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820-3115 won’t run out of battery

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  • 820-3115 won’t run out of battery

    820-3115 had liquid damage around SMC area ,
    works fine with charger but won’t work with battery only .
    SMC !!!

  • #2
    Did you try other known good battery?
    Does it charge battery?
    Post PPBUS_G3H volatge w/ and w/o battery connected.

    Please post more relevant information when you ask for help...

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    • #3
      I tried new battery it is not working with it .
      yes it charging the battery and percentage goes up fine but once disconnect the charger it is die .
      the PPBUS_G3H with battery connected is 12.61 v without
      battery is 12.60 v .

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      • #4
        With battery you should get lower voltage, increasing when charging it.
        PPBUS_G3H goes back to normal value once battery is fully charged
        Did you check with 100% battery charged?

        Machine does even try to start on battery alone?
        Any way to test these batteries with other board?

        Post PPBUS_G3H voltage on battery alone.
        Also run ASD with battery connected.

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        • #5
          Sorry I measured first time with charger .
          battey alone now is 95% charged , the voltage on PPBUS with battery only is 12.39 .
          these batteries works fine with other boards .
          when battery alone connected it is try to start and the fan spin second the stop .

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          • #6
            Charger plus 95% battery should have less than 12.5V on PPBUS_G3H.
            Did you run ASD?

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            • #7
              Will run ASD and let you know .

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              • #8

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                • #9
                  ID0R (AMON) is directly related with R7020.
                  Post exact resistance between pins 27/28 of U7000.
                  If is OK, check R5439 and its traces.
                  VP0R is related with Q5480. Checl all resistors/traces around it.
                  All these components are close to SMC, where you had the spill I think...

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