Hello, all
Now we have some inquiries regarding remained battery information on BQ27500-V120 from our customer.
Please refer to the item below, and feedback us with your comment.
We released our production with BQ27500-V120. However, some parts have been returned from the market since the remained battery information was not correct.
From our investigation, this root cause was found as some registers information were not correct.
<Normal products for full charged battery>
AverageCurrent: -33mA
RemainingCapacity: 444mAh
StateofCharge: 68%
Unfortunately we could not read FullChargeCapacity directly, however the above information may result in 653mAh.
<Returned products for full charged battery>
AverageCurrent: -7mA
RemainingCapacity: 325mAh
StateofCharge: 92%
Unfortunately we could not read FullChargeCapacity directly, however the above information may result in 353mAh.
For your reference, the initial settings for Qmax and DesignCapacity are both 720mAh.
Please let us clarify about the following items.
1) How we could correct these register values
2) Whether only these related registers could be reset
We thank you in advance for your information.
Best regards,