• Cell Terminate Voltage: This is the theoretical voltage where the system begins to fail. It is defined as a zero

state-of-charge. Generally, a more conservative level is used to have some reserve capacity. Note the value

is for a single cell only.

• Quit Current: Generally, this should be set to a value slightly above the expected idle current of the system.

• Qmax Cell 0: Start with the C-rate value of your battery.

8.2.2.1.6 STEP 6: Determine and Program the Chemical ID.

Use the BQChem feature in the Evaluation Software to select and program the chemical ID matching your cell. If

no match is found, use the procedure defined in TI's (Mathcad Chemistry Selection Tool (SLUC138).

8.2.2.1.7 STEP 7: Calibrate.

Follow the steps on the Calibration screen in the Evaluation Software. Achieving the best possible calibration is

important before moving on to Step 8. For mass production, calibration is not required for single-cell applications.

For multi-cell applications, only voltage calibration is required. Current and temperature may be calibrated to

improve gauging accuracy if needed.

8.2.2.1.8 STEP 8: Run an Optimization Cycle.

Refer to the Preparing Optimized Default Flash Constants for Specific Battery Types Application Report

(SLUA334B).

BQ34Z100-R2

SLUSF37 – DECEMBER 2022

www.ti.com

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