SohoSoho Author

Level 1

8 points

MacBook Pro 2009 battery flashes

Hi, I bought a new battery for my MacBook Pro 2009 and after installation and resetting smc snd nvram I followed the instructions to calibrate the battery. I left the battery to drain over night with the screen on and in the morning the computer is dead (as expected) but the battery indicator bottom flashes instead of being off when I push it. What does that mean? I was expecting the battery drains 100% when I left it on over night. Does that flashes mean the battery is empty?

Earlier Mac models

Posted on May 25, 2023 1:45 AM

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4 replies

Level 9

51,084 points

May 25, 2023 5:09 AM in response to SohoSoho

Hi,

I think it's almost empty.

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Level 9

51,084 points

May 25, 2023 4:09 AM in response to SohoSoho

Hi,

I think you don't need to care much about new battery be flashed. Recent new battery technology better than old, 2009 year battery.

About battery health management in Mac laptops - Apple Support

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SohoSoho Author

Level 1

8 points

May 25, 2023 4:34 AM in response to kaz-k

Actually one of the LEDs (the first one) only flashes. Does it mean it’s empty?

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May 25, 2023 4:39 AM in response to SohoSoho

This is a common problem with the old computer operating systems. Old devices will start to show loss of power and signals as they become more used

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MacBook Pro 2009 battery flashes

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