FYI, this is urgent, I need to understand why RUP_DIS is being set. I perceive it to be something we DON’T want happening.
While the RES CURRENT change looks like it cleared up the -20C inaccuracy, it seems that all 5 of the batteries that I have cycling have had RUP_DIS set and cleared at least once during the charge, discharge cycle. I had one battery just sitting charged while the others are being charged and discharged, and it DIDN’T have RUP_DIS set at all. I think since RA are now able to update, I am seeing this, which I do now know is an issue, but am feeling uncomfortable seeing it.
Hello,
We are using the BQ27541-G1, and seeing an issue in testing, but it may or may not be a problem. We just need someone to confirm quickly.
We are testing a handful of batteries and all of them had RUP_DIS Set during our first room temperature discharge, and all cleared when the battery was charged.
I ensured that all batteries had RUP_DIS clear after programming them with a new .senc. The RUP_DIS cleared normally after it sat for about 30 minutes after programming and prior to putting them on the cycle tester.
We are a little concerned as the TI App note Achieving a Successful Learning Cycle indicates:
“During discharge, the Resistance Table may update for a while, and then stop. When this happens, RUP_DIS is set. This indicates that the Chemistry ID choice is incorrect. This means that the gauge has measured a resistance value that just doesn't make sense (i.e. is negative). A chemistry cycling is needed to identify the correct chemistry profile.”
This may only apply to the learning cycle, but does the incorrect Chem ID statement apply to a normal discharge as well?
If this is an issue, what can be causing it? Unfortunately, we need to figure this out quickly.
Thank you
