OK,it shouldn't have happened, but it did...got a new lipo with 5mm connectors - spanking new Maclan LiHv. Terminals are opposite to my old lipo so I swapped them over - or so I thought..

I just touched the bullet connector and it sparked. Obviously it was never fully connected. I swapped the power wires (properly this time) and cautiously powered up the RSX...it beeped, it was in Blinky, still works perfectly.

Have I just got really lucky, or should I turn it in for testing?