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BQ27200: After I changed the mode from unseal to sealed, the value of data memory became incorrect

Part Number: BQ27200
Other Parts Discussed in Thread: BQ27220

According to bq27220 TRM Page 65, I try to change design capacity in my host mcu.

However, after performing step 16(Set mode to seal),not only the value of design capacity has changed, other values(for example: FullChargeCapacity,  DesignVoltage) also have changed。

Why did the values of other items change after step 16?

Before performing step 1, the values are as follows:


FullChargeCapacity(0x929D ):3000


After performing step 15, the values are as follows:


FullChargeCapacity(0x929D ):3000


After performing step 16, the values are as follows:


FullChargeCapacity(0x929D ):2800