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BQ25606: When the battery is fully charged and discharged to 3.8v, it is still unable to restart charging After the first charge, it stops, no more charging

2018
Expert 2630 points
Part Number: BQ25606

BQ25606
Charging voltage: 4.2v
Charging current: 800mA
Battery capacity: 6000mAh
Charging time: 8 hours
Discharge time: 30-60 days
Minimum discharge voltage: 3.6v
When the battery is fully charged and discharged to 3.8v, it is still unable to restart charging
After the first charge, it stops, no more charging

  • 0
    TI__Genius 10240 points
    Clark,

    Please check the register reading for any possible fault condition and valid charging conditions.
    - Is the timer expired? You c.an try to set the timer longer REG05[2:1]
    - Make sure the input voltage source, register setting and /CE pin valid for charging.
  • 0 in reply to ezhao
    Expert 2630 points

    Can I adjust the timer by peripheral

  • 0 in reply to 2018
    TI__Mastermind 25800 points
    Hey Clark,

    This is a standalone charger and the charge timer is not resistor programmable.

    What is your input voltage power capability? Voltage and current rating?

    If you bypass the load switch, do you see the same behavior from the charger? I would also recommend getting our BQ25606EVM in order to test and cross compare your battery between our EVM board and our custom board, and see whether or not you see the same behavior.


    Regards,
    Joel H