He works under his own brand though, I would argue that batteries made by the guy down the street have a higher brand awareness than "COCO" batteries which might also sell under name "BOBO", "AOAO", "AKKO", "LMYW", etc.

I am only pointing out that I would be concerned regardless of the source, chinese or local but suspect the local guy has a greater incentive to maintain his brand than the imported brand from china.