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bq27541

mel rinn
Prodigy 160 points
Other Parts Discussed in Thread: BQ27541

We have been using the bq27541 for several years now for two differnet battery packs. Recently (today) while researching field problems I discovered that I could write our standard dfi file to our high current battery packs, but couldn't write the low current dfi file to our lower current battery packs. As of now our battery pack line is shut down. I have tried several files from several different sources that have worked until recently and none of them will now change the design capacity in the data flash screen. The higher capacity dfi file works fine, but the lower capacity dfi file will not change the design capacity. Reports from the field have been that suddenly our packs aren't lasting very long.

Thanks,

Mel Rinn

Detcon 

melrinn@detcon.com 

  • 0
    TI__Expert 8230 points
    Hello Mel,

    Couple questions to help me understand better your situation:

    Besides the design capacity, is there any other parameter that differs from the dfi files? What bq27541 FW version are you using? What procedure are you using for uploading the DFI? Are the gauges being unsealed properly?

    Thank you.