Good point. The Triton can charge just about anything, once you set it up properly.

The Sirius is strictly for Rx and Tx batteries so it's 4, 5 or 8 cells, NiCd or NiMh only. Oops, scratch that. I was thinking about the Sirius Test, which is a discharger. The Sirius Pro will detect the number of cells automagically. It's pretty idiot-proof, which is good for me.