Got an Inspire v2 with a spare TB47. Not sure which one was the bad one, as i tore open both boxes at the same time and lost track of which battery came with the Inspire. Anyways, one of them charged fine. Plugged in the 2nd battery and got a way different blinking pattern. that's what mine did. not my video, but same thing. Opened up the battery. Positive lead is connected directly to the lipo. Negative seems to go to the controller board/charge board, then another black negative wire goes from the charge board to the negative lipo terminal. I chewed off the coating on one of the twistie ties that came on the charger cable, shoved it between the wire insulation on both ends to bridge the gap. so the lipo is effectively connected directly to the external terminals. Plugged it in for 10 seconds(charger made a strain noise so it definitely was pumping juice into the battery), pulled out the twistie tie, and now it charges normally. I'll see how long the pack lasts. I'll probably end up doing the external lipo mod on this one if the cells are damaged from being discharged for such a long period of time. The TB47 i opened definitely flies 5 minutes less than the other pack.