That pack has 6 NCR18650F cells in it. I cut the top off and there is a circuit board which I cut all the wires going to it from the cells then cut the back side off the pack behind the circuit board but as you can see the pack is just pumped full of glue and I damaged 3 of the 6 cells trying to pry them out. I have 2 more of these packs but honestly the way this one came apart I wouldn't bother taking the other apart I will just toss them into a recycling bin.