Originally Posted by DMcGrew
To me it just looks like the brightness level is different on all 3 of them. Just look at the gradient where the time and unlock slider are. They are clearly different on all 3. Plus the camera isn't perpendicular to the phone.. its tilted a little bit and that can also throw off the coloring.
Go to the article itself and look at the closeup of the three batteries. I think it shows more than just a brightness level difference. You can also see a sliver at the top end of the battery that's not completely filled in.
Test it yourself if you think it's BS... fully charge your battery and turn brightness up. Does it look like the picture?