My MacBook Air will only start with MagSafe in it the next morning..

Hello Ifixit,

My MacBook Air 13" Model A1466 continues to irritates me. I've had some problems from yesterday when it couldn't start without my Original 45W MagSafe 2 cable in it for atleast 15-20 minutes. When it is running I can use the MBA without MagSafe in it, and the battery runs perfectly, checked with CoconutBattery, both with charger and without.

If I use my computer at night with the charger in it to "kickstart" it at first, I can use it with no problem, reboot, and close the computer to let it sleep WITHOUT my MagSafe 2 cable.

I can use my MBA perfectly when I first let it start with MagSafe 2 cable in it, but when I close it to go to sleep I cant seem to boot it up the next morning as I should, only with the MagSafe charger.

It has at least 70% battery when I go to sleep and when I can start it after 15-20 min with charger in it, it also has lots of battery life left.

It seems sometimes like it is running without the charger and only with black screen, but i CAN'T "wake it up", adjust the brightness, enter my password to login, or wake up with "S" key on the keyboard.

I've tried:

• Updated to High Sierra
• Reset SMC
• Reset PRAM
• Ran Disk Utility - First-Aid
• Yasu for Mac Cleaner
• CoconutBattery to check the battery
• MagSafe 2 is original, and with no cuts etc.

Best Regards

Just had it started up with MagSafe in it for about 20 min. Couldn't start it by pressing the power button, or click on the touchpad. Had to do a quick SMC reset, and then it just "woke up", looks like it came from normal sleep and like nothing had happened.