I recently bought a Mophie Powerstation XL from a well known national chain of Apple resellers in the UK. The spec for the device is 12,000 mah, and this was clearly on the box in big letters as its main marketing point. I charged it fully for 24hrs, and also flattened my iPad Mini Retina (battery c 6000 mah) ready to test the Mophie. Plugged the Mini into the Mophie and and it fully charged it, but the Mophie was then flat. WTF?? Then I looked closely at the tiny writing on the back of the Mophie and saw "EU 5900 mah". It was labelled as a Powerstation XL, not a Powerstation Duo or a Powerstation Duo XL which are similar Mophie products rated at 6000 mah. I took it back the the Apple Reseller who checked the other ones in the store which also say "EU 5900 mah". I have now left it with them to investigate. Googling I found one other person has reported the same thing with no follow up. Has anyone here got a Mophie Powerstation XL? if so what does the tiny writing on the back say?