I am kind of annoyed how the ARE-C2 and some of these one size fits all chargers that can do aa's and 18650s and everything in between came out not long after I bought the original Fenix charger. Actually I'm pretty sure they replaced the original pretty fast...
Figures... What voltage are 16340s? Slightly above cr123's I'm assuming?
I guess I can't be too mad. That charger is a lot cheaper. Maybe I'll go ahead and get the ARE-C2.