Here is an updated description of IGR and IGRR.
3.12 Impedance Growth Rate (IGR)
This condition is event-driven and not evaluated on a regular interval. The test checks for abnormal impedance increases in each cell, independent of the other cells…
The cell voltages for LiFePO4 is simply too low for bq78PL11x:
The minimum start-up voltage requirement is 2.9 V, see RECOMMENDED OPERATING CONDITIONS in datasheet . This requirement is for every connected cell.
In addition, the datasheets specify…
Other Parts Discussed in Thread: BQWIZARD Why do the tools (bqWizard) care about the number of parallel cells. Can the '116 tell if one cell in a parallel bank goes bad?
Just curious,
Bob
Battery Status "busy bit" is set at following timing.
-Power-on
-Communication line pull-up ( standby to active?)
Is this correct operation?
Why is busy bit set when communication line is pulled-up?
Hi John,
Page 8 of SLUA505b details the data collection procedure for the AUX File.
Section 4.2 Data Collection Procedure
What version of bqWizard are you using?
Also could you attach a copy of your AUX file(6cell.csv) data here…
