New replacement battery low capacity?

bearington

macrumors member
Original poster
Jun 22, 2017
45
19
I recently bought an OEM battery for my MacBook Air 11", and the battery arrived with 1 charge cycle and battery health status of over 97%. 3 charge cycles later, the battery health is showing as 90.1% - does this sound right, or do I have a defective battery? Thanks in advance!

 

bearington

macrumors member
Original poster
Jun 22, 2017
45
19
The battery is 2 years old. This tells me that it’s been siting on a shelf collecting dust , while naturally degrading on the inside.


Send it back.
Thank you :) I'll be sending this one back.
 

Rocko99991

macrumors 6502a
Jul 25, 2017
969
1,220
I think that there is a way these resellers are resetting the cycle count. I have seen many used MB's that are worn with OEM battery that shows very low cycle counts.
 

ftaok

macrumors 603
Jan 23, 2002
6,201
1,221
East Coast
Honestly, for a battery as large as a laptop battery, I'd bite the bullet and pay for a real Apple battery. I wouldn't want to mess with the 3rd party battery lottery. I wouldn't trust anyone selling me an "OEM" battery except Apple. Too many Amazon vendors claim they have OEM batteries. Don't believe any of them.
 

VantaNoir

macrumors member
Feb 12, 2017
72
27
I agree. Only genuine Apple batteries, better peace of mind, will save you a headache in the long run. I am currently on a mid 2012 Air and changed the battery a few months ago, runs like it's brand new.
 

Rocko99991

macrumors 6502a
Jul 25, 2017
969
1,220
Honestly, for a battery as large as a laptop battery, I'd bite the bullet and pay for a real Apple battery. I wouldn't want to mess with the 3rd party battery lottery. I wouldn't trust anyone selling me an "OEM" battery except Apple. Too many Amazon vendors claim they have OEM batteries. Don't believe any of them.
I have had good luck with used OEM batteries on Ebay. I makes sure the seller has a stellar reputation and has sold many batteries. You can get low cycle count batts for not much money if you don't mind a 90% health or so-which is still better than third party gamble IMO.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.