BQ28Z610-R1: OTC delay time setting 2s

When will the the sudden changes in temperature come out? Some times we find the temperature recorded in gauge lifetime is over OTC or OTD temperature.

Hello Ran,

You can log with bqStudio and see how soon the gauge reports it. The data recorded may be due to applied voltages during manufacture. There are commands to turn off lifetime updates and then turn it back on after the pack is ready to ship.

Hello Shirish,

Commands had been sent to turn off lifetime update before pack ship,I mean we find the temperature recorded in gauge lifetime is over OTC or OTD temperature when pack is assembled with host.

Hello Ran,

What are the values of temperature? How many packs are affected?

OTC is 63℃，delay time is 2s, the temperature recorded in gauge lifetime are 68℃,77℃,88℃ and so on.More than 10PCS packs are found affected.

Hello Ran,

Lifetime data is updated even when there is no charge or discharge. Storage at high temperatures will not set OTC or OTD but will be recorded in lifetime data. Is it possible that the pack was exposed to higher temperatures?