• State
  • Replies 2 replies
  • Subscribers 64 subscribers
  • Views 30 views
  • Users 0 members are here
Support feedback
Options
Options
Related

BQ40Z80: Question to ShutDown and MaxError

Marco Erni
Prodigy 20 points
Part Number: BQ40Z80

Tool/software:

Hi

We are working on an BMS with BQ40Z80. We are wondering what happen to the MaxError after the BMS has been a long time in ShutDown.

After startup to normal mode, will the MaxError be higher or even 100% or will it stay where it was? Does the time matter, how long the pack was in ShutDown?

Additional question to MaxError: Does it only reflect, how accurate RelativeStateOfCharge() and AbsoluteStateOfCharge() are or does it also give information about accurency of RemainingCapacity()?

Will RemainingCapacity() be correct after wakeup from Shutdown after a longer time?

Thank for your answers

Best,

Marco

  • 0
    TI__Mastermind 26395 points

    Hello,

    This question has been assigned and will be reviewed when possible.

    Thank you,
    Alan

  • 0 in reply to Alan Frias
    Prodigy 20 points

    Hi Alan

    Can you give priority to this question, especially if MaxError also reflects accurency on RemainingCapacity or if RemainingCapacity is always accurate without takeing MaxError into account.

    Background is, that our device warns the user, if the battery is soon empty. Is it safe to just look on RemainingCapacity or do I need also to take MaxError into account?

    How will the accurency of MaxError and RemainingCapacity be affected by long Shutdown time? After shut down, the battery pack will be charged to full capacity.

    Thanks for your udpate.
    Best,
    Marco