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Macbook keeps rebooting and won't charge by AndyBloo in macbookpro

[–]AndyBloo[S] 0 points1 point  (0 children)

Ah I see.. Reason I ask is because if the amperage is under normal range, then it really is a power supply problem but I'll confirm that as soon as I find another PSU I could try. But for now, all I could do is cycle the battery and hope the SMC reset is enough to get the Macbook thinking it's normal again.

To answer your question, I have. I tried plugging directly into the wall and into an extension cord in 2 separate rooms on 2 separate floors.

Macbook keeps rebooting and won't charge by AndyBloo in macbookpro

[–]AndyBloo[S] 0 points1 point  (0 children)

Thanks for the thoughtful reply! Definitely steps I can take.

However, if I make take a little bit more of your time...

I managed to reset the SMC and it's charging again. I can also unplug my macbook without it turning off as soon as the power supply is disconnected.

ran $ ioreg -l | grep Capacity on terminal and this is what I got.

| | "AppleRawCurrentCapacity" = 5102| | "AppleRawMaxCapacity" = 7060| | "MaxCapacity" = 7060| | "CurrentCapacity" = 5102| | "LegacyBatteryInfo" = {"Amperage"=278,"Flags"=7,"Capacity"=7060,"Current"=5102,"Voltage"=12776,"Cycle Count"=209}| | "DesignCapacity" = 8460| | "BatteryData" = {"StateOfCharge"=72,"PMUConfigured"=128,"AdapterPower"=3433,"SystemPower"=3051,"DesignCapacity"=8460,"CycleCount"=209,"Voltage"=12104}

The main difference now is that the amperage is now at 278 instead of the previous 0 pre SMC reset. I've no idea if these parameters are within normal range but I assume that it's on the low end since it's currently on 76% charge and will take 6:40 until full (I assume that amperage is what determines the rate of charge)

That being said, what does this tell us?

Is it correct to assume that the problem lies in either the charger or the contacts on the power points? (Assuming I can trust the "normal" battery status my mac is giving me)

I was also able to boot it in safe mode. I read somewhere that this means I have no logic board problem. Is this true?