1 MacBook Air - New battery: suddenly undetected, will not charge
At the weekend I received a new (and apparently genuine) Apple branded battery for my MacBook Air 11 (early 2015). Fitted in quickly and it worked perfectly, showed full expected capacity and would charge and discharge no problem. I ran it through two charge cycles with no unexpected behaviour.
A couple of days later I turn it on in the morning (sitting attached to the MagSafe charger on power) to find no battery can be detected, at all. This includes within MacOS, CoconutBattery, and in Linux OSs I boot into. When I put my old battery in, it is detected and works fine.
I’ve tried (repeatedly) removing and re-seating the new battery, and also have reset the SMC and the PRAM. The weird thing is that (in Linux only) I can remove the power cable once the OS is running, and it will run ok for an extended time on the apparently undetectable battery.
I have a nasty feeling I damaged something in the Mac when I originally fitted the new battery - it’s possible I shorted something. But the fact that (i) the other battery behaves fine and (ii) the new battery worked perfectly for two days argues against this.
What do people think? Is it just the new battery that’s defective? Or have I damaged something on the motherboard?
=== Edited to add screenshots of Coconut
New Battery (not detected)
New Battery system info
Old Battery (detected)
Ist dies eine gute Frage?
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3 Kommentare
@quirky_cobra - Can you please post a snapshot of CoconutBattery so we can see what it is showing Bilder zu einer vorhandenen Frage hinzufügen
Also where did you buy the battery?
von Dan
Cheers Dan - this was bought off ebay last week, arrived and fitted on Saturday. I'll get a shot of CoconutBattery - but in outline it shows essentially nothing for the (bad) battery, cannot detect its presence at all.
von Jon Ayling
@danj - added screenshots of CoconutBattery for the new (not detected) and old (working) battery. Thanks!
von Jon Ayling