SXD-V3: 18650's or 18350's?

Would the high current draw of the SXD-V3 outputting 4 amps be a problem for 2 red efest imr 18350's in series? Or should I play it safe and go with two Panasonic 18650's?

I appreciate any input, and thank you in advance

They should be fine considering that the SXD is a buck driver (I assume)

Meaning that the input current draw will be lower than the output current to the diode.

If you still want to use 18350's the Efest purple batteries are a 'slight' upgrade, they can handle a maximum 10A discharge :evil:

Efest Purple IMR 18350 - 700mAh - Button Top

Thats great, thank you! I like the graph too