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Asus X550CC Rev 2.0: Battery Charging Issues, Charge Indicator Drops, Tested on Two Batteries

Ruszkowiec 3951 4
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  • #1 16359698
    Ruszkowiec
    Level 13  
    Hello. I have a problem with the Asus X550CC Rev 2.0. It works on the charger itself, but won't charge the battery. The diode is on, but unfortunately, despite the message that the battery is being charged, the charge indicator drops. Tested on two power supplies and two batteries. Unfortunately, I can't find a schematic for it. Has anyone had a similar case or has a piece of a schematic and could share their insights? Thank you in advance.
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  • #2 16359738
    varon23
    Level 11  
    Enter the voltage on the charging pins and the motherboard model. This will make things easier. greetings ;)
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  • #3 16359790
    Ruszkowiec
    Level 13  
    Plate model listed above x550cc rev 2.0 gives the voltages:
    without battery:
    1 weight, 2 weight, 3 3.26, 4 3.30, 5 3.30, 6 0, 7 2.92, 8 2.92
    with a battery attached
    1 0, 2 0, 3 0, 4 3.26, 5 3.23, 6 0, 7 16.2, 8 16.2
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  • Helpful post
    #4 16359808
    lisek
    Service technician RTV
    Subject (one of 10 mb: x550c rev.2.0) Link , wrote what charger> BQ24725A

    Read on the forum about this arrangement, was given worth. voltage on pin "ah and what conditions to meet for Aku to load (datasheet is also given)
  • #5 16359813
    Ruszkowiec
    Level 13  
    Thank you, I will get acquainted with the topic, I did not come up with it before.

    After replacing the BQ24725A chip, the board started to charge the battery. thanks for your interest and help. Close the topic, best regards
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