WARNING - re Lithium Power Bank
I just had to get rid of my Anker 20,000 mAh power bank when I discovered the batteries had swelled so much that they broke open the case. Anker is a top brand, and I have no problem ordering from them again, but I will change my storage practice.
I don't know if this power bank was Lithium-Ion or Lithium-Polymer, but my hunch is Lithium-Ion. In the future, I will store these kinds of devices in fireproof containers. I have two fire bags sold for charging, but I will also add a proper metal container.
"Never wrestle with a pig....the pig loves it and you end up covered in mud..." anon
My experience hours are >75,000 and I stopped counting in 2004.
Major Languages - 360 Macro Assembler, Intel Assembler, PLI/1, Pascal, C plus numerous job control and scripting