I’m curious, because I have a very similar problem. But clicking your #batteryguide leads nowhere except for a page saying “There are no latest topics”.
Could you please provide a link in case others might land in here and attempt the same as I did?
Btw, when pluging my FP2 to my PC, it turns on, but the LED does not glow. I also cannot get past the boot screen, neither the recovery menu. Details here.