Chosen Solution
I am using a third party power adapter I bought off of ebay to charge my Macbook Air. The LED will not turn on and the battery will not charge, however the Macbook otherwise functions as normal. I have tried everything under the sun to get it to charge again. I have reseated the battery, SMC reset, warmed the charger, and ran Apple diagnostics with no faults. I strongly suspect it is the charger and I’m anxiously waiting for a friend to get back from vacation to lend me his. A bit of history, before the this happened, my original Apple official charger had a stress break at the T-connector. As a result, I don’t believe the grounding wires were making contact. I suspect this could have damaged something. Here’s my current Power readout. If anyone has this happen to them, I want to know what I have to replace before I go out and buy a new battery, charger, etc. If it is the logic board I am tempted just to sell it AS-IS. Battery Information: Model Information: Serial Number: [removed] Manufacturer: SMP Device Name: bq20z451 Pack Lot Code: 0 PCB Lot Code: 0 Firmware Version: 406 Hardware Revision: 000a Cell Revision: 175 Charge Information: Charge Remaining (mAh): 0 Fully Charged: No Charging: No Full Charge Capacity (mAh): 4079 Health Information: Cycle Count: 542 Condition: Normal Battery Installed: Yes Amperage (mA): 0 Voltage (mV): 5894 System Power Settings: AC Power: System Sleep Timer (Minutes): 10 Disk Sleep Timer (Minutes): 10 Display Sleep Timer (Minutes): 10 Wake on AC Change: No Wake on Clamshell Open: Yes Wake on LAN: Yes AutoPowerOff Delay: 14400 AutoPowerOff Enabled: 1 Current Power Source: Yes DarkWakeBackgroundTasks: 1 Display Sleep Uses Dim: Yes PrioritizeNetworkReachabilityOverSleep: 0 Standby Delay: 4200 Standby Enabled: 1 Battery Power: System Sleep Timer (Minutes): 10 Disk Sleep Timer (Minutes): 10 Display Sleep Timer (Minutes): 2 Wake on AC Change: No Wake on Clamshell Open: Yes AutoPowerOff Delay: 14400 AutoPowerOff Enabled: 1 DarkWakeBackgroundTasks: 0 Display Sleep Uses Dim: Yes Reduce Brightness: Yes Standby Delay: 4200 Standby Enabled: 1 Hardware Configuration: UPS Installed: No ‘‘‘AC Charger Information: Connected: Yes ID: 0x0000 Revision: 0x0000 Family: 0x0000 Serial Number: 0x00000000 Charging: No’’’
First I would download Coconut Battery, because it will present you the battery info in a more readable fashion. The key indicator to look for is “current capacity”, because that’s what your battery has left of the original capacity (assuming the battery is not simply dead or defective). Your load cycles are high, but that doesn’t mean it’s not still a good battery. Did the original AC adapter stop working? Has the 3rd party AC adapter never worked? I wouldn’t jump the gun and start buying parts, especially if you’ve only seen this behavior with the current AC adapter. Try flipping the connector over – sometimes fidgeting with it a little makes a difference. Also, if there is something in the connector, like a staple, that can cause problems. Sometimes an AC adapter can have a “bad charge”, and disconnecting it from the wall, laptop, and extension cable and letting it sit overnight can cause the light on the AC to come back. But in any case, you’re not going to know much until you have a light on the AC. If you have an Apple store in your area you can take it in and connect it to an OEM AC and hopefully you’ll find out that everything is fine and you just need a new one.
