Part Number:BQ40Z50-R2
Hi,
I have tried for 2weeks to preform a successful learning cycle with BQ40z50-R2 with a quite large battery (4S54P, 156Ah) without any luck. Now it starting to get rather urgent to solve this issue.
Before I started with the learning cycle of the large battery, I performed a successful learning cycle with a smaller version of the battery above(cell balancing is active). I used document SLUA848 as ref.
Then I changed the necessary parameters for the capacity scaling and preformed the learning cycle again, but without any success. This has been repeated 3-4times.
1. Learning cycle with only BQ40z50-R2: (use SLUA848 as ref.)
I can't get past Lstatus() = 0x05, so it seems I only receive updated Qmax parameters and not Ra. (cant get lower error value than 3%)
2. Calculate Qmax and Ra values with GPC Maker tool:
I read somewhere that is also possible to use the GPC Maker tool (GPCRA0) for calculating Qmax and Ra0 values. But, when I use GPC Maker some error is generated regarding the "term voltage", which is rather confusing as the .gg file is directly generated from BQstudio. Pls see attached report.
Which of the two methods above is best suitable for my learning cycle process?
Note, I have all files for both step 1. and 2. but I dont feel confident to just updated them on the forum. Is it possible to have direct contact with someone who can solve my issues?
Thanks in advance!
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