alt Hacker NewsI bought myself an anker powerbank because of all the rave around them. Mine behaves incredibly strange. Charged in seconds, then not containing half a phone charge. For a 20.000 mAh this was really disappointing. Probably a one of but still leaves the impression that this was looked at because it ruined the price for others.
That's obviously a dud cell. Contact support if it's not several years old.