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Early 2011 Model: A1278 / 2.3 GHz i5 or 2.7 GHz i7 processor

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New battery issue - MagSafe switching light from green to amber

Hi guys,

I get new battery from NinjaBatt (not sure if it's good brand or not but according to Amazon have a good result). So I installed new battery, connect to MagSafe and turn on. Reseted SMC and NVRAM. Then normal start BUT, MBP is too slow (Blackmagic Disk Speed Test show write 5MB/s !!!) and the light on MagSafe changing from green to amber (+/- 6 seconds green and 11 seconds amber). If I push side button for battery I get just first light flashing. In macOS I have 0%.

I have two MBP 2011 - identical same CPU, same RAM so I put the battery in to the second one but same result.

I also tried three different MagSafe chargers - two genuine Apple, one third party - same result.

So look to me like the battery is bad ? Or you guys have any more ideas ? Thanks a lot.

Coconut battery - it’s switching between pictures below.

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Update after 14 hours on charger

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Answered! View the answer I have this problem too

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4 Comments

Let’s get a better view of things, install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see Adding images to an existing question

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@danj Done, it’s switching between two screens.

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Make sure your Coconut Battery version is the latest and tell us if there is a difference in the report you get.

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@mayer last version from webpage.

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Sadly this is a bad battery ;-{

At this point you'll need to get your money back and try another source

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Sometimes a completely drained battery will respond to an overnight charging session.

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4 Comments:

I will leave it over day, I want have it under control, but thanks for advice

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Update - after 14 hours on charger.

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I'm no battery expert, but sure sounds like a bad battery to me.

Have you contacted the vendor and asked them about this behavior?

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@dadibrokeit I did but still no answer.

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Rob will be eternally grateful.
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