The PrecisePlus 16340 is thinner then some
mod makers 14500
devices and a full 15mm shorter and the PrecisePlus 18350 really kicks the 14500's battery life, so i just don't really see much of a reason for a 14500, not that it's a bad battery, but the PrecisePlus's diminensions are some of the smallest form factors in the industry as is, so i just don't know if it's necessary.