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2.3GHz, 2.6GHz, or 2.7GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.7GHz) with 6MB shared L3 cache.

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iFixit Battery replacement works until 25% battery life

Replacing the battery was no small task but went well.

I followed the directions of letting the battery discharge, then charge to 100% then discharge and charge to 100% again, then continue with normal use.

However, that normal use will get me to 25% remaining life and then the laptop will shut itself down.

I have reset both the SMC and the NVRAM.

Laptop seems to function fine other than that.

Answered! View the answer I have this problem too

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Have you checked it with a dedicated battery program like Coconut Battery

http://www.coconut-flavour.com/coconutba...

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I have not used that specific app (I have been using Battery Monitor and Battery Health from the App Store), but if I must here is a screen shot: https://ibb.co/cq0qG5

As you can see nothing out of the ordinary like I stated. I don't get a warning from the machine with my settings set to 5% to alert me of low battery because the laptop shows it is at 25% still.

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Same issue here again. Mine worked for a couple of charges and then it went back to 10%. I asked for an exchange.

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Yes, my exchanged battery now goes down to around 3% before powering off. I am good with that.

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Return the battery, it is faulty if you have tried resetting the SMC and NVRAM.

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Finally got through doing tests the team at iFixit wanted me to do. They are sending me a replacement battery to try again.

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OK, I just got a new battery from ifixit and got the same problem but it was turning off at 30%..

I was able to solve it by cycling the battery. Is annoying but it works:

-Fully charge the battery and leave it connected and charged overnight.

-Then use the laptop until it runs out and turns off by itself. Leave it discharged for about 4-5 hours or more.

-To verify if the trick works, pressthe Power button and make sure you see the "Connect to the power" symbol.

-Then fully charge it again.

After cycling my battery capacity dropped a bit, but at least now is accurate. I recommend doing coconut battery monitor.

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Glad to hear your issue is sorted out. I did your suggestion a day ago when I found this site: http://www.newertech.com/batteries/power...

The laptop will now get to 9% battery before it kicks off so it is better than my original 25%. But still not acceptable. I am working with the iFixit team now and doing what they suggest.

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Do it once again. I had to do it again to get it perfect. Now it turns off at <5%. I might need to do it a third time.

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Have done it several times. Still no luck, it actually went back up to 15% and would shut down.

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Ken Charity will be eternally grateful.
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