- Nov 12, 2010
- CONUS, top left
This sounds very interesting. I have a soft spot for cr2 (my dream though, would be a 2 cell configuration)
2x (R)CR2 usually fit in most "50mm" tubes (17500/18500) ... voltage, of course, is much greater (ie, make sure driver can safely handle 6v for primaries, 9v for Li-Ion).