Most of your time will be spent in this phase, if you are building your own pack from scratch. Equivalent packs cost $400 and up, something that I just can't justify. I wast about to settle for an SLA pack again (I used one on my old ebike. Heavy, degraded quickly in the high vibration environment, etc.)

So thankfully, I work at a computer repair shop. We get a fair few laptop batteries either from systems being recycled, or just old batteries after being replaced. Generally, one or a set of cells goes bad in these packs, while the others are often good as new. Rather than let these go to waste, I figured Id squeeze a little more life out of them. Best part is, they were free! There would have been a cost associated with sending these to a recycling center, and any leftover/bad cells will still be disposed of properly.

In this particular video, I am discussing building a 20ah pack. I have since changed plans and built a 10ah pack. Sadly there will not be a Part 2, at least in this manner. I made some mistakes that Ill talk about in an overview video of the bike, that lead to me making this decision. At some point I will do a proper series on how to construct a pack using recycled cells (I still have plenty left over ;) )