Water damage, dried everything, battery refuses to charge

I have a 2013 11" MBA that had a water damage incident. Water (actually, monster energy drink) spilled inside of a bag with a MBA that was placed charger side down.

I took the mba entirely apart down to the keyboard, after which I cleaned it with deionized water, dried it out with compressed air. I let it dry a bit more before restarting. I don't think there is any more water that I can dry.

Currently, the macbook runs great...on adapter power. It also will run fine on battery power.

However, it will NOT charge the battery through the adapter.

I have done an SMC reset, and PRAM/NVRAM reset.

I believe there is damage to one of the boards but I am not sure which one - the small I/O board or the main logic board.

Does anyone have any suggestions?

Thank you.

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Did you completely remove the logic board to clean it? There is more components on the other side as well that likely need cleaning.

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Yes, I was able to remove the logic board as well as the smaller IO board to clean/dry them.

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GIVE TOOLS. FIX FOREVER.

GIVE TOOLS.

FIX FOREVER.

Spread the Fixmas cheer.

GIVE TOOLS. FIX FOREVER.

Spread the Fixmas cheer.

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Give this little gem a try: coconutBattery. Post a screenshot of the what it shows you so we can see.

I suspect you have a blown MosFET in the charging circuit or the comparator logic is damaged.

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Thank you for the suggestion. I tested it with the app, and while the computer runs fine via adapter (not using battery at all), the coconut battery menu says that its running off the battery with 0 watts from the battery.

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Then the one or more of the MosFET's are damaged.

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would those be in the IO board or the main logic board?

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Sadly, its the main logic board that will need replacing. You might find someone with the needed skills, tools & parts to repair your logic board.

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%#*@, I was hoping it was the IO board and I already have one coming in. Ill try swap it anyway since I ordered it. Thanks for your help Dan!

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