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!

Soldering, rosin, flux and a Stannol x32-10i flux pen

If you really really want, you can solder without flux. But it is a painful experience. Almost all modern solders have flux integrated into its core. And as long as you do not try to solder anything big, it's enough. Of course, sometimes it is not enough and you have to help yourself with additional flux.

My favorite solution lately is a flux pen. Like Stannol x32-10i

Soldering for beginners: ESC, PDB and all those cables…

As some of you might have noticed, I’ve started to publish videos on YouTube from time to time. I was rather not advertising them here. This will change and you might expect a series of overdued posts with some of my videos.

Today something hardware related: soldering for beginners using ESC, PDB and power cables on a mini-quad as an example.