My Macbook air goes to sleep randomly when magsafe is connected.

[EgEm]

Greetings:
I have a Macbook air from 2013, i bought it second hand and it was working properly. But after a while, i started noticing an issue:

When i connect the charger, the macbook goes to sleep mode. I can click on the trackpad or press the keyboard and the laptop comes back for like 10 seconds but then its goes to sleep mode again. If i disconnect the magsafe connector, the laptop just come back from sleep and works correctly.

The magsafe led is not ON, and then, after 10/20 minutes with this behaivor, suddenly the charger starts charging (the LED turns amber, green if the battery is fully charged) and i can use the laptop just fine again.

After a while (this time it can be several hours) the laptop just start having the same behaivor.

So far i've tried:

- SMC, PRAM and all that stuff Resets.
- Changed the I/O charging port.
- Used a different charger

Without any success. The behaivor keeps repeting.

Coconut battery shows a healthy battery.

Any help would be great as i dont want to blindly spend on more parts, thank you.

 

[Audit13]

What is the full-charge capacity of the battery?

Was the Air ever dropped or exposed to liquid?

 

[EgEm]

The Full Charge Capacity shows:
Current Charge: 238 mAh
Full Charge capacity 6422 mAh
3.7%

I fully drained the battery as im trying to cycle the battery again, maybe thats why its showing these numbers.

It has a small dent at the top left part of the laptop, where the charger goes. But i already replaced the IO board of the laptop.

 

[Audit13]

Did MacBook behave this way before and after replacing the MagSafe board?

Possible liquid exposure?

 

[EgEm]

Yes it behaved the same way. Is there a way to know if it has been damaged by liquids?

 

[Audit13]

Could there be liquid damage?

 

[D'n Dave!]

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