rate after each cycle. If the capacity is below a threshold (such as 80%), the test will be terminated and the actual number of cycles will be recorded.
High or low temperature environments can significantly affect the cycle life, but the testing conditions for MQ tech are clearly at room temperature.
If further verification is required, it is recommended to contact the official MQ tech for detailed test reports or enterprise standards.
--------------------------------