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BQ78350-R1: Clarification on Capacity Gain and CC Gain

Part Number: BQ78350-R1
Other Parts Discussed in Thread: BQSTUDIO

Tool/software:

Hi everyone,

According to the BQ78350-R1 Technical Reference, the relationship between Capacity Gain and CC Gain is defined as:

Capacity Gain = CC Gain × 298261.6178

Could someone explain why, after calibration, these values tend to be the same or very close? I've observed this across different types of batteries, and I’m curious if there's a specific reason for this correlation.

Additionally, I noticed that GAIN is measured in milliohms (mΩ). Could you elaborate on why this unit is used and how it relates to the calculations?

Looking forward to your insights!

Thanks in advance, Dan

Calibration Current CC Gain 5.097 mOhm
Calibration Current Capacity Gain 5.098 mOhm