You changing the resistance of the wire cutting it to different length. Will the BMS work correctly while balancing and checking the voltage of each cell under load?
Why do you even make the video with BMS connection if you can’t do that right? You made it wrong! First black wire goes to the (-) minus, but first red wire goes to the same cell plus (+) Next red to the next plus(+) and so on. No wonder that some of battery’s just burning 🔥 down if they have no BMS connection.
Look again at the video, it's wired correctly. First black wire goes to pack negative, second wire goes to the other side positive. It's a 2P pack so even though the positive wire is located on the cells next to the first group they are still electrically connected in parallel and act as a single cell.
