carlosebermudez said:LOL I do have basi electricity knowledge, I have a hard time understanding complex cirquitry like what to test for on a BMS board, or how to bypass it to charge directly that one cell bank you saw on the video.
Do you have a 4.2VDC source? If so, if you have the video, this simple schematic https://cdn.shopify.com/s/files/1/0268/7529/7863/products/s-l500_6_baccf814-e5db-49c3-8cac-5efa02a3c389_2000x.jpg?v=1575057834 a voltmeter, and a couple of jumpers, should be feasible.