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Modell A1369, 1.6, 1.7, oder 1.8 GHz Prozessor, 64, 128 oder 256 GB Flash Speicher.

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50 Cycle Batter, 1350 Days, 29% Design Capacity 1900mAH - Bad Battery?

I bought this battery back in 2018 from iFixit to try to replace a service battery warning on my mac. I don’t think the warning ever went away but the battery lasted longer than my original battery which was 7 years old at that point. I should’ve requested a replacement but I think the time for that has long been past. I went to view the battery product page and noticed they had a warning saying some people had issues with the aftermarket battery on certain OS versions.

My question is if my battery has those stats in the title would upgrading my OS do anything? Or is this just a crap battery I have? Note: I have also tried resetting SMC & recalibrating the battery.

CoconutBatter Info:

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Beantwortet! Antwort anzeigen Ich habe das gleiche Problem

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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 Bilder zu einer vorhandenen Frage hinzufügen

From a cycle or days count your battery should still be good. OS updates don't really matter from a function stand point, what does effect things is the upgrade process is often quite heavy so a weak battery can often fail during the process as the stress does you in.

Let's see what CoconutBattery tells us.


@danj Thanks for the response. I have included the snapshots from CoconutBattery in an edit to the original post.


A side note. My AC adaptor cord is quite frayed. I was reading a different forum post and someone said that after replacing the adaptor they saw the warning go away. So maybe I will try that too. Not sure if it would not be too late if the battery is already reporting 30% of it's original capacity.


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Gewählte Lösung

Well you do need to replace that MagSafe charger for sure as you could also damage your system with a bad cord if it shorts across. One very important point is make sure you replace it with a REAL Apple unit not a knockoff!

Don’t buy off of the marketplaces as all you’ll get are knockoffs!

Here is the MagSafe you need Apple 45W MagSafe 2 Power Adapter for MacBook Air

Well, your battery is shot! Sadly it’s just time for a replacement too! MacBook Air 13" (Late 2010-2017) Battery and here’s the guide MacBook Air 13" Mid 2011 Akku austauschen

MacBook Air 13" (Late 2010-2017) Battery Bild


MacBook Air 13" (Late 2010-2017) Battery


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Thanks Dan. I didn't realize the worn adapter could cause that serious of a problem and damage the system. Is this adaptor iFixit has listed legitimate? Apple MagSafe 1 AC Adapter

Looks like it has the apple Logo and everything on it.

Still all this is cheaper than buying a new MacBook by a longshot and I am comfortable changing the batteries by now.

Thanks again for all the help!


@Howarthjt - I can't say if the iFixit store unit is a real unit or not. Send them an email asking if it was manufactured by Apple or not.


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Howarthjt wird auf ewig dankbar sein.

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