Glad Horizon pulled through. They were keeping the battery boards when we people sent in 2 DJI batteries. They were splitting one into 2x2S and keeping the boards so I knew they had some. If I remember correctly, when I shorted mine out, the switch side was dead... Even when I powered on the battery. And you want to solder your leads to the switched side. From what I remember, soldering pigtails to the unswitched side produced poor results in run time. I may be wrong but I could have sworn that was the case.