As battery’s degrade they don’t accept a large amount of power to attempt to preserve its life span and in this case it would appear that if they did replace the battery before it was shipped they might of either used a refurbished one and didn’t reset the logic board on the battery that contains its information such as its charge cycles, or they might of just plainly used a bad part. [br]
Hope this helps and if you have any questions feels free to comment!
Best regards -Activoid