Anker Recalls Anker 535 Power Bank (PowerCore 20K) A1366
Anker "have discovered that due to a manufacturing condition, a small number of our Anker 535 Power Banks may overheat and pose a fire safety risk. The safety of our customers is Anker Innovations’ highest priority, and we have issued a voluntary recall of all Anker 535 Power Bank (PowerCore 20K) A1366 devices."
If anyone (or knows someone who) owns one of these, unplug this from the power source, stop using it and contact Anker.
Hope this helps.
This particular power bank seems to be not one marketed for Australia, thus there should not be a lot of local claims