I really don't. I expect there are some people doing it, but I also expect they're not busy posting their stuff to YouTube. I learned what I learned with a lot of time spent in datasheets, PhD theses on lithium, and a background in electrical engineering that helped me make sense of the weird gaps. I'm no longer doing much with lithium beyond the occasional personal pack (which I still build to the same standards I built other packs to).
The best advice I have is to learn all you can from reading things, not watching things. The bits and pieces of solar/battery/energy work I've seen on YouTube as people link them tend heavily sensational and "WOW I NEARLY BLEW MYSELF UP!!!! big O YouTube emotion face" and I've no interest in any of that.
Also, you shouldn't assemble a pack with the batteries above about... oh, 3.5-3.6V/cell. Down there, there's typically not enough energy for the pack to get exciting if something does short. It'll get hot, it may vent a cell (again, do not breathe), but it probably won't have enough energy to enter a thermal runaway, which is something you want to avoid at all costs.
The best advice I have is to learn all you can from reading things, not watching things. The bits and pieces of solar/battery/energy work I've seen on YouTube as people link them tend heavily sensational and "WOW I NEARLY BLEW MYSELF UP!!!! big O YouTube emotion face" and I've no interest in any of that.
Also, you shouldn't assemble a pack with the batteries above about... oh, 3.5-3.6V/cell. Down there, there's typically not enough energy for the pack to get exciting if something does short. It'll get hot, it may vent a cell (again, do not breathe), but it probably won't have enough energy to enter a thermal runaway, which is something you want to avoid at all costs.