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Modello fine 2011, A1278 / processore i5 2,4 GHz o i7 2,8 GHz

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Runnig slow on battery support

The MacBook Pro I have, gets very slow when running on battery, the cursor gets really slow.

So I’ve been reading a lot and I identified my model (MacBook8,1)

I erased the plist file in the kext file that the tutorial shows.

Then when I reset the system it gets better, so I believe that I’ve fixed the problem,

BUT, when I run Serato DJ 2.0.3 off of battery power the processor gets very high processing, and with the MagSafe connector plugged in it gets down to OK.

What can I do??

I also run the app Dan said coconutBattery and shows this:

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First I would check the battery to see how much life is left in it. Download this great free app: CoconutBattery. Paste a screenshot of the main window so we can see it here Aggiungere immagini ad una domanda

I would also check the energy settings within the Energy Saver control panel to make sure the settings are correct. I would enable the show battery status in menu bar setting I would also make sure not to put the disk into sleep mode when on battery given you’re running a DJ app here. I hope you’ve got plenty of son de Cuba (Buena Vista Social Club) I love Ibrahim Ferrer’s Nuestra Ultima Cita for us older folks!

Being in Cuba it can get quite hot and humid ;-} So you may need to clean out the dust buildup inside and the fan & heat sink. You may need to also clean and apply a fresh coat of thermal paste on the heatsink. As I’m also suspecting your system may be slowing down as it’s overheating.

Here’s the IFIXIT guide you’ll need to follow: MacBook Pro 13" Unibody Late 2011 Heat Sink Replacement here we are only cleaning it.

You might want to download this app: TG Pro it will allow you to monitor your systems temps so when the system slows down you can see if it’s overheating.

Immagine MacBook Pro 13" Unibody Late 2011 Heat Sink


MacBook Pro 13" Unibody Late 2011 Heat Sink Replacement



45 minutes - 1 hour

Immagine iFixit


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Molto facile

2 - 5 minutes

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No, no soy cubano, ¡me encanta la música!


Thank you Dan, I will download the apps. I already make a clean up of the MBP and replaced the thermal paste. I love music too, but I´m not the Dj, it´s a friend of mine and the MBP is his. I´ll post the photos once I download the app, the Internet in Cuba sometimes is very slow. Thank You!


The coconutBattery App shows status Good


Can you paste a screenshot of the main window so I can see the other data. As the cycles and the voltages are what we need to focus on.


could this be a problem in the SMC chip??????????????


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First Try resetting the SMC, If this doesn't work then I would suggest replacing the battery. Just make sure not to buy a cheap battery off of eBay; I would recommend the cheapest battery being $40.

I replaced my old battery with this one from Amazon.

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Luis Anniel sarà eternamente grato.
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