Fix an old powerbank with 18650 Li-Ion batteries

Let's get our hand dirty and fix an old power bank. I got this thing a few years ago but recently it died. Li-Ion 18650 cells inside just died and now it even can not do a full charge of a smartphone.
What we will do over here:

  • get this thing apart
  • solder together 3 18650 batteries I got for cheap from disassembled power tools battery packs
  • I will be coughing after inhaling too much of soldering acid fumes
  • have a nice talk about a zombie apocalypse, nuclear holocaust, communism and Kapton tape
  • get things done!

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