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BQ40Z50: Some question about BQ40Z50 SOH

Part Number: BQ40Z50

Dear Expert

The condition for updating the 25 ℃ Q of SOH is not clearly defined in the date sheet of BQ40Z50. Taking SOH Load Rate as an example if it is set to 5Hr rate (0.2C discharge) by default, there are the following questions:

1. At a discharge rate of 0.2C, does the discharge require continuous discharge to DOD, without interrupting the discharge midway, otherwise it will not be updated?

2. If the temperature is 25 ℃ during the discharge process, what are the requirements for the temperature range? If it is below or above what temperature, it does not meet the conditions for updating SOH FC? The datasheet is not clear.

3. If the SOH Load Rate is dynamic during the discharge process, sometimes it is 0.1C and sometimes it is 0.3C, how does the BQ40Z50 R2 algorithm handle it?

4. In practical applications, the discharge current of the battery pack system cannot always be maintained at a constant discharge rate of 0.2C (SOH Load Rate: 5Hr Rate). How did BQ40Z50 R2 select the discharge rate data as the condition for SOH estimation simulation.