I 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.
Had a tangential issue with an Anker power bank (screen was sometimes showing bogus charge essentially), and can confirm Anker E-Mail support is pretty good in my experience, they sent me a second unit (even though the first is still functional and I still use it just fine to this day), free of charge after a brief exchange.
They also did a recall on speakers (under their soundcore subbrand) for the same thing. I'm not sure if this is good or bad - they proactively contacted me to let me know about the recall.
