SLUUCH4A October 2021 – October 2023 BQ27Z746
Set up the EVM, a voltage power supply (either a battery or a bench power supply can be used), and a power supply capable of supplying a constant current with milliamp precision. The constant-current supply should be connected to the BAT- and PACK- headers. The exact circuit layout is shown in Figure 5-2. The constant-current supply is shown as being attached to the test point of BAT-, but can also be attached to the BAT- header, as well.
As shown in Figure 5-3, from the Calibration window in bqStudio, enter the precise value of current being supplied, click to check the Calibrate Current box, and then press the Calibrate Gas Gauge button.