Variable Wattage, Variable Whattage?

[Myrany]

Just one 18350? I think I'd like the shorter size with an 18350 but I'm worried that just one won't have enough life/power to last me the better part of the day and I'd end up stacking two of them. Right now I'm thinking about getting two 18650's so I can have one in the Vamo and a fully charged spare on hand just in case. If the one 18350 configuration will give me a decent battery life at around 8 watts, I'd rather go that route just for the smaller mod size.

I am doing the 18350 thing because I had a blond moment and ordered the wrong battery I had ment to get 18650s. A single 18350 lasts about as long (hours in a day) as one of my ego-C batterys.