BQ34Z100-G1: FCC not equal to battery tester machine

Hi,

      My customer ask why the FCC value not equal to there battery test machine.

The machine report capacity is 13.7mAH but bq34z100-g1 FCC is 13.25mAH.

The gauge update status is 0x06, cycle count is 2. This test not for learning cycle 

and did not have relax time. I want to know why FCC was deviate the machine,

whether the test method is wrong. 

Thanks

gg and log.zip