• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 148 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ24160: Can I read current battery level from BQ24160?

Helmut Forren
Mastermind 6805 points
Part Number: BQ24160
Other Parts Discussed in Thread: BQ25896

I have a BQ24160RGER in a circuit.  Everything is working fine.  However, I would like to be able to query the chip and find out the current battery level.  My objective is to display to a user the current battery percentage, whether charging or discharging.  I can't seem to find this capability in the BQ24160 datasheet.

If I can't do this with the BQ24160, how might I do it while also not adding undue load and reducing battery life.  For years (decades) on automotive systems, I've measured the car battery with a simple resistor divider going into an ADC.  However, this does add load and reduce battery lifetime.  On a car battery, this is inconsequential.  But on a 3800 mAHr battery, this is a big deal.

Thanks!

  • 0
    TI__Guru*** 149375 points

    Hi Helmut,

    Unfortunately, this older generation charger does not have integrated ADC.  For ADC you would have to move to BQ25896 single input charger or later chargers.  TI currently does not have a dual input charger with ADC.

    Regards,

    Jeff