BQ27621-G1: Performance and accuracy of BQ27621-G1

Hello Chirag,

Chirag Jingar said:

1. What is the maximum and average accuracy of BQ27621-G1 against actual battery % SOC ?

-Typically dependent on the load and external environment conditions would advertise for 1% SOC accuracy if the correct chemID and data memory parameter, calibration and overall setup was done correctly. However since this is a pre-programmed gauge that doesn't have access to the entire chemID library than an understanding of a lower SOC accuracy may take place unless the cell is very compatible with the limited chemID's. 

Chirag Jingar said:

2. Is IC included the aging of battery against its charging cycle, temperature etc ?

-State of health and charge cycle appears to not be available based on the technical reference manual  however we do offer gauges with this type of information. Temperature measurements are available and for more parameters please reference the TRM.

Technical Reference Manual (TRM):
https://www.ti.com/lit/ug/sluuad4c/sluuad4c.pdf?ts=1757693041074&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ27621-G1

Thank you,
Alan