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The March 2015 update of Apple's 11" MacBook Air features fifth generation Intel Core i5 and i7 processors, resulting in slightly increased performance and battery life.

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Fully charged battery needs power cord to wake from sleep

New battery in Mac Air 2015 11”. After going into nap mode, the Mac needs power to start up, but then I can immediately unplug and the battery is charged at the % where I left it. If it never naps, the battery works fine without the power cord.

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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 Adding images to an existing question

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Not looking for a bot or to feed an app

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No bot here ;-} And you don't need to buy the app the free use version is all you need for us to get a better idea what's happing.

jcdkjpvopvsic Oops! The robot in me has spoken!

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ok I've added the image

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mmm… This is not a new battery! It’s been sitting on a shelf since 2015?? Or is this your original battery??

Sadly, batteries wear out just sitting on a shelf or even inside of a system which is always plugged in to power.

So is the information here from the wrong battery or is SMC messed up. Let’s carefully disconnect the battery and with nothing plugged in press and hold the power button for a good 15 secs to fully discharge the logic board. Now carefully plug in the MagSafe leaving the battery disconnected. Your system should start wait till you get to your desktop and anything that’s auto loaded. Once everything has finished shut down your system and now reconnect the battery. Now this time restart your system, let it run for a good 5 minutes with the MagSafe connected and then take a fresh snapshot posted it here for us to see. Let’s see if things changed.

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This is a battery I purchased on eBay and installed a week ago. My OEM battery was shutting down at 45%. When I get a chance to take the tiny screws out again, I'll follow your directions. Thanks!

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Ryan Buckner will be eternally grateful.
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