Where do you see that?
First I want to know the feature difference between Astro, PowerCore, PowerCore II, and PowerCore+. (WTF are PowerIQ, VoltageBoost, QuickCharge, etc.) Next I want to see something that compares product dimensions, weight, and mAh between all of their products. Recharge times would be ideal as well, but I understand those can vary based on ambient temperature and other factors.
It seems like that should be Step 1 for any decent marketing department, but either their website doesn't have this information or it's hidden very well: https://www.anker.com/products/taxons/107/Batteries