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BQ27441-G1: BQ27441-G1A

sannareddy gowthami
Prodigy 10 points
Part Number: BQ27441-G1
Other Parts Discussed in Thread: BQSTUDIO

Hi,

     How to find out fuel gauge is working with updated design capacity value?

I updated design capacity value to 400mAh in configuration process. After configuring the fuel gauge, I read design capacity register( 0x3C and 0x3D), which returns default design capacity value (1340mAh) instead of 400mAh.

I updated design capacity value at 0x4A and 0x4B location of the Data memory. When I read that location it is showing correct value ie., 400mAh. But when I read 0x3C and 0x3D register it is showing 1340mAh.

Here which command (0x3C and 0x3D or 0x4A and 0x4B) I need to use to read design capacity value.

  • 0
    TI__Guru* 76230 points
    Hi Sannareddy,
    Did you follow the instructions iin the TRM on page 14 for updating the design capacity? Are you trying to do that using bqstudio or your host controller? Try doing it first with bqstudio and when successful, then do it with your host controller.

    thanks
    Onyx